Cooking for two months.
* daemon: Rename public functions.
* Simplify set_server_start_time().
Conflicts:
server.c
# for example use the pattern */test/*
EXCLUDE_PATTERNS = *.cmdline.* \
- gui* \
gcc-compat.h \
fade.c \
*_command_list.h \
speex_cppflags := @speex_cppflags@
opus_cppflags := @opus_cppflags@
+vorbis_cppflags := @vorbis_cppflags@
arch_cppflags := @arch_cppflags@
osl_cppflags := @osl_cppflags@
id3tag_cppflags := @id3tag_cppflags@
openssl_cppflags := @openssl_cppflags@
+gcrypt_cppflags := @gcrypt_cppflags@
ogg_cppflags := @ogg_cppflags@
mad_cppflags := @mad_cppflags@
faad_cppflags := @faad_cppflags@
$(object_dir)/mp3_afh.o: CPPFLAGS += $(id3tag_cppflags)
$(object_dir)/crypt.o: CPPFLAGS += $(openssl_cppflags)
+$(object_dir)/gcrypt.o: CPPFLAGS += $(gcrypt_cppflags)
$(object_dir)/mp3dec_filter.o: CPPFLAGS += $(mad_cppflags)
$(object_dir)/compress_filter.o: CPPFLAGS += -O3
$(object_dir)/ao_write.o: CPPFLAGS += $(ao_cppflags)
$(object_dir)/aac_afh.o \
: CPPFLAGS += $(faad_cppflags)
+$(object_dir)/ogg_afh.o \
+$(object_dir)/oggdec_filter.o \
+: CPPFLAGS += $(vorbis_cppflags)
+
$(object_dir)/spx_common.o \
$(object_dir)/spxdec_filter.o \
$(object_dir)/spx_afh.o \
$(object_dir)/oggdec_filter.o \
$(object_dir)/ogg_afh.o \
$(object_dir)/ogg_afh_common.o \
+$(object_dir)/opus%.o \
: CPPFLAGS += $(ogg_cppflags)
$(object_dir)/%.o: %.c | $(object_dir)
NEWS
====
--------------------------------------------------
-0.5.3 (to be released) "symbolic synchronization"
--------------------------------------------------
+-----------------------------------------------
+0.5.4 (to be announced) "exponential alignment"
+-----------------------------------------------
+ * Minor cleanups to daemon.c.
+
+Download: ./releases/paraslash-git.tar.bz2
+
+---------------------------------------------
+0.5.3 (2014-08-01) "symbolic synchronization"
+---------------------------------------------
+
+Not many new features, but lots of fixes and usability improvements.
+
+ - para_gui has been converted to use the paraslash scheduler.
- Various alsa-related fixes, mostly for the raspberry pi.
+ - Many scheduler improvements and cleanups.
- The test suite has been extended to include sanity checks
for the generated man pages.
- ao_writer fixes. This writer was in a quite bad shape. Many
serious bugs have been fixed.
+ - new audiod command: version.
+ - Minor improvements to the bitstream API.
+ - The cpsi command now prints a meaningful error message if
+ none of the given patterns matched any audio file.
+
+Downloads: ./releases/paraslash-0.5.3.tar.bz2 (tarball),
+./releases/paraslash-0.5.3.tar.bz2.asc (signature)
----------------------------------------
0.5.2 (2014-04-11) "orthogonal interior"
fn->private_data = NULL;
}
-static int aacdec_post_select(__a_unused struct sched *s, struct task *t)
+static int aacdec_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct btr_node *btrn = fn->btrn;
struct private_aacdec_data *padd = fn->private_data;
int i, ret;
const char *audio_format_name(int);
void afh_get_chunk(long unsigned chunk_num, struct afh_info *afhi,
void *map, const char **buf, size_t *len);
+int32_t afh_get_start_chunk(int32_t approx_chunk_num,
+ const struct afh_info *afhi);
void afh_get_header(struct afh_info *afhi, uint8_t audio_format_id,
void *map, size_t mapsize, char **buf, size_t *len);
void afh_free_header(char *header_buf, uint8_t audio_format_id);
}
/**
- * Deallocate contents of a filled-in ahi structure
+ * Deallocate the contents of an afh_info structure.
*
* \param afhi The structure to clear.
*
- * The given pointer is kept, everything else is freed.
+ * This only frees the memory the various pointer fields of \a afhi point to.
+ * It does *not* free \a afhi itself.
*/
void clear_afhi(struct afh_info *afhi)
{
return afl[i].name;
}
+static inline size_t get_chunk_len(long unsigned chunk_num,
+ const struct afh_info *afhi)
+{
+ return afhi->chunk_table[chunk_num + 1] - afhi->chunk_table[chunk_num];
+}
+
/**
* Get one chunk of audio data.
*
{
size_t pos = afhi->chunk_table[chunk_num];
*buf = map + pos;
- *len = afhi->chunk_table[chunk_num + 1] - pos;
+ *len = get_chunk_len(chunk_num, afhi);
+}
+
+/**
+ * Find a suitable start chunk.
+ *
+ * \param approx_chunk_num Upper bound for the chunk number to return.
+ * \param afhi Needed for the chunk table.
+ *
+ * \return The first non-empty chunk <= \a approx_chunk_num.
+ *
+ * \sa \ref afh_get_chunk().
+ */
+int32_t afh_get_start_chunk(int32_t approx_chunk_num,
+ const struct afh_info *afhi)
+{
+ int32_t k;
+
+ for (k = PARA_MAX(0, approx_chunk_num); k >= 0; k--)
+ if (get_chunk_len(k, afhi) > 0)
+ break;
+ return k;
}
/**
return ret;
if (x >= pard->afhi.chunks_total)
return -ERRNO_TO_PARA_ERROR(EINVAL);
- pard->first_chunk = pard->current_chunk = x;
- rn->task.error = 0;
+ pard->first_chunk = afh_get_start_chunk(x, &pard->afhi);
+ pard->current_chunk = pard->first_chunk;
return 1;
}
return -E_BTR_NAVAIL;
if (PARA_ABS(conf->begin_chunk_arg) >= afhi->chunks_total)
goto out_clear_afhi;
if (conf->begin_chunk_arg >= 0)
- pard->first_chunk = conf->begin_chunk_arg;
+ pard->first_chunk = afh_get_start_chunk(
+ conf->begin_chunk_arg, &pard->afhi);
else
- pard->first_chunk = afhi->chunks_total + conf->begin_chunk_arg;
+ pard->first_chunk = afh_get_start_chunk(
+ afhi->chunks_total + conf->begin_chunk_arg,
+ &pard->afhi);
if (conf->end_chunk_given) {
ret = -ERRNO_TO_PARA_ERROR(EINVAL);
if (PARA_ABS(conf->end_chunk_arg) > afhi->chunks_total)
freep(&rn->private_data);
}
-static void afh_recv_pre_select(struct sched *s, struct task *t)
+static void afh_recv_pre_select(struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
struct private_afh_recv_data *pard = rn->private_data;
struct afh_info *afhi = &pard->afhi;
struct afh_recv_args_info *conf = rn->conf;
struct timeval chunk_time;
- int state = generic_recv_pre_select(s, t);
+ int state = generic_recv_pre_select(s, rn);
if (state <= 0)
return;
sched_request_barrier_or_min_delay(&chunk_time, s);
}
-static int afh_recv_post_select(__a_unused struct sched *s, struct task *t)
+static int afh_recv_post_select(__a_unused struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
struct afh_recv_args_info *conf = rn->conf;
struct private_afh_recv_data *pard = rn->private_data;
struct btr_node *btrn = rn->btrn;
*/
uint32_t cookie;
/** The associated task structure. */
- struct task task;
+ struct task *task;
};
extern int mmd_mutex;
return ret;
}
-static void signal_pre_select(struct sched *s, struct task *t)
+static void signal_pre_select(struct sched *s, void *context)
{
- struct signal_task *st = container_of(t, struct signal_task, task);
+ struct signal_task *st = context;
para_fd_set(st->fd, &s->rfds, &s->max_fileno);
}
-static int afs_signal_post_select(struct sched *s, __a_unused struct task *t)
+static int afs_signal_post_select(struct sched *s, __a_unused void *context)
{
int signum, ret;
para_install_sighandler(SIGTERM);
para_install_sighandler(SIGHUP);
- st->task.pre_select = signal_pre_select;
- st->task.post_select = afs_signal_post_select;
- sprintf(st->task.status, "signal task");
- register_task(s, &st->task);
+ st->task = task_register(&(struct task_info) {
+ .name = "signal",
+ .pre_select = signal_pre_select,
+ .post_select = afs_signal_post_select,
+ .context = st,
+
+ }, s);
}
static struct list_head afs_client_list;
struct timeval connect_time;
};
-static void command_pre_select(struct sched *s, struct task *t)
+static void command_pre_select(struct sched *s, void *context)
{
- struct command_task *ct = container_of(t, struct command_task, task);
+ struct command_task *ct = context;
struct afs_client *client;
para_fd_set(server_socket, &s->rfds, &s->max_fileno);
/** Shutdown connection if query has not arrived until this many seconds. */
#define AFS_CLIENT_TIMEOUT 3
-static int command_post_select(struct sched *s, struct task *t)
+static int command_post_select(struct sched *s, void *context)
{
- struct command_task *ct = container_of(t, struct command_task, task);
+ struct command_task *ct = context;
struct sockaddr_un unix_addr;
struct afs_client *client, *tmp;
int fd, ret;
- ret = task_get_notification(t);
+ ret = task_get_notification(ct->task);
if (ret < 0)
return ret;
ret = execute_server_command(&s->rfds);
ct->fd = setup_command_socket_or_die();
ct->cookie = cookie;
- ct->task.pre_select = command_pre_select;
- ct->task.post_select = command_post_select;
- sprintf(ct->task.status, "afs command task");
- register_task(s, &ct->task);
+ ct->task = task_register(&(struct task_info) {
+ .name = "afs command",
+ .pre_select = command_pre_select,
+ .post_select = command_post_select,
+ .context = ct,
+ }, s);
}
/**
s.default_timeout.tv_sec = 0;
s.default_timeout.tv_usec = 999 * 1000;
ret = schedule(&s);
+ sched_shutdown(&s);
out_close:
close_afs_tables();
out:
out:
if (ret < 0)
para_printf(&cad.pb, "%s\n", para_strerror(-ret));
- else if (cad.flags & CPSI_FLAG_VERBOSE) {
- if (pmd.num_matches > 0)
+ else if (pmd.num_matches > 0) {
+ if (cad.flags & CPSI_FLAG_VERBOSE)
para_printf(&cad.pb, "copied requested afsi from %s "
"to %u files\n", source_path, pmd.num_matches);
- else
- para_printf(&cad.pb, "nothing copied\n");
- }
+ } else
+ para_printf(&cad.pb, "no matches - nothing copied\n");
if (cad.pb.offset)
pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
free(cad.pb.buf);
return -E_ALSA;
}
-static void alsa_write_pre_select(struct sched *s, struct task *t)
+static void alsa_write_pre_select(struct sched *s, void *context)
{
struct pollfd pfd;
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_alsa_write_data *pad = wn->private_data;
int ret = btr_node_status(wn->btrn, wn->min_iqs, BTR_NT_LEAF);
free(pad);
}
-static int alsa_write_post_select(__a_unused struct sched *s,
- struct task *t)
+static int alsa_write_post_select(__a_unused struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_alsa_write_data *pad = wn->private_data;
struct btr_node *btrn = wn->btrn;
char *data;
snd_pcm_sframes_t frames;
int ret;
- ret = task_get_notification(t);
+ ret = task_get_notification(wn->task);
if (ret < 0)
goto err;
again:
pad->amp, pad->amp / 64.0 + 1.0);
}
-static int amp_post_select(__a_unused struct sched *s, struct task *t)
+static int amp_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct private_amp_data *pad = fn->private_data;
struct btr_node *btrn = fn->btrn;
int ret, factor = 64 + pad->amp;
wn->private_data = NULL;
}
-static void aow_pre_select(struct sched *s, struct task *t)
+static void aow_pre_select(struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_aow_data *pawd = wn->private_data;
int ret;
return -E_AO_PTHREAD;
}
-static int aow_post_select(__a_unused struct sched *s,
- struct task *t)
+static int aow_post_select(__a_unused struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_aow_data *pawd = wn->private_data;
int ret;
struct remove_attribute_action_data {
/** Message buffer. */
struct para_buffer pb;
- /** Numver of attributes removed. */
+ /** Number of attributes removed. */
int num_removed;
/** Bitwise "or" of the removed attributes. */
uint64_t mask_of_removed_atts;
* used for unset attributes.
*
* In practice, not all 64 attributes are defined. In this case, the function
- * only prints \a N + 1 charaters where \a N is the greatest id of a defined
+ * only prints \a N + 1 characters where \a N is the greatest id of a defined
* attribute.
*/
void get_attribute_bitmap(const uint64_t *atts, char *buf)
struct audioc_task {
int fd;
struct btr_node *btrn;
- struct task task;
+ struct task *task;
};
static struct i9e_completer audiod_completers[];
result->matches = i9e_complete_commands(ci->word, audiod_completers);
}
+static void version_completer(struct i9e_completion_info *ci,
+ struct i9e_completion_result *cr)
+{
+ char *opts[] = {"-v", NULL};
+
+ if (ci->word_num <= 2 && ci->word && ci->word[0] == '-')
+ i9e_complete_option(opts, ci, cr);
+}
+
static void stat_completer(struct i9e_completion_info *ci,
struct i9e_completion_result *cr)
{
{.name = NULL}
};
-static void audioc_pre_select(struct sched *s, struct task *t)
+static void audioc_pre_select(struct sched *s, void *context)
{
- struct audioc_task *at = container_of(t, struct audioc_task, task);
+ struct audioc_task *at = context;
int ret = btr_node_status(at->btrn, 0, BTR_NT_ROOT);
if (ret < 0)
para_fd_set(at->fd, &s->rfds, &s->max_fileno);
}
-static int audioc_post_select(struct sched *s, struct task *t)
+static int audioc_post_select(struct sched *s, void *context)
{
char *buf = NULL;
- struct audioc_task *at = container_of(t, struct audioc_task, task);
+ struct audioc_task *at = context;
int ret = btr_node_status(at->btrn, 0, BTR_NT_ROOT);
if (ret < 0)
return ret;
}
-static struct audioc_task audioc_task = {
- .task = {
- .pre_select = audioc_pre_select,
- .post_select = audioc_post_select,
- .status = "audioc task"
- },
-}, *at = &audioc_task;
+static struct audioc_task audioc_task, *at = &audioc_task;
static int audioc_i9e_line_handler(char *line)
{
args = NULL;
at->btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = "audioc line handler"));
- at->task.error = 0;
- register_task(&sched, &at->task);
+ at->task = task_register(&(struct task_info) {
+ .name = "audioc",
+ .pre_select = audioc_pre_select,
+ .post_select = audioc_post_select,
+ .context = at,
+ }, &sched);
i9e_attach_to_stdout(at->btrn);
return 1;
close:
goto out;
para_log = i9e_log;
ret = schedule(&sched);
+ sched_shutdown(&sched);
i9e_close();
para_log = stderr_log;
out:
*/
struct sched sched = {.max_fileno = 0};
-/**
- * The task for obtaining para_server's status (para_client stat).
- *
- * \sa struct task, struct sched.
- */
+/* The task for obtaining para_server's status (para_client stat). */
struct status_task {
/** The associated task structure of audiod. */
- struct task task;
+ struct task *task;
/** Client data associated with the stat task. */
struct client_task *ct;
/** Do not restart client command until this time. */
/** the local listening socket */
int fd;
/** the associated task structure */
- struct task task;
+ struct task *task;
};
/** iterate over all supported audio formats */
audio_formats[s->format], slot_num);
a->receiver->close(s->receiver_node);
btr_remove_node(&s->receiver_node->btrn);
+ task_reap(&s->receiver_node->task);
free(s->receiver_node);
s->receiver_node = NULL;
tv_add(now, &(struct timeval)EMBRACE(0, 200 * 1000),
PARA_INFO_LOG("closing %s\n", writer_names[wn->writer_num]);
w->close(wn);
btr_remove_node(&wn->btrn);
+ task_reap(&wn->task);
}
static void close_writers(struct slot_info *s)
if (f->close)
f->close(fn);
btr_remove_node(&fn->btrn);
+ task_reap(&fn->task);
}
free(s->fns);
s->fns = NULL;
continue;
if (!s->receiver_node)
continue;
- task_notify(&s->receiver_node->task, error);
+ task_notify(s->receiver_node->task, error);
}
}
s->fns = para_calloc(nf * sizeof(struct filter_node));
parent = s->receiver_node->btrn;
for (i = 0; i < nf; i++) {
+ char buf[20];
struct filter *f = filters + a->filter_nums[i];
fn = s->fns + i;
fn->filter_num = a->filter_nums[i];
fn->conf = a->filter_conf[i];
- fn->task.pre_select = f->pre_select;
- fn->task.post_select = f->post_select;
fn->btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = f->name, .parent = parent,
.handler = f->execute, .context = fn));
f->open(fn);
- register_task(&sched, &fn->task);
+ sprintf(buf, "%s (slot %d)", f->name, (int)(s - slot));
+ fn->task = task_register(&(struct task_info) {
+ .name = buf,
+ .pre_select = f->pre_select,
+ .post_select = f->post_select,
+ .context = fn,
+ }, &sched);
parent = fn->btrn;
PARA_NOTICE_LOG("%s filter %d/%d (%s) started in slot %d\n",
audio_formats[s->format], i, nf, f->name, (int)(s - slot));
- sprintf(fn->task.status, "%s (slot %d)", f->name, (int)(s - slot));
}
}
s->receiver_node = rn;
PARA_NOTICE_LOG("started %s: %s receiver in slot %d\n",
audio_formats[format], r->name, slot_num);
- rn->task.pre_select = r->pre_select;
- rn->task.post_select = r->post_select;
- sprintf(rn->task.status, "%s receiver node", r->name);
- register_task(&sched, &rn->task);
+ rn->task = task_register(&(struct task_info) {
+ .name = r->name,
+ .pre_select = r->pre_select,
+ .post_select = r->post_select,
+ .context = rn,
+ }, &sched);
return slot_num;
}
if (!s->receiver_node)
continue;
- if (s->receiver_node->task.error >= 0)
+ if (task_status(s->receiver_node->task) >= 0)
return true;
if (ss1 == ss2)
return true;
struct timeval rstime;
if (!s->receiver_node)
continue;
- if (s->receiver_node->task.error < 0)
+ if (task_status(s->receiver_node->task) < 0)
continue;
btr_get_node_start(s->receiver_node->btrn, &rstime);
if (newest_slot >= 0 && tv_diff(&rstime, &newest_rstime, NULL) < 0)
exit(EXIT_FAILURE);
}
-static void signal_pre_select(struct sched *s, struct task *t)
+static void signal_pre_select(struct sched *s, void *context)
{
- struct signal_task *st = container_of(t, struct signal_task, task);
+ struct signal_task *st = context;
para_fd_set(st->fd, &s->rfds, &s->max_fileno);
}
-static int signal_post_select(struct sched *s, __a_unused struct task *t)
+static int signal_post_select(struct sched *s, __a_unused void *context)
{
int signum;
-
signum = para_next_signal(&s->rfds);
switch (signum) {
case SIGINT:
return 0;
}
-static void signal_setup_default(struct signal_task *st)
+static void command_pre_select(struct sched *s, void *context)
{
- st->task.pre_select = signal_pre_select;
- st->task.post_select = signal_post_select;
- sprintf(st->task.status, "signal task");
-}
-
-static void command_pre_select(struct sched *s, struct task *t)
-{
- struct command_task *ct = container_of(t, struct command_task, task);
+ struct command_task *ct = context;
para_fd_set(ct->fd, &s->rfds, &s->max_fileno);
}
-static int command_post_select(struct sched *s, struct task *t)
+static int command_post_select(struct sched *s, void *context)
{
int ret;
- struct command_task *ct = container_of(t, struct command_task, task);
+ struct command_task *ct = context;
static struct timeval last_status_dump;
struct timeval tmp, delay;
bool force = true;
static void init_command_task(struct command_task *ct)
{
- ct->task.pre_select = command_pre_select;
- ct->task.post_select = command_post_select;
- ct->task.error = 0;
ct->fd = audiod_get_socket(); /* doesn't return on errors */
- sprintf(ct->task.status, "command task");
+
+ ct->task = task_register(&(struct task_info) {
+ .name = "command",
+ .pre_select = command_pre_select,
+ .post_select = command_post_select,
+ .context = ct,
+ }, &sched);
}
static void close_stat_pipe(void)
{
if (!stat_task->ct)
return;
+ task_reap(&stat_task->ct->task);
client_close(stat_task->ct);
stat_task->ct = NULL;
clear_and_dump_items();
if (s->format < 0)
return false;
- if (s->receiver_node && s->receiver_node->task.error >= 0)
+ if (s->receiver_node && task_status(s->receiver_node->task) >= 0)
return false;
for (i = 0; i < a->num_filters; i++)
- if (s->fns && s->fns[i].task.error >= 0)
+ if (s->fns && task_status(s->fns[i].task) >= 0)
return false;
if (a->num_writers > 0) {
for (i = 0; i < a->num_writers; i++)
- if (s->wns && s->wns[i].task.error >= 0)
+ if (s->wns && task_status(s->wns[i].task) >= 0)
return false;
} else {
- if (s->wns && s->wns[0].task.error >= 0)
+ if (s->wns && task_status(s->wns[0].task) >= 0)
return false;
}
return true;
{
int ret;
struct slot_info *sl;
- struct audio_format_info *a;
close_unused_slots();
if (audiod_status != AUDIOD_ON ||
return;
}
sl = slot + ret;
- a = afi + sl->format;
- if (a->num_filters)
- open_filters(sl);
+ open_filters(sl);
open_writers(sl);
activate_grab_clients(&sched);
btr_log_tree(sl->receiver_node->btrn, LL_NOTICE);
}
-static void status_pre_select(struct sched *s, struct task *t)
+static void status_pre_select(struct sched *s, void *context)
{
- struct status_task *st = container_of(t, struct status_task, task);
+ struct status_task *st = context;
int i, ret, cafn = stat_task->current_audio_format_num;
if (must_start_decoder())
}
/* restart the client task if necessary */
-static int status_post_select(struct sched *s, struct task *t)
+static int status_post_select(struct sched *s, void *context)
{
- struct status_task *st = container_of(t, struct status_task, task);
+ struct status_task *st = context;
if (audiod_status == AUDIOD_OFF) {
if (!st->ct)
goto out;
- if (st->ct->task.error >= 0) {
- task_notify(&st->ct->task, E_AUDIOD_OFF);
+ if (task_status(st->ct->task) >= 0) {
+ task_notify(st->ct->task, E_AUDIOD_OFF);
goto out;
}
close_stat_pipe();
struct timeval diff;
tv_diff(now, &st->last_status_read, &diff);
if (diff.tv_sec > 61)
- task_notify(&st->ct->task, E_STATUS_TIMEOUT);
+ task_notify(st->ct->task, E_STATUS_TIMEOUT);
goto out;
}
btr_merge(st->btrn, st->min_iqs);
sz = btr_next_buffer(st->btrn, &buf);
ret = for_each_stat_item(buf, sz, update_item);
if (ret < 0) {
- task_notify(&st->ct->task, -ret);
+ task_notify(st->ct->task, -ret);
goto out;
}
if (sz != ret) {
static void init_status_task(struct status_task *st)
{
memset(st, 0, sizeof(struct status_task));
- st->task.pre_select = status_pre_select;
- st->task.post_select = status_post_select;
st->sa_time_diff_sign = 1;
st->clock_diff_count = conf.clock_diff_count_arg;
st->current_audio_format_num = -1;
- sprintf(st->task.status, "stat");
st->btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = "stat"));
+
+ stat_task->task = task_register(&(struct task_info) {
+ .name = "stat",
+ .pre_select = status_pre_select,
+ .post_select = status_post_select,
+ .context = stat_task,
+ }, &sched);
}
static void set_initial_status(void)
FOR_EACH_SLOT(i)
clear_slot(i);
setup_signal_handling();
- signal_setup_default(sig_task);
init_status_task(stat_task);
init_command_task(cmd_task);
if (conf.daemon_given)
daemonize(false /* parent exits immediately */);
- register_task(&sched, &sig_task->task);
- register_task(&sched, &cmd_task->task);
- register_task(&sched, &stat_task->task);
+ sig_task->task = task_register(&(struct task_info) {
+ .name = "signal",
+ .pre_select = signal_pre_select,
+ .post_select = signal_post_select,
+ .context = sig_task,
+ }, &sched);
+
sched.default_timeout.tv_sec = 2;
sched.default_timeout.tv_usec = 999 * 1000;
ret = schedule(&sched);
+ sched_shutdown(&sched);
PARA_EMERG_LOG("%s\n", para_strerror(-ret));
return EXIT_FAILURE;
N: tasks
D: list current tasks
U: tasks
-H: print the list of task ids together with the status of each task
+H: Print the list of task ids together with the status of each task.
---
N: term
D: terminate audiod
U: term
H: Stop all decoders, shut down connection to para_server and exit.
+---
+N: version
+D: print the version of para_audiod
+U: version [-v]
+H: If the -v option is given, a more detailed version text is printed.
#include "string.h"
#include "write.h"
#include "fd.h"
+#include "version.h"
#include "audiod_command_list.h"
extern struct sched sched;
return 1;
}
+static int com_version(int fd, int argc, char **argv)
+{
+ int ret;
+ char *msg;
+
+ if (argc > 1 && strcmp(argv[1], "-v") == 0)
+ msg = make_message("%s", version_text("audiod"));
+ else
+ msg = make_message("%s\n", version_single_line("audiod"));
+ ret = client_write(fd, msg);
+ free(msg);
+ if (ret >= 0)
+ close(fd);
+ return ret;
+}
+
static int check_perms(uid_t uid)
{
int i;
* For licencing details see COPYING.LIB.
*/
-/**
- * \file bitstream.c Bitstream API.
- */
+/** \file bitstream.c Bitstream API for the wma decoder. */
#include <stdlib.h>
#include <inttypes.h>
const void *bits, const void *codes, int codes_size,
uint32_t code_prefix, int n_prefix)
{
- int i, j, k, n, table_size, table_index, nb, n1, idx, code_prefix2,
- symbol;
+ int i, j, k, n, table_size, table_index, nb, n1, idx;
uint32_t code;
VLC_TYPE(*table)[2];
table = &vlc->table[table_index];
for (i = 0; i < table_size; i++) {
- table[i][1] = 0; //bits
- table[i][0] = -1; //codes
+ table[i][1] = 0; /* bits */
+ table[i][0] = -1; /* codes */
}
- /* map codes and compute auxillary table sizes */
+ /* map codes and compute auxiliary table sizes */
for (i = 0; i < nb_codes; i++) {
GET_DATA(n, bits, i, 1);
- GET_DATA(code, codes, i, codes_size);
/* we accept tables with holes */
+ n -= n_prefix;
if (n <= 0)
continue;
- symbol = i;
+ GET_DATA(code, codes, i, codes_size);
/* if code matches the prefix, it is in the table */
- n -= n_prefix;
- code_prefix2 = code >> n;
- if (n <= 0 || code_prefix2 != code_prefix)
+ if ((code >> n) != code_prefix)
continue;
if (n <= table_nb_bits) {
/* no need to add another table */
j = (code << (table_nb_bits - n)) & (table_size - 1);
nb = 1 << (table_nb_bits - n);
for (k = 0; k < nb; k++) {
- if (table[j][1] /* bits */ != 0) {
- PARA_EMERG_LOG("incorrect code\n");
- exit(EXIT_FAILURE);
- }
- table[j][1] = n; //bits
- table[j][0] = symbol;
+ assert(table[j][1] == 0); /* incorrect code */
+ table[j][1] = n; /* bits */
+ table[j][0] = i;
j++;
}
} else {
n -= table_nb_bits;
j = (code >> n) & ((1 << table_nb_bits) - 1);
/* compute table size */
- n1 = -table[j][1]; //bits
+ n1 = -table[j][1]; /* bits */
if (n > n1)
n1 = n;
- table[j][1] = -n1; //bits
+ table[j][1] = -n1; /* bits */
}
}
- /* fill auxillary tables recursively */
+ /* fill auxiliary tables recursively */
for (i = 0; i < table_size; i++) {
- n = table[i][1]; //bits
+ n = table[i][1]; /* bits */
if (n < 0) {
n = -n;
if (n > table_nb_bits) {
n = table_nb_bits;
- table[i][1] = -n; //bits
+ table[i][1] = -n; /* bits */
}
idx = build_table(vlc, n, nb_codes, bits, codes,
codes_size, (code_prefix << table_nb_bits) | i,
n_prefix + table_nb_bits);
/* vlc->table might have changed */
table = &vlc->table[table_index];
- table[i][0] = idx; //code
+ table[i][0] = idx; /* code */
}
}
return table_index;
* Build VLC decoding tables suitable for use with get_vlc().
*
* \param vlc The structure to be initialized.
- *
- * \param nb_bits Set the decoding table size (2^nb_bits) entries. The bigger
- * it is, the faster is the decoding. But it should not be too big to save
- * memory and L1 cache. '9' is a good compromise.
- *
- * \param nb_codes Number of vlcs codes.
- *
+ * \param nb_bits Set the decoding table size (2^nb_bits) entries.
+ * \param nb_codes Number of vlc codes.
* \param bits Table which gives the size (in bits) of each vlc code.
- *
* \param codes Table which gives the bit pattern of of each vlc code.
- *
* \param codes_size The number of bytes of each entry of the \a codes tables.
*
+ * The bigger \a nb_bits is, the faster is the decoding. But it should not be
+ * too big to save memory and L1 cache. '9' is a good compromise.
+ *
* The wrap and size parameters allow to use any memory configuration and
* types (byte/word/long) to store the bits and codes tables.
*/
* Parse a vlc code.
*
* \param gbc The getbit context structure.
- *
* \param table The vlc tables to use.
- *
- * \param bits The number of bits which will be read at once, must be
- * identical to nb_bits in init_vlc().
- *
- * \param max_depth The number of times bits bits must be read to completely
+ * \param bits The number of bits which will be read at once.
+ * \param max_depth The number of times \a bits bits must be read to completely
* read the longest vlc code = (max_vlc_length + bits - 1) / bits.
*
+ * The \a bits parameter must be identical to the \a nb_bits value supplied to
+ * \ref init_vlc().
+ *
* \return The vlc code.
*/
int get_vlc(struct getbit_context *gbc, VLC_TYPE(*table)[2], int bits,
/**
* Initialize a getbit_context structure.
*
- * \param buffer The bitstream buffer. It must be 4 bytes larger then the
- * actual read bits because the bitstream reader might read 32 bits at once and
- * could read over the end.
+ * \param gbc The structure to initialize.
+ * \param buffer The bitstream buffer.
+ * \param size The size of the buffer in bytes.
*
- * \param bit_size The size of the buffer in bytes.
+ * The bitstream buffer must be 4 bytes larger then the actual read bits
+ * because the bitstream reader might read 32 bits at once and could read over
+ * the end.
*/
static inline void init_get_bits(struct getbit_context *gbc,
const uint8_t *buffer, int size)
void free_vlc(struct vlc *vlc);
int get_vlc(struct getbit_context *gbc, VLC_TYPE(*table)[2], int bits,
int max_depth);
-
#include "afs_completion.h"
struct exec_task {
- struct task task;
+ struct task *task;
struct btr_node *btrn;
char *result_buf;
size_t result_size;
};
-static void exec_pre_select(struct sched *s, struct task *t)
+static void exec_pre_select(struct sched *s, void *context)
{
- struct exec_task *et = container_of(t, struct exec_task, task);
+ struct exec_task *et = context;
int ret = btr_node_status(et->btrn, 0, BTR_NT_LEAF);
if (ret != 0)
sched_min_delay(s);
}
-static int exec_post_select(__a_unused struct sched *s, struct task *t)
+static int exec_post_select(__a_unused struct sched *s, void *context)
{
- struct exec_task *et = container_of(t, struct exec_task, task);
+ struct exec_task *et = context;
struct btr_node *btrn = et->btrn;
char *buf;
size_t sz;
int ret;
struct sched command_sched = {.default_timeout = {.tv_sec = 1}};
struct exec_task exec_task = {
- .task = {
- .pre_select = exec_pre_select,
- .post_select = exec_post_select,
- .status = "client exec task",
- },
.result_buf = para_strdup(""),
.result_size = 1,
};
goto out;
exec_task.btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = "exec_collect"));
- register_task(&command_sched, &exec_task.task);
+ exec_task.task = task_register(&(struct task_info) {
+ .name = "client exec",
+ .pre_select = exec_pre_select,
+ .post_select = exec_post_select,
+ .context = &exec_task,
+ }, &command_sched);
ret = client_connect(ct, &command_sched, NULL, exec_task.btrn);
if (ret < 0)
goto out;
schedule(&command_sched);
+ sched_shutdown(&command_sched);
*result = exec_task.result_buf;
btr_remove_node(&exec_task.btrn);
ret = 1;
goto out;
para_log = i9e_log;
ret = schedule(&sched);
+ sched_shutdown(&sched);
i9e_close();
para_log = stderr_log;
out:
struct supervisor_task {
bool stdout_task_started;
- struct task task;
+ struct task *task;
};
-static int supervisor_post_select(struct sched *s, struct task *t)
+static int supervisor_post_select(struct sched *s, void *context)
{
- struct supervisor_task *svt = container_of(t, struct supervisor_task,
- task);
+ struct supervisor_task *svt = context;
+ int ret = task_status(ct->task);
- if (ct->task.error < 0)
- return ct->task.error;
+ if (ret < 0)
+ return ret;
if (!svt->stdout_task_started && ct->status == CL_EXECUTING) {
- stdout_set_defaults(&sot);
- register_task(s, &sot.task);
+ stdout_task_register(&sot, s);
svt->stdout_task_started = true;
return 1;
}
if (ct->status == CL_SENDING) {
- stdin_set_defaults(&sit);
- register_task(s, &sit.task);
+ stdin_task_register(&sit, s);
return -E_TASK_STARTED;
}
return 0;
}
-static struct supervisor_task supervisor_task = {
- .task = {
- .post_select = supervisor_post_select,
- .status = "supervisor task"
- }
-};
+static struct supervisor_task supervisor_task;
/**
* The client program to connect to para_server.
goto out;
sot.btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = "stdout", .parent = ct->btrn[0]));
- register_task(&sched, &supervisor_task.task);
+ supervisor_task.task = task_register(&(struct task_info) {
+ .name = "supervisor",
+ .post_select = supervisor_post_select,
+ .context = &supervisor_task,
+ }, &sched);
+
ret = schedule(&sched);
- if (ret >= 0 && ct->task.error < 0) {
- switch(ct->task.error) {
- /* these are not errors */
- case -E_SERVER_CMD_SUCCESS:
- case -E_EOF:
- case -E_SERVER_EOF:
- case -E_BTR_EOF:
- ret = 0;
- break;
- default: ret = -E_SERVER_CMD_FAILURE;
+ if (ret >= 0) {
+ ret = task_status(ct->task);
+ if (ret < 0) {
+ switch (ret) {
+ /* these are not errors */
+ case -E_SERVER_CMD_SUCCESS:
+ case -E_EOF:
+ case -E_SERVER_EOF:
+ case -E_BTR_EOF:
+ ret = 0;
+ break;
+ default: ret = -E_SERVER_CMD_FAILURE;
+ }
}
}
+ sched_shutdown(&sched);
out:
if (ret < 0)
PARA_ERROR_LOG("%s\n", para_strerror(-ret));
/** Paraslash user name. */
char *user;
/** The client task structure. */
- struct task task;
+ struct task *task;
/** List of features supported by the server. */
char **features;
};
free(ct);
}
-/**
+/*
* The preselect hook for server commands.
*
- * \param s Pointer to the scheduler.
- * \param t Pointer to the task struct for this command.
- *
* The task pointer must contain a pointer to the initialized client data
* structure as it is returned by client_open().
*
* This function checks the state of the connection and adds the file descriptor
- * of the connection to the read or write fd set of \a s accordingly.
- *
- * \sa register_task() client_open(), struct sched, struct task.
+ * of the connection to the read or write fd set of s accordingly.
*/
-static void client_pre_select(struct sched *s, struct task *t)
+static void client_pre_select(struct sched *s, void *context)
{
int ret;
- struct client_task *ct = container_of(t, struct client_task, task);
+ struct client_task *ct = context;
if (ct->scc.fd < 0)
return;
return send_sb(ct, 0, command, len, SBD_COMMAND, false);
}
-/**
+/*
* The post select hook for client commands.
*
- * \param s Pointer to the scheduler.
- * \param t Pointer to the task struct for this command.
- *
* Depending on the current state of the connection and the status of the read
- * and write fd sets of \a s, this function performs the necessary steps to
- * authenticate the connection, to send the command given by \a t->private_data
+ * and write fd sets of s, this function performs the necessary steps to
+ * authenticate the connection, to send the command given by t->private_data
* and to receive para_server's output, if any.
- *
- * \sa struct sched, struct task.
*/
-static int client_post_select(struct sched *s, struct task *t)
+static int client_post_select(struct sched *s, void *context)
{
- struct client_task *ct = container_of(t, struct client_task, task);
+ struct client_task *ct = context;
int ret = 0;
size_t n;
char buf[CLIENT_BUFSIZE];
- ret = task_get_notification(t);
+ ret = task_get_notification(ct->task);
if (ret < 0)
goto out;
if (ct->scc.fd < 0)
EMBRACE(.name = "client recv", .parent = NULL, .child = child));
ct->btrn[1] = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = "client send", .parent = parent, .child = NULL));
- ct->task.pre_select = client_pre_select;
- ct->task.post_select = client_post_select;
- ct->task.error = 0;
- sprintf(ct->task.status, "client");
- register_task(s, &ct->task);
+
+ ct->task = task_register(&(struct task_info) {
+ .name = "client",
+ .pre_select = client_pre_select,
+ .post_select = client_post_select,
+ .context = ct,
+ }, s);
return 1;
err_out:
close(ct->scc.fd);
free(fn->private_data);
}
-static int compress_post_select(__a_unused struct sched *s, struct task *t)
+static int compress_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct private_compress_data *pcd = fn->private_data;
struct btr_node *btrn = fn->btrn;
bool inplace = btr_inplace_ok(btrn);
fi
AC_CHECK_HEADERS([ogg/ogg.h], [], [ have_ogg="no"; ])
AC_CHECK_LIB([ogg], [ogg_stream_init], [], [ have_ogg="no" ])
+CPPFLAGS="$OLD_CPPFLAGS"
+LDFLAGS="$OLD_LDFLAGS"
+LIBS="$OLD_LIBS"
have_vorbis="yes"
have_speex="yes"
have_opus="yes"
if test "$have_ogg" = "yes"; then
+ OLD_CPPFLAGS="$CPPFLAGS"
+ OLD_LDFLAGS="$LDFLAGS"
+ OLD_LIBS="$LIBS"
# vorbis
if test -n "$with_vorbis_headers"; then
vorbis_cppflags="-I$with_vorbis_headers"
fi
AC_CHECK_HEADERS([vorbis/codec.h], [], [ have_vorbis="no" ])
AC_CHECK_LIB([vorbis], [vorbis_info_init], [], [ have_vorbis="no" ])
+ CPPFLAGS="$OLD_CPPFLAGS"
+ LDFLAGS="$OLD_LDFLAGS"
+ LIBS="$OLD_LIBS"
# speex
+ OLD_CPPFLAGS="$CPPFLAGS"
+ OLD_LDFLAGS="$LDFLAGS"
+ OLD_LIBS="$LIBS"
if test -n "$with_speex_headers"; then
speex_cppflags="-I$with_speex_headers"
CPPFLAGS="$CPPFLAGS $speex_cppflags"
fi
AC_CHECK_LIB([speex], [speex_decoder_init], [], [ have_speex="no" ])
AC_CHECK_HEADERS([speex/speex.h], [], [ have_speex="no" ])
+ CPPFLAGS="$OLD_CPPFLAGS"
+ LDFLAGS="$OLD_LDFLAGS"
+ LIBS="$OLD_LIBS"
# opus
+ OLD_CPPFLAGS="$CPPFLAGS"
+ OLD_LDFLAGS="$LDFLAGS"
+ OLD_LIBS="$LIBS"
if test -n "$with_opus_headers"; then
opus_cppflags="-I$with_opus_headers"
CPPFLAGS="$CPPFLAGS $opus_cppflags"
fi
AC_CHECK_LIB([opus], [opus_multistream_decode], [], [ have_opus="no" ])
AC_CHECK_HEADERS([opus/opus.h], [], [ have_opus="no" ])
+ CPPFLAGS="$OLD_CPPFLAGS"
+ LDFLAGS="$OLD_LDFLAGS"
+ LIBS="$OLD_LIBS"
else
AC_MSG_WARN([vorbis/speex/opus depend on libogg, which was not detected])
have_vorbis="no"
fi
if test "$have_vorbis" = "yes"; then
AC_DEFINE(HAVE_OGGVORBIS, 1, define to 1 to turn on ogg/vorbis support)
+ AC_SUBST(vorbis_cppflags)
vorbis_ldflags="$vorbis_libs -lvorbis -lvorbisfile"
AC_SUBST(vorbis_ldflags)
fi
else
AC_MSG_WARN([no ogg/opus $msg])
fi
-CPPFLAGS="$OLD_CPPFLAGS"
-LDFLAGS="$OLD_LDFLAGS"
-LIBS="$OLD_LIBS"
########################################################################### faad
have_faad=yes
OLD_CPPFLAGS="$CPPFLAGS"
fi
if test "$have_core_audio" = "yes"; then
audiod_errlist_objs="$audiod_errlist_objs osx_write ipc"
- audiod_cmdline_objs="$audiod_cmdline_objs osx_write.cmdline"
+ audiod_cmdline_objs="$audiod_cmdline_objs osx_write"
fi
if test "$have_vorbis" = "yes"; then
audiod_errlist_objs="$audiod_errlist_objs oggdec_filter"
gui
gui_theme
time
+ sched
version
ggo
"
"
if test "$have_core_audio" = "yes"; then
play_errlist_objs="$play_errlist_objs osx_write ipc"
- play_cmdline_objs="$play_cmdline_objs osx_write.cmdline"
+ play_cmdline_objs="$play_cmdline_objs osx_write"
fi
if test "$have_vorbis" = "yes" || \
test "$have_speex" = "yes" || \
if test "$have_core_audio" = "yes"; then
write_errlist_objs="$write_errlist_objs osx_write ipc"
- write_cmdline_objs="$write_cmdline_objs osx_write.cmdline"
+ write_cmdline_objs="$write_cmdline_objs osx_write"
writers="$writers osx"
default_writer="OSX_WRITE"
fi
return tmp;
}
-static void dccp_recv_pre_select(struct sched *s, struct task *t)
+static void dccp_recv_pre_select(struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
- t->error = 0;
- if (generic_recv_pre_select(s, t) <= 0)
+ if (generic_recv_pre_select(s, rn) <= 0)
return;
para_fd_set(rn->fd, &s->rfds, &s->max_fileno);
}
-static int dccp_recv_post_select(struct sched *s, struct task *t)
+static int dccp_recv_post_select(struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
struct btr_node *btrn = rn->btrn;
struct iovec iov[2];
int ret, iovcnt;
size_t num_bytes;
- ret = task_get_notification(t);
+ ret = task_get_notification(rn->task);
if (ret < 0)
goto out;
ret = btr_node_status(btrn, 0, BTR_NT_ROOT);
shift
shift
-LC_ALL=C gcc -MM -MG "$@" \
+LC_ALL=C cc -MM -MG "$@" \
| sed -e "s@^\(.*\)\.o:@$dep_dir/\1.d $object_dir/\1.o:@" \
-e "s@[ ^]\([a-zA-Z0-9_]\{1,\}\.cmdline.h\)@ $cmdline_dir/\1@g"
#define TIME_ERRORS
#define CLOSE_ON_FORK_ERRORS
#define DAEMON_ERRORS
-#define GUI_ERRORS
#define GUI_THEME_ERRORS
#define RINGBUFFER_ERRORS
#define SCORE_ERRORS
-#define RBTREE_ERRORS
#define RECV_ERRORS
#define IPC_ERRORS
#define DCCP_SEND_ERRORS
PARA_ERROR(FLACDEC_DECODER_INIT, "could not init stream decoder"), \
PARA_ERROR(FLACDEC_EOF, "flacdec encountered end of file condition"), \
+#define GUI_ERRORS \
+ PARA_ERROR(GUI_SIGCHLD, "received SIGCHLD"), \
#define FLAC_AFH_ERRORS \
PARA_ERROR(FLAC_CHAIN_ALLOC, "could not create metadata chain"), \
fn->private_data = NULL;
}
-static int fecdec_post_select(__a_unused struct sched *s, struct task *t)
+static int fecdec_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct btr_node *btrn = fn->btrn;
int ret;
struct fec_header h;
return ret;
}
-static void file_write_pre_select(struct sched *s, struct task *t)
+static void file_write_pre_select(struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_file_write_data *pfwd = wn->private_data;
int ret = btr_node_status(wn->btrn, wn->min_iqs, BTR_NT_LEAF);
free(pfwd);
}
-static int file_write_post_select(__a_unused struct sched *s,
- struct task *t)
+static int file_write_post_select(__a_unused struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_file_write_data *pfwd = wn->private_data;
struct btr_node *btrn = wn->btrn;
int ret;
char *buf;
size_t bytes;
- ret = task_get_notification(t);
+ ret = task_get_notification(wn->task);
if (ret < 0)
goto out;
ret = btr_node_status(btrn, wn->min_iqs, BTR_NT_LEAF);
goto out;
sit->btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = "stdin"));
- stdin_set_defaults(sit);
- register_task(&s, &sit->task);
+ stdin_task_register(sit, &s);
fns = para_malloc(conf.filter_given * sizeof(*fns));
for (i = 0, parent = sit->btrn; i < conf.filter_given; i++) {
char *fa = conf.filter_arg[i];
struct filter_node *fn;
+ struct task_info ti;
fn = fns[i] = para_calloc(sizeof(*fn));
ret = check_filter_arg(fa, &fn->conf);
}
fn->filter_num = ret;
f = filters + fn->filter_num;
- sprintf(fn->task.status, "%s", f->name);
PARA_DEBUG_LOG("filter #%d: %s\n", i, f->name);
fn->btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = f->name, .parent = parent,
.handler = f->execute, .context = fn));
- fn->task.pre_select = f->pre_select;
- fn->task.post_select = f->post_select;
+ ti.name = f->name;
+ ti.pre_select = f->pre_select;
+ ti.post_select = f->post_select;
+ ti.context = fn;
f->open(fn);
- register_task(&s, &fn->task);
+ fn->task = task_register(&ti, &s);
parent = fn->btrn;
}
sot->btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = "stdout", .parent = parent));
- stdout_set_defaults(sot);
- register_task(&s, &sot->task);
+ stdout_task_register(sot, &s);
s.default_timeout.tv_sec = 1;
s.default_timeout.tv_usec = 0;
btr_log_tree(sit->btrn, LL_INFO);
ret = schedule(&s);
+ sched_shutdown(&s);
out_cleanup:
for (i--; i >= 0; i--) {
struct filter_node *fn = fns[i];
/** The buffer tree node. */
struct btr_node *btrn;
/** The task corresponding to this filter node. */
- struct task task;
+ struct task *task;
/** The minimal input queue size, see \ref btr_node_status(). */
size_t min_iqs;
};
* this function is to set file descriptors to be watched by the
* subsequent select call to the two fd sets.
*/
- void (*pre_select)(struct sched *s, struct task *t);
+ void (*pre_select)(struct sched *s, void *context);
/**
* Convert (filter) the given data.
*
* Pointer to the converting function of the filter. On errors, the
* post_select function is supposed to return a negative error code.
*/
- int (*post_select)(struct sched *s, struct task *t);
+ int (*post_select)(struct sched *s, void *context);
/**
* Answer a buffer tree query.
*
void filter_init(void);
int check_filter_arg(char *filter_arg, void **conf);
void print_filter_helps(unsigned flags);
-void generic_filter_pre_select(struct sched *s, struct task *t);
+void generic_filter_pre_select(struct sched *s, void *context);
int decoder_execute(const char *cmd, unsigned sample_rate, unsigned channels,
char **result);
* Set select timeout of the scheduler.
*
* \param s The scheduler.
- * \param t The task struct of this filter.
+ * \param context Pointer to the filter node (task context).
*
* This looks at the status of the btr node of the filter. If data is available
* in the input queue of the filter, or if an error occurred, a minimal timeout
* for the next select call is requested from the scheduler. Otherwise the
* scheduler timeout is left unchanged.
*/
-void generic_filter_pre_select(struct sched *s, struct task *t)
+void generic_filter_pre_select(struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
- t->error = 0;
if (btr_node_status(fn->btrn, fn->min_iqs, BTR_NT_INTERNAL) != 0)
sched_min_delay(s);
}
return btr_get_output_queue_size(btrn) > FLACDEC_MAX_OUTPUT_SIZE;
}
-static void flacdec_pre_select(struct sched *s, struct task *t)
+static void flacdec_pre_select(struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct private_flacdec_data *pfd = fn->private_data;
struct btr_node *btrn = fn->btrn;
int ret;
return sched_min_delay(s);
}
-static int flacdec_post_select(__a_unused struct sched *s, struct task *t)
+static int flacdec_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct private_flacdec_data *pfd = fn->private_data;
struct btr_node *btrn = fn->btrn;
int ret;
/** The point of the grab client's node in the buffer tree. */
struct btr_node *btrn;
/* The task of this grab client. */
- struct task task;
+ struct task *task;
/** Belongs to either the active or the inactive list. */
struct list_head node;
};
return -E_GC_WRITE;
}
-static void gc_pre_select(struct sched *s, struct task *t)
+static void gc_pre_select(struct sched *s, void *context)
{
- struct grab_client *gc = container_of(t, struct grab_client, task);
+ struct grab_client *gc = context;
int ret = btr_node_status(gc->btrn, 0, BTR_NT_LEAF);
if (ret == 0)
* We need this forward declaration as post_select() needs
* activate_grab_client and vice versa.
*/
-static int gc_post_select(struct sched *s, struct task *t);
+static int gc_post_select(struct sched *s, void *context);
/**
* Move a grab client to the active list and start it.
list_move(&gc->node, &active_grab_client_list);
gc->btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = name, .parent = parent));
- gc->task.pre_select = gc_pre_select;
- gc->task.post_select = gc_post_select;
- snprintf(gc->task.status, sizeof(gc->task.status) - 1, "%s", name);
- gc->task.status[sizeof(gc->task.status) - 1] = '\0';
- gc->task.error = 0;
- register_task(s, &gc->task);
+
+ gc->task = task_register(&(struct task_info) {
+ .name = name,
+ .pre_select = gc_pre_select,
+ .post_select = gc_post_select,
+ .context = gc,
+ }, s);
}
/**
return 0;
}
-static int gc_post_select(__a_unused struct sched *s, struct task *t)
+static int gc_post_select(__a_unused struct sched *s, void *context)
{
- struct grab_client *gc = container_of(t, struct grab_client, task);
+ struct grab_client *gc = context;
struct btr_node *btrn = gc->btrn;
int ret;
size_t sz;
INIT_GUI_ERRLISTS;
static char *stat_content[NUM_STAT_ITEMS];
-#define STANDARD_STATUS_BAR "para_gui " PACKAGE_VERSION " (hit ? for help)"
-
-static int signal_pipe;
-
-static struct win_data {
+static struct gui_window {
WINDOW *win;
- size_t begx;
- size_t begy;
- size_t cols;
- size_t lines;
+ bool needs_update;
} top, bot, sb, in, sep;
+/** How many lines of output to remember. */
#define RINGBUFFER_SIZE 512
+
struct rb_entry {
char *msg;
size_t len;
int color;
};
static struct ringbuffer *bot_win_rb;
-#define NUM_LINES(len) (1 + (len) / bot.cols)
static unsigned scroll_position;
-static int curses_active;
-static pid_t cmd_pid;
+static pid_t exec_pid;
-static int command_fds[2];
-static int stat_pipe = -1;
+static int exec_fds[2] = {-1, -1};
static struct gui_args_info conf;
+static int loglevel;
-enum {GETCH_MODE, COMMAND_MODE, EXTERNAL_MODE};
-
+/** Type of the process currently being executed. */
+enum exec_status {
+ EXEC_IDLE, /**< No process running. */
+ EXEC_DCMD, /**< para or display process running. */
+ EXEC_XCMD, /**< External process running. */
+};
-#define COLOR_STATUSBAR 52
-#define COLOR_COMMAND 53
-#define COLOR_OUTPUT 54
-#define COLOR_MSG 55
-#define COLOR_ERRMSG 56
-#define COLOR_WELCOME 57
-#define COLOR_SEPARATOR 58
-#define COLOR_TOP 59
-#define COLOR_BOT 60
+/**
+ * Codes for various colors.
+ *
+ * Each status item has its own color pair. The ones defined here start at a
+ * higher number so that they do not overlap with these.
+ */
+enum gui_color_pair {
+ COLOR_STATUSBAR = NUM_STAT_ITEMS + 1,
+ COLOR_COMMAND,
+ COLOR_OUTPUT,
+ COLOR_MSG,
+ COLOR_ERRMSG,
+ COLOR_SEPARATOR,
+ COLOR_TOP,
+ COLOR_BOT,
+};
struct gui_command {
const char *key;
void (*handler)(void);
};
-struct stat_item {
- char name[MAXLINE];
- char prefix[MAXLINE];
- char postfix[MAXLINE];
- unsigned y;
- unsigned x;
- unsigned len;
- int fg, bg;
- int align;
- char content[MAXLINE];
+static struct gui_theme theme;
+
+#define GUI_COMMANDS \
+ GUI_COMMAND(help, "?", "print help") \
+ GUI_COMMAND(enlarge_top_win, "+", "enlarge the top window") \
+ GUI_COMMAND(shrink_top_win, "-", "shrink the top window") \
+ GUI_COMMAND(reread_conf, "r", "reread configuration file") \
+ GUI_COMMAND(quit, "q", "exit para_gui") \
+ GUI_COMMAND(refresh, "^L", "redraw the screen") \
+ GUI_COMMAND(next_theme, ".", "switch to next theme") \
+ GUI_COMMAND(prev_theme, ",", "switch to previous theme") \
+ GUI_COMMAND(ll_incr, ">", "increase loglevel (decreases verbosity)") \
+ GUI_COMMAND(ll_decr, "<", "decrease loglevel (increases verbosity)") \
+ GUI_COMMAND(version, "V", "show the para_gui version") \
+ GUI_COMMAND(scroll_up, "<up>", "scroll up one line") \
+ GUI_COMMAND(scroll_down, "<down>", "scroll_down") \
+ GUI_COMMAND(page_up, "<ppage>", "scroll up one page") \
+ GUI_COMMAND(page_down, "<npage>", "scroll down one page") \
+ GUI_COMMAND(scroll_top, "<home>", "scroll to top of buffer") \
+ GUI_COMMAND(cancel_scroll, "<end>", "deactivate scroll mode") \
+
+/* declare command handlers */
+#define GUI_COMMAND(_c, _k, _d) \
+ static void com_ ## _c(void);
+GUI_COMMANDS
+
+#undef GUI_COMMAND
+
+/* define command array */
+#define GUI_COMMAND(_c, _k, _d) \
+ { \
+ .key = _k, \
+ .name = #_c, \
+ .description = _d, \
+ .handler = com_ ## _c \
+ },
+
+static struct gui_command command_list[] = {GUI_COMMANDS {.name = NULL}};
+
+struct input_task {
+ struct task *task;
};
-static struct gui_theme theme;
+struct status_task {
+ struct task *task;
+ pid_t pid;
+ char *buf;
+ int bufsize, loaded;
+ struct timeval next_exec;
+ int fd;
+};
-static int _argc;
-static char **_argv;
-
-static void com_help(void);
-static void com_reread_conf(void);
-static void com_enlarge_top_win(void);
-static void com_shrink_top_win(void);
-static void com_version(void);
-__noreturn static void com_quit(void);
-static void com_refresh(void);
-static void com_ll_incr(void);
-static void com_ll_decr(void);
-static void com_prev_theme(void);
-static void com_next_theme(void);
-static void com_scroll_up(void);
-static void com_scroll_down(void);
-static void com_page_up(void);
-static void com_page_down(void);
-static void com_cancel_scrolling(void);
-static void com_scroll_top(void);
-
-static struct gui_command command_list[] = {
- {
- .key = "?",
- .name = "help",
- .description = "print help",
- .handler = com_help
- }, {
- .key = "+",
- .name = "enlarge_win",
- .description = "enlarge the top window",
- .handler = com_enlarge_top_win
- }, {
- .key = "-",
- .name = "shrink_win",
- .description = "shrink the top window",
- .handler = com_shrink_top_win
- }, {
- .key = "r",
- .name = "reread_conf",
- .description = "reread configuration file",
- .handler = com_reread_conf
- }, {
- .key = "q",
- .name = "quit",
- .description = "exit para_gui",
- .handler = com_quit
- }, {
- .key = "^L",
- .name = "refresh",
- .description = "redraw the screen",
- .handler = com_refresh
- }, {
- .key = ".",
- .name = "next_theme",
- .description = "switch to next theme",
- .handler = com_next_theme
- }, {
- .key = ",",
- .name = "prev_theme",
- .description = "switch to previous stream",
- .handler = com_prev_theme
- }, {
- .key = ">",
- .name = "ll_incr",
- .description = "increase loglevel (decreases verbosity)",
- .handler = com_ll_incr
- }, {
- .key = "<",
- .name = "ll_decr",
- .description = "decrease loglevel (increases verbosity)",
- .handler = com_ll_decr
- }, {
- .key = "V",
- .name = "version",
- .description = "show the para_gui version",
- .handler = com_version
- }, {
- .key = "<up>",
- .name = "scroll_up",
- .description = "scroll up one line",
- .handler = com_scroll_up
- }, {
- .key = "<down>",
- .name = "scroll_down",
- .description = "scroll down one line",
- .handler = com_scroll_down
- }, {
- .key = "<ppage>",
- .name = "page_up",
- .description = "scroll up one page",
- .handler = com_page_up
- }, {
- .key = "<npage>",
- .name = "page_down",
- .description = "scroll down one page",
- .handler = com_page_down
- }, {
- .key = "<home>",
- .name = "scroll_top",
- .description = "scroll to top of buffer",
- .handler = com_scroll_top
- }, {
- .key = "<end>",
- .name = "cancel_scroll",
- .description = "deactivate scroll mode",
- .handler = com_cancel_scrolling
- }, {
- .handler = NULL
- }
+/** Stdout/stderr of the executing process is read in chunks of this size. */
+#define COMMAND_BUF_SIZE 32768
+
+struct exec_task {
+ struct task *task;
+ char command_buf[2][COMMAND_BUF_SIZE]; /* stdout/stderr of command */
+ int cbo[2]; /* command buf offsets */
+ unsigned flags[2]; /* passed to for_each_line() */
};
static int find_cmd_byname(char *name)
return -1;
}
+/*
+ * Even though ncurses provides getmaxx and getmaxy, these functions/macros are
+ * not described in the XSI Curses standard.
+ */
+static int get_num_lines(struct gui_window *w)
+{
+ int lines;
+ __a_unused int cols; /* avoid "set but not used" warnings */
+
+ getmaxyx(w->win, lines, cols);
+ return lines;
+}
+
+static int get_num_cols(struct gui_window *w)
+{
+ __a_unused int lines; /* avoid "set but not used" warnings */
+ int cols;
+
+ getmaxyx(w->win, lines, cols);
+ return cols;
+}
+
+/** Number of lines of the window are occupied by an output line. */
+#define NUM_LINES(len) (1 + (len) / get_num_cols(&bot))
+
+/* isendwin() returns false before initscr() was called */
+static bool curses_active(void)
+{
+ return top.win && !isendwin();
+}
+
/* taken from mutt */
static char *km_keyname(int c)
{
return buf;
}
-static char *configfile_exists(void)
-{
- static char *config_file;
- char *tmp;
-
- if (!conf.config_file_given) {
- if (!config_file) {
- char *home = para_homedir();
- config_file = make_message("%s/.paraslash/gui.conf",
- home);
- free(home);
- }
- tmp = config_file;
- } else
- tmp = conf.config_file_arg;
- return file_exists(tmp)? tmp: NULL;
-}
-
/* Print given number of spaces to curses window. */
static void add_spaces(WINDOW* win, unsigned int num)
{
return 1;
}
+static void refresh_window(struct gui_window *gw)
+{
+ gw->needs_update = true;
+}
+
+static bool window_update_needed(void)
+{
+ return top.needs_update || bot.needs_update || sb.needs_update ||
+ in.needs_update || sep.needs_update;
+}
+
__printf_2_3 static void print_in_bar(int color, const char *fmt,...)
{
char *msg;
va_list ap;
- if (!curses_active)
+ if (!curses_active())
return;
wattron(in.win, COLOR_PAIR(color));
va_start(ap, fmt);
xvasprintf(&msg, fmt, ap);
va_end(ap);
wmove(in.win, 0, 0);
- align_str(in.win, msg, sb.cols, LEFT);
+ align_str(in.win, msg, get_num_cols(&in), LEFT);
free(msg);
- wrefresh(in.win);
+ refresh_window(&in);
}
-/*
- * update the status bar
- */
static void print_status_bar(void)
{
char *tmp;
- if (!curses_active)
- return;
- tmp = para_strdup(STANDARD_STATUS_BAR);
+ tmp = para_strdup("para_gui " PACKAGE_VERSION " (hit ? for help)");
wmove(sb.win, 0, 0);
- align_str(sb.win, tmp, sb.cols, CENTER);
+ align_str(sb.win, tmp, get_num_cols(&sb), CENTER);
free(tmp);
- wrefresh(sb.win);
}
/*
* get the number of the oldest rbe that is (partially) visible. On return,
- * lines contains the sum of the number of lines of all visable entries. If the
+ * lines contains the sum of the number of lines of all visible entries. If the
* first one is only partially visible, lines is greater than bot.lines.
*/
static int first_visible_rbe(unsigned *lines)
{
- int i;
+ int i, bot_lines = get_num_lines(&bot);
+
*lines = 0;
for (i = scroll_position; i < RINGBUFFER_SIZE; i++) {
struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
int rbe_lines;
if (!rbe)
return i - 1;
-// fprintf(stderr, "found: %s\n", rbe->msg);
rbe_lines = NUM_LINES(rbe->len);
- if (rbe_lines > bot.lines)
+ if (rbe_lines > bot_lines)
return -1;
*lines += rbe_lines;
- if (*lines >= bot.lines)
+ if (*lines >= bot_lines)
return i;
}
return RINGBUFFER_SIZE - 1;
*/
static int draw_top_rbe(unsigned *lines)
{
- int ret, fvr = first_visible_rbe(lines);
+ int bot_cols, bot_lines, ret, fvr = first_visible_rbe(lines);
struct rb_entry *rbe;
size_t bytes_to_skip, cells_to_skip, width;
rbe = ringbuffer_get(bot_win_rb, fvr);
if (!rbe)
return -1;
- if (*lines > bot.lines) {
+ getmaxyx(bot.win, bot_lines, bot_cols);
+ if (*lines > bot_lines) {
/* rbe is partially visible multi-line */
- cells_to_skip = (*lines - bot.lines) * bot.cols;
+ cells_to_skip = (*lines - bot_lines) * bot_cols;
ret = skip_cells(rbe->msg, cells_to_skip, &bytes_to_skip);
if (ret < 0)
return ret;
static void redraw_bot_win(void)
{
unsigned lines;
- int i;
+ int i, bot_lines = get_num_lines(&bot);
wmove(bot.win, 0, 0);
wclear(bot.win);
i = draw_top_rbe(&lines);
if (i <= 0)
goto out;
- while (i > 0 && lines < bot.lines) {
+ while (i > 0 && lines < bot_lines) {
struct rb_entry *rbe = ringbuffer_get(bot_win_rb, --i);
if (!rbe) {
lines++;
waddstr(bot.win, rbe->msg);
}
out:
- wrefresh(bot.win);
+ refresh_window(&bot);
}
static void rb_add_entry(int color, char *msg)
new->len = len;
new->msg = msg;
old = ringbuffer_add(bot_win_rb, new);
-// fprintf(stderr, "added: %s\n", new->msg);
if (old) {
free(old->msg);
free(old);
char *msg;
va_list ap;
- if (!curses_active)
+ if (!curses_active())
return;
va_start(ap, fmt);
xvasprintf(&msg, fmt, ap);
va_end(ap);
rb_add_entry(color, msg);
- wrefresh(bot.win);
+ refresh_window(&bot);
}
static int add_output_line(char *line, void *data)
{
int color = *(int *)data? COLOR_ERRMSG : COLOR_OUTPUT;
- if (!curses_active)
+
+ if (!curses_active())
return 1;
rb_add_entry(color, para_strdup(line));
return 1;
}
-static int loglevel;
-
static __printf_2_3 void curses_log(int ll, const char *fmt,...)
{
- int color;
- char *msg;
va_list ap;
- if (ll < loglevel || !curses_active)
+ if (ll < loglevel)
return;
- switch (ll) {
- case LL_DEBUG:
- case LL_INFO:
- case LL_NOTICE:
- color = COLOR_MSG;
- break;
- default:
- color = COLOR_ERRMSG;
- }
va_start(ap, fmt);
- xvasprintf(&msg, fmt, ap);
+ if (curses_active()) {
+ int color = ll <= LL_NOTICE? COLOR_MSG : COLOR_ERRMSG;
+ char *msg;
+ unsigned bytes = xvasprintf(&msg, fmt, ap);
+ if (bytes > 0 && msg[bytes - 1] == '\n')
+ msg[bytes - 1] = '\0'; /* cut trailing newline */
+ rb_add_entry(color, msg);
+ refresh_window(&bot);
+ } else if (exec_pid <= 0) /* no external command running */
+ vfprintf(stderr, fmt, ap);
va_end(ap);
- chop(msg);
- rb_add_entry(color, msg);
- wrefresh(bot.win);
}
+/** The log function of para_gui, always set to curses_log(). */
__printf_2_3 void (*para_log)(int, const char*, ...) = curses_log;
-static void setup_signal_handling(void)
-{
- signal_pipe = para_signal_init();
- para_install_sighandler(SIGINT);
- para_install_sighandler(SIGTERM);
- para_install_sighandler(SIGCHLD);
- para_install_sighandler(SIGWINCH);
- para_install_sighandler(SIGUSR1);
-}
-
-/* kill every process in the process group and exit */
-__noreturn static void kill_pg_and_die(int ret)
-{
- para_sigaction(SIGTERM, SIG_IGN);
- kill(0, SIGTERM);
- exit(ret);
-}
-
static void shutdown_curses(void)
{
- if (!curses_active)
- return;
def_prog_mode();
- curses_active = 0;
endwin();
}
-__noreturn static void finish(int ret)
-{
- shutdown_curses();
- kill_pg_and_die(ret);
-}
-
-/*
- * exit curses and print given message to stdout/stderr
- */
-__noreturn __printf_2_3 static void msg_n_exit(int ret, const char* fmt, ...)
+/* disable curses, print a message, kill running processes and exit */
+__noreturn __printf_2_3 static void die(int exit_code, const char* fmt, ...)
{
va_list argp;
- FILE *outfd = ret? stderr: stdout;
shutdown_curses();
va_start(argp, fmt);
- vfprintf(outfd, fmt, argp);
+ vfprintf(stderr, fmt, argp);
va_end(argp);
- kill_pg_and_die(ret);
-}
-
-static void print_welcome(void)
-{
- if (loglevel > LL_NOTICE)
- return;
- outputf(COLOR_WELCOME, "Welcome to %s. Theme: %s",
- version_single_line("gui"), theme.name);
- wclrtoeol(bot.win);
-}
-
-/*
- * init all windows
- */
-static void init_wins(int top_lines)
-{
- int i;
-
- top.lines = top_lines;
- top.cols = COLS;
- top.begy = 0;
- top.begx = 0;
-
- bot.lines = LINES - top.lines - 3;
- bot.cols = COLS;
- bot.begy = top.lines + 1;
- bot.begx = 0;
-
- sb.lines = 1;
- sb.cols = COLS;
- sb.begy = LINES - 2;
- sb.begx = 0;
-
- in.lines = 1;
- in.cols = COLS;
- in.begy = LINES - 1;
- in.begx = 0;
-
- sep.lines = 1;
- sep.cols = COLS;
- sep.begy = top.lines;
- sep.begx = 0;
-
- assume_default_colors(theme.default_fg, theme.default_bg);
- if (top.win) {
- mvwin(top.win, top.begy, top.begx);
- wresize(top.win, top.lines, top.cols);
-
- mvwin(sb.win, sb.begy, sb.begx);
- wresize(sb.win, sb.lines, sb.cols);
-
- mvwin(sep.win, sep.begy, sep.begx);
- wresize(sep.win, sep.lines, sep.cols);
-
- mvwin(bot.win, bot.begy, bot.begx);
- wresize(bot.win, bot.lines, bot.cols);
-
- mvwin(in.win, in.begy, in.begx);
- wresize(in.win, in.lines, in.cols);
- } else {
- sep.win = newwin(sep.lines, sep.cols, sep.begy, sep.begx);
- top.win = newwin(top.lines, top.cols, top.begy, top.begx);
- bot.win = newwin(bot.lines, bot.cols, bot.begy, bot.begx);
- sb.win = newwin(sb.lines, sb.cols, sb.begy, sb.begx);
- in.win = newwin(in.lines, in.cols, in.begy, in.begx);
- if (!top.win || !bot.win || !sb.win || !in.win || !sep.win)
- msg_n_exit(1, "Error: Cannot create curses windows\n");
- wclear(bot.win);
- wclear(sb.win);
- wclear(in.win);
- scrollok(bot.win, 1);
- wattron(sb.win, COLOR_PAIR(COLOR_STATUSBAR));
- wattron(sep.win, COLOR_PAIR(COLOR_SEPARATOR));
- wattron(bot.win, COLOR_PAIR(COLOR_BOT));
- wattron(top.win, COLOR_PAIR(COLOR_TOP));
- nodelay(top.win, 1);
- nodelay(bot.win, 1);
- nodelay(sb.win, 1);
- nodelay(in.win, 0);
-
- keypad(top.win, 1);
- keypad(bot.win, 1);
- keypad(sb.win, 1);
- keypad(in.win, 1);
- print_status_bar();
- }
- wmove(sep.win, 0, 0);
- for (i = 1; i <= COLS; i++)
- waddstr(sep.win, theme.sep_str);
- wclear(top.win);
- //wclear(bot.win);
- wnoutrefresh(top.win);
- wnoutrefresh(bot.win);
- //wnoutrefresh(sb.win);
- print_status_bar();
- wnoutrefresh(in.win);
- wnoutrefresh(sep.win);
- doupdate();
+ /* kill every process in the process group and exit */
+ para_sigaction(SIGTERM, SIG_IGN);
+ kill(0, SIGTERM);
+ exit(exit_code);
}
/*
char *tmp;
struct stat_item_data d = theme.data[i];
char *c = stat_content[i];
+ int top_lines = get_num_lines(&top);
- if (!curses_active || !d.len || !c)
+ if (!curses_active() || !d.len || !c)
return;
tmp = make_message("%s%s%s", d.prefix, c, d.postfix);
- wmove(top.win, d.y * top.lines / 100, d.x * COLS / 100);
- wrefresh(top.win);
+ wmove(top.win, d.y * top_lines / 100, d.x * COLS / 100);
wattron(top.win, COLOR_PAIR(i + 1));
align_str(top.win, tmp, d.len * COLS / 100, d.align);
free(tmp);
- wrefresh(top.win);
+ refresh_window(&top);
}
static int update_item(int item_num, char *buf)
return 1;
}
-static int read_stat_pipe(fd_set *rfds)
-{
- static char *buf;
- static int bufsize, loaded;
- int ret, ret2;
- size_t sz;
-
- if (stat_pipe < 0)
- return 0;
- if (loaded >= bufsize) {
- if (bufsize > 1000 * 1000) {
- loaded = 0;
- return 0;
- }
- bufsize += bufsize + 1000;
- buf = para_realloc(buf, bufsize);
- }
- assert(loaded < bufsize);
- ret = read_nonblock(stat_pipe, buf + loaded, bufsize - loaded,
- rfds, &sz);
- loaded += sz;
- ret2 = for_each_stat_item(buf, loaded, update_item);
- if (ret < 0 || ret2 < 0) {
- loaded = 0;
- return ret2 < 0? ret2 : ret;
- }
- sz = ret2; /* what is left */
- if (sz > 0 && sz < loaded)
- memmove(buf, buf + loaded - sz, sz);
- loaded = sz;
- return 1;
-}
-
static void print_all_items(void)
{
int i;
- if (!curses_active)
+ if (!curses_active())
return;
FOR_EACH_STATUS_ITEM(i)
print_stat_item(i);
}
}
+static void status_pre_select(struct sched *s, void *context)
+{
+ struct status_task *st = context;
+
+ if (st->fd >= 0)
+ para_fd_set(st->fd, &s->rfds, &s->max_fileno);
+ if (task_get_notification(st->task) < 0)
+ return sched_min_delay(s);
+ if (st->fd < 0)
+ sched_request_barrier_or_min_delay(&st->next_exec, s);
+}
+
+static int status_post_select(struct sched *s, void *context)
+{
+ struct status_task *st = context;
+ size_t sz;
+ int ret, ret2;
+
+ ret = task_get_notification(st->task);
+ if (ret == -E_GUI_SIGCHLD && st->pid > 0) {
+ int exit_status;
+ if (waitpid(st->pid, &exit_status, WNOHANG) == st->pid) {
+ st->pid = 0;
+ PARA_ERROR_LOG("stat command exit status: %d",
+ exit_status);
+ }
+ }
+ if (st->fd < 0) {
+ int fds[3] = {0, 1, 0};
+ if (st->pid > 0)
+ return 0;
+ /* Avoid busy loop */
+ if (tv_diff(&st->next_exec, now, NULL) > 0)
+ return 0;
+ st->next_exec.tv_sec = now->tv_sec + 2;
+ ret = para_exec_cmdline_pid(&st->pid, conf.stat_cmd_arg, fds);
+ if (ret < 0)
+ return 0;
+ ret = mark_fd_nonblocking(fds[1]);
+ if (ret < 0) {
+ close(fds[1]);
+ return 0;
+ }
+ st->fd = fds[1];
+ return 0;
+ }
+
+ if (st->loaded >= st->bufsize) {
+ if (st->bufsize > 1000 * 1000) {
+ st->loaded = 0;
+ return 0;
+ }
+ st->bufsize += st->bufsize + 1000;
+ st->buf = para_realloc(st->buf, st->bufsize);
+ }
+ assert(st->loaded < st->bufsize);
+ ret = read_nonblock(st->fd, st->buf + st->loaded,
+ st->bufsize - st->loaded, &s->rfds, &sz);
+ st->loaded += sz;
+ ret2 = for_each_stat_item(st->buf, st->loaded, update_item);
+ if (ret < 0 || ret2 < 0) {
+ st->loaded = 0;
+ PARA_NOTICE_LOG("closing stat pipe: %s\n", para_strerror(-ret));
+ close(st->fd);
+ st->fd = -1;
+ clear_all_items();
+ free(stat_content[SI_BASENAME]);
+ stat_content[SI_BASENAME] =
+ para_strdup("stat command terminated!?");
+ print_all_items();
+ return 0;
+ }
+ sz = ret2; /* what is left */
+ if (sz > 0 && sz < st->loaded)
+ memmove(st->buf, st->buf + st->loaded - sz, sz);
+ st->loaded = sz;
+ return 0;
+}
+
+/*
+ * init all windows
+ */
+static void init_wins(int top_lines)
+{
+ int top_y = 0, bot_y = top_lines + 1, sb_y = LINES - 2,
+ in_y = LINES - 1, sep_y = top_lines;
+ int bot_lines = LINES - top_lines - 3, sb_lines = 1, in_lines = 1,
+ sep_lines = 1;
+
+ assume_default_colors(theme.dflt.fg, theme.dflt.bg);
+ if (top.win) {
+ wresize(top.win, top_lines, COLS);
+ mvwin(top.win, top_y, 0);
+
+ wresize(sb.win, sb_lines, COLS);
+ mvwin(sb.win, sb_y, 0);
+
+ wresize(sep.win, sep_lines, COLS);
+ mvwin(sep.win, sep_y, 0);
+
+ wresize(bot.win, bot_lines, COLS);
+ mvwin(bot.win, bot_y, 0);
+
+ wresize(in.win, in_lines, COLS);
+ mvwin(in.win, in_y, 0);
+ } else {
+ sep.win = newwin(sep_lines, COLS, sep_y, 0);
+ top.win = newwin(top_lines, COLS, top_y, 0);
+ bot.win = newwin(bot_lines, COLS, bot_y, 0);
+ sb.win = newwin(sb_lines, COLS, sb_y, 0);
+ in.win = newwin(in_lines, COLS, in_y, 0);
+ if (!top.win || !bot.win || !sb.win || !in.win || !sep.win)
+ die(EXIT_FAILURE, "Error: Cannot create curses windows\n");
+ wclear(bot.win);
+ wclear(sb.win);
+ wclear(in.win);
+ scrollok(bot.win, 1);
+ wattron(sb.win, COLOR_PAIR(COLOR_STATUSBAR));
+ wattron(sep.win, COLOR_PAIR(COLOR_SEPARATOR));
+ wattron(bot.win, COLOR_PAIR(COLOR_BOT));
+ wattron(top.win, COLOR_PAIR(COLOR_TOP));
+ nodelay(top.win, 1);
+ nodelay(bot.win, 1);
+ nodelay(sb.win, 1);
+ nodelay(in.win, 0);
+
+ keypad(top.win, 1);
+ keypad(bot.win, 1);
+ keypad(sb.win, 1);
+ keypad(in.win, 1);
+ }
+ wmove(sep.win, 0, 0);
+ whline(sep.win, theme.sep_char, COLS);
+ wclear(top.win);
+ print_all_items();
+ //wclear(bot.win);
+ wnoutrefresh(top.win);
+ wnoutrefresh(bot.win);
+ print_status_bar();
+ wnoutrefresh(sb.win);
+ wnoutrefresh(in.win);
+ wnoutrefresh(sep.win);
+ doupdate();
+}
+
static void init_pair_or_die(short pair, short f, short b)
{
if (init_pair(pair, f, b) == ERR)
- msg_n_exit(EXIT_FAILURE, "fatal: init_pair() failed\n");
+ die(EXIT_FAILURE, "fatal: init_pair() failed\n");
}
static void init_colors_or_die(void)
int i;
if (!has_colors())
- msg_n_exit(EXIT_FAILURE, "fatal: No color term\n");
+ die(EXIT_FAILURE, "fatal: No color term\n");
if (start_color() == ERR)
- msg_n_exit(EXIT_FAILURE, "fatal: failed to start colors\n");
+ die(EXIT_FAILURE, "fatal: failed to start colors\n");
FOR_EACH_STATUS_ITEM(i)
if (theme.data[i].len)
- init_pair_or_die(i + 1, theme.data[i].fg,
- theme.data[i].bg);
- init_pair_or_die(COLOR_STATUSBAR, theme.sb_fg, theme.sb_bg);
- init_pair_or_die(COLOR_COMMAND, theme.cmd_fg, theme.cmd_bg);
- init_pair_or_die(COLOR_OUTPUT, theme.output_fg, theme.output_bg);
- init_pair_or_die(COLOR_MSG, theme.msg_fg, theme.msg_bg);
- init_pair_or_die(COLOR_ERRMSG, theme.err_msg_fg, theme.err_msg_bg);
- init_pair_or_die(COLOR_WELCOME, theme.welcome_fg, theme.welcome_bg);
- init_pair_or_die(COLOR_SEPARATOR, theme.sep_fg, theme.sep_bg);
- init_pair_or_die(COLOR_TOP, theme.default_fg, theme.default_bg);
- init_pair_or_die(COLOR_BOT, theme.default_fg, theme.default_bg);
+ init_pair_or_die(i + 1, theme.data[i].color.fg,
+ theme.data[i].color.bg);
+ init_pair_or_die(COLOR_STATUSBAR, theme.sb.fg, theme.sb.bg);
+ init_pair_or_die(COLOR_COMMAND, theme.cmd.fg, theme.cmd.bg);
+ init_pair_or_die(COLOR_OUTPUT, theme.output.fg, theme.output.bg);
+ init_pair_or_die(COLOR_MSG, theme.msg.fg, theme.msg.bg);
+ init_pair_or_die(COLOR_ERRMSG, theme.err_msg.fg, theme.err_msg.bg);
+ init_pair_or_die(COLOR_SEPARATOR, theme.sep.fg, theme.sep.bg);
+ init_pair_or_die(COLOR_TOP, theme.dflt.fg, theme.dflt.bg);
+ init_pair_or_die(COLOR_BOT, theme.dflt.fg, theme.dflt.bg);
}
/* (Re-)initialize the curses library. */
static void init_curses(void)
{
- curses_active = 1;
- if (top.win && refresh() == ERR) /* refesh is really needed */
- msg_n_exit(EXIT_FAILURE, "refresh() failed\n");
+ if (curses_active())
+ return;
+ if (top.win && refresh() == ERR) /* refresh is really needed */
+ die(EXIT_FAILURE, "refresh() failed\n");
if (LINES < theme.lines_min || COLS < theme.cols_min)
- msg_n_exit(EXIT_FAILURE, "Error: Terminal (%dx%d) too small"
+ die(EXIT_FAILURE, "Terminal (%dx%d) too small"
" (need at least %dx%d)\n", COLS, LINES,
theme.cols_min, theme.lines_min);
curs_set(0); /* make cursor invisible, ignore errors */
nonl(); /* do not NL->CR/NL on output, always returns OK */
/* don't echo input */
if (noecho() == ERR)
- msg_n_exit(EXIT_FAILURE, "fatal: noecho() failed\n");
+ die(EXIT_FAILURE, "fatal: noecho() failed\n");
/* take input chars one at a time, no wait for \n */
if (cbreak() == ERR)
- msg_n_exit(EXIT_FAILURE, "fatal: cbreak() failed\n");
+ die(EXIT_FAILURE, "fatal: cbreak() failed\n");
init_colors_or_die();
clear(); /* ignore non-fatal errors */
init_wins(theme.top_lines_default);
- print_all_items();
// noecho(); /* don't echo input */
}
-static void check_sigchld(void)
-{
- int ret;
- pid_t pid;
-reap_next_child:
- ret = para_reap_child(&pid);
- if (ret <= 0)
- return;
- if (pid == cmd_pid)
- cmd_pid = 0;
- goto reap_next_child;
-}
-
/*
* This sucker modifies its first argument. *handler and *arg are
* pointers to 0-terminated strings (inside line). Crap.
return 0;
}
-static int check_key_map_args(void)
+static void check_key_map_args_or_die(void)
{
- char *s;
- int i, ret = -1;
- char *tmp = NULL, *handler, *arg;
+ int i;
+ char *tmp = NULL;
for (i = 0; i < conf.key_map_given; ++i) {
- s = conf.key_map_arg[i];
- if (!(*s))
- goto err_out;
+ char *handler, *arg;
+
free(tmp);
- tmp = para_strdup(s);
+ tmp = para_strdup(conf.key_map_arg[i]);
if (!split_key_map(tmp, &handler, &arg))
- goto err_out;
+ break;
if (strlen(handler) != 1)
- goto err_out;
- if (*handler != 'x'
- && *handler != 'd'
- && *handler != 'i'
- && *handler != 'p')
- goto err_out;
+ break;
+ if (*handler != 'x' && *handler != 'd' && *handler != 'i'
+ && *handler != 'p')
+ break;
if (*handler != 'i')
continue;
if (find_cmd_byname(arg) < 0)
- goto err_out;
+ break;
}
- ret = 0;
-err_out:
+ if (i != conf.key_map_given)
+ die(EXIT_FAILURE, "invalid key map: %s\n", conf.key_map_arg[i]);
free(tmp);
- return ret;
+}
+
+static void parse_config_file_or_die(bool override)
+{
+ bool err;
+ char *config_file;
+ struct gui_cmdline_parser_params params = {
+ .override = override,
+ .initialize = 0,
+ .check_required = !override,
+ .check_ambiguity = 0,
+ .print_errors = 1,
+ };
+
+ if (conf.config_file_given)
+ config_file = para_strdup(conf.config_file_arg);
+ else {
+ char *home = para_homedir();
+ config_file = make_message("%s/.paraslash/gui.conf", home);
+ free(home);
+ }
+ if (!file_exists(config_file)) {
+ if (!conf.config_file_given)
+ err = false;
+ else {
+ PARA_EMERG_LOG("config file %s does not exist\n",
+ config_file);
+ err = true;
+ }
+ goto out;
+ }
+ gui_cmdline_parser_config_file(config_file, &conf, ¶ms);
+ loglevel = get_loglevel_by_name(conf.loglevel_arg);
+ check_key_map_args_or_die();
+ err = false;
+out:
+ free(config_file);
+ if (err)
+ exit(EXIT_FAILURE);
+ theme_init(conf.theme_arg, &theme);
+}
+
+/* reread configuration, terminate on errors */
+static void reread_conf(void)
+{
+ /*
+ * gengetopt might print to stderr and exit on errors. So we have to
+ * shutdown curses first.
+ */
+ shutdown_curses();
+ parse_config_file_or_die(true /* override */);
+ init_curses();
+ print_in_bar(COLOR_MSG, "config file reloaded\n");
}
/*
* React to various signal-related events
*/
-static void handle_signal(int sig)
+static int signal_post_select(struct sched *s, __a_unused void *context)
{
- switch (sig) {
+ int ret = para_next_signal(&s->rfds);
+
+ if (ret <= 0)
+ return 0;
+ switch (ret) {
case SIGTERM:
- msg_n_exit(EXIT_FAILURE,
- "only the good die young (caught SIGTERM))\n");
- return;
- case SIGWINCH:
- if (curses_active) {
- shutdown_curses();
- init_curses();
- redraw_bot_win();
- }
- return;
+ die(EXIT_FAILURE, "only the good die young (caught SIGTERM)\n");
+ return 1;
case SIGINT:
- PARA_WARNING_LOG("caught SIGINT, reset");
+ PARA_WARNING_LOG("caught SIGINT, reset\n");
/* Nothing to do. SIGINT killed our child which gets noticed
* by do_select and resets everything.
*/
- return;
+ return 1;
case SIGUSR1:
- PARA_NOTICE_LOG("got SIGUSR1, rereading configuration");
- com_reread_conf();
- return;
+ PARA_NOTICE_LOG("got SIGUSR1, rereading configuration\n");
+ reread_conf();
+ return 1;
case SIGCHLD:
- check_sigchld();
- return;
+ task_notify_all(s, E_GUI_SIGCHLD);
+ return 1;
}
+ return 1;
}
-static void status_pre_select(fd_set *rfds, int *max_fileno, struct timeval *tv)
+static enum exec_status exec_status(void)
{
- static struct timeval next_exec, atm, diff;
- int ret, fds[3] = {0, 1, 0};
- pid_t pid;
-
- if (stat_pipe >= 0)
- goto success;
- /* Avoid busy loop */
- gettimeofday(&atm, NULL);
- if (tv_diff(&next_exec, &atm, &diff) > 0) {
- if (tv_diff(&diff, tv, NULL) < 0)
- *tv = diff;
- return;
- }
- next_exec.tv_sec = atm.tv_sec + 2;
- ret = para_exec_cmdline_pid(&pid, conf.stat_cmd_arg, fds);
- if (ret < 0)
- return;
- ret = mark_fd_nonblocking(fds[1]);
- if (ret < 0) {
- close(fds[1]);
- return;
- }
- stat_pipe = fds[1];
-success:
- para_fd_set(stat_pipe, rfds, max_fileno);
+ if (exec_fds[0] >= 0 || exec_fds[1] >= 0)
+ return EXEC_DCMD;
+ if (exec_pid > 0)
+ return EXEC_XCMD;
+ return EXEC_IDLE;
}
-#define COMMAND_BUF_SIZE 32768
+static void exec_pre_select(struct sched *s, void *context)
+{
+ struct exec_task *et = context;
+ if (exec_fds[0] >= 0)
+ para_fd_set(exec_fds[0], &s->rfds, &s->max_fileno);
+ if (exec_fds[1] >= 0)
+ para_fd_set(exec_fds[1], &s->rfds, &s->max_fileno);
+ if (task_get_notification(et->task) < 0)
+ sched_min_delay(s);
+}
-/*
- * This is the core select loop. Besides the (internal) signal
- * pipe, the following other fds are checked according to the mode:
- *
- * GETCH_MODE: check stdin, return when key is pressed
- *
- * COMMAND_MODE: check command fds and stdin. Return when peer has closed both
- * stdout and stderr or when any key is pressed.
- *
- * EXTERNAL_MODE: Check only signal pipe. Used when an external command
- * is running. During that time curses is disabled. Returns when
- * cmd_pid == 0.
- */
-static int do_select(int mode)
-{
- fd_set rfds;
- int ret, i, max_fileno;
- char command_buf[2][COMMAND_BUF_SIZE] = {"", ""};
- int cbo[2] = {0, 0}; /* command buf offsets */
- struct timeval tv;
- unsigned flags[2] = {0, 0}; /* for for_each_line() */
-
-repeat:
- tv.tv_sec = conf.timeout_arg / 1000;
- tv.tv_usec = (conf.timeout_arg % 1000) * 1000;
-// ret = refresh_status();
- FD_ZERO(&rfds);
- max_fileno = 0;
- status_pre_select(&rfds, &max_fileno, &tv);
- /* signal pipe */
- para_fd_set(signal_pipe, &rfds, &max_fileno);
- /* command pipe only for COMMAND_MODE */
- if (mode == COMMAND_MODE) {
- if (command_fds[0] >= 0)
- para_fd_set(command_fds[0], &rfds, &max_fileno);
- if (command_fds[1] >= 0)
- para_fd_set(command_fds[1], &rfds, &max_fileno);
+static int exec_post_select(struct sched *s, void *context)
+{
+ struct exec_task *ct = context;
+ int i, ret;
+
+ ret = task_get_notification(ct->task);
+ if (ret == -E_GUI_SIGCHLD && exec_pid > 0) {
+ int exit_status;
+ if (waitpid(exec_pid, &exit_status, WNOHANG) == exec_pid) {
+ exec_pid = 0;
+ init_curses();
+ PARA_INFO_LOG("command exit status: %d", exit_status);
+ print_in_bar(COLOR_MSG, " ");
+ }
}
- if (mode == GETCH_MODE || mode == COMMAND_MODE)
- para_fd_set(STDIN_FILENO, &rfds, &max_fileno);
- ret = para_select(max_fileno + 1, &rfds, NULL, &tv);
- if (ret <= 0)
- goto check_return; /* skip fd checks */
- /* signals */
- ret = para_next_signal(&rfds);
- if (ret > 0)
- handle_signal(ret);
- /* read command pipe if ready */
- if (mode == COMMAND_MODE) {
- for (i = 0; i < 2; i++) {
- size_t sz;
- if (command_fds[i] < 0)
- continue;
- ret = read_nonblock(command_fds[i],
- command_buf[i] + cbo[i],
- COMMAND_BUF_SIZE - 1 - cbo[i], &rfds, &sz);
- cbo[i] += sz;
- sz = cbo[i];
- cbo[i] = for_each_line(flags[i], command_buf[i], cbo[i],
- add_output_line, &i);
- if (sz != cbo[i]) { /* at least one line found */
- wrefresh(bot.win);
- flags[i] = 0;
- }
- if (ret < 0) {
+ for (i = 0; i < 2; i++) {
+ size_t sz;
+ if (exec_fds[i] < 0)
+ continue;
+ ret = read_nonblock(exec_fds[i],
+ ct->command_buf[i] + ct->cbo[i],
+ COMMAND_BUF_SIZE - 1 - ct->cbo[i], &s->rfds, &sz);
+ ct->cbo[i] += sz;
+ sz = ct->cbo[i];
+ ct->cbo[i] = for_each_line(ct->flags[i], ct->command_buf[i],
+ ct->cbo[i], add_output_line, &i);
+ if (sz != ct->cbo[i]) { /* at least one line found */
+ refresh_window(&bot);
+ ct->flags[i] = 0;
+ }
+ if (ret < 0 || exec_pid == 0) {
+ if (ret < 0)
PARA_NOTICE_LOG("closing command fd %d: %s",
i, para_strerror(-ret));
- close(command_fds[i]);
- command_fds[i] = -1;
- flags[i] = 0;
- if (command_fds[!i] < 0) /* both fds closed */
- return 0;
- }
- if (cbo[i] == COMMAND_BUF_SIZE - 1) {
- PARA_NOTICE_LOG("discarding overlong line");
- cbo[i] = 0;
- flags[i] = FELF_DISCARD_FIRST;
- }
+ close(exec_fds[i]);
+ exec_fds[i] = -1;
+ ct->flags[i] = 0;
+ ct->cbo[i] = 0;
+ if (exec_fds[!i] < 0) /* both fds closed */
+ return 1;
}
- }
- ret = read_stat_pipe(&rfds);
- if (ret < 0) {
- PARA_NOTICE_LOG("closing stat pipe: %s\n", para_strerror(-ret));
- close(stat_pipe);
- stat_pipe = -1;
- clear_all_items();
- free(stat_content[SI_BASENAME]);
- stat_content[SI_BASENAME] =
- para_strdup("stat command terminated!?");
- print_all_items();
- }
-check_return:
- switch (mode) {
- case COMMAND_MODE:
- ret = wgetch(top.win);
- if (ret != ERR && ret != KEY_RESIZE) {
- if (command_fds[0] >= 0) {
- close(command_fds[0]);
- command_fds[0] = -1;
- }
- if (command_fds[1] >= 0) {
- close(command_fds[1]);
- command_fds[1] = -1;
- }
- if (cmd_pid)
- kill(cmd_pid, SIGTERM);
- return -1;
+ if (ct->cbo[i] == COMMAND_BUF_SIZE - 1) {
+ PARA_NOTICE_LOG("discarding overlong line");
+ ct->cbo[i] = 0;
+ ct->flags[i] = FELF_DISCARD_FIRST;
}
- break;
- case GETCH_MODE:
- ret = wgetch(top.win);
- if (ret != ERR && ret != KEY_RESIZE)
- return ret;
- break;
- case EXTERNAL_MODE:
- if (cmd_pid == 0)
- return 0;
}
- goto repeat;
+ return 0;
}
-/*
- * read from command pipe and print data to bot window
- */
-static void send_output(void)
+static void input_pre_select(struct sched *s, __a_unused void *context)
{
- int ret;
+ if (exec_status() != EXEC_XCMD)
+ para_fd_set(STDIN_FILENO, &s->rfds, &s->max_fileno);
+ if (window_update_needed())
+ sched_min_delay(s);
+}
+
+/* read from command pipe and print data to bot window */
+static void exec_and_display(const char *file_and_args)
+{
+ int ret, fds[3] = {0, 1, 1};
- ret = mark_fd_nonblocking(command_fds[0]);
+ outputf(COLOR_COMMAND, "%s", file_and_args);
+ ret = para_exec_cmdline_pid(&exec_pid, file_and_args, fds);
+ if (ret < 0)
+ return;
+ ret = mark_fd_nonblocking(fds[1]);
if (ret < 0)
goto fail;
- ret = mark_fd_nonblocking(command_fds[1]);
+ ret = mark_fd_nonblocking(fds[2]);
if (ret < 0)
goto fail;
- if (do_select(COMMAND_MODE) >= 0)
- PARA_INFO_LOG("command complete");
- else
- PARA_NOTICE_LOG("command aborted");
- print_in_bar(COLOR_MSG, " ");
+ exec_fds[0] = fds[1];
+ exec_fds[1] = fds[2];
+ print_in_bar(COLOR_MSG, "hit any key to abort\n");
return;
fail:
PARA_ERROR_LOG("%s\n", para_strerror(-ret));
- close(command_fds[0]);
- close(command_fds[1]);
+ close(exec_fds[0]);
+ close(exec_fds[1]);
}
-static void para_cmd(char *cmd)
+static void exec_para(const char *args)
{
- int ret, fds[3] = {0, 1, 1};
- char *c = make_message(BINDIR "/para_client -- %s", cmd);
+ char *file_and_args;
- outputf(COLOR_COMMAND, "%s", c);
- print_in_bar(COLOR_MSG, "executing client command, hit any key to abort\n");
- ret = para_exec_cmdline_pid(&cmd_pid, c, fds);
- free(c);
- if (ret < 0)
- return;
- command_fds[0] = fds[1];
- command_fds[1] = fds[2];
- send_output();
+ file_and_args = make_message(BINDIR "/para_client -- %s", args);
+ exec_and_display(file_and_args);
+ free(file_and_args);
}
/*
- * exec command and print output to bot win
+ * shutdown curses and stat pipe before executing external commands
*/
-static void display_cmd(char *cmd)
+static void exec_external(char *file_and_args)
{
- int fds[3] = {0, 1, 1};
+ int fds[3] = {-1, -1, -1};
- print_in_bar(COLOR_MSG, "executing display command, hit any key to abort");
- outputf(COLOR_COMMAND, "%s", cmd);
- if (para_exec_cmdline_pid(&cmd_pid, cmd, fds) < 0)
+ if (exec_pid)
return;
- command_fds[0] = fds[1];
- command_fds[1] = fds[2];
- send_output();
+ shutdown_curses();
+ para_exec_cmdline_pid(&exec_pid, file_and_args, fds);
}
-/*
- * shutdown curses and stat pipe before executing external commands
- */
-static void external_cmd(char *cmd)
+static void handle_command(int c)
{
- int fds[3] = {-1, -1, -1};
+ int i;
- if (cmd_pid)
- return;
- shutdown_curses();
- if (para_exec_cmdline_pid(&cmd_pid, cmd, fds) < 0)
+ /* first check user-defined key bindings */
+ for (i = 0; i < conf.key_map_given; ++i) {
+ char *tmp, *handler, *arg;
+
+ tmp = para_strdup(conf.key_map_arg[i]);
+ if (!split_key_map(tmp, &handler, &arg)) {
+ free(tmp);
+ return;
+ }
+ if (strcmp(tmp, km_keyname(c))) {
+ free(tmp);
+ continue;
+ }
+ if (*handler == 'd')
+ exec_and_display(arg);
+ else if (*handler == 'x')
+ exec_external(arg);
+ else if (*handler == 'p')
+ exec_para(arg);
+ else if (*handler == 'i') {
+ int num = find_cmd_byname(arg);
+ if (num >= 0)
+ command_list[num].handler();
+ }
+ free(tmp);
return;
- do_select(EXTERNAL_MODE);
- init_curses();
+ }
+ /* not found, check internal key bindings */
+ for (i = 0; command_list[i].handler; i++) {
+ if (!strcmp(km_keyname(c), command_list[i].key)) {
+ command_list[i].handler();
+ return;
+ }
+ }
+ print_in_bar(COLOR_ERRMSG, "key '%s' is not bound, press ? for help",
+ km_keyname(c));
+}
+
+static int input_post_select(__a_unused struct sched *s, __a_unused void *context)
+{
+ int ret;
+ enum exec_status exs = exec_status();
+
+ if (exs == EXEC_XCMD)
+ return 0;
+ if (window_update_needed()) {
+ if (top.needs_update)
+ assert(wnoutrefresh(top.win) == OK);
+ if (bot.needs_update)
+ assert(wnoutrefresh(bot.win) == OK);
+ if (sep.needs_update)
+ assert(wnoutrefresh(sep.win) == OK);
+ if (sb.needs_update)
+ assert(wnoutrefresh(sb.win) == OK);
+ if (in.needs_update)
+ assert(wnoutrefresh(in.win) == OK);
+ doupdate();
+ top.needs_update = bot.needs_update = sb.needs_update =
+ in.needs_update = sep.needs_update = false;
+ }
+ ret = wgetch(top.win);
+ if (ret == ERR)
+ return 0;
+ if (ret == KEY_RESIZE) {
+ if (curses_active()) {
+ shutdown_curses();
+ init_curses();
+ redraw_bot_win();
+ }
+ return 0;
+ }
+ if (exs == EXEC_IDLE)
+ handle_command(ret);
+ else if (exec_pid > 0)
+ kill(exec_pid, SIGTERM);
+ return 0;
+}
+
+static void signal_pre_select(struct sched *s, void *context)
+{
+ struct signal_task *st = context;
+ para_fd_set(st->fd, &s->rfds, &s->max_fileno);
}
static void print_scroll_msg(void)
{
unsigned lines_total, filled = ringbuffer_filled(bot_win_rb);
int first_rbe = first_visible_rbe(&lines_total);
+
print_in_bar(COLOR_MSG, "scrolled view: %d-%d/%d\n", filled - first_rbe,
filled - scroll_position, ringbuffer_filled(bot_win_rb));
}
static void com_scroll_top(void)
{
- int i = RINGBUFFER_SIZE - 1;
+ int i = RINGBUFFER_SIZE - 1, bot_lines = get_num_lines(&bot);
unsigned lines = 0;
while (i > 0 && !ringbuffer_get(bot_win_rb, i))
i--;
/* i is oldest entry */
- for (; lines < bot.lines && i >= 0; i--) {
+ for (; lines < bot_lines && i >= 0; i--) {
struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
if (!rbe)
break;
print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n");
}
-static void com_cancel_scrolling(void)
+static void com_cancel_scroll(void)
{
if (scroll_position == 0) {
static void com_page_down(void)
{
unsigned lines = 0;
- int i = scroll_position;
- while (lines < bot.lines && --i > 0) {
+ int i = scroll_position, bot_lines = get_num_lines(&bot);
+
+ while (lines < bot_lines && --i > 0) {
struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
if (!rbe)
break;
static void com_page_up(void)
{
unsigned lines;
- int fvr = first_visible_rbe(&lines);
+ int fvr = first_visible_rbe(&lines), bot_lines = get_num_lines(&bot);
if (fvr < 0 || fvr + 1 >= ringbuffer_filled(bot_win_rb)) {
print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n");
scroll_position = fvr + 1;
for (; scroll_position > 0; scroll_position--) {
first_visible_rbe(&lines);
- if (lines == bot.lines)
+ if (lines == bot_lines)
break;
}
redraw_bot_win();
static void com_scroll_down(void)
{
struct rb_entry *rbe;
- int rbe_lines;
+ int rbe_lines, bot_lines = get_num_lines(&bot);
if (!scroll_position) {
print_in_bar(COLOR_ERRMSG, "bottom of buffer is shown\n");
rbe = ringbuffer_get(bot_win_rb, scroll_position);
rbe_lines = NUM_LINES(rbe->len);
wscrl(bot.win, rbe_lines);
- wmove(bot.win, bot.lines - rbe_lines, 0);
+ wmove(bot.win, bot_lines - rbe_lines, 0);
wattron(bot.win, COLOR_PAIR(rbe->color));
waddstr(bot.win, rbe->msg);
- wrefresh(bot.win);
+ refresh_window(&bot);
print_scroll_msg();
}
break;
rbe_lines = NUM_LINES(rbe->len);
lines += rbe_lines;
-// fprintf(stderr, "msg: %s\n", rbe->msg);
wattron(bot.win, COLOR_PAIR(rbe->color));
waddstr(bot.win, "\n");
waddstr(bot.win, rbe->msg);
break;
i--;
}
- wrefresh(bot.win);
+ refresh_window(&bot);
print_scroll_msg();
return;
err_out:
print_in_bar(COLOR_MSG, "loglevel set to %d\n", loglevel);
}
-/*
- * reread configuration, terminate on errors
- */
static void com_reread_conf(void)
{
- char *cf =configfile_exists();
- struct gui_cmdline_parser_params params = {
- .override = 1,
- .initialize = 1,
- .check_required = 0,
- .check_ambiguity = 0,
- .print_errors = 0,
- };
-
- if (!cf) {
- PARA_WARNING_LOG("there is no configuration to read");
- return;
- }
- PARA_INFO_LOG("rereading command line options and config file");
- gui_cmdline_parser_ext(_argc, _argv, &conf, ¶ms);
- gui_cmdline_parser_config_file(cf, &conf, ¶ms);
- PARA_NOTICE_LOG("config file reloaded");
- if (check_key_map_args() < 0)
- finish(EXIT_FAILURE);
+ reread_conf();
}
static void com_help(void)
static void com_shrink_top_win(void)
{
- if (top.lines <= theme.top_lines_min) {
- PARA_WARNING_LOG("can not decrease top window");
+ int top_lines = get_num_lines(&top);
+
+ if (top_lines <= theme.top_lines_min) {
+ PARA_WARNING_LOG("can not decrease top window\n");
return;
}
- init_wins(top.lines - 1);
- wclear(top.win);
- print_all_items();
+ init_wins(top_lines - 1);
print_in_bar(COLOR_MSG, "%s", "decreased top window");
}
static void com_enlarge_top_win(void)
{
- if (bot.lines < 3) {
- PARA_WARNING_LOG("can not increase top window");
+ int top_lines = get_num_lines(&top), bot_lines = get_num_lines(&bot);
+
+ if (bot_lines < 3) {
+ PARA_WARNING_LOG("can not increase top window\n");
return;
}
- init_wins(top.lines + 1);
- wclear(top.win);
- print_all_items();
+ init_wins(top_lines + 1);
print_in_bar(COLOR_MSG, "increased top window");
}
__noreturn static void com_quit(void)
{
- finish(0);
+ die(EXIT_SUCCESS, "%s", "");
}
static void com_refresh(void)
init_curses();
}
-static void change_theme(int next)
-{
- if (next)
- next_theme(&theme);
- else
- prev_theme(&theme);
- /* This seems to be needed twice, why? */
- com_refresh();
- com_refresh();
- PARA_NOTICE_LOG("new theme: %s", theme.name);
-}
-
static void com_next_theme(void)
{
- change_theme(1);
+ theme_next(&theme);
+ com_refresh();
}
static void com_prev_theme(void)
{
- change_theme(0);
-}
-
-
-static void handle_command(int c)
-{
- int i;
-
- /* first check user's key bindings */
- for (i = 0; i < conf.key_map_given; ++i) {
- char *tmp, *handler, *arg;
-
- tmp = para_strdup(conf.key_map_arg[i]);
- if (!split_key_map(tmp, &handler, &arg)) {
- free(tmp);
- return;
- }
- if (strcmp(tmp, km_keyname(c))) {
- free(tmp);
- continue;
- }
- if (*handler == 'd')
- display_cmd(arg);
- else if (*handler == 'x')
- external_cmd(arg);
- else if (*handler == 'p')
- para_cmd(arg);
- else if (*handler == 'i') {
- int num = find_cmd_byname(arg);
- if (num >= 0)
- command_list[num].handler();
- }
- free(tmp);
- return;
- }
- /* not found, check internal key bindings */
- for (i = 0; command_list[i].handler; i++) {
- if (!strcmp(km_keyname(c), command_list[i].key)) {
- command_list[i].handler();
- return;
- }
- }
- print_in_bar(COLOR_ERRMSG, "key '%s' is not bound, press ? for help",
- km_keyname(c));
+ theme_prev(&theme);
+ com_refresh();
}
__noreturn static void print_help_and_die(void)
exit(0);
}
-int main(int argc, char *argv[])
+static int setup_tasks_and_schedule(void)
{
- int ret;
- char *cf;
+ struct exec_task exec_task = {.task = NULL};
+ struct status_task status_task = {.fd = -1};
+ struct input_task input_task = {.task = NULL};
+ struct signal_task signal_task = {.task = NULL};
+ struct sched sched = {
+ .default_timeout = {
+ .tv_sec = conf.timeout_arg / 1000,
+ .tv_usec = (conf.timeout_arg % 1000) * 1000,
+ },
+ };
- _argc = argc;
- _argv = argv;
+ exec_task.task = task_register(&(struct task_info) {
+ .name = "exec",
+ .pre_select = exec_pre_select,
+ .post_select = exec_post_select,
+ .context = &exec_task,
+ }, &sched);
+
+ status_task.task = task_register(&(struct task_info) {
+ .name = "status",
+ .pre_select = status_pre_select,
+ .post_select = status_post_select,
+ .context = &status_task,
+ }, &sched);
+
+ input_task.task = task_register(&(struct task_info) {
+ .name = "input",
+ .pre_select = input_pre_select,
+ .post_select = input_post_select,
+ .context = &input_task,
+ }, &sched);
+
+ signal_task.fd = para_signal_init();
+ para_install_sighandler(SIGINT);
+ para_install_sighandler(SIGTERM);
+ para_install_sighandler(SIGCHLD);
+ para_install_sighandler(SIGUSR1);
+ signal_task.task = task_register(&(struct task_info) {
+ .name = "signal",
+ .pre_select = signal_pre_select,
+ .post_select = signal_post_select,
+ .context = &signal_task,
+ }, &sched);
+ return schedule(&sched);
+}
+/**
+ * The main function of para_gui.
+ *
+ * \param argc Usual argument count.
+ * \param argv Usual argument vector.
+ *
+ * After initialization para_gui registers the following tasks to the paraslash
+ * scheduler: status, exec, signal, input.
+ *
+ * The status task executes the para_audioc stat command to obtain the status
+ * of para_server and para_audiod, and displays this information in the top
+ * window of para_gui.
+ *
+ * The exec task is responsible for printing the output of the currently
+ * running executable to the bottom window.
+ *
+ * The signal task performs suitable actions according to any signals received.
+ * For example it refreshes all windows on terminal size changes and resets the
+ * terminal on \p SIGTERM.
+ *
+ * The input task reads single key strokes from stdin. For each key pressed, it
+ * executes the command handler associated with this key.
+ *
+ * \return \p EXIT_SUCCESS or \p EXIT_FAILURE.
+ */
+int main(int argc, char *argv[])
+{
gui_cmdline_parser(argc, argv, &conf); /* exits on errors */
loglevel = get_loglevel_by_name(conf.loglevel_arg);
version_handle_flag("gui", conf.version_given);
if (conf.help_given || conf.detailed_help_given)
print_help_and_die();
- cf = configfile_exists();
- if (!cf && conf.config_file_given) {
- fprintf(stderr, "can not read config file %s\n",
- conf.config_file_arg);
- exit(EXIT_FAILURE);
- }
- if (cf) {
- struct gui_cmdline_parser_params params = {
- .override = 0,
- .initialize = 0,
- .check_required = 0,
- .check_ambiguity = 0,
- .print_errors = 1,
- };
- gui_cmdline_parser_config_file(cf, &conf, ¶ms);
- loglevel = get_loglevel_by_name(conf.loglevel_arg);
- }
- if (check_key_map_args() < 0) {
- fprintf(stderr, "invalid key map\n");
- exit(EXIT_FAILURE);
- }
- init_theme_or_die(conf.theme_arg, &theme);
- top.lines = theme.top_lines_default;
- setup_signal_handling();
+ parse_config_file_or_die(false /* override */);
bot_win_rb = ringbuffer_new(RINGBUFFER_SIZE);
setlocale(LC_CTYPE, "");
initscr(); /* needed only once, always successful */
init_curses();
- print_welcome();
- for (;;) {
- print_status_bar();
- ret = do_select(GETCH_MODE);
- if (!ret)
- continue;
- print_in_bar(COLOR_MSG, " ");
- handle_command(ret);
- }
+ return setup_tasks_and_schedule() < 0? EXIT_FAILURE : EXIT_SUCCESS;
}
/** \file gui.h symbols used by gui and gui_theme */
+/**
+ * The foreground and background color of each status item, the decorations and
+ * all messages can be customized through an instance of this structure.
+ */
+struct gui_color_spec {
+ int fg; /**< Foreground color. */
+ int bg; /**< Background color. */
+};
+
+/** How to display one status item. */
struct stat_item_data {
- const char *prefix, *postfix;
- unsigned x, y, len;
- int fg, bg, align;
+ const char *prefix; /**< Text to print before the item content. */
+ const char *postfix; /**< Text to print after item content. */
+ unsigned x; /**< Horizontal start coordinate for this item. */
+ unsigned y; /**< Vertical start coordinate for this item. */
+ unsigned len; /**< Item width, including \a prefix and \a postfix. */
+ struct gui_color_spec color; /**< Foreground and background color. */
+ int align; /**< How to align this item. */
};
+/** Theme definition. */
struct gui_theme {
+ /** Printed at startup. */
const char *name;
+ /** Also printed at startup. */
const char *author;
- int sb_fg, sb_bg;
- int cmd_fg, cmd_bg;
- int output_fg, output_bg;
- int msg_fg, msg_bg;
- int err_msg_fg, err_msg_bg;
- int welcome_fg, welcome_bg;
- int sep_fg, sep_bg;
- const char *sep_str;
- int default_fg, default_bg;
-
- int top_lines_default, top_lines_min;
- int lines_min, cols_min;
+ /** The character for the separator line. */
+ char sep_char;
+ /** Default color, see assume_default_colors(3). */
+ struct gui_color_spec dflt;
+ /** Default number of lines of the top window. */
+ int top_lines_default;
+ /** Minimal admissible number of lines to display the top window. */
+ int top_lines_min;
+ /** Minimal admissible number of lines to display this theme. */
+ int lines_min;
+ /** Minimal admissible number of columns to display this theme. */
+ int cols_min;
+ /** Individual status item properties. */
struct stat_item_data data[NUM_STAT_ITEMS];
+ /** Color of the status bar. */
+ struct gui_color_spec sb;
+ /** Color of the name and args of the executing process. */
+ struct gui_color_spec cmd;
+ /** Color for stdout of the executing process. */
+ struct gui_color_spec output;
+ /** Color for log messages of moderate severity. */
+ struct gui_color_spec msg;
+ /** Color for severe log messages. */
+ struct gui_color_spec err_msg;
+ /** Color for the separator line. */
+ struct gui_color_spec sep;
};
-void init_theme_or_die(const char *name, struct gui_theme *t);
-void next_theme(struct gui_theme *);
-void prev_theme(struct gui_theme *);
+void theme_init(const char *name, struct gui_theme *t);
+void theme_prev(struct gui_theme *t);
+void theme_next(struct gui_theme *t);
+
+/** Status item text should be left-aligned. */
#define LEFT 1
+/** Status item text should be right-aligned. */
#define RIGHT 2
+/** Status item text should be displayed centered. */
#define CENTER 3
* Licensed under the GPL v2. For licencing details see COPYING.
*/
+/** \file gui_theme.c Theme definitions. */
+
#include "para.h"
#include "gui.h"
#include <curses.h>
t->top_lines_min = 2;
t->cols_min = 40;
t->top_lines_default = 2;
- t->sb_bg = COLOR_CYAN;
- t->sb_fg = COLOR_BLACK;
- t->cmd_bg = COLOR_WHITE;
- t->cmd_fg = COLOR_BLACK;
- t->output_bg = COLOR_BLUE;
- t->output_fg = COLOR_WHITE;
- t->msg_bg = COLOR_BLUE;
- t->msg_fg = COLOR_YELLOW;
- t->err_msg_bg = COLOR_RED;
- t->err_msg_fg = COLOR_WHITE;
- t->welcome_bg = COLOR_BLUE;
- t->welcome_fg = COLOR_WHITE;
- t->sep_bg = COLOR_BLUE;
- t->sep_fg = COLOR_CYAN;
- t->default_fg = COLOR_WHITE;
- t->default_bg = COLOR_BLUE;
- t->sep_str = "*";
+ t->sb.bg = COLOR_CYAN;
+ t->sb.fg = COLOR_BLACK;
+ t->cmd.bg = COLOR_WHITE;
+ t->cmd.fg = COLOR_BLACK;
+ t->output.bg = COLOR_BLUE;
+ t->output.fg = COLOR_WHITE;
+ t->msg.bg = COLOR_BLUE;
+ t->msg.fg = COLOR_YELLOW;
+ t->err_msg.bg = COLOR_RED;
+ t->err_msg.fg = COLOR_WHITE;
+ t->sep.bg = COLOR_BLUE;
+ t->sep.fg = COLOR_CYAN;
+ t->dflt.fg = COLOR_WHITE;
+ t->dflt.bg = COLOR_BLUE;
+ t->sep_char = '*';
d[SI_BASENAME].prefix = "";
d[SI_BASENAME].postfix = "";
- d[SI_BASENAME].fg = COLOR_WHITE;
- d[SI_BASENAME].bg = COLOR_BLUE;
+ d[SI_BASENAME].color.fg = COLOR_WHITE;
+ d[SI_BASENAME].color.bg = COLOR_BLUE;
d[SI_BASENAME].align = CENTER;
d[SI_BASENAME].x = 0;
d[SI_BASENAME].y = 7;
d[SI_STATUS].prefix = "para_server: ";
d[SI_STATUS].postfix = "";
- d[SI_STATUS].fg = COLOR_WHITE;
- d[SI_STATUS].bg = COLOR_BLUE;
+ d[SI_STATUS].color.fg = COLOR_WHITE;
+ d[SI_STATUS].color.bg = COLOR_BLUE;
d[SI_STATUS].align = CENTER;
d[SI_STATUS].x = 0;
d[SI_STATUS].y = 60;
d[SI_AUDIOD_STATUS].prefix = "para_audiod: ";
d[SI_AUDIOD_STATUS].postfix = "";
- d[SI_AUDIOD_STATUS].fg = COLOR_WHITE;
- d[SI_AUDIOD_STATUS].bg = COLOR_BLUE;
+ d[SI_AUDIOD_STATUS].color.fg = COLOR_WHITE;
+ d[SI_AUDIOD_STATUS].color.bg = COLOR_BLUE;
d[SI_AUDIOD_STATUS].align = CENTER;
d[SI_AUDIOD_STATUS].x = 50;
d[SI_AUDIOD_STATUS].y = 60;
t->top_lines_min = 9;
t->top_lines_default = 11; /* default number of lines */
- t->sb_bg = COLOR_GREEN; /* status bar background */
- t->sb_fg = COLOR_BLACK; /* status bar foreground */
- t->cmd_bg = COLOR_BLACK;
- t->cmd_fg = COLOR_YELLOW;
- t->output_bg = COLOR_BLACK;
- t->output_fg = COLOR_CYAN;
- t->msg_bg = COLOR_BLACK;
- t->msg_fg = COLOR_WHITE;
- t->err_msg_bg = COLOR_RED;
- t->err_msg_fg = COLOR_WHITE;
- t->welcome_bg = COLOR_BLUE;
- t->welcome_fg = COLOR_WHITE;
- t->sep_bg = COLOR_BLACK; /* color of the separator */
- t->sep_fg = COLOR_BLUE;
- t->sep_str = "-";
- t->default_bg = COLOR_BLACK;
- t->default_fg = COLOR_MAGENTA;
+ t->sb.bg = COLOR_GREEN; /* status bar background */
+ t->sb.fg = COLOR_BLACK; /* status bar foreground */
+ t->cmd.bg = COLOR_BLACK;
+ t->cmd.fg = COLOR_YELLOW;
+ t->output.bg = COLOR_BLACK;
+ t->output.fg = COLOR_CYAN;
+ t->msg.bg = COLOR_BLACK;
+ t->msg.fg = COLOR_WHITE;
+ t->err_msg.bg = COLOR_RED;
+ t->err_msg.fg = COLOR_WHITE;
+ t->sep.bg = COLOR_BLACK; /* color of the separator */
+ t->sep.fg = COLOR_BLUE;
+ t->sep_char = 0; /* default (ACS_HLINE) */
+ t->dflt.bg = COLOR_BLACK;
+ t->dflt.fg = COLOR_MAGENTA;
d[SI_PLAY_TIME].prefix = "";
d[SI_PLAY_TIME].postfix = "";
- d[SI_PLAY_TIME].fg = COLOR_CYAN;
- d[SI_PLAY_TIME].bg = COLOR_BLACK;
+ d[SI_PLAY_TIME].color.fg = COLOR_CYAN;
+ d[SI_PLAY_TIME].color.bg = COLOR_BLACK;
d[SI_PLAY_TIME].align = CENTER;
d[SI_PLAY_TIME].x = 0;
d[SI_PLAY_TIME].y = 7;
d[SI_BASENAME].prefix = "";
d[SI_BASENAME].postfix = "";
- d[SI_BASENAME].fg = COLOR_CYAN;
- d[SI_BASENAME].bg = COLOR_BLACK;
+ d[SI_BASENAME].color.fg = COLOR_CYAN;
+ d[SI_BASENAME].color.bg = COLOR_BLACK;
d[SI_BASENAME].align = LEFT;
d[SI_BASENAME].x = 35;
d[SI_BASENAME].y = 7;
d[SI_STATUS].prefix = "";
d[SI_STATUS].postfix = " ";
- d[SI_STATUS].fg = COLOR_RED;
- d[SI_STATUS].bg = COLOR_BLACK;
+ d[SI_STATUS].color.fg = COLOR_RED;
+ d[SI_STATUS].color.bg = COLOR_BLACK;
d[SI_STATUS].align = RIGHT;
d[SI_STATUS].x = 0;
d[SI_STATUS].y = 17;
d[SI_STATUS_FLAGS].prefix = "(";
d[SI_STATUS_FLAGS].postfix = ")";
- d[SI_STATUS_FLAGS].fg = COLOR_RED;
- d[SI_STATUS_FLAGS].bg = COLOR_BLACK;
+ d[SI_STATUS_FLAGS].color.fg = COLOR_RED;
+ d[SI_STATUS_FLAGS].color.bg = COLOR_BLACK;
d[SI_STATUS_FLAGS].align = LEFT;
d[SI_STATUS_FLAGS].x = 11;
d[SI_STATUS_FLAGS].y = 17;
d[SI_IMAGE_ID].prefix = "img: ";
d[SI_IMAGE_ID].postfix = "";
- d[SI_IMAGE_ID].fg = COLOR_RED;
- d[SI_IMAGE_ID].bg = COLOR_BLACK;
+ d[SI_IMAGE_ID].color.fg = COLOR_RED;
+ d[SI_IMAGE_ID].color.bg = COLOR_BLACK;
d[SI_IMAGE_ID].align = CENTER;
d[SI_IMAGE_ID].x = 21;
d[SI_IMAGE_ID].y = 17;
d[SI_LYRICS_ID].prefix = "lyr: ";
d[SI_LYRICS_ID].postfix = "";
- d[SI_LYRICS_ID].fg = COLOR_RED;
- d[SI_LYRICS_ID].bg = COLOR_BLACK;
+ d[SI_LYRICS_ID].color.fg = COLOR_RED;
+ d[SI_LYRICS_ID].color.bg = COLOR_BLACK;
d[SI_LYRICS_ID].align = CENTER;
d[SI_LYRICS_ID].x = 31;
d[SI_LYRICS_ID].y = 17;
d[SI_FORMAT].prefix = "format: ";
d[SI_FORMAT].postfix = "";
- d[SI_FORMAT].fg = COLOR_RED;
- d[SI_FORMAT].bg = COLOR_BLACK;
+ d[SI_FORMAT].color.fg = COLOR_RED;
+ d[SI_FORMAT].color.bg = COLOR_BLACK;
d[SI_FORMAT].align = CENTER;
d[SI_FORMAT].x = 42;
d[SI_FORMAT].y = 17;
d[SI_NUM_PLAYED].prefix = "#";
d[SI_NUM_PLAYED].postfix = "";
- d[SI_NUM_PLAYED].fg = COLOR_RED;
- d[SI_NUM_PLAYED].bg = COLOR_BLACK;
+ d[SI_NUM_PLAYED].color.fg = COLOR_RED;
+ d[SI_NUM_PLAYED].color.bg = COLOR_BLACK;
d[SI_NUM_PLAYED].align = LEFT;
d[SI_NUM_PLAYED].x = 60;
d[SI_NUM_PLAYED].y = 17;
d[SI_BITRATE].prefix = "";
d[SI_BITRATE].postfix = "";
- d[SI_BITRATE].fg = COLOR_RED;
- d[SI_BITRATE].bg = COLOR_BLACK;
+ d[SI_BITRATE].color.fg = COLOR_RED;
+ d[SI_BITRATE].color.bg = COLOR_BLACK;
d[SI_BITRATE].align = CENTER;
d[SI_BITRATE].x = 65;
d[SI_BITRATE].y = 17;
d[SI_FREQUENCY].prefix = "";
d[SI_FREQUENCY].postfix = "";
- d[SI_FREQUENCY].fg = COLOR_RED;
- d[SI_FREQUENCY].bg = COLOR_BLACK;
+ d[SI_FREQUENCY].color.fg = COLOR_RED;
+ d[SI_FREQUENCY].color.bg = COLOR_BLACK;
d[SI_FREQUENCY].align = CENTER;
d[SI_FREQUENCY].x = 78;
d[SI_FREQUENCY].y = 17;
d[SI_SCORE].prefix = "sc: ";
d[SI_SCORE].postfix = "";
- d[SI_SCORE].fg = COLOR_RED;
- d[SI_SCORE].bg = COLOR_BLACK;
+ d[SI_SCORE].color.fg = COLOR_RED;
+ d[SI_SCORE].color.bg = COLOR_BLACK;
d[SI_SCORE].align = CENTER;
d[SI_SCORE].x = 88;
d[SI_SCORE].y = 17;
d[SI_AUDIOD_STATUS].prefix = "";
d[SI_AUDIOD_STATUS].postfix = "";
- d[SI_AUDIOD_STATUS].fg = COLOR_MAGENTA;
- d[SI_AUDIOD_STATUS].bg = COLOR_BLACK;
+ d[SI_AUDIOD_STATUS].color.fg = COLOR_MAGENTA;
+ d[SI_AUDIOD_STATUS].color.bg = COLOR_BLACK;
d[SI_AUDIOD_STATUS].align = CENTER;
d[SI_AUDIOD_STATUS].x = 0;
d[SI_AUDIOD_STATUS].y = 27;
d[SI_DECODER_FLAGS].prefix = "[";
d[SI_DECODER_FLAGS].postfix = "]";
- d[SI_DECODER_FLAGS].fg = COLOR_MAGENTA;
- d[SI_DECODER_FLAGS].bg = COLOR_BLACK;
+ d[SI_DECODER_FLAGS].color.fg = COLOR_MAGENTA;
+ d[SI_DECODER_FLAGS].color.bg = COLOR_BLACK;
d[SI_DECODER_FLAGS].align = CENTER;
d[SI_DECODER_FLAGS].x = 5;
d[SI_DECODER_FLAGS].y = 27;
d[SI_MTIME].prefix = "mod: ";
d[SI_MTIME].postfix = "";
- d[SI_MTIME].fg = COLOR_MAGENTA;
- d[SI_MTIME].bg = COLOR_BLACK;
+ d[SI_MTIME].color.fg = COLOR_MAGENTA;
+ d[SI_MTIME].color.bg = COLOR_BLACK;
d[SI_MTIME].align = CENTER;
d[SI_MTIME].x = 15;
d[SI_MTIME].y = 27;
d[SI_FILE_SIZE].prefix = "";
d[SI_FILE_SIZE].postfix = "kb";
- d[SI_FILE_SIZE].fg = COLOR_MAGENTA;
- d[SI_FILE_SIZE].bg = COLOR_BLACK;
+ d[SI_FILE_SIZE].color.fg = COLOR_MAGENTA;
+ d[SI_FILE_SIZE].color.bg = COLOR_BLACK;
d[SI_FILE_SIZE].align = CENTER;
d[SI_FILE_SIZE].x = 37;
d[SI_FILE_SIZE].y = 27;
d[SI_CHANNELS].prefix = "";
d[SI_CHANNELS].postfix = "ch";
- d[SI_CHANNELS].fg = COLOR_MAGENTA;
- d[SI_CHANNELS].bg = COLOR_BLACK;
+ d[SI_CHANNELS].color.fg = COLOR_MAGENTA;
+ d[SI_CHANNELS].color.bg = COLOR_BLACK;
d[SI_CHANNELS].align = CENTER;
d[SI_CHANNELS].x = 47;
d[SI_CHANNELS].y = 27;
d[SI_LAST_PLAYED].prefix = "lp: ";
d[SI_LAST_PLAYED].postfix = "";
- d[SI_LAST_PLAYED].fg = COLOR_MAGENTA;
- d[SI_LAST_PLAYED].bg = COLOR_BLACK;
+ d[SI_LAST_PLAYED].color.fg = COLOR_MAGENTA;
+ d[SI_LAST_PLAYED].color.bg = COLOR_BLACK;
d[SI_LAST_PLAYED].align = CENTER;
d[SI_LAST_PLAYED].x = 52;
d[SI_LAST_PLAYED].y = 27;
d[SI_NUM_CHUNKS].prefix = "";
d[SI_NUM_CHUNKS].postfix = "x";
- d[SI_NUM_CHUNKS].fg = COLOR_MAGENTA;
- d[SI_NUM_CHUNKS].bg = COLOR_BLACK;
+ d[SI_NUM_CHUNKS].color.fg = COLOR_MAGENTA;
+ d[SI_NUM_CHUNKS].color.bg = COLOR_BLACK;
d[SI_NUM_CHUNKS].align = RIGHT;
d[SI_NUM_CHUNKS].x = 73;
d[SI_NUM_CHUNKS].y = 27;
d[SI_CHUNK_TIME].prefix = "";
d[SI_CHUNK_TIME].postfix = "ms";
- d[SI_CHUNK_TIME].fg = COLOR_MAGENTA;
- d[SI_CHUNK_TIME].bg = COLOR_BLACK;
+ d[SI_CHUNK_TIME].color.fg = COLOR_MAGENTA;
+ d[SI_CHUNK_TIME].color.bg = COLOR_BLACK;
d[SI_CHUNK_TIME].align = LEFT;
d[SI_CHUNK_TIME].x = 84;
d[SI_CHUNK_TIME].y = 27;
d[SI_AMPLIFICATION].prefix = "amp:";
d[SI_AMPLIFICATION].postfix = "";
- d[SI_AMPLIFICATION].fg = COLOR_MAGENTA;
- d[SI_AMPLIFICATION].bg = COLOR_BLACK;
+ d[SI_AMPLIFICATION].color.fg = COLOR_MAGENTA;
+ d[SI_AMPLIFICATION].color.bg = COLOR_BLACK;
d[SI_AMPLIFICATION].align = RIGHT;
d[SI_AMPLIFICATION].x = 92;
d[SI_AMPLIFICATION].y = 27;
d[SI_TECHINFO].prefix = "";
d[SI_TECHINFO].postfix = "";
- d[SI_TECHINFO].fg = COLOR_GREEN;
- d[SI_TECHINFO].bg = COLOR_BLACK;
+ d[SI_TECHINFO].color.fg = COLOR_GREEN;
+ d[SI_TECHINFO].color.bg = COLOR_BLACK;
d[SI_TECHINFO].align = CENTER;
d[SI_TECHINFO].x = 0;
d[SI_TECHINFO].y = 43;
d[SI_TITLE].prefix = "";
d[SI_TITLE].postfix = ",";
- d[SI_TITLE].fg = COLOR_GREEN;
- d[SI_TITLE].bg = COLOR_BLACK;
+ d[SI_TITLE].color.fg = COLOR_GREEN;
+ d[SI_TITLE].color.bg = COLOR_BLACK;
d[SI_TITLE].align = RIGHT;
d[SI_TITLE].x = 0;
d[SI_TITLE].y = 53;
d[SI_ARTIST].prefix = " by ";
d[SI_ARTIST].postfix = "";
- d[SI_ARTIST].fg = COLOR_GREEN;
- d[SI_ARTIST].bg = COLOR_BLACK;
+ d[SI_ARTIST].color.fg = COLOR_GREEN;
+ d[SI_ARTIST].color.bg = COLOR_BLACK;
d[SI_ARTIST].align = LEFT;
d[SI_ARTIST].x = 45;
d[SI_ARTIST].y = 53;
d[SI_YEAR].prefix = "(";
d[SI_YEAR].postfix = ")";
- d[SI_YEAR].fg = COLOR_GREEN;
- d[SI_YEAR].bg = COLOR_BLACK;
+ d[SI_YEAR].color.fg = COLOR_GREEN;
+ d[SI_YEAR].color.bg = COLOR_BLACK;
d[SI_YEAR].align = RIGHT;
d[SI_YEAR].x = 90;
d[SI_YEAR].y = 53;
d[SI_ALBUM].prefix = "A: ";
d[SI_ALBUM].postfix = ",";
- d[SI_ALBUM].fg = COLOR_GREEN;
- d[SI_ALBUM].bg = COLOR_BLACK;
+ d[SI_ALBUM].color.fg = COLOR_GREEN;
+ d[SI_ALBUM].color.bg = COLOR_BLACK;
d[SI_ALBUM].align = RIGHT;
d[SI_ALBUM].x = 0;
d[SI_ALBUM].y = 63;
d[SI_COMMENT].prefix = " C: ";
d[SI_COMMENT].postfix = "";
- d[SI_COMMENT].fg = COLOR_GREEN;
- d[SI_COMMENT].bg = COLOR_BLACK;
+ d[SI_COMMENT].color.fg = COLOR_GREEN;
+ d[SI_COMMENT].color.bg = COLOR_BLACK;
d[SI_COMMENT].align = LEFT;
d[SI_COMMENT].x = 50;
d[SI_COMMENT].y = 63;
d[SI_AFS_MODE].prefix = "";
d[SI_AFS_MODE].postfix = "";
- d[SI_AFS_MODE].fg = COLOR_YELLOW;
- d[SI_AFS_MODE].bg = COLOR_BLACK;
+ d[SI_AFS_MODE].color.fg = COLOR_YELLOW;
+ d[SI_AFS_MODE].color.bg = COLOR_BLACK;
d[SI_AFS_MODE].align = CENTER;
d[SI_AFS_MODE].x = 0;
d[SI_AFS_MODE].y = 77;
d[SI_ATTRIBUTES_TXT].prefix = "";
d[SI_ATTRIBUTES_TXT].postfix = "";
- d[SI_ATTRIBUTES_TXT].fg = COLOR_YELLOW;
- d[SI_ATTRIBUTES_TXT].bg = COLOR_BLACK;
+ d[SI_ATTRIBUTES_TXT].color.fg = COLOR_YELLOW;
+ d[SI_ATTRIBUTES_TXT].color.bg = COLOR_BLACK;
d[SI_ATTRIBUTES_TXT].align = CENTER;
d[SI_ATTRIBUTES_TXT].x = 0;
d[SI_ATTRIBUTES_TXT].y = 87;
d[SI_DIRECTORY].prefix = "dir: ";
d[SI_DIRECTORY].postfix = "";
- d[SI_DIRECTORY].fg = COLOR_YELLOW;
- d[SI_DIRECTORY].bg = COLOR_BLACK;
+ d[SI_DIRECTORY].color.fg = COLOR_YELLOW;
+ d[SI_DIRECTORY].color.bg = COLOR_BLACK;
d[SI_DIRECTORY].align = CENTER;
d[SI_DIRECTORY].x = 0;
d[SI_DIRECTORY].y = 97;
},
};
+/** Number of elements in the \a themes array. */
#define NUM_THEMES (ARRAY_SIZE(themes))
static int current_theme_num;
t->name = themes[num].name;
themes[num].init(t);
current_theme_num = num;
+ PARA_NOTICE_LOG("theme: %s\n", t->name);
}
-void init_theme_or_die(const char *name, struct gui_theme *t)
+/**
+ * Initialize a theme.
+ *
+ * \param name Name of the theme to be initialized.
+ * \param t The function fills out this structure.
+ *
+ * This function exits if there is no theme called \a name.
+ */
+void theme_init(const char *name, struct gui_theme *t)
{
int i;
exit(EXIT_FAILURE);
}
-void prev_theme(struct gui_theme *t)
+/**
+ * Activate the previous available theme.
+ *
+ * \param t Theme definition is stored here.
+ *
+ * This picks the theme that comes before the currently active one, or the last
+ * availabe theme, if the current one is the first.
+ *
+ * \sa \ref theme_next().
+ */
+void theme_prev(struct gui_theme *t)
{
return set_theme(++current_theme_num, t);
}
-void next_theme(struct gui_theme *t)
+/**
+ * Activate the next available theme.
+ *
+ * \param t Theme definition is stored here.
+ *
+ * This works exacly as theme_prev() but cycles forwards through the list of
+ * available themes.
+ */
+void theme_next(struct gui_theme *t)
{
return set_theme(--current_theme_num, t);
}
return ret;
}
-static void http_recv_pre_select(struct sched *s, struct task *t)
+static void http_recv_pre_select(struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
struct private_http_recv_data *phd = rn->private_data;
- if (generic_recv_pre_select(s, t) <= 0)
+ if (generic_recv_pre_select(s, rn) <= 0)
return;
if (phd->status == HTTP_CONNECTED)
para_fd_set(rn->fd, &s->wfds, &s->max_fileno);
* area with data read from the socket. In any case, update the state of the
* connection if necessary.
*/
-static int http_recv_post_select(struct sched *s, struct task *t)
+static int http_recv_post_select(struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
struct private_http_recv_data *phd = rn->private_data;
struct btr_node *btrn = rn->btrn;
int ret, iovcnt;
struct iovec iov[2];
size_t num_bytes;
- ret = task_get_notification(t);
+ ret = task_get_notification(rn->task);
if (ret < 0)
goto out;
ret = btr_node_status(btrn, 0, BTR_NT_ROOT);
FILE *stderr_stream;
int num_columns;
char empty_line[1000];
- struct task task;
+ struct task *task;
struct btr_node *stdout_btrn;
bool last_write_was_status;
bool line_handler_running;
*/
int i9e_get_error(void)
{
- return i9ep->task.error;
+ return task_status(i9ep->task);
}
static bool is_prefix(const char *partial, const char *full, size_t len)
free(line);
}
-static int i9e_post_select(__a_unused struct sched *s, __a_unused struct task *t)
+static int i9e_post_select(__a_unused struct sched *s, __a_unused void *context)
{
int ret;
struct i9e_client_info *ici = i9ep->ici;
return ret;
}
-static void i9e_pre_select(struct sched *s, __a_unused struct task *t)
+static void i9e_pre_select(struct sched *s, __a_unused void *context)
{
int ret;
* The caller must allocate and initialize the structure \a ici points to.
*
* \return Standard.
- * \sa \ref register_task().
*/
int i9e_open(struct i9e_client_info *ici, struct sched *s)
{
ret = mark_fd_nonblocking(ici->fds[1]);
if (ret < 0)
return ret;
- i9ep->task.pre_select = i9e_pre_select;
- i9ep->task.post_select = i9e_post_select;
- sprintf(i9ep->task.status, "i9e");
- register_task(s, &i9ep->task);
+ i9ep->task = task_register(&(struct task_info) {
+ .name = "i9e",
+ .pre_select = i9e_pre_select,
+ .post_select = i9e_post_select,
+ .context = i9ep,
+ }, s);
+
rl_readline_name = "para_i9e";
rl_basic_word_break_characters = " ";
rl_attempted_completion_function = i9e_completer;
#define MP3DEC_MAX_FRAME 8192
-static int mp3dec_post_select(__a_unused struct sched *s, struct task *t)
+static int mp3dec_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
int i, ret;
struct private_mp3dec_data *pmd = fn->private_data;
struct btr_node *btrn = fn->btrn;
return recv_buffer(fd, buf, size) > 0? 1 : -E_RECVMSG;
}
#else /* HAVE_UCRED */
+
/**
- * Send \p NULL-terminated buffer and Unix credentials of the current process.
+ * Send a buffer and the credentials of the current process to a socket.
*
- * \param sock The socket file descriptor.
- * \param buf The buffer to be sent.
+ * \param sock The file descriptor of the sending socket.
+ * \param buf The zero-terminated buffer to send.
*
- * \return On success, this call returns the number of characters sent. On
- * error, \p -E_SENDMSG is returned.
+ * \return On success, this call returns the number of bytes sent. On errors,
+ * \p -E_SENDMSG is returned.
*
- * \sa sendmsg(2), okir's Black Hats Manual.
+ * \sa \ref recv_cred_buffer, sendmsg(2), socket(7), unix(7), okir's Black Hats
+ * Manual.
*/
ssize_t send_cred_buffer(int sock, char *buf)
{
/* Response data */
iov.iov_base = buf;
- iov.iov_len = strlen(buf);
+ iov.iov_len = strlen(buf);
c.pid = getpid();
c.uid = getuid();
c.gid = getgid();
*(struct ucred *)CMSG_DATA(cmsg) = c;
msg.msg_controllen = cmsg->cmsg_len;
ret = sendmsg(sock, &msg, 0);
- if (ret < 0)
+ if (ret < 0)
ret = -E_SENDMSG;
return ret;
}
/**
* Receive a buffer and the Unix credentials of the sending process.
*
- * \param fd the socket file descriptor.
- * \param buf the buffer to store the message.
- * \param size the size of \a buffer.
+ * \param fd The file descriptor of the receiving socket.
+ * \param buf The buffer to store the received message.
+ * \param size The length of \a buf in bytes.
*
- * \return negative on errors, the user id on success.
+ * \return Negative on errors, the user id of the sending process on success.
*
- * \sa recvmsg(2), okir's Black Hats Manual.
+ * \sa \ref send_cred_buffer and the references given there.
*/
int recv_cred_buffer(int fd, char *buf, size_t size)
{
} else
if (cmsg->cmsg_level == SOL_SOCKET
&& cmsg->cmsg_type == SCM_RIGHTS) {
- dispose_fds((int *) CMSG_DATA(cmsg),
+ dispose_fds((int *)CMSG_DATA(cmsg),
(cmsg->cmsg_len - CMSG_LEN(0))
/ sizeof(int));
}
#define OGGDEC_MAX_OUTPUT_SIZE (96 * 1024)
#define OGGDEC_OUTPUT_CHUNK_SIZE (32 * 1024)
-static void ogg_pre_select(struct sched *s, struct task *t)
+static void ogg_pre_select(struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct private_oggdec_data *pod = fn->private_data;
struct btr_node *btrn = fn->btrn;
int ret;
sched_min_delay(s);
}
-static int ogg_post_select(__a_unused struct sched *s, struct task *t)
+static int ogg_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct private_oggdec_data *pod = fn->private_data;
struct btr_node *btrn = fn->btrn;
int ret, have;
#define OPUSDEC_MAX_OUTPUT_SIZE (1024 * 1024)
-static int opusdec_post_select(__a_unused struct sched *s, struct task *t)
+static int opusdec_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct opusdec_context *ctx = fn->private_data;
struct btr_node *btrn = fn->btrn;
int ret;
return ret;
}
-static void opusdec_pre_select(struct sched *s, struct task *t)
+static void opusdec_pre_select(struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct opusdec_context *ctx = fn->private_data;
int ret = btr_node_status(fn->btrn, fn->min_iqs, BTR_NT_INTERNAL);
}
}
-static void oss_pre_select(struct sched *s, struct task *t)
+static void oss_pre_select(struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_oss_write_data *powd = wn->private_data;
int ret = btr_node_status(wn->btrn, wn->min_iqs, BTR_NT_LEAF);
return ret;
}
-static int oss_post_select(__a_unused struct sched *s,
- struct task *t)
+static int oss_post_select(__a_unused struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_oss_write_data *powd = wn->private_data;
struct btr_node *btrn = wn->btrn;
size_t frames, bytes;
int ret;
char *data;
- ret = task_get_notification(t);
+ ret = task_get_notification(wn->task);
if (ret < 0)
goto out;
ret = btr_node_status(btrn, wn->min_iqs, BTR_NT_LEAF);
return btr_get_input_queue_size(powd->callback_btrn) != 0;
}
-static void osx_write_pre_select(struct sched *s, struct task *t)
+static void osx_write_pre_select(struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_osx_write_data *powd = wn->private_data;
int ret;
bool drain_delay_nec = false;
sched_request_timeout_ms(50, s);
}
-static int osx_write_post_select(__a_unused struct sched *s, struct task *t)
+static int osx_write_post_select(__a_unused struct sched *s, void *context)
{
- struct writer_node *wn = container_of(t, struct writer_node, task);
+ struct writer_node *wn = context;
struct private_osx_write_data *powd = wn->private_data;
struct btr_node *btrn = wn->btrn;
int ret;
- ret = task_get_notification(t);
+ ret = task_get_notification(wn->task);
if (ret < 0)
goto fail;
if (!powd) {
};
struct play_task {
- struct task task;
+ struct task *task;
/* A bit array of invalid files (those will be skipped). */
bool *invalid;
/* The file which is currently open. */
/* returns: 0 not eof, 1: eof, < 0: fatal error. */
static int get_playback_error(struct play_task *pt)
{
- int err = pt->wn.task.error;
+ int err;
+ if (!pt->wn.task)
+ return 0;
+ err = task_status(pt->wn.task);
if (err >= 0)
return 0;
- if (pt->fn.task.error >= 0)
+ if (task_status(pt->fn.task) >= 0)
return 0;
- if (pt->rn.task.error >= 0)
+ if (task_status(pt->rn.task) >= 0)
return 0;
if (err == -E_BTR_EOF || err == -E_RECV_EOF || err == -E_EOF
|| err == -E_WRITE_COMMON_EOF)
if (ret == 0)
return ret;
PARA_NOTICE_LOG("cleaning up wn/fn nodes\n");
+ task_reap(&pt->wn.task);
w->close(&pt->wn);
btr_remove_node(&pt->wn.btrn);
w->free_config(pt->wn.conf);
memset(&pt->wn, 0, sizeof(struct writer_node));
+ task_reap(&pt->fn.task);
decoder->close(&pt->fn);
btr_remove_node(&pt->fn.btrn);
free(pt->fn.conf);
memset(&pt->fn, 0, sizeof(struct filter_node));
+ task_reap(&pt->rn.task);
btr_remove_node(&pt->rn.btrn);
/*
* On eof (ret > 0), we do not wipe the receiver node struct until a
static void shuffle(char **base, size_t num)
{
- srandom(now->tv_sec);
+ srandom(time(NULL));
qsort(base, num, sizeof(char *), shuffle_compare);
}
free(tmp);
tmp = NULL;
}
- pt->rn.task.pre_select = afh_recv->pre_select;
- pt->rn.task.post_select = afh_recv->post_select;
- sprintf(pt->rn.task.status, "%s receiver node", afh_recv->name);
return 1;
fail:
wipe_receiver_node(pt);
static int load_file(struct play_task *pt)
{
const char *af;
- char *tmp;
+ char *tmp, buf[20];
int ret;
struct filter *decoder;
if (ret < 0)
return ret;
} else {
- char buf[20];
pt->rn.btrn = new_recv_btrn(&pt->rn);
sprintf(buf, "repos %lu", pt->start_chunk);
ret = btr_exec_up(pt->rn.btrn, buf, &tmp);
goto fail;
pt->fn.filter_num = ret;
decoder = filters + ret;
- pt->fn.task.pre_select = decoder->pre_select;
- pt->fn.task.post_select = decoder->post_select;
- sprintf(pt->fn.task.status, "%s decoder", af);
pt->fn.btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = decoder->name, .parent = pt->rn.btrn,
.handler = decoder->execute, .context = &pt->fn));
/* setup default writer */
pt->wn.conf = check_writer_arg_or_die(NULL, &pt->wn.writer_num);
- pt->wn.task.error = 0;
/* success, register tasks */
- register_task(&sched, &pt->rn.task);
- register_task(&sched, &pt->fn.task);
+ pt->rn.task = task_register(
+ &(struct task_info) {
+ .name = afh_recv->name,
+ .pre_select = afh_recv->pre_select,
+ .post_select = afh_recv->post_select,
+ .context = &pt->rn
+ }, &sched);
+ sprintf(buf, "%s decoder", af);
+ pt->fn.task = task_register(
+ &(struct task_info) {
+ .name = buf,
+ .pre_select = decoder->pre_select,
+ .post_select = decoder->post_select,
+ .context = &pt->fn
+ }, &sched);
register_writer_node(&pt->wn, pt->fn.btrn, &sched);
return 1;
fail:
static void kill_stream(struct play_task *pt)
{
- task_notify(&pt->wn.task, E_EOF);
+ if (pt->wn.task)
+ task_notify(pt->wn.task, E_EOF);
}
#ifdef HAVE_READLINE
* terminates. Subsequent calls to i9e_get_error() then return negative and we
* are allowed to call i9e_close() and terminate as well.
*/
-static int session_post_select(__a_unused struct sched *s, struct task *t)
+static int session_post_select(__a_unused struct sched *s, struct play_task *pt)
{
- struct play_task *pt = container_of(t, struct play_task, task);
int ret;
if (pt->background)
#else /* HAVE_READLINE */
-static int session_post_select(struct sched *s, struct task *t)
+static int session_post_select(struct sched *s, struct play_task *pt)
{
- struct play_task *pt = container_of(t, struct play_task, task);
char c;
if (!FD_ISSET(STDIN_FILENO, &s->rfds))
}
#endif /* HAVE_READLINE */
-static void play_pre_select(struct sched *s, struct task *t)
+static void play_pre_select(struct sched *s, void *context)
{
- struct play_task *pt = container_of(t, struct play_task, task);
+ struct play_task *pt = context;
char state;
para_fd_set(STDIN_FILENO, &s->rfds, &s->max_fileno);
);
}
-static int play_post_select(struct sched *s, struct task *t)
+static int play_post_select(struct sched *s, void *context)
{
- struct play_task *pt = container_of(t, struct play_task, task);
+ struct play_task *pt = context;
int ret;
ret = eof_cleanup(pt);
pt->rq = CRT_TERM_RQ;
return 0;
}
- ret = session_post_select(s, t);
+ ret = session_post_select(s, pt);
if (ret < 0)
goto out;
if (!pt->wn.btrn && !pt->fn.btrn) {
filter_init();
writer_init();
- clock_get_realtime(now);
sched.default_timeout.tv_sec = 5;
parse_config_or_die(argc, argv);
pt->rq = CRT_FILE_CHANGE;
pt->current_file = conf.inputs_num - 1;
pt->playing = true;
- pt->task.pre_select = play_pre_select;
- pt->task.post_select = play_post_select;
- sprintf(pt->task.status, "play task");
- register_task(&sched, &pt->task);
+ pt->task = task_register(&(struct task_info){
+ .name = "play",
+ .pre_select = play_pre_select,
+ .post_select = play_post_select,
+ .context = pt,
+ }, &sched);
ret = schedule(&sched);
+ sched_shutdown(&sched);
if (ret < 0)
PARA_ERROR_LOG("%s\n", para_strerror(-ret));
return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
struct timeval barrier;
};
-static void prebuffer_pre_select(struct sched *s, struct task *t)
+static void prebuffer_pre_select(struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct btr_node *btrn = fn->btrn;
size_t iqs = btr_get_input_queue_size(btrn);
struct private_prebuffer_data *ppd = fn->private_data;
free(fn->private_data);
}
-static int prebuffer_post_select(__a_unused struct sched *s, struct task *t)
+static int prebuffer_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct btr_node *btrn = fn->btrn;
size_t iqs = btr_get_input_queue_size(btrn);
struct private_prebuffer_data *ppd = fn->private_data;
int ret, r_opened = 0, receiver_num;
struct receiver *r = NULL;
struct receiver_node rn;
- struct stdout_task sot;
+ struct stdout_task sot = {.btrn = NULL};
static struct sched s;
+ struct task_info ti;
recv_cmdline_parser(argc, argv, &conf);
loglevel = get_loglevel_by_name(conf.loglevel_arg);
goto out;
r_opened = 1;
- memset(&sot, 0, sizeof(struct stdout_task));
sot.btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.parent = rn.btrn, .name = "stdout"));
- stdout_set_defaults(&sot);
- register_task(&s, &sot.task);
+ stdout_task_register(&sot, &s);
- rn.task.pre_select = r->pre_select;
- rn.task.post_select = r->post_select;
- sprintf(rn.task.status, "%s", r->name);
- register_task(&s, &rn.task);
+ ti.name = r->name;
+ ti.pre_select = r->pre_select;
+ ti.post_select = r->post_select;
+ ti.context = &rn;
+ rn.task = task_register(&ti, &s);
s.default_timeout.tv_sec = 1;
s.default_timeout.tv_usec = 0;
ret = schedule(&s);
+ sched_shutdown(&s);
out:
if (r_opened)
r->close(&rn);
/** Pointer to the configuration data for this instance. */
void *conf;
/** The task associated with this instance. */
- struct task task;
+ struct task *task;
/** The receiver node is always the root of the buffer tree. */
struct btr_node *btrn;
/** Each receiver node maintains a buffer pool for the received data. */
*
* \sa select(2), time.c struct task, struct sched.
*/
- void (*pre_select)(struct sched *s, struct task *t);
+ void (*pre_select)(struct sched *s, void *context);
/**
* Evaluate the result from select().
*
*
* \sa select(2), struct receiver.
*/
- int (*post_select)(struct sched *s, struct task *t);
+ int (*post_select)(struct sched *s, void *context);
/** The two help texts of this receiver. */
struct ggo_help help;
void recv_init(void);
void *check_receiver_arg(char *ra, int *receiver_num);
void print_receiver_helps(unsigned flags);
-int generic_recv_pre_select(struct sched *s, struct task *t);
+int generic_recv_pre_select(struct sched *s, struct receiver_node *rn);
/** \cond receiver */
extern void http_recv_init(struct receiver *r);
* Simple pre-select hook, used by all receivers.
*
* \param s Scheduler info.
- * \param t Determines the receiver node.
+ * \param rn The receiver node.
*
* This requests a minimal delay from the scheduler if the status of the buffer
* tree node indicates an error/eof condition. No file descriptors are added to
* \return The status of the btr node of the receiver node, i.e. the return
* value of the underlying call to \ref btr_node_status().
*/
-int generic_recv_pre_select(struct sched *s, struct task *t)
+int generic_recv_pre_select(struct sched *s, struct receiver_node *rn)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
int ret = btr_node_status(rn->btrn, 0, BTR_NT_ROOT);
- t->error = 0;
if (ret < 0)
sched_min_delay(s);
return ret;
btr_log_tree(btr_parent(btr_parent(btrn)), LL_INFO);
}
-static void resample_pre_select(struct sched *s, struct task *t)
+static void resample_pre_select(struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct resample_context *ctx = fn->private_data;
int ret = btr_node_status(fn->btrn, fn->min_iqs, BTR_NT_INTERNAL);
return data.input_frames_used;
}
-static int resample_post_select(__a_unused struct sched *s, struct task *t)
+static int resample_post_select(__a_unused struct sched *s, void *context)
{
int ret;
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct resample_context *ctx = fn->private_data;
struct resample_filter_args_info *conf = fn->conf;
struct btr_node *btrn = fn->btrn;
#include "time.h"
#include "error.h"
-static struct timeval now_struct;
-struct timeval *now = &now_struct;
-
-/*
- * Remove a task from the scheduler.
- *
- * \param t The task to remove.
- *
- * If the pre_select pointer of \a t is not \p NULL, it is removed from
- * the pre_select list of the scheduler. Same goes for \a post_select.
+/**
+ * The possible states of a task.
+ *
+ * In addition to the states listed here, a task may also enter zombie state.
+ * This happens when its ->post_select function returns negative, the ->status
+ * field is then set to this return value. Such tasks are not scheduled any
+ * more (i.e. ->pre_select() and ->post_select() are no longer called), but
+ * they stay on the scheduler task list until \ref task_reap() or
+ * \ref sched_shutdown() is called.
*/
-static void unregister_task(struct task *t)
-{
- assert(t->error < 0);
- PARA_INFO_LOG("unregistering %s (%s)\n", t->status,
- para_strerror(-t->error));
- if (t->pre_select)
- list_del(&t->pre_select_node);
- if (t->post_select)
- list_del(&t->post_select_node);
-}
+enum task_status {
+ /** Task has been reaped and may be removed from the task list. */
+ TS_DEAD,
+ /** Task is active. */
+ TS_RUNNING,
+};
+
+struct task {
+ /** A copy of the task name supplied when the task was registered. */
+ char *name;
+ /** Copied during task_register(). */
+ struct task_info info;
+ /* TS_RUNNING, TS_DEAD, or zombie (negative value). */
+ int status;
+ /** Position of the task in the task list of the scheduler. */
+ struct list_head node;
+ /** If less than zero, the task was notified by another task. */
+ int notification;
+};
+
+static struct timeval now_struct;
+const struct timeval *now = &now_struct;
static inline bool timeout_is_zero(struct sched *s)
{
{
struct task *t, *tmp;
- list_for_each_entry_safe(t, tmp, &s->pre_select_list, pre_select_node) {
+ list_for_each_entry_safe(t, tmp, &s->task_list, node) {
+ if (t->status < 0)
+ continue;
if (t->notification != 0)
sched_min_delay(s);
- if (t->pre_select)
- t->pre_select(s, t);
+ if (t->info.pre_select)
+ t->info.pre_select(s, t->info.context);
}
}
+static void unlink_and_free_task(struct task *t)
+{
+ PARA_INFO_LOG("freeing task %s\n", t->name);
+ list_del(&t->node);
+ free(t->name);
+ free(t);
+}
+
//#define SCHED_DEBUG 1
static inline void call_post_select(struct sched *s, struct task *t)
{
+ int ret;
+
#ifndef SCHED_DEBUG
- t->error = t->post_select(s, t);
+ ret = t->info.post_select(s, t->info.context);
#else
struct timeval t1, t2, diff;
unsigned long pst;
clock_get_realtime(&t1);
- t->error = t->post_select(s, t);
+ ret = t->info.post_select(s, t->info.context);
clock_get_realtime(&t2);
tv_diff(&t1, &t2, &diff);
pst = tv2ms(&diff);
if (pst > 50)
PARA_WARNING_LOG("%s: post_select time: %lums\n",
- t->status, pst);
+ t->name, pst);
#endif
+ t->status = ret < 0? ret : TS_RUNNING;
}
-static void sched_post_select(struct sched *s)
+static unsigned sched_post_select(struct sched *s)
{
struct task *t, *tmp;
+ unsigned num_running_tasks = 0;
- list_for_each_entry_safe(t, tmp, &s->post_select_list, post_select_node) {
- if (t->error >= 0)
- call_post_select(s, t);
-// PARA_INFO_LOG("%s: %d\n", t->status, t->ret);
- t->notification = 0;
- if (t->error >= 0)
- continue;
- unregister_task(t);
+ list_for_each_entry_safe(t, tmp, &s->task_list, node) {
+ if (t->status == TS_DEAD) /* task has been reaped */
+ unlink_and_free_task(t);
+ else if (t->status == TS_RUNNING) {
+ call_post_select(s, t); /* sets t->status */
+ t->notification = 0;
+ if (t->status == TS_RUNNING)
+ num_running_tasks++;
+ }
}
+ return num_running_tasks;
}
/**
- * The core function for all paraslash programs.
+ * The core function of all paraslash programs.
*
* \param s Pointer to the scheduler struct.
*
* the fd sets of \a s. Next, it calls para_select() and makes the result available
* to the registered tasks by calling their post_select hook.
*
- * \return Zero if no more tasks are left in either of the two lists, negative
- * if para_select returned an error.
+ * \return Zero if no more tasks are left in the task list, negative if the
+ * select function returned an error.
*
- * \sa task, now.
+ * \sa \ref now.
*/
int schedule(struct sched *s)
{
int ret;
+ unsigned num_running_tasks;
if (!s->select_function)
s->select_function = para_select;
FD_ZERO(&s->wfds);
s->select_timeout = s->default_timeout;
s->max_fileno = -1;
- clock_get_realtime(now);
+ clock_get_realtime(&now_struct);
sched_preselect(s);
ret = s->select_function(s->max_fileno + 1, &s->rfds, &s->wfds,
&s->select_timeout);
FD_ZERO(&s->rfds);
FD_ZERO(&s->wfds);
}
- clock_get_realtime(now);
- sched_post_select(s);
- if (list_empty(&s->pre_select_list) && list_empty(&s->post_select_list))
+ clock_get_realtime(&now_struct);
+ num_running_tasks = sched_post_select(s);
+ if (num_running_tasks == 0)
return 0;
goto again;
}
/**
- * Add a task to the scheduler.
+ * Obtain the error status of a task and deallocate its resources.
*
- * \param t The task to add.
- * \param s The scheduler instance to add the task to.
+ * \param tptr Identifies the task to reap.
*
- * If the pre_select pointer of \a t is not \p NULL, it is added to
- * the pre_select list of the scheduler. Same goes for post_select.
+ * This function is similar to wait(2) in that it returns information about a
+ * terminated task and allows to release the resources associated with the
+ * task. Until this function is called, the terminated task remains in a zombie
+ * state.
*
- * \sa task::pre_select, task::post_select
+ * \return If \a tptr is \p NULL, or \a *tptr is \p NULL, the function does
+ * nothing and returns zero. Otherwise, it is checked whether the task
+ * identified by \a tptr is still running. If it is, the function returns zero
+ * and again, no action is taken. Otherwise the (negative) error code of the
+ * terminated task is returned and \a *tptr is set to \p NULL. The task will
+ * then be removed removed from the scheduler task list.
+ *
+ * \sa \ref sched_shutdown(), wait(2).
*/
-void register_task(struct sched *s, struct task *t)
+int task_reap(struct task **tptr)
{
- PARA_INFO_LOG("registering %s (%p)\n", t->status, t);
- t->notification = 0;
- if (!s->pre_select_list.next)
- INIT_LIST_HEAD(&s->pre_select_list);
- if (!s->post_select_list.next)
- INIT_LIST_HEAD(&s->post_select_list);
- if (t->pre_select) {
- PARA_DEBUG_LOG("pre_select: %p\n", &t->pre_select);
- list_add_tail(&t->pre_select_node, &s->pre_select_list);
- }
- if (t->post_select) {
- PARA_DEBUG_LOG("post_select: %p\n", &t->post_select);
- list_add_tail(&t->post_select_node, &s->post_select_list);
+ struct task *t;
+ int ret;
+
+ if (!tptr)
+ return 0;
+ t = *tptr;
+ if (!t)
+ return 0;
+ if (t->status >= 0)
+ return 0;
+ ret = t->status;
+ /*
+ * With list_for_each_entry_safe() it is only safe to remove the
+ * _current_ list item. Since we are being called from the loop in
+ * schedule() via some task's ->post_select() function, freeing the
+ * given task here would result in use-after-free bugs in schedule().
+ * So we only set the task status to TS_DEAD which tells schedule() to
+ * free the task in the next iteration of its loop.
+ */
+ t->status = TS_DEAD;
+
+ *tptr = NULL;
+ return ret;
+}
+
+/**
+ * Deallocate all resources of all tasks of a scheduler instance.
+ *
+ * \param s The scheduler instance.
+ *
+ * This should only be called after \ref schedule() has returned.
+ */
+void sched_shutdown(struct sched *s)
+{
+ struct task *t, *tmp;
+
+ list_for_each_entry_safe(t, tmp, &s->task_list, node) {
+ if (t->status == TS_RUNNING)
+ /* The task list should contain only terminated tasks. */
+ PARA_WARNING_LOG("shutting down running task %s\n",
+ t->name);
+ unlink_and_free_task(t);
}
}
+/**
+ * Add a task to the scheduler task list.
+ *
+ * \param info Task information supplied by the caller.
+ * \param s The scheduler instance.
+ *
+ * \return A pointer to a newly allocated task structure. It will be
+ * freed by sched_shutdown().
+ */
+struct task *task_register(struct task_info *info, struct sched *s)
+{
+ struct task *t = para_malloc(sizeof(*t));
+
+ assert(info->post_select);
+
+ if (!s->task_list.next)
+ INIT_LIST_HEAD(&s->task_list);
+
+ t->info = *info;
+ t->name = para_strdup(info->name);
+ t->notification = 0;
+ t->status = TS_RUNNING;
+ list_add_tail(&t->node, &s->task_list);
+ return t;
+}
+
/**
* Get the list of all registered tasks.
*
struct task *t, *tmp;
char *msg = NULL;
- list_for_each_entry_safe(t, tmp, &s->pre_select_list, pre_select_node) {
- char *tmp_msg;
- tmp_msg = make_message("%s%p\tpre\t%s\n", msg? msg : "", t, t->status);
- free(msg);
- msg = tmp_msg;
- }
- list_for_each_entry_safe(t, tmp, &s->post_select_list, post_select_node) {
+ list_for_each_entry_safe(t, tmp, &s->task_list, node) {
char *tmp_msg;
-// if (t->pre_select)
-// continue;
- tmp_msg = make_message("%s%p\tpost\t%s\n", msg? msg : "", t, t->status);
+ tmp_msg = make_message("%s%p\t%s\t%s\n", msg? msg : "", t,
+ t->status == TS_DEAD? "dead" :
+ (t->status == TS_RUNNING? "running" : "zombie"),
+ t->name);
free(msg);
msg = tmp_msg;
}
- //PARA_DEBUG_LOG("task list:\n%s", msg);
return msg;
}
assert(err > 0);
if (t->notification == -err) /* ignore subsequent notifications */
return;
- PARA_INFO_LOG("notifying task %s: %s\n", t->status, para_strerror(err));
+ PARA_INFO_LOG("notifying task %s: %s\n", t->name, para_strerror(err));
t->notification = -err;
}
*
* \sa \ref task_notify().
*/
-int task_get_notification(struct task *t)
+int task_get_notification(const struct task *t)
{
return t->notification;
}
+/**
+ * Return the status value of a task.
+ *
+ * \param t The task to get the status value from.
+ *
+ * \return Zero if task does not exist, one if task is running, negative error
+ * code if task has terminated.
+ */
+int task_status(const struct task *t)
+{
+ if (!t)
+ return 0;
+ if (t->status == TS_DEAD) /* pretend dead tasks don't exist */
+ return 0;
+ if (t->status == TS_RUNNING)
+ return 1;
+ return t->status;
+}
+
/**
* Set the notification value of all tasks of a scheduler instance.
*
{
struct task *t;
- list_for_each_entry(t, &s->pre_select_list, pre_select_node)
- task_notify(t, err);
- list_for_each_entry(t, &s->post_select_list, post_select_node)
+ list_for_each_entry(t, &s->task_list, node)
task_notify(t, err);
}
/**
* Paraslash's scheduler.
*
- * Designed with KISS in mind. It manages two lists of tasks. The pre_select
- * list contains pointers to functions that are called before calling select()
- * from the main loop. Similarly, \a post_select_list is a list of function
- * pointers each of which is called after the select call. Tasks add hooks to
- * these lists by registering themselves to the scheduler.
+ * Designed with KISS in mind. It maintains a list of task structures which is
+ * extended when a new task is registered. Each task may define a pre_select
+ * function which is called from the scheduler main loop before it calls
+ * select(). Similarly, each task must define a post_select function which is
+ * called after the select call.
*/
struct sched {
/** Initial value before any pre_select call. */
int max_fileno;
/** If non-NULL, use this function instead of para_select. */
int (*select_function)(int, fd_set *, fd_set *, struct timeval *);
- /** Currently active pre_select functions. */
- struct list_head pre_select_list;
- /** Currently active post_select functions. */
- struct list_head post_select_list;
+ /** Tasks which have been registered to the scheduler. */
+ struct list_head task_list;
};
-/**
- * Paraslash's task structure.
- *
- * Before registering a task to the scheduler, the task structure must be
- * filled in properly by the caller.
- *
- * \sa \ref sched.
- */
-struct task {
+struct task;
+
+/** Information that must be supplied by callers of \ref task_register(). */
+struct task_info {
+ /** Used for log messages and by \ref get_task_list(). */
+ const char *name;
/**
- * The pre select hook of \a t.
+ * The optional pre select method.
*
* Its purpose is to add file descriptors to the fd sets of the
* scheduler and to decrease the select timeout if necessary.
*/
- void (*pre_select)(struct sched *s, struct task *t);
+ void (*pre_select)(struct sched *s, void *context);
/**
- * The post select hook of \a t.
+ * The mandatory post select method.
*
* Its purpose is to evaluate and act upon the results of the previous
* select call. If this function returns a negative value, the
* scheduler unregisters the task.
*/
- int (*post_select)(struct sched *s, struct task *t);
- /** Whether this task is in error state. */
- int error;
- /** Position of the task in the pre_select list of the scheduler. */
- struct list_head pre_select_node;
- /** Position of the task in the post_select list of the scheduler. */
- struct list_head post_select_node;
- /** Descriptive text and current status of the task. */
- char status[255];
- /** If less than zero, the task was notified by another task. */
- int notification;
+ int (*post_select)(struct sched *s, void *context);
+ /**
+ * This pointer is saved when the task is registered. It is passed to
+ * ->pre_select() and ->post_select(). Usually this is a pointer to the
+ * struct owned by the caller which contains the task pointer.
+ */
+ void *context;
};
/**
* scheduler are allowed to block, this value should be accurate enough so that
* there is no need to call clock_gettime() directly.
*/
-extern struct timeval *now;
+extern const struct timeval *now;
-void register_task(struct sched *s, struct task *t);
+struct task *task_register(struct task_info *info, struct sched *s);
int schedule(struct sched *s);
+void sched_shutdown(struct sched *s);
char *get_task_list(struct sched *s);
void task_notify(struct task *t, int err);
void task_notify_all(struct sched *s, int err);
-int task_get_notification(struct task *t);
+int task_get_notification(const struct task *t);
+int task_status(const struct task *t);
+int task_reap(struct task **tptr);
void sched_min_delay(struct sched *s);
void sched_request_timeout(struct timeval *to, struct sched *s);
void sched_request_timeout_ms(long unsigned ms, struct sched *s);
/** Argument vector passed to para_server's main function. */
char **argv;
/** The command task structure for scheduling. */
- struct task task;
+ struct task *task;
};
static int want_colors(void)
exit(EXIT_FAILURE);
}
-static void signal_pre_select(struct sched *s, struct task *t)
+static void signal_pre_select(struct sched *s, void *context)
{
- struct signal_task *st = container_of(t, struct signal_task, task);
+ struct signal_task *st = context;
para_fd_set(st->fd, &s->rfds, &s->max_fileno);
}
kill(mmd->afs_pid, SIGHUP);
}
-static int signal_post_select(struct sched *s, __a_unused struct task *t)
+static int signal_post_select(struct sched *s, __a_unused void *context)
{
int signum = para_next_signal(&s->rfds);
static struct signal_task signal_task_struct,
*st = &signal_task_struct;
- st->task.pre_select = signal_pre_select;
- st->task.post_select = signal_post_select;
- sprintf(st->task.status, "signal task");
-
PARA_NOTICE_LOG("setting up signal handling\n");
st->fd = para_signal_init(); /* always successful */
para_install_sighandler(SIGINT);
para_install_sighandler(SIGCHLD);
para_sigaction(SIGPIPE, SIG_IGN);
add_close_on_fork_list(st->fd);
- register_task(&sched, &st->task);
+ st->task = task_register(&(struct task_info) {
+ .name = "signal",
+ .pre_select = signal_pre_select,
+ .post_select = signal_post_select,
+ .context = st,
+
+ }, &sched);
}
-static void command_pre_select(struct sched *s, struct task *t)
+static void command_pre_select(struct sched *s, void *context)
{
- struct server_command_task *sct = container_of(t, struct server_command_task, task);
+ struct server_command_task *sct = context;
para_fd_set(sct->listen_fd, &s->rfds, &s->max_fileno);
}
-static int command_post_select(struct sched *s, struct task *t)
+static int command_post_select(struct sched *s, void *context)
{
- struct server_command_task *sct = container_of(t, struct server_command_task, task);
+ struct server_command_task *sct = context;
int new_fd, ret, i;
char *peer_name;
*sct = &server_command_task_struct;
PARA_NOTICE_LOG("initializing tcp command socket\n");
- sct->task.pre_select = command_pre_select;
- sct->task.post_select = command_post_select;
sct->argc = argc;
sct->argv = argv;
ret = para_listen_simple(IPPROTO_TCP, conf.port_arg);
if (ret < 0)
goto err;
add_close_on_fork_list(sct->listen_fd); /* child doesn't need the listener */
- sprintf(sct->task.status, "server command task");
- register_task(&sched, &sct->task);
+ sct->task = task_register(&(struct task_info) {
+ .name = "server command",
+ .pre_select = command_pre_select,
+ .post_select = command_post_select,
+ .context = sct,
+ }, &sched);
return;
err:
PARA_EMERG_LOG("%s\n", para_strerror(-ret));
server_init(argc, argv);
mutex_lock(mmd_mutex);
ret = schedule(&sched);
+ sched_shutdown(&sched);
if (ret < 0) {
PARA_EMERG_LOG("%s\n", para_strerror(-ret));
exit(EXIT_FAILURE);
/** The signal pipe. */
int fd;
/** The associated task structure. */
- struct task task;
+ struct task *task;
};
int para_signal_init(void);
return ret;
}
-static int speexdec_post_select(__a_unused struct sched *s, struct task *t)
+static int speexdec_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct private_spxdec_data *psd = fn->private_data;
struct btr_node *btrn = fn->btrn;
int ret, ns;
#include "buffer_tree.h"
#include "string.h"
-/**
- * The pre_select function of the stdin task.
- *
- * \param s The scheduler this task was registered to.
- * \param t The task structure of the stdin task.
- *
- * This function is always successful. If there is space left in the
- * buffer of the stdin task, it adds \p STDIN_FILENO to the read fd set
- * of \a s.
+/*
+ * If there is space left in the buffer of the stdin task add STDIN_FILENO to
+ * the read fd set of s.
*/
-static void stdin_pre_select(struct sched *s, struct task *t)
+static void stdin_pre_select(struct sched *s, void *context)
{
- struct stdin_task *sit = container_of(t, struct stdin_task, task);
+ struct stdin_task *sit = context;
int ret;
ret = btr_node_status(sit->btrn, 0, BTR_NT_ROOT);
sched_request_timeout_ms(100, s);
}
-/**
- * The post select function of the stdin task.
- *
- * \param s The scheduler this task was registered to.
- * \param t The task structure of the stdin task.
- *
- * This function checks if \p STDIN_FILENO was included by in the read fd set
- * of \a s during the previous pre_select call. If yes, and \p STDIN_FILENO
- * appears to be readable, data is read from stdin and fed into the buffer
- * tree.
+/*
+ * This function checks if STDIN_FILENO was included by in the read fd set of s
+ * during the previous pre_select call. If so, and if STDIN_FILENO is readable,
+ * data is read from stdin and fed into the buffer tree.
*/
-static int stdin_post_select(struct sched *s, struct task *t)
+static int stdin_post_select(struct sched *s, void *context)
{
- struct stdin_task *sit = container_of(t, struct stdin_task, task);
+ struct stdin_task *sit = context;
ssize_t ret;
size_t sz, n;
char *buf = NULL;
}
/**
- * Initialize a stdin task structure with default values.
+ * Register a stdin task structure.
*
- * \param sit The stdin task structure.
+ * \param sit The stdin task structure to register.
+ * \param s The task will be added to this scheduler's task list.
*
- * This fills in the pre/post select function pointers of the task structure
- * given by \a sit and creates a buffer tree for I/O.
+ * This allocates a buffer tree pool for I/O, sets up \a sit and registers a
+ * task with \a sit as context pointer.
*/
-void stdin_set_defaults(struct stdin_task *sit)
+void stdin_task_register(struct stdin_task *sit, struct sched *s)
{
int ret;
+ struct task_info ti = {
+ .name = "stdin",
+ .pre_select = stdin_pre_select,
+ .post_select = stdin_post_select,
+ .context = sit,
+ };
- sit->task.pre_select = stdin_pre_select;
- sit->task.post_select = stdin_post_select;
sit->btrp = btr_pool_new("stdin", 128 * 1024);
- sprintf(sit->task.status, "stdin reader");
/*
* Both STDIN_FILENO and STDOUT_FILENO may refer to the same open file
* description (the terminal), and thus share the same file status
}
sit->fd_flags = ret;
sit->must_set_nonblock_flag = (sit->fd_flags & O_NONBLOCK) == 0;
+ sit->task = task_register(&ti, s);
}
/** The task structure used for reading from stdin. */
struct stdin_task {
/** The task structure. */
- struct task task;
+ struct task *task;
/** Stdin is always the root of a buffer tree. */
struct btr_node *btrn;
/** Use a buffer pool to minimize memcpy due to alignment problems. */
bool must_set_nonblock_flag;
};
-void stdin_set_defaults(struct stdin_task *sit);
+void stdin_task_register(struct stdin_task *sit, struct sched *s);
#include "stdout.h"
#include "buffer_tree.h"
-/**
- * The pre_select function of the stdout task.
- *
- * \param s The scheduler this task was registered to.
- * \param t The task structure of the stdout task.
- *
- * This function is always successful. If there is input data available, it
- * adds \p STDOUT_FILENO to the write fd set of \a s.
- */
-static void stdout_pre_select(struct sched *s, struct task *t)
+/* Add STDOUT_FILENO to the write fd set if there is input data available. */
+static void stdout_pre_select(struct sched *s, void *context)
{
- struct stdout_task *sot = container_of(t, struct stdout_task, task);
+ struct stdout_task *sot = context;
int ret;
ret = btr_node_status(sot->btrn, 0, BTR_NT_LEAF);
sched_min_delay(s);
}
-/**
- * The post select function of the stdout task.
- *
- * \param s The scheduler this task was registered to.
- * \param t The task structure of the stdout task.
- *
- * This function writes input data from the buffer tree to stdout if \p
+/*
+ * This function writes input data from the buffer tree to stdout if
* STDOUT_FILENO is writable.
*/
-static int stdout_post_select(struct sched *s, struct task *t)
+static int stdout_post_select(struct sched *s, void *context)
{
- struct stdout_task *sot = container_of(t, struct stdout_task, task);
+ struct stdout_task *sot = context;
struct btr_node *btrn = sot->btrn;
int ret;
char *buf;
}
return ret;
}
+
/**
- * Initialize a stdout task structure with default values.
+ * Register a stdout task structure.
*
- * \param sot The stdout task structure.
+ * \param sot The stdout task structure to register.
+ * \param s The task will be added to this scheduler's task list.
*
- * This fills in the pre/post select function pointers of the task structure
- * given by \a sot.
+ * This sets up \a sot and registers a task with \a sot as context pointer.
*/
-void stdout_set_defaults(struct stdout_task *sot)
+void stdout_task_register(struct stdout_task *sot, struct sched *s)
{
int ret;
-
- sot->task.pre_select = stdout_pre_select;
- sot->task.post_select = stdout_post_select;
- sprintf(sot->task.status, "stdout");
+ struct task_info ti = {
+ .pre_select = stdout_pre_select,
+ .post_select = stdout_post_select,
+ .context = sot,
+ .name = "stdout",
+ };
/* See stdin.c for details. */
ret = fcntl(STDOUT_FILENO, F_GETFL);
}
sot->fd_flags = ret;
sot->must_set_nonblock_flag = (sot->fd_flags & O_NONBLOCK) == 0;
+ sot->task = task_register(&ti, s);
}
*/
struct stdout_task {
/** The task structure used by the scheduler. */
- struct task task;
+ struct task *task;
/** Stdout is always a leaf node in the buffer tree. */
struct btr_node *btrn;
/** The descriptor flags of STDOUT at startup. */
bool must_set_nonblock_flag;
};
-void stdout_set_defaults(struct stdout_task *sot);
+void stdout_task_register(struct stdout_task *sot, struct sched *s);
return ret;
}
-/**
- * Cut trailing newline.
- *
- * \param buf The string to be chopped.
- *
- * Replace the last character in \p buf by zero if it is equal to
- * the newline character.
- */
-void chop(char *buf)
-{
- int n = strlen(buf);
-
- if (!n)
- return;
- if (buf[n - 1] == '\n')
- buf[n - 1] = '\0';
-}
-
/**
* Get the logname of the current user.
*
__must_check __malloc char *para_strcat(char *a, const char *b);
__must_check __malloc char *para_dirname(const char *name);
__must_check char *para_basename(const char *name);
-void chop(char *buf);
__must_check __malloc char *para_logname(void);
__must_check __malloc char *para_homedir(void);
__malloc char *para_hostname(void);
tv_add(now, &to, &ctx->timeout);
}
-static void sync_pre_select(struct sched *s, struct task *t)
+static void sync_pre_select(struct sched *s, void *context)
{
int ret;
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct sync_filter_context *ctx = fn->private_data;
struct sync_filter_config *sfc = fn->conf;
return NULL;
}
-static int sync_post_select(__a_unused struct sched *s, struct task *t)
+static int sync_post_select(__a_unused struct sched *s, void *context)
{
int ret;
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct sync_filter_context *ctx = fn->private_data;
struct sync_filter_config *sfc = fn->conf;
struct sync_buddy *buddy, *tmp;
#include "net.h"
#include "fd.h"
-static void udp_recv_pre_select(struct sched *s, struct task *t)
+static void udp_recv_pre_select(struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
- if (generic_recv_pre_select(s, t) <= 0)
+ if (generic_recv_pre_select(s, rn) <= 0)
return;
para_fd_set(rn->fd, &s->rfds, &s->max_fileno);
}
return -E_RECV_EOF;
}
-static int udp_recv_post_select(__a_unused struct sched *s, struct task *t)
+static int udp_recv_post_select(__a_unused struct sched *s, void *context)
{
- struct receiver_node *rn = container_of(t, struct receiver_node, task);
+ struct receiver_node *rn = context;
struct btr_node *btrn = rn->btrn;
size_t num_bytes;
struct iovec iov[2];
int ret, readv_ret, iovcnt;
- ret = task_get_notification(t);
+ ret = task_get_notification(rn->task);
if (ret < 0)
goto out;
ret = btr_node_status(btrn, 0, BTR_NT_ROOT);
#include "para.h"
#include "version.h"
-
-/** \file version.h Macros for printing the version string. */
-
#include "git-version.h"
/**
/** The memory mapped audio file. */
char *map;
/** Used by the scheduler. */
- struct task task;
+ struct task *task;
/** Pointer to the header of the mapped audio file. */
char *header_buf;
/** Length of the audio file header. */
mmd->offset = tv2ms(&offset);
}
-/**
+/*
* Compute the timeout for the main select-loop of the scheduler.
*
- * \param s Pointer to the server scheduler.
- * \param t Pointer to the vss task structure.
- *
* Before the timeout is computed, the current vss status flags are evaluated
* and acted upon by calling appropriate functions from the lower layers.
* Possible actions include
* - shutdown of all senders (stop/pause command),
* - reposition the stream (ff/jmp command).
*/
-static void vss_pre_select(struct sched *s, struct task *t)
+static void vss_pre_select(struct sched *s, void *context)
{
int i;
- struct vss_task *vsst = container_of(t, struct vss_task, task);
+ struct vss_task *vsst = context;
if (!vsst->map || vss_next() || vss_paused() || vss_repos()) {
struct fec_client *fc, *tmp;
tv_add(now, &vsst->announce_tv, &vsst->data_send_barrier);
set_eof_barrier(vsst);
mmd->chunks_sent = 0;
- mmd->current_chunk = mmd->repos_request;
+ mmd->current_chunk = afh_get_start_chunk(mmd->repos_request,
+ &mmd->afd.afhi);
mmd->new_vss_status_flags &= ~VSS_REPOS;
set_mmd_offset();
}
}
}
-static int vss_post_select(struct sched *s, struct task *t)
+static int vss_post_select(struct sched *s, void *context)
{
int ret, i;
- struct vss_task *vsst = container_of(t, struct vss_task, task);
+ struct vss_task *vsst = context;
if (mmd->sender_cmd_data.cmd_num >= 0) {
int num = mmd->sender_cmd_data.cmd_num,
conf.autoplay_delay_arg : 0;
vsst->header_interval.tv_sec = 5; /* should this be configurable? */
vsst->afs_socket = afs_socket;
- vsst->task.pre_select = vss_pre_select;
- vsst->task.post_select = vss_post_select;
ms2tv(announce_time, &vsst->announce_tv);
PARA_INFO_LOG("announce timeval: %lums\n", tv2ms(&vsst->announce_tv));
INIT_LIST_HEAD(&fec_client_list);
tv_add(&vsst->autoplay_barrier, &vsst->announce_tv,
&vsst->data_send_barrier);
}
- sprintf(vsst->task.status, "vss task");
- register_task(s, &vsst->task);
+ vsst->task = task_register(&(struct task_info) {
+ .name = "vss task",
+ .pre_select = vss_pre_select,
+ .post_select = vss_post_select,
+ .context = vsst,
+ }, s);
}
*bof = 1;
}
-static void wav_pre_select(struct sched *s, struct task *t)
+static void wav_pre_select(struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
size_t iqs = btr_get_input_queue_size(fn->btrn);
- t->error = 0;
if (iqs == 0)
return;
sched_min_delay(s);
}
-static int wav_post_select(__a_unused struct sched *s, struct task *t)
+static int wav_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
struct btr_node *btrn = fn->btrn;
size_t iqs = btr_get_input_queue_size(btrn);
int ret;
</td>
</tr>
<tr>
- <td>
+ <td valign="top">
<br>
<a href="index.html">Home</a><br>
<a href="FEATURES.html">Features</a><br>
</td>
</tr>
<tr>
- <td>
+ <td valign="top">
<br>
<a href="../../index.html">Home</a><br>
<a href="../../FEATURES.html">Features</a><br>
sudo apt-get install autoconf libssl-dev help2man gengetopt \
libmad0-dev libid3tag0-dev libasound2-dev libvorbis-dev \
libfaad-dev libspeex-dev libFLAC-dev libsamplerate-dev \
- libasound2-dev libao-dev libreadline-dev libncurses-dev
+ libasound2-dev libao-dev libreadline-dev libncurses-dev \
+ libopus-dev
Detailed description: In any case you'll need
The audio format handler code is linked into para_server and executed
via the _add_ command. The same code is also available as a stand-alone
-tool, para_afh, which can be used to print the technical data, the
-chunk table and the meta data of a file.
+tool, para_afh, which prints the technical data, the chunk table
+and the meta data of a file. Moreover, all audio format handlers are
+combined in the afh receiver which is part of para_recv and para_play.
----------
Networking
uint32_t bit_rate;
/** Further decoding information (ignored). */
uint32_t flags1;
- /** Whether to use exp_vlc, bit reservoir, variable block len. */
+ /** Encodes exp_vlc, bit reservoir, vbl, number of block sizes. */
uint16_t flags2;
+ /** Whether exponents are coded with VLC codes. */
+ bool use_exp_vlc;
+ /** If false, a frame is equal to a superframe. */
+ bool use_bit_reservoir;
+ /** Whether blocks are of variable or of constant size. */
+ bool use_variable_block_len;
};
/* wma_common.c */
afhi->frequency = ahi.sample_rate;
afhi->channels = ahi.channels;
afhi->header_len = ahi.header_len;
+
+ afhi->techinfo = make_message("%s%s%s%s%s",
+ ahi.use_exp_vlc? "exp vlc" : "",
+ (ahi.use_bit_reservoir && ahi.use_exp_vlc)? ", " : "",
+ ahi.use_bit_reservoir? "bit reservoir" : "",
+ (ahi.use_variable_block_len &&
+ (ahi.use_exp_vlc || ahi.use_bit_reservoir)? ", " : ""),
+ ahi.use_variable_block_len? "vbl" : ""
+ );
wma_make_chunk_table(map + ahi.header_len, numbytes - ahi.header_len,
ahi.block_align, afhi);
read_asf_tags(map, ahi.header_len, &afhi->tags);
ahi->flags2 = read_u16(start + 60);
PARA_INFO_LOG("read_asf_header: flags1: %d, flag2: %d\n",
ahi->flags1, ahi->flags2);
+ ahi->use_exp_vlc = ahi->flags2 & 0x0001;
+ ahi->use_bit_reservoir = ahi->flags2 & 0x0002;
+ ahi->use_variable_block_len = ahi->flags2 & 0x0004;
return 1;
}
/** Information contained in the audio file header. */
struct asf_header_info ahi;
struct getbit_context gb;
- /** Whether to use the bit reservoir. */
- int use_bit_reservoir;
- /** Whether to use variable block length. */
- int use_variable_block_len;
- /** Whether to use exponent coding. */
- int use_exp_vlc;
/** Whether perceptual noise is added. */
int use_noise_coding;
/** Depends on number of the bits per second and the frame length. */
int byte_offset_bits;
- /** Only used if use_exp_vlc is true. */
+ /** Only used if ahi->use_exp_vlc is true. */
struct vlc exp_vlc;
uint16_t exponent_bands[BLOCK_NB_SIZES][25];
/** The index of the first coef in high band. */
int frame_len;
/** log2 of frame_len. */
int frame_len_bits;
- /** Number of block sizes. */
+ /** Number of block sizes, one if !ahi->use_variable_block_len. */
int nb_block_sizes;
/* block info */
int reset_block_lengths;
for (i = 0; i < pwd->nb_block_sizes; i++)
imdct_end(pwd->mdct_ctx[i]);
- if (pwd->use_exp_vlc)
+ if (pwd->ahi.use_exp_vlc)
free_vlc(&pwd->exp_vlc);
if (pwd->use_noise_coding)
free_vlc(&pwd->hgain_vlc);
else
pwd->frame_len_bits = 11;
pwd->frame_len = 1 << pwd->frame_len_bits;
- if (pwd->use_variable_block_len) {
+ if (pwd->ahi.use_variable_block_len) {
int nb_max, nb;
nb = ((flags2 >> 3) & 3) + 1;
if ((ahi->bit_rate / ahi->channels) >= 32000)
pwd->frame_len, bps, bps1,
high_freq, pwd->byte_offset_bits);
PARA_INFO_LOG("use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\n",
- pwd->use_noise_coding, pwd->use_exp_vlc, pwd->nb_block_sizes);
+ pwd->use_noise_coding, pwd->ahi.use_exp_vlc, pwd->nb_block_sizes);
compute_scale_factor_band_sizes(pwd, high_freq);
/* init MDCT windows : simple sinus window */
if (pwd->use_noise_coding) {
/* init the noise generator */
- if (pwd->use_exp_vlc)
+ if (pwd->ahi.use_exp_vlc)
pwd->noise_mult = 0.02;
else
pwd->noise_mult = 0.04;
return ret;
}
- pwd->use_exp_vlc = pwd->ahi.flags2 & 0x0001;
- pwd->use_bit_reservoir = pwd->ahi.flags2 & 0x0002;
- pwd->use_variable_block_len = pwd->ahi.flags2 & 0x0004;
-
ret = wma_init(pwd);
if (ret < 0)
return ret;
wma_hgain_huffcodes, 2);
}
- if (pwd->use_exp_vlc) {
+ if (pwd->ahi.use_exp_vlc) {
PARA_INFO_LOG("using exp_vlc\n");
init_vlc(&pwd->exp_vlc, EXPVLCBITS, sizeof(wma_scale_huffbits),
wma_scale_huffbits, wma_scale_huffcodes, 4);
int nb_coefs[MAX_CHANNELS];
/* compute current block length */
- if (pwd->use_variable_block_len) {
+ if (pwd->ahi.use_variable_block_len) {
n = wma_log2(pwd->nb_block_sizes - 1) + 1;
if (pwd->reset_block_lengths) {
if ((pwd->block_len_bits == pwd->frame_len_bits) || get_bit(&pwd->gb)) {
for (ch = 0; ch < pwd->ahi.channels; ch++) {
if (pwd->channel_coded[ch]) {
- if (pwd->use_exp_vlc) {
+ if (pwd->ahi.use_exp_vlc) {
ret = decode_exp_vlc(pwd, ch);
if (ret < 0)
return ret;
buf_size = pwd->ahi.block_align;
samples = data;
init_get_bits(&pwd->gb, buf, buf_size);
- if (pwd->use_bit_reservoir) {
+ if (pwd->ahi.use_bit_reservoir) {
int i, nb_frames, bit_offset, pos, len;
uint8_t *q;
#define WMA_OUTPUT_BUFFER_SIZE (128 * 1024)
-static int wmadec_post_select(__a_unused struct sched *s, struct task *t)
+static int wmadec_post_select(__a_unused struct sched *s, void *context)
{
- struct filter_node *fn = container_of(t, struct filter_node, task);
+ struct filter_node *fn = context;
int ret, converted, out_size;
struct private_wmadec_data *pwd = fn->private_data;
struct btr_node *btrn = fn->btrn;
}
struct write_task {
- struct task task;
+ struct task *task;
struct check_wav_context *cwc;
};
-static void write_pre_select(struct sched *s, struct task *t)
+static void write_pre_select(struct sched *s, void *context)
{
- struct write_task *wt = container_of(t, struct write_task, task);
+ struct write_task *wt = context;
check_wav_pre_select(s, wt->cwc);
}
-static int write_post_select(__a_unused struct sched *s, struct task *t)
+static int write_post_select(__a_unused struct sched *s, void *context)
{
- struct write_task *wt = container_of(t, struct write_task, task);
+ struct write_task *wt = context;
return check_wav_post_select(wt->cwc);
}
struct writer_node *wns;
static struct sched s;
struct wav_params wp;
- struct write_task wt = {
- .task = {
- .pre_select = write_pre_select,
- .post_select = write_post_select,
- .status = "write task",
- },
- };
+ struct write_task wt;
sit.btrn = btr_new_node(&(struct btr_node_description)
EMBRACE(.name = "stdin"));
- stdin_set_defaults(&sit);
- register_task(&s, &sit.task);
+ stdin_task_register(&sit, &s);
COPY_WAV_PARMS(&wp, &conf);
wt.cwc = check_wav_init(sit.btrn, NULL, &wp, &cw_btrn);
- register_task(&s, &wt.task);
+ wt.task = task_register(&(struct task_info) {
+ .name = "write",
+ .pre_select = write_pre_select,
+ .post_select = write_post_select,
+ .context = &wt,
+ }, &s);
if (!conf.writer_given) {
wns = para_calloc(sizeof(*wns));
setup_writer_node(NULL, cw_btrn, wns, &s);
s.default_timeout.tv_usec = 50000;
ret = schedule(&s);
if (ret >= 0) {
- int j;
+ int j, ts;
for (j = 0; j < i; j++) {
- struct task *t = &wns[j].task;
- assert(t->error < 0);
- if (t->error != -E_WRITE_COMMON_EOF
- && t->error != -E_BTR_EOF) {
- PARA_ERROR_LOG("%s: %s\n", t->status,
- para_strerror(-t->error));
+ struct writer_node *wn = wns + j;
+ ts = task_status(wn->task);
+ assert(ts < 0);
+ if (ts != -E_WRITE_COMMON_EOF && ts != -E_BTR_EOF) {
+ const char *name = writer_names[wn->writer_num];
+ PARA_ERROR_LOG("%s: %s\n", name,
+ para_strerror(-ts));
if (ret >= 0)
- ret = t->error;
+ ret = ts;
}
}
}
}
free(wns);
check_wav_shutdown(wt.cwc);
+ sched_shutdown(&s);
return ret;
}
/** The buffer tree node associated with this writer node. */
struct btr_node *btrn;
/** The task of this writer node. */
- struct task task;
+ struct task *task;
/** The minimal input queue size (size of one audio sample). */
size_t min_iqs;
};
* This is called from scheduler. It may use the sched pointer to add
* any file descriptors or to decrease the select timeout.
*/
- void (*pre_select)(struct sched *s, struct task *t);
+ void (*pre_select)(struct sched *s, void *context);
/**
* Write audio data.
*
* Called from the post_select function of the writer node's task.
*/
- int (*post_select)(struct sched *s, struct task *t);
+ int (*post_select)(struct sched *s, void *context);
/**
* Close one instance of the writer.
*
struct sched *s)
{
struct writer *w = writers + wn->writer_num;
- char *name = make_message("%s writer", writer_names[wn->writer_num]);
wn->btrn = btr_new_node(&(struct btr_node_description)
- EMBRACE(.name = name, .parent = parent,
+ EMBRACE(.name = writer_names[wn->writer_num], .parent = parent,
.handler = w->execute, .context = wn));
- strcpy(wn->task.status, name);
- free(name);
- wn->task.pre_select = w->pre_select;
- wn->task.post_select = w->post_select;
- register_task(s, &wn->task);
+ wn->task = task_register(&(struct task_info) {
+ .name = writer_names[wn->writer_num],
+ .pre_select = w->pre_select,
+ .post_select = w->post_select,
+ .context = wn,
+ }, s);
}
/**
projects / paraslash.git / commitdiff