#include "audiod.cmdline.h"
#include "list.h"
-#include "close_on_fork.h"
#include "sched.h"
#include "recv.h"
#include "filter.h"
#include "grab_client.cmdline.h"
#include "grab_client.h"
-
-#include "error.h"
+#include "client.cmdline.h"
+#include "client.h"
#include "audiod.h"
#include "net.h"
#include "daemon.h"
#include "fd.h"
#include "write.h"
#include "write_common.h"
+#include "error.h"
/** define the array of error lists needed by para_audiod */
INIT_AUDIOD_ERRLISTS;
/** define the array containing all supported audio formats */
-DEFINE_AUDIO_FORMAT_ARRAY;
+const char *audio_formats[] = {AUDIOD_AUDIO_FORMAT_ARRAY NULL};
/** defines how to handle one supported audio format */
struct audio_format_info {
int audiod_status = AUDIOD_ON;
-struct gengetopt_args_info conf;
+struct audiod_args_info conf;
static char *socket_name;
static FILE *logfile;
static struct audio_format_info afi[NUM_AUDIO_FORMATS];
static struct status_task status_task_struct;
struct status_task *stat_task = &status_task_struct;
+static struct timeval initial_delay_barrier;
/**
* the task for handling audiod commands
struct task task;
};
+/**
+ * task for signal handling
+ */
struct signal_task {
+ /** the signal pipe */
int fd;
+ /** the number of the most recent signal */
int signum;
+ /** the associated task structure */
struct task task;
};
PARA_INFO_LOG("signal pipe: fd %d\n", sig_task->fd);
para_install_sighandler(SIGINT);
para_install_sighandler(SIGTERM);
- para_install_sighandler(SIGCHLD);
para_install_sighandler(SIGHUP);
- para_install_sighandler(SIGPIPE);
-// signal(SIGPIPE, SIG_IGN);
+ signal(SIGPIPE, SIG_IGN);
}
static void clear_slot(int slot_num)
{
struct slot_info *s = &slot[slot_num];
struct audio_format_info *a;
- const struct timeval restart_delay = {0, 200 * 1000};
if (s->format < 0 || !s->receiver_node)
return;
a = &afi[s->format];
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 */
- tv_add(now, &restart_delay, &afi[s->format].restart_barrier);
}
static void kill_all_decoders(void)
return -E_NO_MORE_SLOTS;
}
-static int decoder_running(int format)
-{
- int i, ret = 0;
- struct slot_info *s;
-
- FOR_EACH_SLOT(i) {
- s = &slot[i];
- if (s->format == format && s->receiver_node)
- ret |= 1;
- if (s->format == format && s->wng)
- ret |= 2;
- }
- return ret;
-}
-
static void close_stat_pipe(void)
{
int i;
- if (stat_task->fd < 0)
+ if (!stat_task->pcd)
return;
- PARA_NOTICE_LOG("%s", "closing status pipe\n");
- close(stat_task->fd);
- del_close_on_fork_list(stat_task->fd);
- stat_task->fd = -1;
-// kill_all_decoders();
+ client_close(stat_task->pcd);
+ stat_task->pcd = NULL;
for (i = 0; i < NUM_STAT_ITEMS; i++) {
free(stat_task->stat_item_values[i]);
stat_task->stat_item_values[i] = NULL;
stat_task->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_task->stat_item_values[SI_STATUS_BAR], SI_STATUS_BAR);
+ stat_client_write(stat_task->stat_item_values[SI_STATUS_BAR],
+ SI_STATUS_BAR);
+ if (stat_task->clock_diff_count) {
+ stat_task->clock_diff_barrier.tv_sec = now->tv_sec + 1;
+ stat_task->clock_diff_barrier.tv_usec = now->tv_usec;
+ }
}
void __noreturn clean_exit(int status, const char *msg)
PARA_EMERG_LOG("%s\n", msg);
if (socket_name)
unlink(socket_name);
- if (stat_task->fd >= 0)
- close_stat_pipe();
+ close_stat_pipe();
exit(status);
}
static void rn_event_handler(struct task *t)
{
struct receiver_node *rn = t->private_data;
+ const struct timeval restart_delay = {0, 10 * 1000};
+ int i;
PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
unregister_task(t);
rn->eof = 1;
+ /* set restart barrier */
+ FOR_EACH_SLOT(i) {
+ if (slot[i].receiver_node != rn)
+ continue;
+ tv_add(now, &restart_delay, &afi[slot[i].format].restart_barrier);
+ }
}
-static void open_receiver(int format)
+static int open_receiver(int format)
{
struct audio_format_info *a = &afi[format];
struct slot_info *s;
int ret, slot_num;
struct receiver_node *rn;
+ const struct timeval restart_delay = {1, 0};
- slot_num = get_empty_slot();
- if (slot_num < 0)
- clean_exit(EXIT_FAILURE, PARA_STRERROR(-slot_num));
+ ret = get_empty_slot();
+ if (ret < 0)
+ goto err;
+ slot_num = ret;
s = &slot[slot_num];
s->format = format;
s->receiver_node = para_calloc(sizeof(struct receiver_node));
rn->conf = a->receiver_conf;
ret = a->receiver->open(s->receiver_node);
if (ret < 0) {
- PARA_ERROR_LOG("failed to open receiver (%s)\n",
- PARA_STRERROR(-ret));
free(s->receiver_node);
s->receiver_node = NULL;
- return;
+ goto err;
}
PARA_NOTICE_LOG("started %s: %s receiver in slot %d\n",
audio_formats[s->format], a->receiver->name, slot_num);
rn->task.event_handler = rn_event_handler;
sprintf(rn->task.status, "%s receiver node", rn->receiver->name);
register_task(&rn->task);
+ return 1;
+err:
+ PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
+ tv_add(now, &restart_delay, &afi[format].restart_barrier);
+ return ret;
+}
+
+static int receiver_running(int format)
+{
+ int i;
+
+ FOR_EACH_SLOT(i) {
+ struct slot_info *s = &slot[i];
+ if (s->format == format && s->receiver_node
+ && !s->receiver_node->eof)
+ return 1;
+ }
+ return 0;
}
static int open_current_receiver(struct sched *s)
{
int i;
struct timeval diff;
+ char *audio_format = stat_task->stat_item_values[SI_FORMAT];
- if (!stat_task->af_status)
+ if (!audio_format || !stat_task->pcd)
return 0;
- i = get_audio_format_num(stat_task->af_status);
+ i = get_audio_format_num(audio_format + strlen(
+ status_item_list[SI_FORMAT]) + 1);
if (i < 0)
return 0;
- if (decoder_running(i))
+ if (receiver_running(i))
return 0;
if (tv_diff(now, &afi[i].restart_barrier, &diff) < 0) {
s->timeout = diff;
return 0;
}
- open_receiver(i);
- return 1;
+ return open_receiver(i) < 0? 0 : 1;
}
static void compute_time_diff(const struct timeval *status_time)
count > 10? sign : sign * time_smooth, &diff,
&tmp);
stat_task->sa_time_diff = tmp;
- PARA_DEBUG_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
+ PARA_INFO_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
sign > 0? "+" : "-",
tv2ms(&diff),
sa_time_diff_sign ? "+" : "-",
PARA_WARNING_LOG("invalid status line: %s\n", line);
return;
}
+ if (stat_task->clock_diff_count && itemnum != SI_CURRENT_TIME)
+ return;
tmp = make_message("%s\n", line);
stat_client_write(tmp, itemnum);
free(tmp);
case SI_STATUS:
stat_task->playing = strstr(line, "playing")? 1 : 0;
break;
- case SI_FORMAT:
- free(stat_task->af_status);
- stat_task->af_status = para_strdup(line + ilen + 1);
- break;
case SI_OFFSET:
stat_task->offset_seconds = atoi(line + ilen + 1);
break;
break;
case SI_STREAM_START:
if (sscanf(line + ilen + 1, "%lu.%lu", &sec, &usec) == 2) {
+ struct timeval a_start, delay;
+ delay.tv_sec = conf.stream_delay_arg / 1000;
+ delay.tv_usec = (conf.stream_delay_arg % 1000) * 1000;
stat_task->server_stream_start.tv_sec = sec;
stat_task->server_stream_start.tv_usec = usec;
+ if (stat_task->sa_time_diff_sign < 0)
+ tv_add(&stat_task->server_stream_start,
+ &stat_task->sa_time_diff, &a_start);
+ else
+ tv_diff(&stat_task->server_stream_start,
+ &stat_task->sa_time_diff, &a_start);
+ tv_add(&a_start, &delay, &initial_delay_barrier);
}
break;
case SI_CURRENT_TIME:
struct timeval tv = {sec, usec};
compute_time_diff(&tv);
}
+ if (stat_task->clock_diff_count)
+ stat_task->clock_diff_count--;
break;
}
}
static void handle_signal(int sig)
{
switch (sig) {
- case 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:
FOR_EACH_SLOT(i) {
struct slot_info *sl = &slot[i];
struct audio_format_info *a;
+ struct timeval diff;
if (sl->format < 0)
continue;
s->timeout = min_delay;
continue;
}
- if (sl->fc && *sl->fc->out_loaded && !sl->wng) {
+ if (!sl->fc || !*sl->fc->out_loaded || sl->wng)
+ continue;
+ if (tv_diff(now, &initial_delay_barrier, &diff) > 0) {
open_writers(i);
s->timeout = min_delay;
+ continue;
+ }
+ PARA_INFO_LOG("inital delay: %lu ms left\n", tv2ms(&diff));
+ if (tv_diff(&s->timeout, &diff, NULL) > 0) {
+ s->timeout = diff;
}
}
}
{
int i;
- /* save away the current time for other users */
t->ret = 1;
FOR_EACH_SLOT(i)
try_to_close_slot(i);
PARA_INFO_LOG("initializing %s receiver\n", receivers[i].name);
receivers[i].init(&receivers[i]);
}
- for (i = 0; i < conf.receiver_given; i++) {
+ for (i = conf.receiver_given - 1; i >= 0; i--) {
char *arg = conf.receiver_arg[i];
- char *recv = strchr(arg, ':');
+ char *recv_arg = strchr(arg, ':');
ret = -E_MISSING_COLON;
- if (!recv)
+ if (!recv_arg)
goto out;
- *recv = '\0';
- recv++;
+ *recv_arg = '\0';
+ recv_arg++;
ret = get_audio_format_num(arg);
if (ret < 0)
goto out;
- afi[ret].receiver_conf = check_receiver_arg(recv, &receiver_num);
+ afi[ret].receiver_conf = check_receiver_arg(recv_arg, &receiver_num);
if (!afi[ret].receiver_conf) {
ret = -E_RECV_SYNTAX;
goto out;
PARA_EMERG_LOG("%s", "can not listen on socket\n");
exit(EXIT_FAILURE); /* do not unlink socket */
}
- add_close_on_fork_list(fd);
+ mark_fd_nonblock(fd);
return fd;
}
-static int open_stat_pipe(void)
-{
- int ret, fd[3] = {-1, 1, 0};
- pid_t pid;
- ret = para_exec_cmdline_pid(&pid, BINDIR "/para_client stat", fd);
- if (ret >= 0) {
- ret = fd[1];
- PARA_NOTICE_LOG("stat pipe opened, fd %d\n", ret);
- add_close_on_fork_list(ret);
- } else
- clean_exit(EXIT_FAILURE, "failed to open status pipe");
- return ret;
-}
-
-void signal_event_handler(struct task *t)
+static void signal_event_handler(struct task *t)
{
struct signal_task *st = t->private_data;
handle_signal(st->signum);
}
-void signal_pre_select(struct sched *s, struct task *t)
+static void signal_pre_select(struct sched *s, struct task *t)
{
struct signal_task *st = t->private_data;
t->ret = 1;
para_fd_set(st->fd, &s->rfds, &s->max_fileno);
}
-void signal_post_select(struct sched *s, struct task *t)
+static void signal_post_select(struct sched *s, struct task *t)
{
struct signal_task *st = t->private_data;
t->ret = 1;
st->signum = para_next_signal();
}
-void signal_setup_default(struct signal_task *st)
+static void signal_setup_default(struct signal_task *st)
{
st->task.pre_select = signal_pre_select;
st->task.post_select = signal_post_select;
struct command_task *ct = t->private_data;
t->ret = 1; /* always successful */
- if (audiod_status != AUDIOD_OFF)
- audiod_status_dump();
+ audiod_status_dump();
if (!FD_ISSET(ct->fd, &s->rfds))
return;
ret = handle_connect(ct->fd);
sprintf(ct->task.status, "command task");
}
+static void client_task_event_handler(__a_unused struct task *t)
+{
+ struct private_client_data *pcd = t->private_data;
+ if (t->ret == -E_HANDSHAKE_COMPLETE)
+ return;
+ unregister_task(t);
+ pcd->eof = 1;
+}
+
static void status_event_handler(__a_unused struct task *t)
{
struct timeval delay = {1, 0};
static void status_pre_select(struct sched *s, struct task *t)
{
struct status_task *st = t->private_data;
+
t->ret = 1;
- if (st->fd >= 0 && audiod_status == AUDIOD_OFF)
+ if (st->pcd && (audiod_status == AUDIOD_OFF || st->pcd->eof))
close_stat_pipe();
- if (st->fd < 0 && audiod_status != AUDIOD_OFF
- && tv_diff(now, &st->restart_barrier, NULL) > 0) {
- st->fd = open_stat_pipe();
- st->loaded = 0;
- st->buf[0] = '\0';
+ if (st->pcd || audiod_status == AUDIOD_OFF)
+ return;
+ if (!st->clock_diff_count && tv_diff(now, &st->restart_barrier, NULL)
+ < 0)
+ return;
+ if (st->clock_diff_count) {
+ char *argv[] = {"audiod", "stat", "1", NULL};
+ int argc = 3;
+ if (tv_diff(now, &st->clock_diff_barrier, NULL) < 0)
+ return;
+ PARA_INFO_LOG("clock diff count: %d\n", st->clock_diff_count);
+ t->ret = client_parse_config(argc, argv, &st->pcd);
+
+ } else {
+ char *argv[] = {"audiod", "stat", NULL};
+ int argc = 2;
+ t->ret = client_parse_config(argc, argv, &st->pcd);
}
- if (st->fd >= 0 && audiod_status != AUDIOD_OFF)
- para_fd_set(st->fd, &s->rfds, &s->max_fileno);
+
+ if (t->ret < 0)
+ return;
+ t->ret = client_open(st->pcd);
+ if (t->ret < 0)
+ return;
+ st->pcd->task.event_handler = client_task_event_handler;
+ s->timeout.tv_sec = 0;
+ s->timeout.tv_usec = 1;
}
-static void status_post_select(struct sched *s, struct task *t)
+static void status_post_select(__a_unused struct sched *s, struct task *t)
{
struct status_task *st = t->private_data;
+ unsigned bytes_left;
t->ret = 1;
- if (st->fd < 0 || !FD_ISSET(st->fd, &s->rfds))
- return;
- t->ret = read(st->fd, st->buf + st->loaded, STRINGSIZE - 1 - st->loaded);
- if (t->ret <= 0) {
- if (!t->ret)
- t->ret = -E_STATUS_EOF;
+ if (!st->pcd || st->pcd->status != CL_RECEIVING)
return;
- }
- st->buf[t->ret + st->loaded] = '\0';
- st->loaded = for_each_line(st->buf, t->ret + st->loaded,
+ bytes_left = for_each_line(st->pcd->buf, st->pcd->loaded,
&check_stat_line);
+ if (st->pcd->loaded != bytes_left) {
+ st->last_status_read = *now;
+ st->pcd->loaded = bytes_left;
+ } else {
+ struct timeval diff;
+ tv_diff(now, &st->last_status_read, &diff);
+ if (diff.tv_sec > 61)
+ close_stat_pipe();
+ }
}
static void init_status_task(struct status_task *st)
st->task.post_select = status_post_select;
st->task.event_handler = status_event_handler;
st->task.private_data = st;
- st->fd = -1;
st->sa_time_diff_sign = 1;
+ st->clock_diff_count = conf.clock_diff_count_arg;
sprintf(st->task.status, "status task");
}
struct command_task command_task_struct, *cmd_task = &command_task_struct;
struct task audiod_task_struct, *audiod_task = &audiod_task_struct;
- init_sched();
-
valid_fd_012();
- cmdline_parser(argc, argv, &conf);
+ audiod_cmdline_parser(argc, argv, &conf);
para_drop_privileges(conf.user_arg, conf.group_arg);
cf = configfile_exists();
if (cf) {
- if (cmdline_parser_configfile(cf, &conf, 0, 0, 0)) {
+ if (audiod_cmdline_parser_configfile(cf, &conf, 0, 0, 0)) {
PARA_EMERG_LOG("%s", "parse error in config file\n");
exit(EXIT_FAILURE);
}
register_task(&cmd_task->task);
register_task(&stat_task->task);
register_task(audiod_task);
- s.default_timeout.tv_sec = 3;
+ s.default_timeout.tv_sec = 0;
s.default_timeout.tv_usec = 99 * 1000;
ret = sched(&s);
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