/** \file audiod.c the paraslash's audio daemon */
-#include <sys/time.h> /* gettimeofday */
#include "para.h"
#include "audiod.cmdline.h"
static char *stat_item_values[NUM_STAT_ITEMS];
static FILE *logfile;
static const struct timeval restart_delay = {0, 300 * 1000};
-
static struct audio_format_info afi[NUM_AUDIO_FORMATS];
+static struct timeval *now;
static struct signal_task signal_task_struct, *sig_task = &signal_task_struct;
static char *get_time_string(struct timeval *newest_stime)
{
- struct timeval now, diff, adj_stream_start, tmp;
+ struct timeval diff, adj_stream_start, tmp;
int total = 0, use_server_time = 1;
if (!playing) {
use_server_time = 0;
}
}
- gettimeofday(&now, NULL);
- tv_diff(&now, &tmp, &diff);
+ tv_diff(now, &tmp, &diff);
total = diff.tv_sec + offset_seconds;
if (total > length_seconds)
total = length_seconds;
s->format = -1;
}
-static void set_restart_barrier(int format, struct timeval *now)
-{
- struct timeval tmp;
-
- if (now)
- tmp = *now;
- else
- gettimeofday(&tmp, NULL);
- tv_add(&tmp, &restart_delay, &afi[format].restart_barrier);
-}
-
static void close_receiver(int slot_num)
{
struct slot_info *s = &slot[slot_num];
if (s->format < 0 || !s->receiver_node)
return;
a = &afi[s->format];
- PARA_NOTICE_LOG("closing %s recevier in slot %d (eof = %d)\n",
+ PARA_NOTICE_LOG("closing %s receiver in slot %d (eof = %d)\n",
audio_formats[s->format] , slot_num, s->receiver_node->eof);
if (!s->receiver_node->eof)
unregister_task(&s->receiver_node->task);
a->receiver->close(s->receiver_node);
free(s->receiver_node);
s->receiver_node = NULL;
- set_restart_barrier(s->format, NULL);
+ /* set restart barrier */
+ tv_add(now, &restart_delay, &afi[s->format].restart_barrier);
}
static void kill_all_decoders(void)
}
}
-static void check_sigchld(void)
-{
- pid_t pid;
- struct timeval now;
- gettimeofday(&now, NULL);
-
-reap_next_child:
- pid = para_reap_child();
- if (pid <= 0)
- return;
- PARA_CRIT_LOG("para_client died (pid %d)\n", pid);
- goto reap_next_child;
-}
-
static int get_empty_slot(void)
{
int i;
clear_slot(i);
return i;
}
- if (s->wng)
- continue;
- if (s->receiver_node)
- continue;
- if (s->fc)
+ if (s->wng || s->receiver_node || s->fc)
continue;
clear_slot(i);
return i;
offset_seconds = 0;
audiod_status_dump();
playing = 0;
- stat_item_values[SI_STATUS_BAR] = make_message("%s:no connection to para_server\n",
+ stat_item_values[SI_STATUS_BAR] = make_message(
+ "%s:no connection to para_server\n",
status_item_list[SI_STATUS_BAR]);
stat_client_write(stat_item_values[SI_STATUS_BAR], SI_STATUS_BAR);
}
exit(status);
}
-/** get the number of filters for the given audio format */
+/**
+ * get the number of filters
+ *
+ * \param audio_format_num the number identifying the audio format
+ *
+ * \return the number of filters for the given audio format
+ *
+ * \sa struct filter;
+ */
int num_filters(int audio_format_num)
{
return afi[audio_format_num].num_filters;
}
-void filter_event_handler(struct task *t)
+static void filter_event_handler(struct task *t)
{
PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
unregister_task(t);
}
}
-static void open_writer(int slot_num, struct timeval *now)
+static void open_writer(int slot_num)
{
int ret, i;
struct slot_info *s = &slot[slot_num];
for (i = 0; i < a->num_writers; i++) {
s->wng->writer_nodes[i].conf = a->writer_conf[i];
s->wng->writer_nodes[i].writer = a->writers[i];
- sprintf(s->wng->writer_nodes[i].task.status, "writer_ node");
+ sprintf(s->wng->writer_nodes[i].task.status, "writer_node");
}
ret = wng_open(s->wng);
s->wstime = *now;
activate_inactive_grab_clients(slot_num, s->format, &s->fc->filters);
}
-void rn_event_handler(struct task *t)
+static void rn_event_handler(struct task *t)
{
// struct receiver_node *rn = t->private_data;
PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
unregister_task(t);
}
+
static void open_receiver(int format)
{
struct audio_format_info *a = &afi[format];
clean_exit(EXIT_FAILURE, PARA_STRERROR(-slot_num));
s = &slot[slot_num];
s->format = format;
- gettimeofday(&s->rtime, NULL);
+ s->rtime = *now;
s->wtime = s->rtime;
s->receiver_node = para_calloc(sizeof(struct receiver_node));
rn = s->receiver_node;
register_task(&rn->task);
}
-static int is_frozen(int format, struct timeval *now)
+static int is_frozen(int format)
{
struct audio_format_info *a = &afi[format];
return (tv_diff(now, &a->restart_barrier, NULL) > 0)? 0 : 1;
}
-static void start_current_receiver(struct timeval *now)
+static void open_current_receiver(void)
{
int i;
i = get_audio_format_num(af_status);
if (i < 0)
return;
- if ((decoder_running(i) & 1) || is_frozen(i, now))
+ if (decoder_running(i) || is_frozen(i))
return;
open_receiver(i);
}
static void compute_time_diff(const struct timeval *status_time)
{
- struct timeval now, tmp, diff;
+ struct timeval tmp, diff;
static int count;
int sign;
const struct timeval max_deviation = {0, 500 * 1000};
const int time_smooth = 5;
- gettimeofday(&now, NULL);
- sign = tv_diff(status_time, &now, &diff);
+ sign = tv_diff(status_time, now, &diff);
// PARA_NOTICE_LOG("%s: sign = %i, sa_time_diff_sign = %i\n", __func__,
// sign, sa_time_diff_sign);
if (!count) {
{
switch (sig) {
case SIGCHLD:
- return check_sigchld();
+ for (;;) {
+ pid_t pid = para_reap_child();
+ if (pid <= 0)
+ return;
+ PARA_CRIT_LOG("para_client died (pid %d)\n", pid);
+ }
case SIGINT:
case SIGTERM:
case SIGHUP:
static void check_timeouts(void)
{
- struct timeval now;
+
int slot_num, timeout = conf.stream_timeout_arg;
- gettimeofday(&now, NULL);
FOR_EACH_SLOT(slot_num) {
struct slot_info *s = &slot[slot_num];
if (s->format < 0)
continue;
/* check read time */
if (s->receiver_node &&
- now.tv_sec > s->rtime.tv_sec + timeout) {
+ now->tv_sec > s->rtime.tv_sec + timeout) {
PARA_INFO_LOG("%s stream (slot %d) not ready\n",
audio_formats[s->format], slot_num);
s->receiver_node->eof = 1;
{
int i;
+ now = &s->now;
if (audiod_status != AUDIOD_ON)
kill_all_decoders();
else if (playing)
- start_current_receiver(&s->now);
+ open_current_receiver();
check_timeouts();
FOR_EACH_SLOT(i) {
struct receiver_node *rn;
rn = slot[i].receiver_node;
if (rn && rn->loaded && !slot[i].wng) {
open_filters(i);
- open_writer(i, &s->now);
+ open_writer(i);
}
}
}
{
int i;
+ now = &s->now;
FOR_EACH_SLOT(i) {
struct receiver_node *rn = slot[i].receiver_node;
if (rn && rn->loaded)
- slot[i].rtime = s->now;
+ slot[i].rtime = *now;
}
}
return filter_num;
}
-static int setup_default_filters(void)
-{
- int i, ret = 1;
-
- FOR_EACH_AUDIO_FORMAT(i) {
- struct audio_format_info *a = &afi[i];
- char *tmp;
- int j;
- if (a->num_filters)
- continue;
- /* add "dec" to audio format name */
- tmp = make_message("%sdec", audio_formats[i]);
- for (j = 0; filters[j].name; j++)
- if (!strcmp(tmp, filters[j].name))
- break;
- free(tmp);
- ret = -E_UNSUPPORTED_FILTER;
- if (!filters[j].name)
- goto out;
- tmp = para_strdup(filters[j].name);
- ret = add_filter(i, tmp);
- free(tmp);
- if (ret < 0)
- goto out;
- PARA_INFO_LOG("%s -> default filter: %s\n", audio_formats[i],
- filters[j].name);
- ret = add_filter(i, "wav");
- if (ret < 0)
- goto out;
- PARA_INFO_LOG("%s -> default filter: wav\n", audio_formats[i]);
- }
-out:
- return ret;
-}
-
-static int init_stream_io(void)
+static int init_writers(void)
{
- int i, ret, receiver_num, nf, nw;
+ int i, ret, nw;
char *cmd;
struct audio_format_info *a;
init_supported_writers();
nw = PARA_MAX(1, conf.writer_given);
- PARA_INFO_LOG("allocating space for %d writers\n", nw);
+ PARA_INFO_LOG("maximal number of writers: %d\n", nw);
FOR_EACH_AUDIO_FORMAT(i) {
a = &afi[i];
a->writer_conf = para_malloc(nw * sizeof(void *));
ret = writer_num;
goto out;
}
- a->writers[nw] = &writers[ret];
+ a->writers[nw] = &writers[writer_num];
a->writer_conf[nw] = wconf;
PARA_INFO_LOG("%s writer #%d: %s\n", audio_formats[ret],
nw, writer_names[writer_num]);
a->num_writers++;
}
+ ret = 1;
+out:
+ return ret;
+}
+
+static int init_receivers(void)
+{
+ int i, ret, receiver_num;
+ char *cmd = NULL;
+ struct audio_format_info *a;
+
for (i = 0; receivers[i].name; i++) {
PARA_INFO_LOG("initializing %s receiver\n", receivers[i].name);
receivers[i].init(&receivers[i]);
return -E_RECV_SYNTAX;
a->receiver = &receivers[receiver_num];
}
+ ret = 1;
+out:
free(cmd);
- /* filters */
+ return ret;
+}
+
+static int init_default_filters(void)
+{
+ int i, ret = 1;
+
+ FOR_EACH_AUDIO_FORMAT(i) {
+ struct audio_format_info *a = &afi[i];
+ char *tmp;
+ int j;
+
+ if (a->num_filters)
+ continue; /* no default -- nothing to to */
+ /* add "dec" to audio format name */
+ tmp = make_message("%sdec", audio_formats[i]);
+ for (j = 0; filters[j].name; j++)
+ if (!strcmp(tmp, filters[j].name))
+ break;
+ free(tmp);
+ ret = -E_UNSUPPORTED_FILTER;
+ if (!filters[j].name)
+ goto out;
+ tmp = para_strdup(filters[j].name);
+ ret = add_filter(i, tmp);
+ free(tmp);
+ if (ret < 0)
+ goto out;
+ PARA_INFO_LOG("%s -> default filter: %s\n", audio_formats[i],
+ filters[j].name);
+ }
+out:
+ return ret;
+}
+
+static int init_filters(void)
+{
+ int i, ret, nf;
+
filter_init(filters);
- nf = PARA_MAX(2, conf.filter_given) + 1;
- PARA_INFO_LOG("allocating space for %d filters\n", nf);
+ nf = PARA_MAX(1, conf.filter_given);
+ PARA_INFO_LOG("maximal number of filters: %d\n", nf);
FOR_EACH_AUDIO_FORMAT(i) {
afi[i].filter_conf = para_malloc(nf * sizeof(void *));
afi[i].filters = para_malloc(nf * sizeof(struct filter *));
}
if (!conf.no_default_filters_given)
- return setup_default_filters();
+ return init_default_filters();
for (i = 0; i < conf.filter_given; i++) {
char *arg = conf.filter_arg[i];
char *filter_name = strchr(arg, ':');
if (ret < 0)
goto out;
}
- ret = 1;
+ ret = init_default_filters(); /* use default values for the rest */
out:
return ret;
}
+static int init_stream_io(void)
+{
+ int ret;
+
+ ret = init_writers();
+ if (ret < 0)
+ return ret;
+ ret = init_receivers();
+ if (ret < 0)
+ return ret;
+ ret = init_filters();
+ if (ret < 0)
+ return ret;
+ return 1;
+}
+
static int dump_commands(int fd)
{
char *buf = para_strdup(""), *tmp = NULL;
PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
}
-void init_command_task(struct command_task *ct)
+static void init_command_task(struct command_task *ct)
{
ct->task.pre_select = command_pre_select;
ct->task.post_select = command_post_select;
if (ret <= 0) {
close_stat_pipe();
/* avoid busy loop if server is down */
- while (sleep(1) > 0)
+ while (sleep(1) > 0) /* FIXME */
; /* try again*/
} else {
st->buf[ret + st->loaded] = '\0';
projects / paraslash.git / blobdiff