2 * Copyright (C) 2005-2006 Andre Noll <noll@mathematik.tu-darmstadt.de>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
19 /** \file audiod.c the paraslash's audio daemon */
23 #include "audiod.cmdline.h"
28 #include "grab_client.cmdline.h"
29 #include "grab_client.h"
30 #include "client.cmdline.h"
38 #include "write_common.h"
41 /** define the array of error lists needed by para_audiod */
43 /** define the array containing all supported audio formats */
44 DEFINE_AUDIO_FORMAT_ARRAY;
46 /** defines how to handle one supported audio format */
47 struct audio_format_info {
48 /** pointer to the receiver for this audio format */
49 struct receiver *receiver;
50 /** the receiver configuration */
52 /** the number of filters that should be activated for this audio format */
53 unsigned int num_filters;
54 /** pointer to the array of filters to be activated */
55 struct filter **filters;
56 /** pointer to the array of filter configurations */
58 /** the number of filters that should be activated for this audio format */
59 unsigned int num_writers;
60 /** pointer to the array of writers to be activated */
61 struct writer **writers;
62 /** pointer to the array of writer configurations */
64 /** do not start receiver/filters/writer before this time */
65 struct timeval restart_barrier;
68 struct slot_info slot[MAX_STREAM_SLOTS];
71 int audiod_status = AUDIOD_ON;
73 struct audiod_args_info conf;
74 static char *socket_name;
76 static struct audio_format_info afi[NUM_AUDIO_FORMATS];
78 static struct signal_task signal_task_struct, *sig_task = &signal_task_struct;
80 static struct status_task status_task_struct;
81 struct status_task *stat_task = &status_task_struct;
84 * the task for handling audiod commands
86 * \sa struct task, struct sched
89 /** the local listening socket */
91 /** the associated task structure */
96 * task for signal handling
99 /** the signal pipe */
101 /** the number of the most recent signal */
103 /** the associated task structure */
107 /** iterate over all supported audio formats */
108 #define FOR_EACH_AUDIO_FORMAT(af) for (af = 0; af < NUM_AUDIO_FORMATS; af++)
111 * get the audio format number
112 * \param name the name of the audio format
114 * \return The audio format number on success, -E_UNSUPPORTED_AUDIO_FORMAT if
115 * \a name is not a supported audio format.
117 int get_audio_format_num(char *name)
120 FOR_EACH_AUDIO_FORMAT(i)
121 if (!strcmp(name, audio_formats[i]))
123 return -E_UNSUPPORTED_AUDIO_FORMAT;
127 * log function. first argument is loglevel.
129 void para_log(int ll, const char* fmt,...)
135 char str[MAXLINE] = "";
136 static char *hostname;
138 if (ll < conf.loglevel_arg)
141 hostname = para_hostname();
142 outfd = logfile? logfile : stderr;
145 strftime(str, MAXLINE, "%b %d %H:%M:%S", tm);
146 fprintf(outfd, "%s %s ", str, hostname);
147 if (conf.loglevel_arg <= INFO)
148 fprintf(outfd, "%i ", ll);
150 vfprintf(outfd, fmt, argp);
154 static char *configfile_exists(void)
156 static char *config_file;
159 char *home = para_homedir();
160 config_file = make_message("%s/.paraslash/audiod.conf", home);
163 return file_exists(config_file)? config_file : NULL;
166 static void setup_signal_handling(void)
168 sig_task->fd = para_signal_init();
169 PARA_INFO_LOG("signal pipe: fd %d\n", sig_task->fd);
170 para_install_sighandler(SIGINT);
171 para_install_sighandler(SIGTERM);
172 para_install_sighandler(SIGHUP);
173 signal(SIGPIPE, SIG_IGN);
176 static void clear_slot(int slot_num)
178 struct slot_info *s = &slot[slot_num];
180 PARA_INFO_LOG("clearing slot %d\n", slot_num);
181 memset(s, 0, sizeof(struct slot_info));
185 static void close_receiver(int slot_num)
187 struct slot_info *s = &slot[slot_num];
188 struct audio_format_info *a;
189 const struct timeval restart_delay = {0, 200 * 1000};
191 if (s->format < 0 || !s->receiver_node)
194 PARA_NOTICE_LOG("closing %s receiver in slot %d (eof = %d)\n",
195 audio_formats[s->format] , slot_num, s->receiver_node->eof);
196 // if (!s->receiver_node->eof)
197 // unregister_task(&s->receiver_node->task);
198 a->receiver->close(s->receiver_node);
199 free(s->receiver_node);
200 s->receiver_node = NULL;
201 /* set restart barrier */
202 tv_add(now, &restart_delay, &afi[s->format].restart_barrier);
205 static void kill_all_decoders(void)
210 struct slot_info *s = &slot[i];
211 if (s->wng && !s->wng->eof) {
212 PARA_INFO_LOG("unregistering writer node group in slot %d\n",
214 wng_unregister(s->wng);
217 if (s->fc && !s->fc->eof) {
218 PARA_INFO_LOG("unregistering filter chain in slot %d\n", i);
219 unregister_task(&s->fc->task);
222 if (s->receiver_node && !s->receiver_node->eof) {
223 PARA_INFO_LOG("unregistering receiver_node in slot %d\n", i);
224 unregister_task(&s->receiver_node->task);
225 s->receiver_node->eof = 1;
230 static int get_empty_slot(void)
241 if (s->wng || s->receiver_node || s->fc)
246 return -E_NO_MORE_SLOTS;
249 static int decoder_running(int format)
256 if (s->format == format && s->receiver_node)
258 if (s->format == format && s->wng)
264 static void close_stat_pipe(void)
270 client_close(stat_task->pcd);
271 stat_task->pcd = NULL;
272 for (i = 0; i < NUM_STAT_ITEMS; i++) {
273 free(stat_task->stat_item_values[i]);
274 stat_task->stat_item_values[i] = NULL;
277 stat_task->length_seconds = 0;
278 stat_task->offset_seconds = 0;
279 audiod_status_dump();
280 stat_task->playing = 0;
281 stat_task->stat_item_values[SI_STATUS_BAR] = make_message(
282 "%s:no connection to para_server\n",
283 status_item_list[SI_STATUS_BAR]);
284 stat_client_write(stat_task->stat_item_values[SI_STATUS_BAR], SI_STATUS_BAR);
287 void __noreturn clean_exit(int status, const char *msg)
289 PARA_EMERG_LOG("%s\n", msg);
297 * get the number of filters
299 * \param audio_format_num the number identifying the audio format
301 * \return the number of filters for the given audio format
305 int num_filters(int audio_format_num)
307 return afi[audio_format_num].num_filters;
310 static void filter_event_handler(struct task *t)
312 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
313 struct filter_chain *fc = t->private_data;
318 static void open_filters(int slot_num)
320 struct slot_info *s = &slot[slot_num];
321 struct audio_format_info *a = &afi[s->format];
322 int nf = a->num_filters;
328 PARA_INFO_LOG("opening %s filters\n", audio_formats[s->format]);
329 s->fc = para_calloc(sizeof(struct filter_chain));
330 INIT_LIST_HEAD(&s->fc->filters);
331 s->fc->inbuf = s->receiver_node->buf;
332 s->fc->in_loaded = &s->receiver_node->loaded;
333 s->fc->input_eof = &s->receiver_node->eof;
334 s->fc->task.pre_select = filter_pre_select;
335 s->fc->task.event_handler = filter_event_handler;
336 s->fc->task.private_data = s->fc;
339 s->receiver_node->output_eof = &s->fc->eof;
340 sprintf(s->fc->task.status, "filter chain");
341 for (i = 0; i < nf; i++) {
342 struct filter_node *fn = para_calloc(sizeof(struct filter_node));
343 fn->conf = a->filter_conf[i];
345 fn->filter = a->filters[i];
346 INIT_LIST_HEAD(&fn->callbacks);
347 list_add_tail(&fn->node, &s->fc->filters);
348 fn->filter->open(fn);
349 PARA_NOTICE_LOG("%s filter %d/%d (%s) started in slot %d\n",
350 audio_formats[s->format], i + 1, nf,
351 fn->filter->name, slot_num);
352 s->fc->outbuf = fn->buf;
353 s->fc->out_loaded = &fn->loaded;
355 register_task(&s->fc->task);
358 static void wng_event_handler(struct task *t)
360 struct writer_node_group *wng = t->private_data;
362 PARA_INFO_LOG("%s\n", PARA_STRERROR(-t->ret));
367 static void open_writers(int slot_num)
370 struct slot_info *s = &slot[slot_num];
371 struct audio_format_info *a = &afi[s->format];
373 PARA_INFO_LOG("opening %s writers\n", audio_formats[s->format]);
375 s->wng = setup_default_wng();
377 s->wng = wng_new(a->num_writers);
379 s->wng->buf = s->fc->outbuf;
380 s->wng->loaded = s->fc->out_loaded;
381 s->wng->input_eof = &s->fc->eof;
382 s->wng->channels = &s->fc->channels;
383 s->wng->samplerate = &s->fc->samplerate;
384 s->fc->output_eof = &s->wng->eof;
385 PARA_INFO_LOG("samplerate: %d\n", *s->wng->samplerate);
387 s->wng->buf = s->receiver_node->buf;
388 s->wng->loaded = &s->receiver_node->loaded;
389 s->wng->input_eof = &s->receiver_node->eof;
391 s->wng->task.event_handler = wng_event_handler;
392 for (i = 0; i < a->num_writers; i++) {
393 s->wng->writer_nodes[i].conf = a->writer_conf[i];
394 s->wng->writer_nodes[i].writer = a->writers[i];
396 ret = wng_open(s->wng);
398 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
402 activate_inactive_grab_clients(slot_num, s->format, &s->fc->filters);
405 static void rn_event_handler(struct task *t)
407 struct receiver_node *rn = t->private_data;
409 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t->ret));
414 static void open_receiver(int format)
416 struct audio_format_info *a = &afi[format];
419 struct receiver_node *rn;
421 slot_num = get_empty_slot();
423 clean_exit(EXIT_FAILURE, PARA_STRERROR(-slot_num));
426 s->receiver_node = para_calloc(sizeof(struct receiver_node));
427 rn = s->receiver_node;
428 rn->receiver = a->receiver;
429 rn->conf = a->receiver_conf;
430 ret = a->receiver->open(s->receiver_node);
432 PARA_ERROR_LOG("failed to open receiver (%s)\n",
433 PARA_STRERROR(-ret));
434 free(s->receiver_node);
435 s->receiver_node = NULL;
438 PARA_NOTICE_LOG("started %s: %s receiver in slot %d\n",
439 audio_formats[s->format], a->receiver->name, slot_num);
440 rn->task.private_data = s->receiver_node;
441 rn->task.pre_select = a->receiver->pre_select;
442 rn->task.post_select = a->receiver->post_select;
443 rn->task.event_handler = rn_event_handler;
444 sprintf(rn->task.status, "%s receiver node", rn->receiver->name);
445 register_task(&rn->task);
448 static int open_current_receiver(struct sched *s)
453 if (!stat_task->af_status || !stat_task->pcd)
455 i = get_audio_format_num(stat_task->af_status);
458 if (decoder_running(i))
460 if (tv_diff(now, &afi[i].restart_barrier, &diff) < 0) {
468 static void compute_time_diff(const struct timeval *status_time)
470 struct timeval tmp, diff;
472 int sign, sa_time_diff_sign = stat_task->sa_time_diff_sign;
473 const struct timeval max_deviation = {0, 500 * 1000};
474 const int time_smooth = 5;
476 sign = tv_diff(status_time, now, &diff);
477 // PARA_NOTICE_LOG("%s: sign = %i, sa_time_diff_sign = %i\n", __func__,
478 // sign, sa_time_diff_sign);
480 sa_time_diff_sign = sign;
481 stat_task->sa_time_diff = diff;
486 int s = tv_diff(&diff, &stat_task->sa_time_diff, &tmp);
487 if (tv_diff(&max_deviation, &tmp, NULL) < 0)
488 PARA_WARNING_LOG("time diff jump: %lims\n",
492 sa_time_diff_sign = tv_convex_combination(
493 sa_time_diff_sign * time_smooth, &stat_task->sa_time_diff,
494 count > 10? sign : sign * time_smooth, &diff,
496 stat_task->sa_time_diff = tmp;
497 PARA_DEBUG_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
500 sa_time_diff_sign ? "+" : "-",
501 tv2ms(&stat_task->sa_time_diff)
505 static void check_stat_line(char *line)
509 long unsigned sec, usec;
512 // PARA_INFO_LOG("line: %s\n", line);
515 itemnum = stat_line_valid(line);
517 PARA_WARNING_LOG("invalid status line: %s\n", line);
520 tmp = make_message("%s\n", line);
521 stat_client_write(tmp, itemnum);
523 free(stat_task->stat_item_values[itemnum]);
524 stat_task->stat_item_values[itemnum] = para_strdup(line);
525 ilen = strlen(status_item_list[itemnum]);
528 stat_task->playing = strstr(line, "playing")? 1 : 0;
531 free(stat_task->af_status);
532 stat_task->af_status = para_strdup(line + ilen + 1);
535 stat_task->offset_seconds = atoi(line + ilen + 1);
538 stat_task->length_seconds = atoi(line + ilen + 1);
540 case SI_STREAM_START:
541 if (sscanf(line + ilen + 1, "%lu.%lu", &sec, &usec) == 2) {
542 stat_task->server_stream_start.tv_sec = sec;
543 stat_task->server_stream_start.tv_usec = usec;
546 case SI_CURRENT_TIME:
547 if (sscanf(line + ilen + 1, "%lu.%lu", &sec, &usec) == 2) {
548 struct timeval tv = {sec, usec};
549 compute_time_diff(&tv);
555 static void handle_signal(int sig)
561 PARA_EMERG_LOG("terminating on signal %d\n", sig);
562 clean_exit(EXIT_FAILURE, "caught deadly signal");
567 static void try_to_close_slot(int slot_num)
569 struct slot_info *s = &slot[slot_num];
573 if (s->receiver_node && !s->receiver_node->eof)
575 if (s->fc && !s->fc->eof)
577 if (s->wng && !s->wng->eof)
579 PARA_INFO_LOG("closing slot %d \n", slot_num);
581 close_filters(s->fc);
583 close_receiver(slot_num);
584 clear_slot(slot_num);
588 * Check if any receivers/filters/writers need to be started and do so if
589 * neccessary. Since the pre_select function didn't have a chance yet to put
590 * file descriptors into the fd sets given by s, make the upcoming select()
591 * return immediately to avoid a long timeout in case we started something.
593 static void audiod_pre_select(struct sched *s, __a_unused struct task *t)
596 struct timeval min_delay = {0, 1};
599 if (audiod_status != AUDIOD_ON || !stat_task->playing)
600 return kill_all_decoders();
601 if (open_current_receiver(s))
602 s->timeout = min_delay;
604 struct slot_info *sl = &slot[i];
605 struct audio_format_info *a;
609 a = &afi[sl->format];
610 if (!sl->receiver_node)
612 if (!a->num_filters) {
613 if (sl->receiver_node->loaded && !sl->wng) {
615 s->timeout = min_delay;
619 if (sl->receiver_node->loaded && !sl->fc) {
621 s->timeout = min_delay;
624 if (sl->fc && *sl->fc->out_loaded && !sl->wng) {
626 s->timeout = min_delay;
631 static void audiod_post_select(__a_unused struct sched *s,
632 __a_unused struct task *t)
636 /* save away the current time for other users */
639 try_to_close_slot(i);
642 static void init_audiod_task(struct task *t)
644 t->pre_select = audiod_pre_select;
645 t->post_select = audiod_post_select;
646 t->event_handler = NULL;
648 sprintf(t->status, "audiod task");
651 static int parse_stream_command(const char *txt, char **cmd)
653 char *p = strchr(txt, ':');
657 return -E_MISSING_COLON;
659 FOR_EACH_AUDIO_FORMAT(i) {
660 if (strncmp(txt, audio_formats[i], strlen(audio_formats[i])))
665 return -E_UNSUPPORTED_AUDIO_FORMAT;
668 static int add_filter(int format, char *cmdline)
670 struct audio_format_info *a = &afi[format];
671 int filter_num, nf = a->num_filters;
673 filter_num = check_filter_arg(cmdline, &a->filter_conf[nf]);
676 a->filters[nf] = &filters[filter_num];
678 PARA_INFO_LOG("%s filter %d: %s\n", audio_formats[format], nf + 1,
679 a->filters[nf]->name);
683 static int init_writers(void)
687 struct audio_format_info *a;
689 init_supported_writers();
690 nw = PARA_MAX(1, conf.writer_given);
691 PARA_INFO_LOG("maximal number of writers: %d\n", nw);
692 FOR_EACH_AUDIO_FORMAT(i) {
694 a->writer_conf = para_malloc(nw * sizeof(void *));
695 a->writers = para_malloc(nw * sizeof(struct writer *));
698 for (i = 0; i < conf.writer_given; i++) {
701 ret = parse_stream_command(conf.writer_arg[i], &cmd);
706 wconf = check_writer_arg(cmd, &writer_num);
711 a->writers[nw] = &writers[writer_num];
712 a->writer_conf[nw] = wconf;
713 PARA_INFO_LOG("%s writer #%d: %s\n", audio_formats[ret],
714 nw, writer_names[writer_num]);
722 static int init_receivers(void)
724 int i, ret, receiver_num;
726 struct audio_format_info *a;
728 for (i = 0; receivers[i].name; i++) {
729 PARA_INFO_LOG("initializing %s receiver\n", receivers[i].name);
730 receivers[i].init(&receivers[i]);
732 for (i = 0; i < conf.receiver_given; i++) {
733 char *arg = conf.receiver_arg[i];
734 char *recv = strchr(arg, ':');
735 ret = -E_MISSING_COLON;
740 ret = get_audio_format_num(arg);
743 afi[ret].receiver_conf = check_receiver_arg(recv, &receiver_num);
744 if (!afi[ret].receiver_conf) {
745 ret = -E_RECV_SYNTAX;
748 afi[ret].receiver = &receivers[receiver_num];
750 /* use the first available receiver with no arguments
751 * for those audio formats for which no receiver
754 cmd = para_strdup(receivers[0].name);
755 FOR_EACH_AUDIO_FORMAT(i) {
757 if (a->receiver_conf)
759 a->receiver_conf = check_receiver_arg(cmd, &receiver_num);
760 if (!a->receiver_conf)
761 return -E_RECV_SYNTAX;
762 a->receiver = &receivers[receiver_num];
770 static int init_default_filters(void)
774 FOR_EACH_AUDIO_FORMAT(i) {
775 struct audio_format_info *a = &afi[i];
780 continue; /* no default -- nothing to to */
781 /* add "dec" to audio format name */
782 tmp = make_message("%sdec", audio_formats[i]);
783 for (j = 0; filters[j].name; j++)
784 if (!strcmp(tmp, filters[j].name))
787 ret = -E_UNSUPPORTED_FILTER;
788 if (!filters[j].name)
790 tmp = para_strdup(filters[j].name);
791 ret = add_filter(i, tmp);
795 PARA_INFO_LOG("%s -> default filter: %s\n", audio_formats[i],
802 static int init_filters(void)
806 filter_init(filters);
807 nf = PARA_MAX(1, conf.filter_given);
808 PARA_INFO_LOG("maximal number of filters: %d\n", nf);
809 FOR_EACH_AUDIO_FORMAT(i) {
810 afi[i].filter_conf = para_malloc(nf * sizeof(void *));
811 afi[i].filters = para_malloc(nf * sizeof(struct filter *));
813 if (!conf.no_default_filters_given)
814 return init_default_filters();
815 for (i = 0; i < conf.filter_given; i++) {
816 char *arg = conf.filter_arg[i];
817 char *filter_name = strchr(arg, ':');
818 ret = -E_MISSING_COLON;
823 ret = get_audio_format_num(arg);
826 ret = add_filter(ret, filter_name);
830 ret = init_default_filters(); /* use default values for the rest */
835 static int init_stream_io(void)
839 ret = init_writers();
842 ret = init_receivers();
845 ret = init_filters();
851 static int audiod_get_socket(void)
853 struct sockaddr_un unix_addr;
856 if (conf.socket_given)
857 socket_name = para_strdup(conf.socket_arg);
859 char *hn = para_hostname();
860 socket_name = make_message("/var/paraslash/audiod_socket.%s",
864 PARA_NOTICE_LOG("local socket: %s\n", socket_name);
865 if (conf.force_given)
867 fd = create_pf_socket(socket_name, &unix_addr,
868 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IWOTH);
870 PARA_EMERG_LOG("%s", "can not connect to socket\n");
871 exit(EXIT_FAILURE); /* do not unlink socket */
873 if (listen(fd , 5) < 0) {
874 PARA_EMERG_LOG("%s", "can not listen on socket\n");
875 exit(EXIT_FAILURE); /* do not unlink socket */
877 mark_fd_nonblock(fd);
881 static void signal_event_handler(struct task *t)
883 struct signal_task *st = t->private_data;
885 if (t->ret != -E_SIGNAL_CAUGHT)
886 PARA_ERROR_LOG("%s (ignored)\n", PARA_STRERROR(-t->ret));
888 handle_signal(st->signum);
891 static void signal_pre_select(struct sched *s, struct task *t)
893 struct signal_task *st = t->private_data;
895 para_fd_set(st->fd, &s->rfds, &s->max_fileno);
898 static void signal_post_select(struct sched *s, struct task *t)
900 struct signal_task *st = t->private_data;
902 if (!FD_ISSET(st->fd, &s->rfds))
904 t->ret = -E_SIGNAL_CAUGHT;
905 st->signum = para_next_signal();
908 static void signal_setup_default(struct signal_task *st)
910 st->task.pre_select = signal_pre_select;
911 st->task.post_select = signal_post_select;
912 st->task.private_data = st;
913 sprintf(st->task.status, "signal task");
916 static void command_pre_select(struct sched *s, struct task *t)
918 struct command_task *ct = t->private_data;
920 para_fd_set(ct->fd, &s->rfds, &s->max_fileno);
924 static void command_post_select(struct sched *s, struct task *t)
927 struct command_task *ct = t->private_data;
929 t->ret = 1; /* always successful */
930 if (audiod_status != AUDIOD_OFF)
931 audiod_status_dump();
932 if (!FD_ISSET(ct->fd, &s->rfds))
934 ret = handle_connect(ct->fd);
936 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret));
939 static void init_command_task(struct command_task *ct)
941 ct->task.pre_select = command_pre_select;
942 ct->task.post_select = command_post_select;
943 ct->task.event_handler = NULL;
944 ct->task.private_data = ct;
945 ct->fd = audiod_get_socket(); /* doesn't return on errors */
946 sprintf(ct->task.status, "command task");
949 static void client_task_event_handler(__a_unused struct task *t)
951 struct private_client_data *pcd = t->private_data;
952 if (t->ret == -E_HANDSHAKE_COMPLETE)
958 static void status_event_handler(__a_unused struct task *t)
960 struct timeval delay = {1, 0};
962 struct status_task *st = t->private_data;
964 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-t->ret));
966 /* avoid busy loop if server is down */
967 tv_add(now, &delay, &st->restart_barrier);
968 FOR_EACH_AUDIO_FORMAT(i)
969 afi[i].restart_barrier = st->restart_barrier;
972 static void status_pre_select(struct sched *s, struct task *t)
974 struct status_task *st = t->private_data;
976 char *argv[] = {"audiod", "stat", NULL};
978 if (st->pcd && (audiod_status == AUDIOD_OFF || st->pcd->eof))
980 if (!st->pcd && audiod_status != AUDIOD_OFF
981 && tv_diff(now, &st->restart_barrier, NULL) > 0) {
982 t->ret = client_parse_config(argc, argv, &st->pcd);
985 t->ret = client_open(st->pcd);
988 st->pcd->task.event_handler = client_task_event_handler;
989 s->timeout.tv_sec = 0;
990 s->timeout.tv_usec = 1;
994 static void status_post_select(__a_unused struct sched *s, struct task *t)
996 struct status_task *st = t->private_data;
999 if (!st->pcd || !st->pcd->loaded
1000 || st->pcd->status != CL_RECEIVING)
1002 st->pcd->loaded = for_each_line(st->pcd->buf, st->pcd->loaded,
1006 static void init_status_task(struct status_task *st)
1008 memset(st, 0, sizeof(struct status_task));
1009 st->task.pre_select = status_pre_select;
1010 st->task.post_select = status_post_select;
1011 st->task.event_handler = status_event_handler;
1012 st->task.private_data = st;
1013 st->sa_time_diff_sign = 1;
1014 sprintf(st->task.status, "status task");
1017 static void set_initial_status(void)
1019 audiod_status = AUDIOD_ON;
1020 if (!conf.mode_given)
1022 if (!strcmp(conf.mode_arg, "sb")) {
1023 audiod_status = AUDIOD_STANDBY;
1026 if (!strcmp(conf.mode_arg, "off")) {
1027 audiod_status = AUDIOD_OFF;
1030 if (strcmp(conf.mode_arg, "on"))
1031 PARA_WARNING_LOG("%s", "invalid mode\n");
1034 int main(int argc, char *argv[])
1039 struct command_task command_task_struct, *cmd_task = &command_task_struct;
1040 struct task audiod_task_struct, *audiod_task = &audiod_task_struct;
1043 audiod_cmdline_parser(argc, argv, &conf);
1044 para_drop_privileges(conf.user_arg, conf.group_arg);
1045 cf = configfile_exists();
1047 if (audiod_cmdline_parser_configfile(cf, &conf, 0, 0, 0)) {
1048 PARA_EMERG_LOG("%s", "parse error in config file\n");
1052 if (conf.logfile_given)
1053 logfile = open_log(conf.logfile_arg);
1054 log_welcome("para_audiod", conf.loglevel_arg);
1055 i = init_stream_io();
1057 PARA_EMERG_LOG("init stream io error: %s\n", PARA_STRERROR(-i));
1060 server_uptime(UPTIME_SET);
1061 set_initial_status();
1065 setup_signal_handling();
1066 signal_setup_default(sig_task);
1067 sig_task->task.event_handler = signal_event_handler;
1069 init_status_task(stat_task);
1070 init_command_task(cmd_task);
1071 init_audiod_task(audiod_task);
1073 if (conf.daemon_given)
1076 register_task(&sig_task->task);
1077 register_task(&cmd_task->task);
1078 register_task(&stat_task->task);
1079 register_task(audiod_task);
1080 s.default_timeout.tv_sec = 0;
1081 s.default_timeout.tv_usec = 99 * 1000;
1084 PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret));
1085 return EXIT_FAILURE;