-/*
- * Copyright (C) 2012 Andre Noll <maan@tuebingen.mpg.de>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
+/* Copyright (C) 2012 Andre Noll <maan@tuebingen.mpg.de>, see file COPYING. */
/** \file play.c Paraslash's standalone player. */
#include <lopsub.h>
#include "recv_cmd.lsg.h"
+#include "filter_cmd.lsg.h"
#include "play_cmd.lsg.h"
#include "write_cmd.lsg.h"
#include "play.lsg.h"
#include "para.h"
+#include "lsu.h"
#include "list.h"
#include "error.h"
#include "buffer_tree.h"
#include "write.h"
#include "fd.h"
-/**
- * Besides playback tasks which correspond to the receiver/filter/writer nodes,
- * para_play creates two further tasks: The play task and the i9e task. It is
- * important whether a function can be called in the context of para_play or
- * i9e or both. As a rule, all command handlers are called only in i9e context via
- * the line handler (input mode) or the key handler (command mode) below.
- *
- * Playlist handling is done exclusively in play context.
- */
-
/** Array of error strings. */
DEFINE_PARA_ERRLIST;
* Describes a request to change the state of para_play.
*
* There is only one variable of this type: \a rq of the global play task
- * structure. Command handlers only set this variable and the post_select()
+ * structure. Command handlers only set this variable and the post_monitor()
* function of the play task investigates its value during each iteration of
* the scheduler run and performs the actual work.
*/
struct play_command_info {
play_cmd_handler_t handler;
};
-#define EXPORT_PLAY_CMD_HANDLER(_cmd) \
- const struct play_command_info lsg_play_cmd_com_ ## _cmd ## _user_data = { \
- .handler = com_ ## _cmd \
- };
static int loglevel = LL_WARNING;
char *stat_item_values[NUM_STAT_ITEMS] = {NULL};
-static struct sched sched = {.max_fileno = 0};
+static struct sched sched;
static struct play_task play_task, *pt = &play_task;
#define AFH_RECV_CMD (lls_cmd(LSG_RECV_CMD_CMD_AFH, recv_cmd_suite))
if (OPT_GIVEN(DETAILED_HELP))
help = lls_long_help(CMD_PTR);
- else if (OPT_GIVEN(HELP))
+ else if (OPT_GIVEN(HELP) || lls_num_inputs(play_lpr) == 0)
help = lls_short_help(CMD_PTR);
else
return;
static void parse_config_or_die(int argc, char *argv[])
{
- const struct lls_command *cmd = CMD_PTR;
- int i, ret, cf_argc;
- char *cf, *errctx, **cf_argv;
- struct lls_parse_result *cf_lpr, *merged_lpr;
+ int i, ret;
unsigned num_kmas;
- void *map;
- size_t sz;
+ char *errctx;
- ret = lls(lls_parse(argc, argv, cmd, &play_lpr, &errctx));
- if (ret < 0)
- goto fail;
+ ret = lls(lls_parse(argc, argv, CMD_PTR, &play_lpr, &errctx));
+ if (ret < 0) {
+ if (errctx)
+ PARA_EMERG_LOG("%s\n", errctx);
+ free(errctx);
+ PARA_EMERG_LOG("failed to parse command line options: %s\n",
+ para_strerror(-ret));
+ exit(EXIT_FAILURE);
+ }
loglevel = OPT_UINT32_VAL(LOGLEVEL);
version_handle_flag("play", OPT_GIVEN(VERSION));
- handle_help_flags();
- if (OPT_GIVEN(CONFIG_FILE))
- cf = para_strdup(OPT_STRING_VAL(CONFIG_FILE));
- else {
- char *home = para_homedir();
- cf = make_message("%s/.paraslash/play.conf", home);
- free(home);
- }
- ret = mmap_full_file(cf, O_RDONLY, &map, &sz, NULL);
+ handle_help_flags(); /* also handles the zero-arg case */
+ ret = lsu_merge_config_file_options(OPT_STRING_VAL(CONFIG_FILE),
+ "play.conf", &play_lpr, CMD_PTR, play_suite, 0 /* flags */);
if (ret < 0) {
- if (ret != -E_EMPTY && ret != -ERRNO_TO_PARA_ERROR(ENOENT))
- goto free_cf;
- if (ret == -ERRNO_TO_PARA_ERROR(ENOENT) && OPT_GIVEN(CONFIG_FILE))
- goto free_cf;
- ret = 0;
- goto free_cf;
+ PARA_EMERG_LOG("failed to parse config file: %s\n",
+ para_strerror(-ret));
+ exit(EXIT_FAILURE);
}
- ret = lls(lls_convert_config(map, sz, NULL, &cf_argv, &errctx));
- para_munmap(map, sz);
- if (ret < 0)
- goto free_cf;
- cf_argc = ret;
- ret = lls(lls_parse(cf_argc, cf_argv, cmd, &cf_lpr, &errctx));
- lls_free_argv(cf_argv);
- if (ret < 0)
- goto free_cf;
- ret = lls(lls_merge(play_lpr, cf_lpr, cmd, &merged_lpr, &errctx));
- lls_free_parse_result(cf_lpr, cmd);
- if (ret < 0)
- goto free_cf;
- lls_free_parse_result(play_lpr, cmd);
- play_lpr = merged_lpr;
loglevel = OPT_UINT32_VAL(LOGLEVEL);
-
- ret = lls(lls_check_arg_count(play_lpr, 1, INT_MAX, &errctx));
- if (ret < 0)
- goto free_cf;
num_kmas = OPT_GIVEN(KEY_MAP);
for (i = 0; i < num_kmas; i++) {
const char *kma = lls_string_val(i, OPT_RESULT(KEY_MAP));
if (*kma && strchr(kma + 1, ':'))
continue;
PARA_EMERG_LOG("invalid key map arg: %s\n", kma);
- goto free_cf;
+ exit(EXIT_FAILURE);
}
- ret = 1;
-free_cf:
- free(cf);
- if (ret >= 0)
- return;
- lls_free_parse_result(play_lpr, cmd);
-fail:
- if (errctx)
- PARA_EMERG_LOG("%s\n", errctx);
- free(errctx);
- PARA_EMERG_LOG("%s\n", para_strerror(-ret));
- exit(EXIT_FAILURE);
}
static char get_playback_state(void)
assert(false);
};
+/* returns number of milliseconds */
static long unsigned get_play_time(void)
{
char state = get_playback_state();
return 0;
if (pt->num_chunks == 0 || pt->seconds == 0)
return 0;
- /* where the stream started (in seconds) */
- result = pt->start_chunk * pt->seconds / pt->num_chunks;
+ /* where the stream started (in milliseconds) */
+ result = 1000ULL * pt->start_chunk * pt->seconds / pt->num_chunks;
if (pt->wn.btrn) { /* Add the uptime of the writer node */
struct timeval diff = {.tv_sec = 0}, wstime;
btr_get_node_start(pt->wn.btrn, &wstime);
if (wstime.tv_sec > 0)
tv_diff(now, &wstime, &diff);
- result += diff.tv_sec;
+ result += tv2ms(&diff);
}
- result = PARA_MIN(result, pt->seconds);
+ result = PARA_MIN(result, pt->seconds * 1000);
result = PARA_MAX(result, 0UL);
return result;
}
-
static void wipe_receiver_node(void)
{
PARA_NOTICE_LOG("cleaning up receiver node\n");
return 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 (err == -E_EOF)
return 1;
return err;
}
if (decoder->close)
decoder->close(&pt->fn);
btr_remove_node(&pt->fn.btrn);
+ lls_free_parse_result(pt->fn.lpr, FILTER_CMD(pt->fn.filter_num));
free(pt->fn.conf);
memset(&pt->fn, 0, sizeof(struct filter_node));
static void init_shuffle_map(void)
{
unsigned n, num_inputs = lls_num_inputs(play_lpr);
- shuffle_map = para_malloc(num_inputs * sizeof(unsigned));
+ shuffle_map = arr_alloc(num_inputs, sizeof(unsigned));
for (n = 0; n < num_inputs; n++)
shuffle_map[n] = n;
if (!OPT_GIVEN(RANDOMIZE))
pt->rn.task = task_register(
&(struct task_info) {
.name = lls_command_name(AFH_RECV_CMD),
- .pre_select = AFH_RECV->pre_select,
- .post_select = AFH_RECV->post_select,
+ .pre_monitor = AFH_RECV->pre_monitor,
+ .post_monitor = AFH_RECV->post_monitor,
.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,
+ .pre_monitor = decoder->pre_monitor,
+ .post_monitor = decoder->post_monitor,
.context = &pt->fn
}, &sched);
register_writer_node(&pt->wn, pt->fn.btrn, &sched);
int i, j = pt->current_file;
unsigned num_inputs = lls_num_inputs(play_lpr);
+ if (j == num_inputs - 1) {
+ switch (OPT_UINT32_VAL(END_OF_PLAYLIST)) {
+ case EOP_LOOP: break;
+ case EOP_STOP:
+ pt->playing = false;
+ return 0;
+ case EOP_QUIT: return -E_EOP;
+ }
+ }
for (i = 0; i < num_inputs; i++) {
j = (j + 1) % num_inputs;
if (!pt->invalid[j])
if (!p)
return NULL;
len = p - kma;
- result = para_malloc(len + 1);
+ result = alloc(len + 1);
memcpy(result, kma, len);
result[len] = '\0';
return result;
if (len == 1 && isprint(*seq))
return seq;
- sseq = para_malloc(2 + 2 * len + 1);
+ sseq = alloc(2 + 2 * len + 1);
sseq[0] = '0';
sseq[1] = 'x';
for (n = 0; n < len; n++) {
char **result;
int i;
- result = para_malloc((NUM_MAPPED_KEYS + 1) * sizeof(char *));
+ result = arr_alloc(NUM_MAPPED_KEYS + 1, sizeof(char *));
FOR_EACH_MAPPED_KEY(i) {
char *seq = get_key_map_seq(i);
result[i] = seq;
I9E_DUMMY_COMPLETER(ff);
static void help_completer(struct i9e_completion_info *ci,
- struct i9e_completion_result *result)
+ struct i9e_completion_result *cr)
{
- result->matches = i9e_complete_commands(ci->word, pp_completers);
+ char *opts[] = {LSG_PLAY_CMD_HELP_OPTS, NULL};
+
+ if (ci->word[0] == '-') {
+ i9e_complete_option(opts, ci, cr);
+ return;
+ }
+ cr->matches = i9e_complete_commands(ci->word, pp_completers);
}
static struct i9e_completer pp_completers[] = {
btr_remove_node(&pt->btrn);
}
+#define EXPORT_PLAY_CMD_HANDLER(_cmd) \
+ const struct play_command_info lsg_play_cmd_com_ ## _cmd ## _user_data = { \
+ .handler = com_ ## _cmd \
+ };
+
static int com_quit(__a_unused struct lls_parse_result *lpr)
{
pt->rq = CRT_TERM_RQ;
static int com_help(struct lls_parse_result *lpr)
{
- int i, ret;
- char *buf, *errctx;
+ int i;
+ char *buf;
size_t sz;
- const struct lls_command *cmd;
+ unsigned n;
+ const struct lls_opt_result *r =
+ lls_opt_result(LSG_PLAY_CMD_HELP_OPT_LONG, lpr);
+ bool long_help = lls_opt_given(r);
- ret = lls(lls_check_arg_count(lpr, 0, 1, &errctx));
- if (ret < 0) {
- if (errctx)
- PARA_ERROR_LOG("%s\n", errctx);
- free(errctx);
- return ret;
- }
- if (lls_num_inputs(lpr) == 0) {
- if (pt->background) {
- for (i = 1; (cmd = lls_cmd(i, play_cmd_suite)); i++) {
- sz = xasprintf(&buf, "%s\t%s\n",
- lls_command_name(cmd), lls_purpose(cmd));
- btr_add_output(buf, sz, pt->btrn);
- }
- return 0;
- }
+ if (!pt->background) {
FOR_EACH_MAPPED_KEY(i) {
bool internal = is_internal_key(i);
int idx = get_key_map_idx(i);
}
return 0;
}
- ret = lls(lls_lookup_subcmd(lls_input(0, lpr), play_cmd_suite,
- &errctx));
- if (ret < 0) {
- if (errctx)
- PARA_ERROR_LOG("%s\n", errctx);
- free(errctx);
- return ret;
- }
- cmd = lls_cmd(ret, play_cmd_suite);
- buf = lls_long_help(cmd);
- assert(buf);
- btr_add_output(buf, strlen(buf), pt->btrn);
+ lsu_com_help(long_help, lpr, play_cmd_suite, NULL, &buf, &n);
+ btr_add_output(buf, n, pt->btrn);
return 0;
}
EXPORT_PLAY_CMD_HANDLER(help);
static int com_pause(__a_unused struct lls_parse_result *lpr)
{
char state;
- long unsigned seconds, ss;
+ uint64_t ms;
+ unsigned long cn; /* chunk num */
state = get_playback_state();
pt->playing = false;
if (state != 'P')
return 0;
- seconds = get_play_time();
+ ms = get_play_time();
pt->playing = false;
- ss = 0;
+ cn = 0;
if (pt->seconds > 0)
- ss = seconds * pt->num_chunks / pt->seconds + 1;
- ss = PARA_MAX(ss, 0UL);
- ss = PARA_MIN(ss, pt->num_chunks);
- pt->start_chunk = ss;
+ cn = ms * pt->num_chunks / pt->seconds / 1000 + 1;
+ cn = PARA_MIN(cn, pt->num_chunks);
+ pt->start_chunk = cn;
+ pt->rq = CRT_REPOS;
kill_stream();
return 0;
}
return ret;
if (pt->playing && !pt->fn.btrn)
return 0;
- seconds += get_play_time();
+ seconds += (get_play_time() + 500) / 1000;
seconds = PARA_MIN(seconds, (typeof(seconds))pt->seconds - 4);
seconds = PARA_MAX(seconds, 0);
pt->start_chunk = pt->num_chunks * seconds / pt->seconds;
history_file = para_strdup(OPT_STRING_VAL(HISTORY_FILE));
else {
char *home = para_homedir();
- history_file = make_message("%s/.paraslash/play.history",
- home);
+ char *dot_para = make_message("%s/.paraslash", home);
+
free(home);
+ ret = para_mkdir(dot_para);
+ /* warn, but otherwise ignore mkdir error */
+ if (ret < 0)
+ PARA_WARNING_LOG("Can not create %s: %s\n", dot_para,
+ para_strerror(-ret));
+ history_file = make_message("%s/play.history", dot_para);
+ free(dot_para);
}
ici.history_file = history_file;
ici.loglevel = loglevel;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
sigaction(SIGWINCH, &act, NULL);
- sched.select_function = i9e_select;
+ sched.poll_function = i9e_poll;
ici.bound_keyseqs = get_mapped_keyseqs();
pt->btrn = ici.producer = btr_new_node(&(struct btr_node_description)
if (btr_get_input_queue_size(pt->btrn) > 0)
return;
}
- ie9_print_status_bar(str, len);
+ i9e_print_status_bar(str, len);
}
/*
* If we are about to die we must call i9e_close() to reset the terminal.
* However, i9e_close() must be called in *this* context, i.e. from
- * play_task.post_select() rather than from i9e_post_select(), because
+ * play_task.post_monitor() rather than from i9e_post_monitor(), because
* otherwise i9e would access freed memory upon return. So the play task must
* stay alive until the i9e task terminates.
*
* We achieve this by sending a fake SIGTERM signal via i9e_signal_dispatch()
- * and reschedule. In the next iteration, i9e->post_select returns an error and
+ * and reschedule. In the next iteration, i9e->post_monitor returns an error and
* 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)
+static int session_post_monitor(__a_unused struct sched *s)
{
int ret;
#else /* HAVE_READLINE */
-static int session_post_select(struct sched *s)
+static int session_post_monitor(struct sched *s)
{
char c;
- if (!FD_ISSET(STDIN_FILENO, &s->rfds))
+ if (!sched_read_ok(STDIN_FILENO, s))
return 0;
if (read(STDIN_FILENO, &c, 1))
do_nothing;
}
#endif /* HAVE_READLINE */
-static void play_pre_select(struct sched *s, __a_unused void *context)
+static void play_pre_monitor(struct sched *s, __a_unused void *context)
{
char state;
- para_fd_set(STDIN_FILENO, &s->rfds, &s->max_fileno);
+ sched_monitor_readfd(STDIN_FILENO, s);
state = get_playback_state();
if (state == 'R' || state == 'F' || state == 'X')
return sched_min_delay(s);
length = pt->seconds;
if (length == 0)
return xasprintf(result, "0:00 [0:00] (0%%/0:00)");
- seconds = get_play_time();
+ seconds = (get_play_time() + 500) / 1000;
return xasprintf(result, "#%u: %d:%02d [%d:%02d] (%d%%/%d:%02d) %s",
pt->current_file,
seconds / 60,
);
}
-static int play_post_select(struct sched *s, __a_unused void *context)
+static int play_post_monitor(struct sched *s, __a_unused void *context)
{
int ret;
pt->rq = CRT_TERM_RQ;
return 0;
}
- ret = session_post_select(s);
+ ret = session_post_monitor(s);
if (ret < 0)
goto out;
if (!pt->wn.btrn && !pt->fn.btrn) {
/**
* The main function of para_play.
*
- * \param argc Standard.
- * \param argv Standard.
+ * \param argc See man page.
+ * \param argv See man page.
+ *
+ * para_play distributes its work by submitting various tasks to the paraslash
+ * scheduler. The receiver, filter and writer tasks, which are used to play an
+ * audio file, require one task each to maintain their underlying buffer tree
+ * node. These tasks only exist when an audio file is playing.
+ *
+ * The i9 task, which is submitted and maintained by the i9e subsystem, reads
+ * an input line and calls the corresponding command handler such as com_stop()
+ * which is implemented in this file. The command handlers typically write a
+ * request to the global play_task structure, whose contents are read and acted
+ * upon by another task, the play task.
*
- * \return \p EXIT_FAILURE or \p EXIT_SUCCESS.
+ * As a rule, playlist handling is performed exclusively in play context, i.e.
+ * in the post-monitor step of the play task, while command handlers are only
+ * called in i9e context.
+ *
+ * \return EXIT_FAILURE or EXIT_SUCCESS.
*/
int main(int argc, char *argv[])
{
int ret;
unsigned num_inputs;
- /* needed this early to make help work */
- recv_init();
-
- sched.default_timeout.tv_sec = 5;
+ sched.default_timeout = 5000;
parse_config_or_die(argc, argv);
- AFH_RECV->init();
session_open();
num_inputs = lls_num_inputs(play_lpr);
init_shuffle_map();
- pt->invalid = para_calloc(sizeof(*pt->invalid) * num_inputs);
+ pt->invalid = arr_zalloc(num_inputs, sizeof(*pt->invalid));
pt->rq = CRT_FILE_CHANGE;
- pt->current_file = num_inputs - 1;
pt->playing = true;
pt->task = task_register(&(struct task_info){
.name = "play",
- .pre_select = play_pre_select,
- .post_select = play_post_select,
+ .pre_monitor = play_pre_monitor,
+ .post_monitor = play_post_monitor,
.context = pt,
}, &sched);
ret = schedule(&sched);
projects / paraslash.git / blobdiff