/*
- * Copyright (C) 2005-2014 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2014 Andre Noll <maan@tuebingen.mpg.de>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
*/
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 */
task_reap(&s->receiver_node->task);
free(s->receiver_node);
s->receiver_node = NULL;
+ stat_task->current_audio_format_num = -1;
tv_add(now, &(struct timeval)EMBRACE(0, 200 * 1000),
&a->restart_barrier);
}
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, void *context)
{
- int signum;
+ struct signal_task *st = context;
+ int ret, signum;
+ ret = task_get_notification(st->task);
+ if (ret < 0)
+ return ret;
signum = para_next_signal(&s->rfds);
switch (signum) {
case SIGINT:
case SIGTERM:
case SIGHUP:
PARA_NOTICE_LOG("received signal %d\n", signum);
- clean_exit(EXIT_FAILURE, "caught deadly signal");
+ task_notify_all(s, E_AUDIOD_SIGNAL);
+ return -E_AUDIOD_SIGNAL;
}
return 0;
}
-static void signal_setup_default(struct signal_task *st)
-{
- 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)
+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;
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;
- ret = handle_connect(ct->fd, &s->rfds);
+ ret = task_get_notification(ct->task);
if (ret < 0)
+ return ret;
+ ret = handle_connect(ct->fd, &s->rfds);
+ if (ret < 0) {
PARA_ERROR_LOG("%s\n", para_strerror(-ret));
- else if (ret > 0)
+ if (ret == -E_AUDIOD_TERM) {
+ task_notify_all(s, -ret);
+ return ret;
+ }
+ } else if (ret > 0)
goto dump;
/* if last status dump was less than 500ms ago, do nothing */
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;
close_slot(i);
}
-/**
- * Close the connection to para_server and exit.
- *
- * \param status The exit status which is passed to exit(3).
- * \param msg The log message
- *
- * Log \a msg with loglevel \p EMERG, close the connection to para_server and
- * all slots, and call \p exit(status). \a status should be either EXIT_SUCCESS
- * or EXIT_FAILURE.
+/*
+ * Cleanup all resources.
*
- * \sa exit(3).
+ * This performs various cleanups, removes the audiod socket and closes the
+ * connection to para_server.
*/
-void __noreturn clean_exit(int status, const char *msg)
+static void audiod_cleanup(void)
{
if (socket_name)
unlink(socket_name);
close_unused_slots();
audiod_cmdline_parser_free(&conf);
close_stat_clients();
- PARA_EMERG_LOG("%s\n", msg);
- exit(status);
}
/*
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;
+ int ret;
+ ret = task_get_notification(st->task);
+ if (ret < 0)
+ return ret;
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();
if (st->ct) {
char *buf;
size_t sz;
- int ret;
ret = btr_node_status(st->btrn, st->min_iqs, BTR_NT_LEAF);
if (ret < 0) {
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)
writer_init();
if (conf.help_given || conf.detailed_help_given)
print_help_and_die();
- drop_privileges_or_die(conf.user_arg, conf.group_arg);
+ daemon_drop_privileges_or_die(conf.user_arg, conf.group_arg);
parse_config_or_die();
init_colors_or_die();
init_random_seed_or_die();
PARA_EMERG_LOG("%s\n", para_strerror(-ret));
exit(EXIT_FAILURE);
}
- log_welcome("para_audiod");
- set_server_start_time(NULL);
+ daemon_log_welcome("para_audiod");
+ daemon_set_start_time();
set_initial_status();
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);
+ audiod_cleanup();
sched_shutdown(&sched);
- PARA_EMERG_LOG("%s\n", para_strerror(-ret));
- return EXIT_FAILURE;
+ if (ret < 0)
+ PARA_EMERG_LOG("%s\n", para_strerror(-ret));
+ return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;
}
projects / paraslash.git / blobdiff