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 */
21 #include <sys/time.h> /* gettimeofday */
24 #include "audiod.cmdline.h"
26 #include "close_on_fork.h"
30 #include "grab_client.cmdline.h"
31 #include "grab_client.h"
40 /** define the array of error lists needed by para_audiod */
42 /** define the array containing all supported audio formats */
43 DEFINE_AUDIO_FORMAT_ARRAY
;
46 * the possible modes of operation
48 * - off: disconnect from para_server
49 * - on: receive status information from para_server and play the audio stream
50 * - sb: only receive status information but not the audio stream
52 enum {AUDIOD_OFF
, AUDIOD_ON
, AUDIOD_STANDBY
};
54 /** defines how to handle one supported audio format */
55 struct audio_format_info
{
56 /** pointer to the receiver for this audio format */
57 struct receiver
*receiver
;
58 /** the receiver configuration */
60 /** the number of filters that should be activated for this audio format */
61 unsigned int num_filters
;
62 /** pointer to the array of filters to be activated */
63 struct filter
**filters
;
64 /** pointer to the array of filter configurations */
66 /** output of the last filter is written to stdin of this command */
68 /** do not start receiver/filters/writer before this time */
69 struct timeval restart_barrier
;
73 * describes one instance of a receiver-filter-writer chain
75 * \sa receier_node, receiver, filter, filter_node, filter_chain_info
78 /** number of the audio format in this slot */
80 /** the file descriptor of the writer */
82 /** the process id of the writer */
84 /** time of the last successful read from the receiver */
86 /** time the last write to the write fd happend */
88 /** writer start time */
89 struct timeval wstime
;
90 /** did we include \a write_fd in the fdset */
92 /** set to one if we have sent the TERM signal to \a wpid */
94 /** the receiver info associated with this slot */
95 struct receiver_node
*receiver_node
;
96 /** the active filter chain */
97 struct filter_chain
*fc
;
99 static struct slot_info slot
[MAX_STREAM_SLOTS
];
101 extern const char *status_item_list
[NUM_STAT_ITEMS
];
103 static struct gengetopt_args_info conf
;
104 static struct timeval server_stream_start
, sa_time_diff
;
105 static int playing
, current_decoder
= -1,
106 audiod_status
= AUDIOD_ON
, offset_seconds
, length_seconds
,
107 sa_time_diff_sign
= 1;
108 static char *af_status
, /* the audio format announced in server status */
109 *socket_name
, *hostname
;
110 static char *stat_item_values
[NUM_STAT_ITEMS
];
111 static FILE *logfile
;
112 static const struct timeval restart_delay
= {0, 300 * 1000};
114 static struct audio_format_info afi
[NUM_AUDIO_FORMATS
];
116 static struct signal_task signal_task_struct
, *sig_task
= &signal_task_struct
;
118 struct command_task
{
122 static struct command_task command_task_struct
, *cmd_task
= &command_task_struct
;
127 char buf
[STRINGSIZE
];
130 static struct status_task status_task_struct
, *stat_task
= &status_task_struct
;
135 static struct audiod_task audiod_task_struct
, *at
= &audiod_task_struct
;
144 /** defines one command of para_audiod */
145 struct audiod_command
{
146 /** the name of the command */
148 /** pointer to the function that handles the command */
149 int (*handler
)(int, int, char**);
150 int (*line_handler
)(int, char*);
151 /** one-line description of the command */
152 const char *description
;
153 /** summary of the command line options */
154 const char *synopsis
;
155 /** the long help text */
158 static int com_grab(int, char *);
159 static int com_cycle(int, int, char **);
160 static int com_help(int, int, char **);
161 static int com_off(int, int, char **);
162 static int com_on(int, int, char **);
163 static int com_sb(int, int, char **);
164 static int com_stat(int, int, char **);
165 static int com_term(int, int, char **);
166 static struct audiod_command cmds
[] = {
169 .handler
= com_cycle
,
170 .description
= "switch to next mode",
174 "on -> standby -> off -> on\n"
179 .line_handler
= com_grab
,
180 .description
= "grab the audio stream",
181 .synopsis
= "-- grab [grab_options]",
184 "grab ('splice') the audio stream at any position in the filter \n"
185 "chain and send that data back to the client. Try\n"
186 "\t para_audioc -- grab -h\n"
187 "for the list of available options.\n"
193 .description
= "display command list or help for given command",
194 .synopsis
= "help [command]",
197 "When I was younger, so much younger than today, I never needed\n"
198 "anybody's help in any way. But now these days are gone, I'm not so\n"
199 "self assured. Now I find I've changed my mind and opened up the doors.\n"
201 " -- Beatles: Help\n"
207 .description
= "deactivate para_audiod",
211 "Close connection to para_server and stop all decoders.\n"
217 .description
= "activate para_audiod",
221 "Establish connection to para_server, retrieve para_server's current\n"
222 "status. If playing, start corresponding decoder. Otherwise stop\n"
229 .description
= "enter standby mode",
233 "Stop all decoders but leave connection to para_server open.\n"
239 .description
= "print status information",
240 .synopsis
= "stat [item1 ...]",
243 "Dump given status items (all if none given) to stdout.\n"
249 .description
= "terminate audiod",
253 "Stop all decoders, shut down connection to para_server and exit.\n"
261 /** iterate over all slots */
262 #define FOR_EACH_SLOT(_slot) for (_slot = 0; _slot < MAX_STREAM_SLOTS; _slot++)
263 /** iterate over all supported audio formats */
264 #define FOR_EACH_AUDIO_FORMAT(af) for (af = 0; af < NUM_AUDIO_FORMATS; af++)
265 /** iterate over the array of all audiod commands */
266 #define FOR_EACH_COMMAND(c) for (c = 0; cmds[c].name; c++)
269 * get the audio format number
270 * \param name the name of the audio format
272 * \return The audio format number on success, -E_UNSUPPORTED_AUDIO_FORMAT if
273 * \a name is not a supported audio format.
275 int get_audio_format_num(char *name
)
278 FOR_EACH_AUDIO_FORMAT(i
)
279 if (!strcmp(name
, audio_formats
[i
]))
281 return -E_UNSUPPORTED_AUDIO_FORMAT
;
285 * log function. first argument is loglevel.
287 void para_log(int ll
, const char* fmt
,...)
293 char str
[MAXLINE
] = "";
295 if (ll
< conf
.loglevel_arg
)
297 outfd
= logfile
? logfile
: stderr
;
300 strftime(str
, MAXLINE
, "%b %d %H:%M:%S", tm
);
301 fprintf(outfd
, "%s %s ", str
, hostname
);
302 if (conf
.loglevel_arg
<= INFO
)
303 fprintf(outfd
, "%i ", ll
);
305 vfprintf(outfd
, fmt
, argp
);
309 static int client_write(int fd
, const char *buf
)
311 size_t len
= strlen(buf
);
312 return write(fd
, buf
, len
) != len
? -E_CLIENT_WRITE
: 1;
315 static char *get_time_string(struct timeval
*newest_stime
)
317 struct timeval now
, diff
, adj_stream_start
, tmp
;
318 int total
= 0, use_server_time
= 1;
323 return make_message("%s:\n", status_item_list
[SI_PLAY_TIME
]);
325 if (audiod_status
== AUDIOD_OFF
)
327 if (sa_time_diff_sign
> 0)
328 tv_diff(&server_stream_start
, &sa_time_diff
,
331 tv_add(&server_stream_start
, &sa_time_diff
,
333 tmp
= adj_stream_start
;
334 if (newest_stime
&& audiod_status
== AUDIOD_ON
) {
335 tv_diff(newest_stime
, &adj_stream_start
, &diff
);
336 if (tv2ms(&diff
) < 5000) {
341 gettimeofday(&now
, NULL
);
342 tv_diff(&now
, &tmp
, &diff
);
343 total
= diff
.tv_sec
+ offset_seconds
;
344 if (total
> length_seconds
)
345 total
= length_seconds
;
350 "%s:%s%d:%02d [%d:%02d] (%d%%/%d:%02d)\n",
351 status_item_list
[SI_PLAY_TIME
],
352 use_server_time
? "~" : "",
355 (length_seconds
- total
) / 60,
356 (length_seconds
- total
) % 60,
357 length_seconds
? (total
* 100 + length_seconds
/ 2) /
364 __malloc
static char *audiod_status_string(void)
366 const char *status
= (audiod_status
== AUDIOD_ON
)?
367 "on" : (audiod_status
== AUDIOD_OFF
)? "off": "sb";
368 return make_message("%s:%s\n", status_item_list
[SI_AUDIOD_STATUS
], status
);
371 static struct timeval
*wstime(void)
374 struct timeval
*max
= NULL
;
376 struct slot_info
*s
= &slot
[i
];
379 if (max
&& tv_diff(&s
->wstime
, max
, NULL
) <= 0)
385 __malloc
static char *decoder_flags(void)
388 char decoder_flags
[MAX_STREAM_SLOTS
+ 1];
391 struct slot_info
*s
= &slot
[i
];
393 if (s
->receiver_node
)
397 decoder_flags
[i
] = flag
;
399 decoder_flags
[MAX_STREAM_SLOTS
] = '\0';
400 return make_message("%s:%s\n", status_item_list
[SI_DECODER_FLAGS
],
404 static char *configfile_exists(void)
406 static char *config_file
;
409 char *home
= para_homedir();
410 config_file
= make_message("%s/.paraslash/audiod.conf", home
);
413 return file_exists(config_file
)? config_file
: NULL
;
416 static void setup_signal_handling(void)
418 sig_task
->fd
= para_signal_init();
419 PARA_INFO_LOG("signal pipe: fd %d\n", sig_task
->fd
);
420 para_install_sighandler(SIGINT
);
421 para_install_sighandler(SIGTERM
);
422 para_install_sighandler(SIGCHLD
);
423 para_install_sighandler(SIGHUP
);
424 signal(SIGPIPE
, SIG_IGN
);
427 static void audiod_status_dump(void)
429 static char *p_ts
, *p_us
, *p_as
, *p_df
;
430 struct timeval
*t
= wstime();
431 char *us
, *tmp
= get_time_string(t
);
433 if (tmp
&& (!p_ts
|| strcmp(tmp
, p_ts
)))
434 stat_client_write(tmp
, SI_PLAY_TIME
);
439 tmp
= make_message("%s:%s\n", status_item_list
[SI_AUDIOD_UPTIME
], us
);
441 if (!p_us
|| strcmp(p_us
, tmp
))
442 stat_client_write(tmp
, SI_AUDIOD_UPTIME
);
446 tmp
= audiod_status_string();
447 if (!p_as
|| strcmp(p_as
, tmp
))
448 stat_client_write(tmp
, SI_AUDIOD_STATUS
);
452 tmp
= decoder_flags();
453 if (!p_df
|| strcmp(p_df
, tmp
))
454 stat_client_write(tmp
, SI_DECODER_FLAGS
);
459 static void clear_slot(int slot_num
)
461 struct slot_info
*s
= &slot
[slot_num
];
463 PARA_INFO_LOG("clearing slot %d\n", slot_num
);
464 memset(s
, 0, sizeof(struct slot_info
));
468 static void kill_stream_writer(int slot_num
)
470 struct slot_info
*s
= &slot
[slot_num
];
472 if (s
->format
< 0 || s
->wkilled
|| s
->wpid
<= 0)
474 PARA_DEBUG_LOG("kill -TERM %d (%s stream writer in slot %d)\n",
475 s
->wpid
, audio_formats
[s
->format
], slot_num
);
476 kill(s
->wpid
, SIGTERM
);
480 static void set_restart_barrier(int format
, struct timeval
*now
)
487 gettimeofday(&tmp
, NULL
);
488 tv_add(&tmp
, &restart_delay
, &afi
[format
].restart_barrier
);
491 static void close_receiver(int slot_num
)
493 struct slot_info
*s
= &slot
[slot_num
];
494 struct audio_format_info
*a
;
496 if (s
->format
< 0 || !s
->receiver_node
)
499 PARA_NOTICE_LOG("closing %s recevier in slot %d (eof = %d)\n",
500 audio_formats
[s
->format
] , slot_num
, s
->receiver_node
->eof
);
501 if (!s
->receiver_node
->eof
)
502 unregister_task(&s
->receiver_node
->task
);
503 a
->receiver
->close(s
->receiver_node
);
504 free(s
->receiver_node
);
505 s
->receiver_node
= NULL
;
506 set_restart_barrier(s
->format
, NULL
);
509 static void kill_all_decoders(void)
514 if (slot
[i
].format
>= 0) {
515 PARA_INFO_LOG("stopping decoder in slot %d\n", i
);
516 kill_stream_writer(i
);
520 static void check_sigchld(void)
525 gettimeofday(&now
, NULL
);
528 pid
= para_reap_child();
532 struct slot_info
*s
= &slot
[i
];
536 if (pid
== s
->wpid
) {
538 lifetime
= now
.tv_sec
- s
->wstime
.tv_sec
;
539 PARA_INFO_LOG("%s stream writer in slot %d died "
541 audio_formats
[s
->format
], i
, lifetime
);
542 set_restart_barrier(s
->format
, &now
);
543 goto reap_next_child
;
546 PARA_CRIT_LOG("para_client died (pid %d)\n", pid
);
547 goto reap_next_child
;
550 static int get_empty_slot(void)
561 if (s
->write_fd
> 0 || s
->wpid
> 0)
563 if (s
->receiver_node
)
570 return -E_NO_MORE_SLOTS
;
573 static int decoder_running(int format
)
580 if (s
->format
== format
&& s
->receiver_node
)
582 if (s
->format
== format
&& s
->wpid
> 0)
588 static void close_stat_pipe(void)
592 if (stat_task
->fd
< 0)
594 PARA_NOTICE_LOG("%s", "closing status pipe\n");
595 close(stat_task
->fd
);
596 del_close_on_fork_list(stat_task
->fd
);
599 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++) {
600 free(stat_item_values
[i
]);
601 stat_item_values
[i
] = NULL
;
606 audiod_status_dump();
608 stat_item_values
[SI_STATUS_BAR
] = make_message("%s:no connection to para_server\n",
609 status_item_list
[SI_STATUS_BAR
]);
610 stat_client_write(stat_item_values
[SI_STATUS_BAR
], SI_STATUS_BAR
);
613 static void __noreturn
clean_exit(int status
, const char *msg
)
615 PARA_EMERG_LOG("%s\n", msg
);
619 if (stat_task
->fd
>= 0)
624 __malloc
static char *glob_cmd(char *cmd
)
626 char *ret
, *replacement
;
627 struct timeval tmp
, delay
, rss
; /* real stream start */
629 delay
.tv_sec
= conf
.stream_delay_arg
/ 1000;
630 delay
.tv_usec
= (conf
.stream_delay_arg
% 1000) * 1000;
631 // PARA_INFO_LOG("delay: %lu:%lu\n", delay.tv_sec, delay.tv_usec);
632 if (sa_time_diff_sign
< 0)
633 tv_add(&server_stream_start
, &sa_time_diff
, &rss
);
635 tv_diff(&server_stream_start
, &sa_time_diff
, &rss
);
636 tv_add(&rss
, &delay
, &tmp
);
637 replacement
= make_message("%lu:%lu",
638 (long unsigned)tmp
.tv_sec
,
639 (long unsigned)tmp
.tv_usec
);
640 ret
= s_a_r(cmd
, "STREAM_START", replacement
);
644 PARA_INFO_LOG("cmd: %s, repl: %s\n", cmd
, ret
);
649 /** get the number of filters for the given audio format */
650 int num_filters(int audio_format_num
)
652 return afi
[audio_format_num
].num_filters
;
655 void filter_event_handler(struct task
*t
)
657 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t
->ret
));
661 static void open_filters(int slot_num
)
663 struct slot_info
*s
= &slot
[slot_num
];
664 struct audio_format_info
*a
= &afi
[s
->format
];
665 int nf
= a
->num_filters
;
667 static int output_eof
; /* FIXME */
669 s
->fc
= para_calloc(sizeof(struct filter_chain
));
670 INIT_LIST_HEAD(&s
->fc
->filters
);
673 s
->fc
->inbuf
= s
->receiver_node
->buf
;
674 s
->fc
->in_loaded
= &s
->receiver_node
->loaded
;
675 s
->fc
->input_eof
= &s
->receiver_node
->eof
;
676 s
->fc
->output_eof
= &output_eof
;
679 s
->fc
->task
.pre_select
= filter_pre_select
;
680 s
->fc
->task
.event_handler
= filter_event_handler
;
681 s
->fc
->task
.private_data
= s
->fc
;
682 s
->fc
->task
.flags
= 0;
684 sprintf(s
->fc
->task
.status
, "filter chain");
685 for (i
= 0; i
< nf
; i
++) {
686 struct filter_node
*fn
= para_calloc(sizeof(struct filter_node
));
687 fn
->conf
= a
->filter_conf
[i
];
689 fn
->filter
= a
->filters
[i
];
690 INIT_LIST_HEAD(&fn
->callbacks
);
691 list_add_tail(&fn
->node
, &s
->fc
->filters
);
692 fn
->filter
->open(fn
);
693 PARA_NOTICE_LOG("%s filter %d/%d (%s) started in slot %d\n",
694 audio_formats
[s
->format
], i
+ 1, nf
,
695 fn
->filter
->name
, slot_num
);
696 s
->fc
->outbuf
= fn
->buf
;
697 s
->fc
->out_loaded
= &fn
->loaded
;
699 register_task(&s
->fc
->task
);
700 // PARA_DEBUG_LOG("output loaded for filter chain %p: %p\n", s->fc,
701 // s->fc->out_loaded);
704 static struct filter_node
*find_filter_node(int slot_num
, int format
, int filternum
)
706 struct filter_node
*fn
;
710 struct slot_info
*s
= &slot
[i
];
711 if (s
->format
< 0 || !s
->fc
)
713 if (slot_num
>= 0 && slot_num
!= i
)
715 if (format
>= 0 && s
->format
!= format
)
717 if (num_filters(i
) < filternum
)
721 list_for_each_entry(fn
, &s
->fc
->filters
, node
)
722 if (filternum
<= 0 || j
++ == filternum
)
729 static void start_stream_writer(int slot_num
)
731 int ret
, fds
[3] = {1, -1, -1};
732 struct slot_info
*s
= &slot
[slot_num
];
733 struct audio_format_info
*a
= &afi
[s
->format
];
737 glob
= glob_cmd(a
->write_cmd
);
739 glob
= para_strdup("para_write -w alsa");
740 PARA_INFO_LOG("starting stream writer: %s\n", glob
);
741 open_filters(slot_num
);
742 ret
= para_exec_cmdline_pid(&s
->wpid
, glob
, fds
);
745 PARA_ERROR_LOG("exec failed (%d)\n", ret
);
748 s
->write_fd
= fds
[0];
749 add_close_on_fork_list(s
->write_fd
);
750 /* we write to this fd in do_select, so we need non-blocking */
751 mark_fd_nonblock(s
->write_fd
);
752 gettimeofday(&s
->wstime
, NULL
);
753 current_decoder
= slot_num
;
754 activate_inactive_grab_clients(slot_num
, s
->format
, &s
->fc
->filters
);
757 void rn_event_handler(struct task
*t
)
759 // struct receiver_node *rn = t->private_data;
760 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t
->ret
));
763 static void open_receiver(int format
)
765 struct audio_format_info
*a
= &afi
[format
];
768 struct receiver_node
*rn
;
770 slot_num
= get_empty_slot();
772 clean_exit(EXIT_FAILURE
, PARA_STRERROR(-slot_num
));
775 gettimeofday(&s
->rtime
, NULL
);
777 s
->receiver_node
= para_calloc(sizeof(struct receiver_node
));
778 rn
= s
->receiver_node
;
779 rn
->receiver
= a
->receiver
;
780 rn
->conf
= a
->receiver_conf
;
781 ret
= a
->receiver
->open(s
->receiver_node
);
783 PARA_ERROR_LOG("failed to open receiver (%s)\n",
784 PARA_STRERROR(-ret
));
785 free(s
->receiver_node
);
786 s
->receiver_node
= NULL
;
789 PARA_NOTICE_LOG("started %s: %s receiver in slot %d\n",
790 audio_formats
[s
->format
], a
->receiver
->name
, slot_num
);
791 rn
->task
.private_data
= s
->receiver_node
;
792 PARA_NOTICE_LOG("rn = %p\n", rn
->task
.private_data
);
793 rn
->task
.pre_select
= a
->receiver
->pre_select
;
794 rn
->task
.post_select
= a
->receiver
->post_select
;
795 rn
->task
.event_handler
= rn_event_handler
;
797 sprintf(rn
->task
.status
, "receiver node");
798 register_task(&rn
->task
);
801 static int is_frozen(int format
)
804 struct audio_format_info
*a
= &afi
[format
];
806 gettimeofday(&now
, NULL
);
807 return (tv_diff(&now
, &a
->restart_barrier
, NULL
) > 0)? 0 : 1;
810 static void start_current_receiver(void)
816 i
= get_audio_format_num(af_status
);
819 if ((decoder_running(i
) & 1) || is_frozen(i
))
824 static void compute_time_diff(const struct timeval
*status_time
)
826 struct timeval now
, tmp
, diff
;
829 const struct timeval max_deviation
= {0, 500 * 1000};
830 const int time_smooth
= 5;
832 gettimeofday(&now
, NULL
);
833 sign
= tv_diff(status_time
, &now
, &diff
);
834 // PARA_NOTICE_LOG("%s: sign = %i, sa_time_diff_sign = %i\n", __func__,
835 // sign, sa_time_diff_sign);
837 sa_time_diff_sign
= sign
;
843 int s
= tv_diff(&diff
, &sa_time_diff
, &tmp
);
844 if (tv_diff(&max_deviation
, &tmp
, NULL
) < 0)
845 PARA_WARNING_LOG("time diff jump: %lims\n",
849 sa_time_diff_sign
= tv_convex_combination(
850 sa_time_diff_sign
* time_smooth
, &sa_time_diff
,
851 count
> 10? sign
: sign
* time_smooth
, &diff
,
854 PARA_INFO_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
857 sa_time_diff_sign
? "+" : "-",
862 static void check_stat_line(char *line
)
866 long unsigned sec
, usec
;
869 // PARA_INFO_LOG("line: %s\n", line);
872 itemnum
= stat_line_valid(line
);
874 PARA_WARNING_LOG("invalid status line: %s\n", line
);
877 tmp
= make_message("%s\n", line
);
878 stat_client_write(tmp
, itemnum
);
880 free(stat_item_values
[itemnum
]);
881 stat_item_values
[itemnum
] = para_strdup(line
);
882 ilen
= strlen(status_item_list
[itemnum
]);
885 playing
= strstr(line
, "playing")? 1 : 0;
889 af_status
= para_strdup(line
+ ilen
+ 1);
892 offset_seconds
= atoi(line
+ ilen
+ 1);
895 length_seconds
= atoi(line
+ ilen
+ 1);
897 case SI_STREAM_START
:
898 if (sscanf(line
+ ilen
+ 1, "%lu.%lu", &sec
, &usec
) == 2) {
899 server_stream_start
.tv_sec
= sec
;
900 server_stream_start
.tv_usec
= usec
;
903 case SI_CURRENT_TIME
:
904 if (sscanf(line
+ ilen
+ 1, "%lu.%lu", &sec
, &usec
) == 2) {
905 struct timeval tv
= {sec
, usec
};
906 compute_time_diff(&tv
);
912 static void handle_signal(int sig
)
916 return check_sigchld();
920 PARA_EMERG_LOG("terminating on signal %d\n", sig
);
921 clean_exit(EXIT_FAILURE
, "caught deadly signal");
926 static void check_timeouts(void)
929 int slot_num
, timeout
= conf
.stream_timeout_arg
;
931 gettimeofday(&now
, NULL
);
932 FOR_EACH_SLOT(slot_num
) {
933 struct slot_info
*s
= &slot
[slot_num
];
936 /* check read time */
937 if (s
->receiver_node
&&
938 now
.tv_sec
> s
->rtime
.tv_sec
+ timeout
) {
939 PARA_INFO_LOG("%s input buffer (slot %d) not ready\n",
940 audio_formats
[s
->format
], slot_num
);
941 s
->receiver_node
->eof
= 1;
943 /* check write time */
944 if (s
->wpid
> 0 && !s
->wkilled
&&
945 now
.tv_sec
> s
->wtime
.tv_sec
+ timeout
) {
946 PARA_INFO_LOG("%s output buffer (slot %d) not ready\n",
947 audio_formats
[s
->format
], slot_num
);
948 kill_stream_writer(slot_num
);
953 static size_t get_loaded_bytes(int slot_num
)
956 struct slot_info
*s
= &slot
[slot_num
];
957 struct receiver_node
*rn
= s
->receiver_node
;
962 if (afi
[s
->format
].num_filters
) {
964 loaded
= *s
->fc
->out_loaded
;
973 static void close_writer(int slot_num
)
975 struct slot_info
*s
= &slot
[slot_num
];
976 if (s
->write_fd
> 0) {
977 PARA_INFO_LOG("slot %d: closing write fd %d\n", slot_num
,
980 del_close_on_fork_list(s
->write_fd
);
984 *s
->fc
->output_eof
= 1; /* FIXME */
988 static void close_decoder_if_idle(int slot_num
)
990 struct slot_info
*s
= &slot
[slot_num
];
991 struct receiver_node
*rn
= s
->receiver_node
;
997 if (!rn
->eof
&& !s
->fc
->eof
&& s
->wpid
> 0)
999 if (!s
->fc
->eof
&& s
->wpid
> 0 && get_loaded_bytes(slot_num
))
1001 close_writer(slot_num
);
1003 return; /* wait until writer dies before closing filters */
1004 PARA_INFO_LOG("closing all filters in slot %d (filter_chain %p)\n",
1006 close_filters(s
->fc
);
1008 close_receiver(slot_num
);
1009 clear_slot(slot_num
);
1012 static void audiod_pre_select(struct sched
*s
, struct task
*t
)
1016 if (audiod_status
!= AUDIOD_ON
)
1017 kill_all_decoders();
1019 start_current_receiver();
1022 struct audio_format_info
*a
;
1023 struct receiver_node
*rn
;
1025 close_decoder_if_idle(i
);
1027 if (slot
[i
].format
< 0)
1029 a
= &afi
[slot
[i
].format
];
1030 rn
= slot
[i
].receiver_node
;
1031 if (rn
&& rn
->loaded
&& !slot
[i
].wpid
) {
1032 PARA_INFO_LOG("no writer in slot %d\n", i
);
1033 start_stream_writer(i
);
1035 if (slot
[i
].write_fd
<= 0)
1037 if (!get_loaded_bytes(i
))
1039 para_fd_set(slot
[i
].write_fd
, &s
->wfds
, &s
->max_fileno
);
1044 static int write_audio_data(int slot_num
)
1046 struct slot_info
*s
= &slot
[slot_num
];
1047 struct audio_format_info
*a
= &afi
[s
->format
];
1048 struct receiver_node
*rn
= s
->receiver_node
;
1053 if (a
->num_filters
) {
1054 buf
= &s
->fc
->outbuf
;
1055 len
= s
->fc
->out_loaded
;
1060 PARA_DEBUG_LOG("writing %p (%zd bytes)\n", *buf
, *len
);
1061 ret
= write(s
->write_fd
, *buf
, *len
);
1062 PARA_DEBUG_LOG("wrote %d/%zd\n", ret
, *len
);
1064 PARA_WARNING_LOG("write error in slot %d (fd %d): %s\n",
1065 slot_num
, s
->write_fd
, strerror(errno
));
1067 close_writer(slot_num
);
1068 // s->fc->error = E_WRITE_AUDIO_DATA;
1069 } else if (ret
!= *len
) {
1070 PARA_DEBUG_LOG("partial %s write (%i/%zd) for slot %d\n",
1071 audio_formats
[s
->format
], ret
, *len
, slot_num
);
1073 memmove(*buf
, *buf
+ ret
, *len
);
1077 gettimeofday(&s
->wtime
, NULL
);
1081 static void audiod_post_select(struct sched
*s
, struct task
*t
)
1086 struct receiver_node
*rn
= slot
[i
].receiver_node
;
1088 if (rn
&& rn
->loaded
)
1089 slot
[i
].rtime
= s
->now
;
1090 if (slot
[i
].write_fd
<= 0 || !slot
[i
].wcheck
1091 || !FD_ISSET(slot
[i
].write_fd
, &s
->wfds
))
1093 ret
= write_audio_data(i
);
1097 static void init_audiod_task(struct audiod_task
*at
)
1099 at
->task
.pre_select
= audiod_pre_select
;
1100 at
->task
.post_select
= audiod_post_select
;
1101 at
->task
.private_data
= at
;
1103 sprintf(at
->task
.status
, "audiod task");
1106 static int parse_stream_command(const char *txt
, char **cmd
)
1108 char *p
= strchr(txt
, ':');
1112 return -E_MISSING_COLON
;
1114 FOR_EACH_AUDIO_FORMAT(i
) {
1115 if (strncmp(txt
, audio_formats
[i
], strlen(audio_formats
[i
])))
1120 return -E_UNSUPPORTED_AUDIO_FORMAT
;
1123 static int add_filter(int format
, char *cmdline
)
1125 struct audio_format_info
*a
= &afi
[format
];
1126 int filter_num
, nf
= a
->num_filters
;
1128 filter_num
= check_filter_arg(cmdline
, &a
->filter_conf
[nf
]);
1131 a
->filters
[nf
] = &filters
[filter_num
];
1133 PARA_INFO_LOG("%s filter %d: %s\n", audio_formats
[format
], nf
+ 1,
1134 a
->filters
[nf
]->name
);
1138 static int setup_default_filters(void)
1142 FOR_EACH_AUDIO_FORMAT(i
) {
1143 struct audio_format_info
*a
= &afi
[i
];
1148 /* add "dec" to audio format name */
1149 tmp
= make_message("%sdec", audio_formats
[i
]);
1150 for (j
= 0; filters
[j
].name
; j
++)
1151 if (!strcmp(tmp
, filters
[j
].name
))
1154 ret
= -E_UNSUPPORTED_FILTER
;
1155 if (!filters
[j
].name
)
1157 tmp
= para_strdup(filters
[j
].name
);
1158 ret
= add_filter(i
, tmp
);
1162 PARA_INFO_LOG("%s -> default filter: %s\n", audio_formats
[i
],
1164 ret
= add_filter(i
, "wav");
1167 PARA_INFO_LOG("%s -> default filter: wav\n", audio_formats
[i
]);
1173 static int init_stream_io(void)
1175 int i
, ret
, receiver_num
, nf
;
1178 for (i
= 0; i
< conf
.stream_write_cmd_given
; i
++) {
1179 ret
= parse_stream_command(conf
.stream_write_cmd_arg
[i
], &cmd
);
1182 afi
[ret
].write_cmd
= para_strdup(cmd
);
1183 PARA_INFO_LOG("%s write command: %s\n", audio_formats
[ret
], afi
[ret
].write_cmd
);
1185 for (i
= 0; receivers
[i
].name
; i
++) {
1186 PARA_INFO_LOG("initializing %s receiver\n", receivers
[i
].name
);
1187 receivers
[i
].init(&receivers
[i
]);
1189 for (i
= 0; i
< conf
.receiver_given
; i
++) {
1190 char *arg
= conf
.receiver_arg
[i
];
1191 char *recv
= strchr(arg
, ':');
1192 ret
= -E_MISSING_COLON
;
1197 ret
= get_audio_format_num(arg
);
1200 afi
[ret
].receiver_conf
= check_receiver_arg(recv
, &receiver_num
);
1201 if (!afi
[ret
].receiver_conf
) {
1202 ret
= -E_RECV_SYNTAX
;
1205 afi
[ret
].receiver
= &receivers
[receiver_num
];
1207 /* use the first available receiver with no arguments
1208 * for those audio formats for which no receiver
1211 cmd
= para_strdup(receivers
[0].name
);
1212 FOR_EACH_AUDIO_FORMAT(i
) {
1213 struct audio_format_info
*a
= &afi
[i
];
1214 if (a
->receiver_conf
)
1216 a
->receiver_conf
= check_receiver_arg(cmd
, &receiver_num
);
1217 if (!a
->receiver_conf
)
1218 return -E_RECV_SYNTAX
;
1219 a
->receiver
= &receivers
[receiver_num
];
1223 filter_init(filters
);
1224 nf
= PARA_MAX(2, conf
.filter_given
) + 1;
1225 PARA_INFO_LOG("allocating space for %d filters\n", nf
);
1226 FOR_EACH_AUDIO_FORMAT(i
) {
1227 afi
[i
].filter_conf
= para_malloc(nf
* sizeof(char *));
1228 afi
[i
].filters
= para_malloc(nf
* sizeof(struct filter
*));
1230 if (!conf
.no_default_filters_given
)
1231 return setup_default_filters();
1232 for (i
= 0; i
< conf
.filter_given
; i
++) {
1233 char *arg
= conf
.filter_arg
[i
];
1234 char *filter_name
= strchr(arg
, ':');
1235 ret
= -E_MISSING_COLON
;
1238 *filter_name
= '\0';
1240 ret
= get_audio_format_num(arg
);
1243 ret
= add_filter(ret
, filter_name
);
1252 static int dump_commands(int fd
)
1254 char *buf
= para_strdup(""), *tmp
= NULL
;
1258 FOR_EACH_COMMAND(i
) {
1259 tmp
= make_message("%s%s\t%s\n", buf
, cmds
[i
].name
,
1260 cmds
[i
].description
);
1264 ret
= client_write(fd
, buf
);
1270 * command handlers don't close their fd on errors (ret < 0) so that
1271 * its caller can send an error message. Otherwise (ret >= 0) it's up
1272 * to each individual command to close the fd if necessary.
1275 static int com_help(int fd
, int argc
, char **argv
)
1279 const char *dflt
= "No such command. Available commands:\n";
1282 ret
= dump_commands(fd
);
1285 FOR_EACH_COMMAND(i
) {
1286 if (strcmp(cmds
[i
].name
, argv
[1]))
1289 "NAME\n\t%s -- %s\n"
1290 "SYNOPSIS\n\tpara_audioc %s\n"
1291 "DESCRIPTION\n%s\n",
1293 cmds
[i
].description
,
1297 ret
= client_write(fd
, buf
);
1301 ret
= client_write(fd
, dflt
);
1303 ret
= dump_commands(fd
);
1310 static int com_stat(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1314 long unsigned mask
= ~0LU;
1318 for (i
= 1; i
< argc
; i
++) {
1319 ret
= stat_item_valid(argv
[i
]);
1325 PARA_INFO_LOG("mask: 0x%lx\n", mask
);
1326 if (mask
& (1 << SI_PLAY_TIME
)) {
1327 struct timeval
*t
= wstime();
1328 char *ts
= get_time_string(t
);
1330 ret
= client_write(fd
, ts
);
1336 if (mask
& (1 << SI_AUDIOD_UPTIME
)) {
1337 char *tmp
, *us
= uptime_str();
1338 tmp
= make_message("%s:%s\n",
1339 status_item_list
[SI_AUDIOD_UPTIME
], us
);
1341 ret
= client_write(fd
, tmp
);
1346 if (mask
& (1 << SI_AUDIOD_STATUS
)) {
1347 char *s
= audiod_status_string();
1348 ret
= client_write(fd
, s
);
1353 if (mask
& (1 << SI_DECODER_FLAGS
)) {
1354 char *df
=decoder_flags();
1355 ret
= client_write(fd
, df
);
1361 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++) {
1363 if (!((1 << i
) & mask
))
1365 v
= stat_item_values
[i
];
1366 tmp
= make_message("%s%s%s", buf
? buf
: "",
1367 v
? v
: "", v
? "\n" : "");
1371 ret
= client_write(fd
, buf
);
1374 ret
= stat_client_add(fd
, mask
);
1380 static char *list_filters(void)
1383 char *tmp
, *msg
= make_message("format\tnum\tcmd\n");
1385 FOR_EACH_AUDIO_FORMAT(i
) {
1386 for (j
= 0; j
< afi
[i
].num_filters
; j
++) {
1387 tmp
= make_message("%s\t%i\t%s\n",
1388 afi
[i
].name
, j
, afi
[i
].filter_cmds
[j
]);
1389 msg
= para_strcat(msg
, tmp
);
1392 tmp
= make_message("%s\t%i\t%s\n", afi
[i
].name
,
1393 j
, afi
[i
].write_cmd
);
1394 msg
= para_strcat(msg
, tmp
);
1402 static int com_grab(int fd
, char *cmdline
)
1404 struct grab_client
*gc
;
1405 struct filter_node
*fn
;
1409 gc
= grab_client_new(fd
, cmdline
, &err
);
1412 fn
= find_filter_node(gc
->conf
->slot_arg
, gc
->audio_format_num
, gc
->conf
->filter_num_arg
);
1414 activate_grab_client(gc
, fn
);
1417 if (err
!= -E_GC_HELP_GIVEN
&& err
!= -E_GC_VERSION_GIVEN
)
1419 if (err
== -E_GC_HELP_GIVEN
) {
1420 msg
= make_message("%s\n\n", grab_client_args_info_usage
);
1421 for (i
= 0; grab_client_args_info_help
[i
]; i
++) {
1422 char *tmp
= make_message("%s%s\n", msg
,
1423 grab_client_args_info_help
[i
]);
1428 msg
= make_message("%s %s\n",
1429 GRAB_CLIENT_CMDLINE_PARSER_PACKAGE
,
1430 GRAB_CLIENT_CMDLINE_PARSER_VERSION
);
1431 err
= client_write(fd
, msg
);
1439 static int __noreturn
com_term(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1442 clean_exit(EXIT_SUCCESS
, "terminating on user request");
1445 static int com_on(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1447 audiod_status
= AUDIOD_ON
;
1452 static int com_off(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1454 audiod_status
= AUDIOD_OFF
;
1459 static int com_sb(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1461 audiod_status
= AUDIOD_STANDBY
;
1466 static int com_cycle(int fd
, int argc
, char **argv
)
1468 switch (audiod_status
) {
1470 return com_sb(fd
, argc
, argv
);
1473 return com_on(fd
, argc
, argv
);
1475 case AUDIOD_STANDBY
:
1476 return com_off(fd
, argc
, argv
);
1483 static int check_perms(uid_t uid
)
1487 if (!conf
.user_allow_given
)
1489 for (i
= 0; i
< conf
.user_allow_given
; i
++)
1490 if (uid
== conf
.user_allow_arg
[i
])
1492 return -E_UCRED_PERM
;
1495 static int handle_connect(void)
1497 int i
, argc
, ret
, clifd
= -1;
1498 char *cmd
= NULL
, *p
, *buf
= para_calloc(MAXLINE
), **argv
= NULL
;
1499 struct sockaddr_un unix_addr
;
1501 ret
= para_accept(cmd_task
->fd
, &unix_addr
, sizeof(struct sockaddr_un
));
1505 ret
= recv_cred_buffer(clifd
, buf
, MAXLINE
- 1);
1508 PARA_INFO_LOG("connection from user %i, buf: %s\n", ret
, buf
);
1509 ret
= check_perms(ret
);
1512 ret
= -E_INVALID_AUDIOD_CMD
;
1513 cmd
= para_strdup(buf
);
1514 p
= strchr(cmd
, '\n');
1521 for (i
= 0; cmds
[i
].name
; i
++) {
1523 if (strcmp(cmds
[i
].name
, cmd
))
1525 if (cmds
[i
].handler
) {
1526 argc
= split_args(buf
, &argv
, "\n");
1527 PARA_INFO_LOG("argv[0]: %s, argc= %d\n", argv
[0], argc
);
1528 ret
= cmds
[i
].handler(clifd
, argc
, argv
);
1531 for (j
= 0; p
[j
]; j
++)
1534 PARA_INFO_LOG("cmd: %s, options: %s\n", cmd
, p
);
1535 ret
= cmds
[i
].line_handler(clifd
, p
);
1538 ret
= -E_INVALID_AUDIOD_CMD
; /* cmd not found */
1543 if (clifd
> 0 && ret
< 0 && ret
!= -E_CLIENT_WRITE
) {
1544 char *tmp
= make_message("%s\n", PARA_STRERROR(-ret
));
1545 client_write(clifd
, tmp
);
1552 static void audiod_get_socket(void)
1554 struct sockaddr_un unix_addr
;
1556 if (conf
.socket_given
)
1557 socket_name
= para_strdup(conf
.socket_arg
);
1559 char *hn
= para_hostname();
1560 socket_name
= make_message("/var/paraslash/audiod_socket.%s",
1564 PARA_NOTICE_LOG("connecting to local socket %s\n", socket_name
);
1565 if (conf
.force_given
)
1566 unlink(socket_name
);
1567 cmd_task
->fd
= create_pf_socket(socket_name
, &unix_addr
,
1568 S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IWGRP
| S_IWOTH
);
1569 if (cmd_task
->fd
< 0) {
1570 PARA_EMERG_LOG("%s", "can not connect to socket\n");
1571 exit(EXIT_FAILURE
); /* do not unlink socket */
1573 if (listen(cmd_task
->fd
, 5) < 0) {
1574 PARA_EMERG_LOG("%s", "can not listen on socket\n");
1575 exit(EXIT_FAILURE
); /* do not unlink socket */
1577 add_close_on_fork_list(cmd_task
->fd
);
1580 static int open_stat_pipe(void)
1582 int ret
, fd
[3] = {-1, 1, 0};
1584 ret
= para_exec_cmdline_pid(&pid
, BINDIR
"/para_client stat", fd
);
1587 PARA_NOTICE_LOG("stat pipe opened, fd %d\n", ret
);
1588 add_close_on_fork_list(ret
);
1590 clean_exit(EXIT_FAILURE
, "failed to open status pipe");
1594 void signal_event_handler(struct task
*t
)
1596 struct signal_task
*st
= t
->private_data
;
1597 handle_signal(st
->signum
);
1600 void signal_pre_select(struct sched
*s
, struct task
*t
)
1602 struct signal_task
*st
= t
->private_data
;
1604 para_fd_set(st
->fd
, &s
->rfds
, &s
->max_fileno
);
1607 void signal_post_select(struct sched
*s
, struct task
*t
)
1609 struct signal_task
*st
= t
->private_data
;
1611 if (!FD_ISSET(st
->fd
, &s
->rfds
))
1613 t
->ret
= -E_SIGNAL_CAUGHT
;
1614 st
->signum
= para_next_signal();
1617 void signal_setup_default(struct signal_task
*st
)
1619 st
->task
.pre_select
= signal_pre_select
;
1620 st
->task
.post_select
= signal_post_select
;
1621 st
->task
.private_data
= st
;
1623 sprintf(st
->task
.status
, "signal task");
1626 static void command_pre_select(struct sched
*s
, struct task
*t
)
1628 struct command_task
*ct
= t
->private_data
;
1629 para_fd_set(ct
->fd
, &s
->rfds
, &s
->max_fileno
);
1633 static void command_post_select(struct sched
*s
, struct task
*t
)
1636 struct command_task
*ct
= t
->private_data
;
1638 if (audiod_status
!= AUDIOD_OFF
)
1639 audiod_status_dump();
1640 t
->ret
= 1; /* always successful */
1641 if (!FD_ISSET(ct
->fd
, &s
->rfds
))
1643 ret
= handle_connect();
1645 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret
));
1648 void init_command_task(struct command_task
*ct
)
1650 ct
->task
.pre_select
= command_pre_select
;
1651 ct
->task
.post_select
= command_post_select
;
1652 ct
->task
.private_data
= ct
;
1654 sprintf(ct
->task
.status
, "command task");
1657 static void status_pre_select(struct sched
*s
, struct task
*t
)
1659 struct status_task
*st
= t
->private_data
;
1661 if (st
->fd
>= 0 && audiod_status
== AUDIOD_OFF
)
1663 if (st
->fd
< 0 && audiod_status
!= AUDIOD_OFF
) {
1664 st
->fd
= open_stat_pipe();
1668 if (st
->fd
>= 0 && audiod_status
!= AUDIOD_OFF
)
1669 para_fd_set(st
->fd
, &s
->rfds
, &s
->max_fileno
);
1672 static void status_post_select(struct sched
*s
, struct task
*t
)
1674 struct status_task
*st
= t
->private_data
;
1678 if (st
->fd
< 0 || !FD_ISSET(st
->fd
, &s
->rfds
))
1680 ret
= read(st
->fd
, st
->buf
+ st
->loaded
,
1681 STRINGSIZE
- 1 - st
->loaded
);
1684 /* avoid busy loop if server is down */
1685 while (sleep(1) > 0)
1688 st
->buf
[ret
+ st
->loaded
] = '\0';
1689 st
->loaded
= for_each_line(st
->buf
, ret
+ st
->loaded
,
1694 static void init_status_task(struct status_task
*st
)
1696 st
->task
.pre_select
= status_pre_select
;
1697 st
->task
.post_select
= status_post_select
;
1698 st
->task
.private_data
= st
;
1703 sprintf(st
->task
.status
, "status task");
1709 /* TODO: move everything before the select call to pre_select() */
1710 static void __noreturn
audiod_mainloop(void)
1713 int ret
, max_fileno
, sbo
= 0;
1714 char status_buf
[STRINGSIZE
] = "";
1723 /* always check signal pipe and the local socket */
1724 para_fd_set(signal_pipe
, &rfds
, &max_fileno
);
1725 para_fd_set(audiod_socket
, &rfds
, &max_fileno
);
1727 if (audiod_status
!= AUDIOD_ON
)
1728 kill_all_decoders();
1730 start_current_receiver();
1732 set_stream_fds(&wfds
, &max_fileno
);
1734 if (stat_pipe
>= 0 && audiod_status
== AUDIOD_OFF
)
1736 if (stat_pipe
< 0 && audiod_status
!= AUDIOD_OFF
) {
1737 stat_pipe
= open_stat_pipe();
1739 status_buf
[0] = '\0';
1741 if (stat_pipe
>= 0 && audiod_status
!= AUDIOD_OFF
)
1742 para_fd_set(stat_pipe
, &rfds
, &max_fileno
);
1745 tv
.tv_usec
= 200 * 1000;
1746 audiod_pre_select(&rfds
, &wfds
, &tv
, &max_fileno
);
1747 ret
= para_select(max_fileno
+ 1, &rfds
, &wfds
, &tv
);
1750 if (audiod_status
!= AUDIOD_OFF
)
1751 audiod_status_dump();
1752 audiod_post_select(ret
, &rfds
, &wfds
);
1753 /* read status pipe */
1754 if (stat_pipe
>=0 && FD_ISSET(stat_pipe
, &rfds
)) {
1755 ret
= read(stat_pipe
, status_buf
+ sbo
, STRINGSIZE
- 1 - sbo
);
1758 /* avoid busy loop if server is down */
1759 while (sleep(1) > 0)
1762 status_buf
[ret
+ sbo
] = '\0';
1763 sbo
= for_each_line(status_buf
, ret
+ sbo
,
1768 if (FD_ISSET(audiod_socket
, &rfds
)) {
1769 ret
= handle_connect();
1771 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret
));
1775 if (FD_ISSET(signal_pipe
, &rfds
)) {
1776 int sig_nr
= para_next_signal();
1778 handle_signal(sig_nr
);
1784 static void set_initial_status(void)
1786 audiod_status
= AUDIOD_ON
;
1787 if (!conf
.mode_given
)
1789 if (!strcmp(conf
.mode_arg
, "sb")) {
1790 audiod_status
= AUDIOD_STANDBY
;
1793 if (!strcmp(conf
.mode_arg
, "off")) {
1794 audiod_status
= AUDIOD_OFF
;
1797 if (strcmp(conf
.mode_arg
, "on"))
1798 PARA_WARNING_LOG("%s", "invalid mode\n");
1801 int main(int argc
, char *argv
[])
1810 hostname
= para_hostname();
1811 cmdline_parser(argc
, argv
, &conf
);
1812 para_drop_privileges(conf
.user_arg
, conf
.group_arg
);
1813 cf
= configfile_exists();
1815 if (cmdline_parser_configfile(cf
, &conf
, 0, 0, 0)) {
1816 PARA_EMERG_LOG("%s", "parse error in config file\n");
1820 if (conf
.logfile_given
)
1821 logfile
= open_log(conf
.logfile_arg
);
1822 log_welcome("para_audiod", conf
.loglevel_arg
);
1823 i
= init_stream_io();
1825 PARA_EMERG_LOG("init stream io error: %s\n", PARA_STRERROR(-i
));
1828 server_uptime(UPTIME_SET
);
1829 set_initial_status();
1833 setup_signal_handling();
1834 if (conf
.daemon_given
)
1836 audiod_get_socket(); /* doesn't return on errors */
1838 signal_setup_default(sig_task
);
1839 sig_task
->task
.event_handler
= signal_event_handler
;
1841 init_status_task(stat_task
);
1842 init_command_task(cmd_task
);
1843 init_audiod_task(at
);
1845 register_task(&sig_task
->task
);
1846 register_task(&cmd_task
->task
);
1847 register_task(&stat_task
->task
);
1848 register_task(&at
->task
);
1849 s
.default_timeout
.tv_sec
= 0;
1850 s
.default_timeout
.tv_usec
= 99 * 1000;
1853 PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret
));
1854 return EXIT_FAILURE
;