/*
- * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \file audiod.c the paraslash's audio daemon */
+#include <sys/types.h>
+#include <dirent.h>
+#include <signal.h>
#include "para.h"
-
+#include "error.h"
#include "audiod.cmdline.h"
#include "list.h"
#include "sched.h"
+#include "ggo.h"
#include "recv.h"
#include "filter.h"
#include "grab_client.cmdline.h"
#include "fd.h"
#include "write.h"
#include "write_common.h"
-#include "error.h"
#include "signal.h"
/** define the array of error lists needed by para_audiod */
/** define the array containing all supported audio formats */
const char *audio_formats[] = {AUDIOD_AUDIO_FORMAT_ARRAY NULL};
-/** defines how to handle one supported audio format */
+/** Defines how audiod handles one supported audio format. */
struct audio_format_info {
/** pointer to the receiver for this audio format */
struct receiver *receiver;
void *receiver_conf;
/** the number of filters that should be activated for this audio format */
unsigned int num_filters;
- /** pointer to the array of filters to be activated */
- struct filter **filters;
- /** pointer to the array of filter configurations */
+ /** Array of filter numbers to be activated. */
+ unsigned *filter_nums;
+ /** Pointer to the array of filter configurations. */
void **filter_conf;
/** the number of filters that should be activated for this audio format */
unsigned int num_writers;
struct timeval restart_barrier;
};
+/**
+ * para_audiod uses \p MAX_STREAM_SLOTS different slots, each of which may
+ * be associated with a receiver/filter/writer triple. This array holds all
+ * information on the status of these slots.
+ *
+ * \sa struct slot_info
+ * */
struct slot_info slot[MAX_STREAM_SLOTS];
+/** The array of status items sent by para_server. */
+char *stat_item_values[NUM_STAT_ITEMS] = {NULL};
+
+/**
+ * the current mode of operation of which can be changed by the on/off/cycle
+ * commands. It is either, AUDIOD_OFF, AUDIOD_ON or AUDIOD_STANDBY.
+ */
int audiod_status = AUDIOD_ON;
+/**
+ * the gengetopt args_info struct that holds information on all command line
+ * arguments
+ */
struct audiod_args_info conf;
+
static char *socket_name;
-static FILE *logfile;
static struct audio_format_info afi[NUM_AUDIO_FORMATS];
static struct signal_task signal_task_struct, *sig_task = &signal_task_struct;
static struct status_task status_task_struct;
-struct status_task *stat_task = &status_task_struct;
+
+/**
+ * the task that calls the status command of para_server
+ *
+ * \sa struct status_task
+ */
+static struct status_task *stat_task = &status_task_struct;
static struct timeval initial_delay_barrier;
/**
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;
-};
-
/** iterate over all supported audio formats */
#define FOR_EACH_AUDIO_FORMAT(af) for (af = 0; af < NUM_AUDIO_FORMATS; af++)
int get_audio_format_num(char *name)
{
int i;
+
+ while (para_isspace(*name))
+ name++;
FOR_EACH_AUDIO_FORMAT(i)
if (!strcmp(name, audio_formats[i]))
return i;
return -E_UNSUPPORTED_AUDIO_FORMAT;
}
-/*
- * log function. first argument is loglevel.
- */
-void para_log(int ll, const char* fmt,...)
+char *get_time_string(struct timeval *newest_stime)
{
- va_list argp;
- FILE *outfd;
- struct tm *tm;
- time_t t1;
- char str[MAXLINE] = "";
- static char *hostname;
-
- if (ll < conf.loglevel_arg)
- return;
- if (!hostname)
- hostname = para_hostname();
- outfd = logfile? logfile : stderr;
- time(&t1);
- tm = localtime(&t1);
- strftime(str, MAXLINE, "%b %d %H:%M:%S", tm);
- fprintf(outfd, "%s %s ", str, hostname);
- if (conf.loglevel_arg <= INFO)
- fprintf(outfd, "%i ", ll);
- va_start(argp, fmt);
- vfprintf(outfd, fmt, argp);
- va_end(argp);
+ struct timeval diff, adj_stream_start, tmp;
+ int total = 0, use_server_time = 1,
+ length_seconds = stat_task->length_seconds;
+
+ if (!stat_task->playing) {
+ if (length_seconds)
+ return NULL;
+ return make_message("%s:\n", status_item_list[SI_PLAY_TIME]);
+ }
+ if (audiod_status == AUDIOD_OFF)
+ goto out;
+ if (stat_task->sa_time_diff_sign > 0)
+ tv_diff(&stat_task->server_stream_start, &stat_task->sa_time_diff,
+ &adj_stream_start);
+ else
+ tv_add(&stat_task->server_stream_start, &stat_task->sa_time_diff,
+ &adj_stream_start);
+ tmp = adj_stream_start;
+ if (newest_stime && audiod_status == AUDIOD_ON) {
+ tv_diff(newest_stime, &adj_stream_start, &diff);
+ if (tv2ms(&diff) < 5000) {
+ tmp = *newest_stime;
+ use_server_time = 0;
+ }
+ }
+ tv_diff(now, &tmp, &diff);
+ total = diff.tv_sec + stat_task->offset_seconds;
+ if (total > length_seconds)
+ total = length_seconds;
+ if (total < 0)
+ total = 0;
+out:
+ return make_message(
+ "%s: %s%d:%02d [%d:%02d] (%d%%/%d:%02d)\n",
+ status_item_list[SI_PLAY_TIME],
+ use_server_time? "~" : "",
+ total / 60,
+ total % 60,
+ (length_seconds - total) / 60,
+ (length_seconds - total) % 60,
+ length_seconds? (total * 100 + length_seconds / 2) /
+ length_seconds : 0,
+ length_seconds / 60,
+ length_seconds % 60
+ );
}
-static char *configfile_exists(void)
+static int want_colors(void)
{
- static char *config_file;
+ if (conf.color_arg == color_arg_no)
+ return 0;
+ if (conf.color_arg == color_arg_yes)
+ return 1;
+ if (conf.logfile_given)
+ return 0;
+ return isatty(STDERR_FILENO);
+}
- if (!config_file) {
+static void parse_config_or_die(void)
+{
+ char *config_file;
+ struct audiod_cmdline_parser_params params = {
+ .override = 0,
+ .initialize = 0,
+ .check_required = 1,
+ .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/audiod.conf", home);
free(home);
}
- return file_exists(config_file)? config_file : NULL;
+ if (conf.config_file_given && !file_exists(config_file)) {
+ PARA_EMERG_LOG("can not read config file %s\n", config_file);
+ goto err;
+ }
+ if (audiod_cmdline_parser_config_file(config_file, &conf, ¶ms)) {
+ PARA_EMERG_LOG("parse error in config file\n");
+ goto err;
+ }
+ free(config_file);
+ daemon_set_loglevel(conf.loglevel_arg);
+ return;
+err:
+ free(config_file);
+ exit(EXIT_FAILURE);
}
static void setup_signal_handling(void)
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);
+ PARA_NOTICE_LOG("closing %s receiver in slot %d\n",
+ audio_formats[s->format], slot_num);
a->receiver->close(s->receiver_node);
free(s->receiver_node);
s->receiver_node = NULL;
}
-static void kill_all_decoders(void)
+static void kill_all_decoders(int error)
{
int i;
FOR_EACH_SLOT(i) {
struct slot_info *s = &slot[i];
- if (s->wng && !s->wng->eof) {
- PARA_INFO_LOG("unregistering writer node group in slot %d\n",
+ if (s->wng && s->wng->task.error >= 0) {
+ PARA_INFO_LOG("deactivating wng in slot %d\n",
i);
- wng_unregister(s->wng);
- s->wng->eof = 1;
+ s->wng->task.error = error;
}
- if (s->fc && !s->fc->eof) {
- PARA_INFO_LOG("unregistering filter chain in slot %d\n", i);
- unregister_task(&s->fc->task);
- s->fc->eof = 1;
+ if (s->fc && s->fc->task.error >= 0) {
+ PARA_INFO_LOG("deactivatimg filter chain in slot %d\n", i);
+ s->fc->task.error = error;
}
- if (s->receiver_node && !s->receiver_node->eof) {
- PARA_INFO_LOG("unregistering receiver_node in slot %d\n", i);
- unregister_task(&s->receiver_node->task);
- s->receiver_node->eof = 1;
+ if (s->receiver_node && s->receiver_node->task.error >= 0) {
+ PARA_INFO_LOG("deactivating receiver_node in slot %d\n", i);
+ s->receiver_node->task.error = error;
}
}
}
return -E_NO_MORE_SLOTS;
}
-static void close_stat_pipe(void)
-{
- int i;
-
- if (!stat_task->pcd)
- return;
- 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;
- }
- dump_empty_status();
- stat_task->length_seconds = 0;
- stat_task->offset_seconds = 0;
- audiod_status_dump();
- stat_task->playing = 0;
- 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);
- 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);
- close_stat_pipe();
- exit(status);
-}
-
/**
* get the number of filters
*
return afi[audio_format_num].num_filters;
}
-static void filter_event_handler(struct task *t)
-{
- PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
- struct filter_chain *fc = t->private_data;
- fc->eof = 1;
- unregister_task(t);
-}
-
static void open_filters(int slot_num)
{
struct slot_info *s = &slot[slot_num];
struct audio_format_info *a = &afi[s->format];
+ struct filter_node *fn;
int nf = a->num_filters;
int i;
return;
PARA_INFO_LOG("opening %s filters\n", audio_formats[s->format]);
s->fc = para_calloc(sizeof(struct filter_chain));
- INIT_LIST_HEAD(&s->fc->filters);
+ s->fc->filter_nodes = para_malloc(nf * sizeof(struct filter_node));
s->fc->inbuf = s->receiver_node->buf;
s->fc->in_loaded = &s->receiver_node->loaded;
- s->fc->input_eof = &s->receiver_node->eof;
+ s->fc->input_error = &s->receiver_node->task.error;
s->fc->task.pre_select = filter_pre_select;
- s->fc->task.event_handler = filter_event_handler;
- s->fc->task.private_data = s->fc;
- s->fc->eof = 0;
+ s->fc->task.post_select = NULL;
+ s->fc->task.error = 0;
+ s->fc->num_filters = nf;
- s->receiver_node->output_eof = &s->fc->eof;
+ s->receiver_node->output_error = &s->fc->task.error;
sprintf(s->fc->task.status, "filter chain");
- for (i = 0; i < nf; i++) {
- struct filter_node *fn = para_calloc(sizeof(struct filter_node));
+ FOR_EACH_FILTER_NODE(fn, s->fc, i) {
+ struct filter *f = filters + a->filter_nums[i];
+ fn->filter_num = a->filter_nums[i];
fn->conf = a->filter_conf[i];
fn->fc = s->fc;
- fn->filter = a->filters[i];
+ fn->loaded = 0;
INIT_LIST_HEAD(&fn->callbacks);
- list_add_tail(&fn->node, &s->fc->filters);
- fn->filter->open(fn);
+ f->open(fn);
PARA_NOTICE_LOG("%s filter %d/%d (%s) started in slot %d\n",
- audio_formats[s->format], i + 1, nf,
- fn->filter->name, slot_num);
+ audio_formats[s->format], i, nf, f->name, slot_num);
s->fc->outbuf = fn->buf;
s->fc->out_loaded = &fn->loaded;
}
register_task(&s->fc->task);
}
-static void wng_event_handler(struct task *t)
-{
- struct writer_node_group *wng = t->private_data;
-
- PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret));
- wng->eof = 1;
- wng_unregister(wng);
-}
-
static void open_writers(int slot_num)
{
int ret, i;
if (s->fc) {
s->wng->buf = s->fc->outbuf;
s->wng->loaded = s->fc->out_loaded;
- s->wng->input_eof = &s->fc->eof;
+ s->wng->input_error = &s->fc->task.error;
s->wng->channels = &s->fc->channels;
s->wng->samplerate = &s->fc->samplerate;
- s->fc->output_eof = &s->wng->eof;
+ s->fc->output_error = &s->wng->task.error;
PARA_INFO_LOG("samplerate: %d\n", *s->wng->samplerate);
} else {
s->wng->buf = s->receiver_node->buf;
s->wng->loaded = &s->receiver_node->loaded;
- s->wng->input_eof = &s->receiver_node->eof;
+ s->wng->input_error = &s->receiver_node->task.error;
}
- s->wng->task.event_handler = wng_event_handler;
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];
}
ret = wng_open(s->wng);
if (ret < 0) {
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
+ PARA_ERROR_LOG("%s\n", para_strerror(-ret));
return;
}
s->wstime = *now;
- activate_inactive_grab_clients(slot_num, s->format, &s->fc->filters);
-}
-
-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);
- }
+ activate_inactive_grab_clients(slot_num, s->format, s->fc);
}
static int open_receiver(int format)
struct slot_info *s;
int ret, slot_num;
struct receiver_node *rn;
- const struct timeval restart_delay = {1, 0};
+ const struct timeval restart_delay = {2, 0};
ret = get_empty_slot();
if (ret < 0)
}
PARA_NOTICE_LOG("started %s: %s receiver in slot %d\n",
audio_formats[s->format], a->receiver->name, slot_num);
- rn->task.private_data = s->receiver_node;
rn->task.pre_select = a->receiver->pre_select;
rn->task.post_select = a->receiver->post_select;
- rn->task.event_handler = rn_event_handler;
sprintf(rn->task.status, "%s receiver node", rn->receiver->name);
register_task(&rn->task);
- return 1;
+ ret = 1;
err:
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
+ if (ret < 0)
+ PARA_ERROR_LOG("%s\n", para_strerror(-ret));
tv_add(now, &restart_delay, &afi[format].restart_barrier);
return ret;
}
FOR_EACH_SLOT(i) {
struct slot_info *s = &slot[i];
- if (s->format == format && s->receiver_node
- && !s->receiver_node->eof)
+ if (s->format == format && s->receiver_node)
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];
+ int cafn = stat_task->current_audio_format_num;
- if (!audio_format || !stat_task->pcd)
+ if (cafn < 0 || !stat_task->ct)
return 0;
- i = get_audio_format_num(audio_format + strlen(
- status_item_list[SI_FORMAT]) + 1);
- if (i < 0)
+ if (receiver_running(cafn))
return 0;
- if (receiver_running(i))
- return 0;
- if (tv_diff(now, &afi[i].restart_barrier, &diff) < 0) {
+ if (tv_diff(now, &afi[cafn].restart_barrier, &diff) < 0) {
s->timeout = diff;
return 0;
}
- return open_receiver(i) < 0? 0 : 1;
+ return open_receiver(cafn) < 0? 0 : 1;
}
-static void compute_time_diff(const struct timeval *status_time)
+static unsigned compute_time_diff(const struct timeval *status_time)
{
struct timeval tmp, diff;
- static int count;
+ static unsigned count;
int sign, sa_time_diff_sign = stat_task->sa_time_diff_sign;
const struct timeval max_deviation = {0, 500 * 1000};
const int time_smooth = 5;
+ if (!status_time)
+ return count;
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);
);
out:
stat_task->sa_time_diff_sign = sa_time_diff_sign;
+ return count;
}
-static void check_stat_line(char *line)
+static int check_stat_line(char *line, __a_unused void *data)
{
int itemnum;
size_t ilen = 0;
long unsigned sec, usec;
char *tmp;
-// PARA_INFO_LOG("line: %s\n", line);
+ //PARA_INFO_LOG("line: %s\n", line);
if (!line)
- return;
+ return 1;
itemnum = stat_line_valid(line);
if (itemnum < 0) {
PARA_WARNING_LOG("invalid status line: %s\n", line);
- return;
+ return 1;
}
if (stat_task->clock_diff_count && itemnum != SI_CURRENT_TIME)
- return;
+ return 1;
tmp = make_message("%s\n", line);
stat_client_write(tmp, itemnum);
free(tmp);
- free(stat_task->stat_item_values[itemnum]);
- stat_task->stat_item_values[itemnum] = para_strdup(line);
+ free(stat_item_values[itemnum]);
+ stat_item_values[itemnum] = para_strdup(line);
ilen = strlen(status_item_list[itemnum]);
switch (itemnum) {
case SI_STATUS:
stat_task->playing = strstr(line, "playing")? 1 : 0;
+ PARA_INFO_LOG("stat task playing: %d\n", stat_task->playing);
break;
case SI_OFFSET:
stat_task->offset_seconds = atoi(line + ilen + 1);
break;
- case SI_LENGTH:
+ case SI_SECONDS_TOTAL:
stat_task->length_seconds = atoi(line + ilen + 1);
break;
case SI_STREAM_START:
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);
+ if (compute_time_diff(NULL) > 2) {
+ 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;
+ case SI_FORMAT:
+ stat_task->current_audio_format_num = get_audio_format_num(
+ line + ilen + 1);
}
-}
-
-static void handle_signal(int sig)
-{
- switch (sig) {
- case SIGINT:
- case SIGTERM:
- case SIGHUP:
- PARA_EMERG_LOG("terminating on signal %d\n", sig);
- clean_exit(EXIT_FAILURE, "caught deadly signal");
- return;
- }
-}
-
-static void try_to_close_slot(int slot_num)
-{
- struct slot_info *s = &slot[slot_num];
-
- if (s->format < 0)
- return;
- if (s->receiver_node && !s->receiver_node->eof)
- return;
- if (s->fc && !s->fc->eof)
- return;
- if (s->wng && !s->wng->eof)
- return;
- PARA_INFO_LOG("closing slot %d \n", slot_num);
- wng_close(s->wng);
- close_filters(s->fc);
- free(s->fc);
- close_receiver(slot_num);
- clear_slot(slot_num);
-}
-
-/*
- * Check if any receivers/filters/writers need to be started and do so if
- * neccessary. Since the pre_select function didn't have a chance yet to put
- * file descriptors into the fd sets given by s, make the upcoming select()
- * return immediately to avoid a long timeout in case we started something.
- */
-static void audiod_pre_select(struct sched *s, __a_unused struct task *t)
-{
- int i;
- struct timeval min_delay = {0, 1};
-
- t->ret = 1;
- if (audiod_status != AUDIOD_ON || !stat_task->playing)
- return kill_all_decoders();
- if (open_current_receiver(s))
- s->timeout = min_delay;
- FOR_EACH_SLOT(i) {
- struct slot_info *sl = &slot[i];
- struct audio_format_info *a;
- struct timeval diff;
-
- if (sl->format < 0)
- continue;
- a = &afi[sl->format];
- if (!sl->receiver_node)
- continue;
- if (!a->num_filters) {
- if (sl->receiver_node->loaded && !sl->wng) {
- open_writers(i);
- s->timeout = min_delay;
- }
- continue;
- }
- if (sl->receiver_node->loaded && !sl->fc) {
- open_filters(i);
- s->timeout = min_delay;
- continue;
- }
- 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;
- }
- }
-}
-
-static void audiod_post_select(__a_unused struct sched *s,
- __a_unused struct task *t)
-{
- int i;
-
- t->ret = 1;
- FOR_EACH_SLOT(i)
- try_to_close_slot(i);
-}
-
-static void init_audiod_task(struct task *t)
-{
- t->pre_select = audiod_pre_select;
- t->post_select = audiod_post_select;
- t->event_handler = NULL;
- t->private_data = t;
- sprintf(t->status, "audiod task");
+ return 1;
}
static int parse_stream_command(const char *txt, char **cmd)
filter_num = check_filter_arg(cmdline, &a->filter_conf[nf]);
if (filter_num < 0)
return filter_num;
- a->filters[nf] = &filters[filter_num];
+ a->filter_nums[nf] = filter_num;
a->num_filters++;
- PARA_INFO_LOG("%s filter %d: %s\n", audio_formats[format], nf + 1,
- a->filters[nf]->name);
+ PARA_INFO_LOG("%s filter %d: %s\n", audio_formats[format], nf,
+ filters[filter_num].name);
return filter_num;
}
struct audio_format_info *a;
init_supported_writers();
- nw = PARA_MAX(1, conf.writer_given);
+ nw = PARA_MAX(1U, conf.writer_given);
PARA_INFO_LOG("maximal number of writers: %d\n", nw);
FOR_EACH_AUDIO_FORMAT(i) {
a = &afi[i];
int i, ret, nf;
filter_init(filters);
- nf = PARA_MAX(1, conf.filter_given);
+ nf = PARA_MAX(1U, 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 *));
+ afi[i].filter_nums = para_malloc(nf * sizeof(unsigned));
}
if (!conf.no_default_filters_given)
return init_default_filters();
return 1;
}
+/* does not unlink socket on errors */
static int audiod_get_socket(void)
{
struct sockaddr_un unix_addr;
- int fd;
+ int ret, fd;
if (conf.socket_given)
socket_name = para_strdup(conf.socket_arg);
PARA_NOTICE_LOG("local socket: %s\n", socket_name);
if (conf.force_given)
unlink(socket_name);
- fd = create_pf_socket(socket_name, &unix_addr,
- S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IWOTH);
- if (fd < 0) {
- PARA_EMERG_LOG("%s", "can not connect to socket\n");
- exit(EXIT_FAILURE); /* do not unlink socket */
- }
+ ret = create_local_socket(socket_name, &unix_addr,
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IWOTH);
+ if (ret < 0)
+ goto err;
+ fd = ret;
if (listen(fd , 5) < 0) {
- PARA_EMERG_LOG("%s", "can not listen on socket\n");
- exit(EXIT_FAILURE); /* do not unlink socket */
+ ret = -ERRNO_TO_PARA_ERROR(errno);
+ goto err;
}
- mark_fd_nonblock(fd);
+ ret = mark_fd_nonblocking(fd);
+ if (ret < 0)
+ goto err;
return fd;
-}
-
-static void signal_event_handler(struct task *t)
-{
- struct signal_task *st = t->private_data;
-
- if (t->ret != -E_SIGNAL_CAUGHT)
- PARA_ERROR_LOG("%s (ignored)\n", PARA_STRERROR(-t->ret));
- else
- handle_signal(st->signum);
+err:
+ PARA_EMERG_LOG("%s\n", para_strerror(-ret));
+ exit(EXIT_FAILURE);
}
static void signal_pre_select(struct sched *s, struct task *t)
{
- struct signal_task *st = t->private_data;
- t->ret = 1;
+ struct signal_task *st = container_of(t, struct signal_task, task);
para_fd_set(st->fd, &s->rfds, &s->max_fileno);
}
static void signal_post_select(struct sched *s, struct task *t)
{
- struct signal_task *st = t->private_data;
- t->ret = 1;
+ struct signal_task *st = container_of(t, struct signal_task, task);
+
if (!FD_ISSET(st->fd, &s->rfds))
return;
- t->ret = -E_SIGNAL_CAUGHT;
+
st->signum = para_next_signal();
+ switch (st->signum) {
+ case SIGINT:
+ case SIGTERM:
+ case SIGHUP:
+ PARA_EMERG_LOG("terminating on signal %d\n", st->signum);
+ clean_exit(EXIT_FAILURE, "caught deadly signal");
+ }
}
static void signal_setup_default(struct signal_task *st)
{
st->task.pre_select = signal_pre_select;
st->task.post_select = signal_post_select;
- st->task.private_data = st;
sprintf(st->task.status, "signal task");
}
static void command_pre_select(struct sched *s, struct task *t)
{
- struct command_task *ct = t->private_data;
- t->ret = 1;
+ struct command_task *ct = container_of(t, struct command_task, task);
para_fd_set(ct->fd, &s->rfds, &s->max_fileno);
-
}
static void command_post_select(struct sched *s, struct task *t)
{
int ret;
- struct command_task *ct = t->private_data;
+ struct command_task *ct = container_of(t, struct command_task, task);
- t->ret = 1; /* always successful */
audiod_status_dump();
if (!FD_ISSET(ct->fd, &s->rfds))
return;
ret = handle_connect(ct->fd);
if (ret < 0)
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
+ PARA_ERROR_LOG("%s\n", para_strerror(-ret));
}
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.event_handler = NULL;
- ct->task.private_data = ct;
+ ct->task.error = 0;
ct->fd = audiod_get_socket(); /* doesn't return on errors */
sprintf(ct->task.status, "command task");
}
-static void client_task_event_handler(__a_unused struct task *t)
+static void close_stat_pipe(void)
{
- struct private_client_data *pcd = t->private_data;
- if (t->ret == -E_HANDSHAKE_COMPLETE)
+ int i;
+
+ if (!stat_task->ct)
return;
- unregister_task(t);
- pcd->eof = 1;
+ client_close(stat_task->ct);
+ stat_task->ct = NULL;
+ FOR_EACH_STATUS_ITEM(i) {
+ free(stat_item_values[i]);
+ stat_item_values[i] = NULL;
+ }
+ dump_empty_status();
+ stat_task->length_seconds = 0;
+ stat_task->offset_seconds = 0;
+ audiod_status_dump();
+ stat_task->playing = 0;
}
-static void status_event_handler(__a_unused struct task *t)
+/**
+ * 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 if
+ * open, and call \p exit(status). \a status should be either EXIT_SUCCESS or
+ * EXIT_FAILURE.
+ *
+ * \sa exit(3)
+ */
+void __noreturn clean_exit(int status, const char *msg)
+{
+ PARA_EMERG_LOG("%s\n", msg);
+ if (socket_name)
+ unlink(socket_name);
+ close_stat_pipe();
+ exit(status);
+}
+
+/* avoid busy loop if server is down */
+static void set_stat_task_restart_barrier(unsigned seconds)
+{
+ struct timeval delay = {seconds, 0};
+ tv_add(now, &delay, &stat_task->restart_barrier);
+}
+
+static void try_to_close_slot(int slot_num)
+{
+ struct slot_info *s = &slot[slot_num];
+
+ if (s->format < 0)
+ return;
+ if (s->receiver_node && s->receiver_node->task.error != -E_TASK_UNREGISTERED)
+ return;
+ if (s->fc && s->fc->task.error != -E_TASK_UNREGISTERED)
+ return;
+ if (s->wng && s->wng->task.error != -E_TASK_UNREGISTERED)
+ return;
+ PARA_INFO_LOG("closing slot %d\n", slot_num);
+ wng_close(s->wng);
+ close_filters(s->fc);
+ free(s->fc);
+ close_receiver(slot_num);
+ clear_slot(slot_num);
+}
+
+/*
+ * Check if any receivers/filters/writers need to be started and do so if
+ * necessary.
+ */
+static void start_stop_decoders(struct sched *s)
{
- struct timeval delay = {1, 0};
int i;
- struct status_task *st = t->private_data;
- PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret));
- close_stat_pipe();
- /* avoid busy loop if server is down */
- tv_add(now, &delay, &st->restart_barrier);
- FOR_EACH_AUDIO_FORMAT(i)
- afi[i].restart_barrier = st->restart_barrier;
+ FOR_EACH_SLOT(i)
+ try_to_close_slot(i);
+ if (audiod_status != AUDIOD_ON || !stat_task->playing)
+ return kill_all_decoders(-E_NOT_PLAYING);
+ open_current_receiver(s);
+ FOR_EACH_SLOT(i) {
+ struct slot_info *sl = &slot[i];
+ struct audio_format_info *a;
+ struct timeval diff;
+
+ if (sl->format < 0)
+ continue;
+ a = &afi[sl->format];
+ if (!sl->receiver_node)
+ continue;
+ if ((!a->num_filters || sl->fc) && sl->wng)
+ continue; /* everything already started */
+ if (!a->num_filters) {
+ if (sl->receiver_node->loaded && !sl->wng) {
+ open_writers(i);
+ }
+ continue;
+ }
+ if (sl->receiver_node->loaded && !sl->fc) {
+ open_filters(i);
+ continue;
+ }
+ if (sl->wng || !sl->fc || !*sl->fc->out_loaded)
+ continue;
+ if (tv_diff(now, &initial_delay_barrier, &diff) > 0) {
+ open_writers(i);
+ continue;
+ }
+ PARA_INFO_LOG("initial delay: %lu ms left\n", tv2ms(&diff));
+ if (tv_diff(&s->timeout, &diff, NULL) > 0) {
+ s->timeout = diff;
+ }
+ }
}
+
+/* restart the client task if necessary */
static void status_pre_select(struct sched *s, struct task *t)
{
- struct status_task *st = t->private_data;
+ struct status_task *st = container_of(t, struct status_task, task);
- t->ret = 1;
- if (st->pcd && (audiod_status == AUDIOD_OFF || st->pcd->eof))
+ if (audiod_status == AUDIOD_OFF) {
+ if (!st->ct)
+ goto out;
+ if (st->ct->task.error >= 0) {
+ st->ct->task.error = -E_AUDIOD_OFF;
+ goto out;
+ }
+ if (st->ct->task.error != -E_TASK_UNREGISTERED)
+ goto out;
close_stat_pipe();
- 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) {
+ st->clock_diff_count = conf.clock_diff_count_arg;
+ goto out;
+ }
+ if (st->ct) {
+ unsigned bytes_left;
+ if (st->ct->task.error < 0) {
+ if (st->ct->task.error != -E_TASK_UNREGISTERED)
+ goto out;
+ close_stat_pipe();
+ goto out;
+ }
+ if (st->ct->status != CL_RECEIVING)
+ goto out;
+ bytes_left = for_each_line(st->ct->buf, st->ct->loaded,
+ &check_stat_line, NULL);
+ if (st->ct->loaded != bytes_left) {
+ st->last_status_read = *now;
+ st->ct->loaded = bytes_left;
+ } else {
+ struct timeval diff;
+ tv_diff(now, &st->last_status_read, &diff);
+ if (diff.tv_sec > 61)
+ st->ct->task.error = -E_STATUS_TIMEOUT;
+ }
+ goto out;
+ }
+ if (tv_diff(now, &st->restart_barrier, NULL) < 0)
+ goto out;
+ if (st->clock_diff_count) { /* get status only one time */
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_open(argc, argv, &st->pcd);
+ st->clock_diff_count--;
+ client_open(argc, argv, &st->ct);
+ set_stat_task_restart_barrier(2);
} else {
char *argv[] = {"audiod", "stat", NULL};
int argc = 2;
- t->ret = client_open(argc, argv, &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(__a_unused struct sched *s, struct task *t)
-{
- struct status_task *st = t->private_data;
- unsigned bytes_left;
-
- t->ret = 1;
- if (!st->pcd || st->pcd->status != CL_RECEIVING)
- return;
- 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();
+ client_open(argc, argv, &st->ct);
+ set_stat_task_restart_barrier(5);
}
+ free(stat_item_values[SI_BASENAME]);
+ stat_item_values[SI_BASENAME] = make_message(
+ "%s: no connection to para_server\n",
+ status_item_list[SI_BASENAME]);
+ stat_client_write(stat_item_values[SI_BASENAME],
+ SI_BASENAME);
+ st->last_status_read = *now;
+out:
+ start_stop_decoders(s);
}
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->task.event_handler = status_event_handler;
- st->task.private_data = st;
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, "status task");
}
return;
}
if (strcmp(conf.mode_arg, "on"))
- PARA_WARNING_LOG("%s", "invalid mode\n");
+ PARA_WARNING_LOG("invalid mode\n");
}
+__noreturn static void print_help_and_die(void)
+{
+ int d = conf.detailed_help_given;
+ const char **p = d? audiod_args_info_detailed_help
+ : audiod_args_info_help;
+
+ printf_or_die("%s\n\n", AUDIOD_CMDLINE_PARSER_PACKAGE "-"
+ AUDIOD_CMDLINE_PARSER_VERSION);
+ printf_or_die("%s\n\n", audiod_args_info_usage);
+ for (; *p; p++)
+ printf_or_die("%s\n", *p);
+ print_receiver_helps(d);
+ print_filter_helps(d);
+ print_writer_helps(d);
+ exit(0);
+}
+
+static void init_colors_or_die(void)
+{
+ int ret, i;
+
+ if (!want_colors())
+ return;
+ daemon_set_default_log_colors();
+ daemon_set_flag(DF_COLOR_LOG);
+ for (i = 0; i < conf.log_color_given; i++) {
+ ret = daemon_set_log_color(conf.log_color_arg[i]);
+ if (ret < 0)
+ exit(EXIT_FAILURE);
+ }
+}
+
+/**
+ * the main function of para_audiod
+ *
+ * \param argc usual argument count
+ * \param argv usual argument vector
+ *
+ * \return EXIT_SUCCESS or EXIT_FAILURE
+ *
+ * \sa para_audiod(1)
+ * */
int main(int argc, char *argv[])
{
- char *cf;
int ret, i;
- struct sched s;
+ static struct sched s;
struct command_task command_task_struct, *cmd_task = &command_task_struct;
- struct task audiod_task_struct, *audiod_task = &audiod_task_struct;
+ struct audiod_cmdline_parser_params params = {
+ .override = 0,
+ .initialize = 1,
+ .check_required = 0,
+ .check_ambiguity = 0,
+ .print_errors = 1
+ };
valid_fd_012();
- audiod_cmdline_parser(argc, argv, &conf);
+ audiod_cmdline_parser_ext(argc, argv, &conf, ¶ms);
HANDLE_VERSION_FLAG("audiod", conf);
- para_drop_privileges(conf.user_arg, conf.group_arg);
- cf = configfile_exists();
- if (cf) {
- if (audiod_cmdline_parser_configfile(cf, &conf, 0, 0, 0)) {
- PARA_EMERG_LOG("%s", "parse error in config file\n");
- exit(EXIT_FAILURE);
- }
+ drop_privileges_or_die(conf.user_arg, conf.group_arg);
+ parse_config_or_die();
+ if (conf.help_given || conf.detailed_help_given)
+ print_help_and_die();
+ daemon_set_flag(DF_LOG_TIME);
+ daemon_set_flag(DF_LOG_HOSTNAME);
+ daemon_set_flag(DF_LOG_LL);
+ if (conf.logfile_given) {
+ daemon_set_logfile(conf.logfile_arg);
+ daemon_open_log_or_die();
}
- if (conf.logfile_given)
- logfile = open_log(conf.logfile_arg);
- log_welcome("para_audiod", conf.loglevel_arg);
+ init_colors_or_die();
i = init_stream_io();
if (i < 0) {
- PARA_EMERG_LOG("init stream io error: %s\n", PARA_STRERROR(-i));
+ PARA_EMERG_LOG("init stream io error: %s\n", para_strerror(-i));
exit(EXIT_FAILURE);
}
+ log_welcome("para_audiod", conf.loglevel_arg);
server_uptime(UPTIME_SET);
set_initial_status();
FOR_EACH_SLOT(i)
init_grabbing();
setup_signal_handling();
signal_setup_default(sig_task);
- sig_task->task.event_handler = signal_event_handler;
init_status_task(stat_task);
init_command_task(cmd_task);
- init_audiod_task(audiod_task);
if (conf.daemon_given)
- daemon_init();
+ daemonize();
register_task(&sig_task->task);
register_task(&cmd_task->task);
register_task(&stat_task->task);
- register_task(audiod_task);
s.default_timeout.tv_sec = 0;
s.default_timeout.tv_usec = 99 * 1000;
- ret = sched(&s);
+ ret = schedule(&s);
- PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret));
+ PARA_EMERG_LOG("%s\n", para_strerror(-ret));
return EXIT_FAILURE;
}
projects / paraslash.git / blobdiff