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 #include "write_common.h"
42 /** define the array of error lists needed by para_audiod */
44 /** define the array containing all supported audio formats */
45 DEFINE_AUDIO_FORMAT_ARRAY
;
48 * the possible modes of operation
50 * - off: disconnect from para_server
51 * - on: receive status information from para_server and play the audio stream
52 * - sb: only receive status information but not the audio stream
54 enum {AUDIOD_OFF
, AUDIOD_ON
, AUDIOD_STANDBY
};
56 /** defines how to handle one supported audio format */
57 struct audio_format_info
{
58 /** pointer to the receiver for this audio format */
59 struct receiver
*receiver
;
60 /** the receiver configuration */
62 /** the number of filters that should be activated for this audio format */
63 unsigned int num_filters
;
64 /** pointer to the array of filters to be activated */
65 struct filter
**filters
;
66 /** pointer to the array of filter configurations */
68 /** the number of filters that should be activated for this audio format */
69 unsigned int num_writers
;
70 /** pointer to the array of writers to be activated */
71 struct writer
**writers
;
72 /** pointer to the array of writer configurations */
74 /** do not start receiver/filters/writer before this time */
75 struct timeval restart_barrier
;
79 * describes one instance of a receiver-filter-writer chain
81 * \sa receier_node, receiver, filter, filter_node, filter_chain, writer,
82 * writer_node, writer_node_group.
85 /** number of the audio format in this slot */
87 /** time of the last successful read from the receiver */
89 /** time the last write to the write fd happend */
91 /** writer start time */
92 struct timeval wstime
;
93 /** the receiver info associated with this slot */
94 struct receiver_node
*receiver_node
;
95 /** the active filter chain */
96 struct filter_chain
*fc
;
97 /** the active writer node group */
98 struct writer_node_group
*wng
;
100 static struct slot_info slot
[MAX_STREAM_SLOTS
];
102 extern const char *status_item_list
[NUM_STAT_ITEMS
];
104 static struct gengetopt_args_info conf
;
105 static struct timeval server_stream_start
, sa_time_diff
;
106 static int playing
, current_decoder
= -1,
107 audiod_status
= AUDIOD_ON
, offset_seconds
, length_seconds
,
108 sa_time_diff_sign
= 1;
109 static char *af_status
, /* the audio format announced in server status */
110 *socket_name
, *hostname
;
111 static char *stat_item_values
[NUM_STAT_ITEMS
];
112 static FILE *logfile
;
113 static const struct timeval restart_delay
= {0, 300 * 1000};
115 static struct audio_format_info afi
[NUM_AUDIO_FORMATS
];
117 static struct signal_task signal_task_struct
, *sig_task
= &signal_task_struct
;
119 struct command_task
{
123 static struct command_task command_task_struct
, *cmd_task
= &command_task_struct
;
128 char buf
[STRINGSIZE
];
131 static struct status_task status_task_struct
, *stat_task
= &status_task_struct
;
136 static struct audiod_task audiod_task_struct
, *at
= &audiod_task_struct
;
145 /** defines one command of para_audiod */
146 struct audiod_command
{
147 /** the name of the command */
149 /** pointer to the function that handles the command */
150 int (*handler
)(int, int, char**);
151 int (*line_handler
)(int, char*);
152 /** one-line description of the command */
153 const char *description
;
154 /** summary of the command line options */
155 const char *synopsis
;
156 /** the long help text */
159 static int com_grab(int, char *);
160 static int com_cycle(int, int, char **);
161 static int com_help(int, int, char **);
162 static int com_off(int, int, char **);
163 static int com_on(int, int, char **);
164 static int com_sb(int, int, char **);
165 static int com_stat(int, int, char **);
166 static int com_term(int, int, char **);
167 static struct audiod_command cmds
[] = {
170 .handler
= com_cycle
,
171 .description
= "switch to next mode",
175 "on -> standby -> off -> on\n"
180 .line_handler
= com_grab
,
181 .description
= "grab the audio stream",
182 .synopsis
= "-- grab [grab_options]",
185 "grab ('splice') the audio stream at any position in the filter \n"
186 "chain and send that data back to the client. Try\n"
187 "\t para_audioc -- grab -h\n"
188 "for the list of available options.\n"
194 .description
= "display command list or help for given command",
195 .synopsis
= "help [command]",
198 "When I was younger, so much younger than today, I never needed\n"
199 "anybody's help in any way. But now these days are gone, I'm not so\n"
200 "self assured. Now I find I've changed my mind and opened up the doors.\n"
202 " -- Beatles: Help\n"
208 .description
= "deactivate para_audiod",
212 "Close connection to para_server and stop all decoders.\n"
218 .description
= "activate para_audiod",
222 "Establish connection to para_server, retrieve para_server's current\n"
223 "status. If playing, start corresponding decoder. Otherwise stop\n"
230 .description
= "enter standby mode",
234 "Stop all decoders but leave connection to para_server open.\n"
240 .description
= "print status information",
241 .synopsis
= "stat [item1 ...]",
244 "Dump given status items (all if none given) to stdout.\n"
250 .description
= "terminate audiod",
254 "Stop all decoders, shut down connection to para_server and exit.\n"
262 /** iterate over all slots */
263 #define FOR_EACH_SLOT(_slot) for (_slot = 0; _slot < MAX_STREAM_SLOTS; _slot++)
264 /** iterate over all supported audio formats */
265 #define FOR_EACH_AUDIO_FORMAT(af) for (af = 0; af < NUM_AUDIO_FORMATS; af++)
266 /** iterate over the array of all audiod commands */
267 #define FOR_EACH_COMMAND(c) for (c = 0; cmds[c].name; c++)
270 * get the audio format number
271 * \param name the name of the audio format
273 * \return The audio format number on success, -E_UNSUPPORTED_AUDIO_FORMAT if
274 * \a name is not a supported audio format.
276 int get_audio_format_num(char *name
)
279 FOR_EACH_AUDIO_FORMAT(i
)
280 if (!strcmp(name
, audio_formats
[i
]))
282 return -E_UNSUPPORTED_AUDIO_FORMAT
;
286 * log function. first argument is loglevel.
288 void para_log(int ll
, const char* fmt
,...)
294 char str
[MAXLINE
] = "";
296 if (ll
< conf
.loglevel_arg
)
298 outfd
= logfile
? logfile
: stderr
;
301 strftime(str
, MAXLINE
, "%b %d %H:%M:%S", tm
);
302 fprintf(outfd
, "%s %s ", str
, hostname
);
303 if (conf
.loglevel_arg
<= INFO
)
304 fprintf(outfd
, "%i ", ll
);
306 vfprintf(outfd
, fmt
, argp
);
310 static int client_write(int fd
, const char *buf
)
312 size_t len
= strlen(buf
);
313 return write(fd
, buf
, len
) != len
? -E_CLIENT_WRITE
: 1;
316 static char *get_time_string(struct timeval
*newest_stime
)
318 struct timeval now
, diff
, adj_stream_start
, tmp
;
319 int total
= 0, use_server_time
= 1;
324 return make_message("%s:\n", status_item_list
[SI_PLAY_TIME
]);
326 if (audiod_status
== AUDIOD_OFF
)
328 if (sa_time_diff_sign
> 0)
329 tv_diff(&server_stream_start
, &sa_time_diff
,
332 tv_add(&server_stream_start
, &sa_time_diff
,
334 tmp
= adj_stream_start
;
335 if (newest_stime
&& audiod_status
== AUDIOD_ON
) {
336 tv_diff(newest_stime
, &adj_stream_start
, &diff
);
337 if (tv2ms(&diff
) < 5000) {
342 gettimeofday(&now
, NULL
);
343 tv_diff(&now
, &tmp
, &diff
);
344 total
= diff
.tv_sec
+ offset_seconds
;
345 if (total
> length_seconds
)
346 total
= length_seconds
;
351 "%s:%s%d:%02d [%d:%02d] (%d%%/%d:%02d)\n",
352 status_item_list
[SI_PLAY_TIME
],
353 use_server_time
? "~" : "",
356 (length_seconds
- total
) / 60,
357 (length_seconds
- total
) % 60,
358 length_seconds
? (total
* 100 + length_seconds
/ 2) /
365 __malloc
static char *audiod_status_string(void)
367 const char *status
= (audiod_status
== AUDIOD_ON
)?
368 "on" : (audiod_status
== AUDIOD_OFF
)? "off": "sb";
369 return make_message("%s:%s\n", status_item_list
[SI_AUDIOD_STATUS
], status
);
372 static struct timeval
*wstime(void)
375 struct timeval
*max
= NULL
;
377 struct slot_info
*s
= &slot
[i
];
380 if (max
&& tv_diff(&s
->wstime
, max
, NULL
) <= 0)
386 __malloc
static char *decoder_flags(void)
389 char decoder_flags
[MAX_STREAM_SLOTS
+ 1];
392 struct slot_info
*s
= &slot
[i
];
394 if (s
->receiver_node
)
398 decoder_flags
[i
] = flag
;
400 decoder_flags
[MAX_STREAM_SLOTS
] = '\0';
401 return make_message("%s:%s\n", status_item_list
[SI_DECODER_FLAGS
],
405 static char *configfile_exists(void)
407 static char *config_file
;
410 char *home
= para_homedir();
411 config_file
= make_message("%s/.paraslash/audiod.conf", home
);
414 return file_exists(config_file
)? config_file
: NULL
;
417 static void setup_signal_handling(void)
419 sig_task
->fd
= para_signal_init();
420 PARA_INFO_LOG("signal pipe: fd %d\n", sig_task
->fd
);
421 para_install_sighandler(SIGINT
);
422 para_install_sighandler(SIGTERM
);
423 para_install_sighandler(SIGCHLD
);
424 para_install_sighandler(SIGHUP
);
425 signal(SIGPIPE
, SIG_IGN
);
428 static void audiod_status_dump(void)
430 static char *p_ts
, *p_us
, *p_as
, *p_df
;
431 struct timeval
*t
= wstime();
432 char *us
, *tmp
= get_time_string(t
);
434 if (tmp
&& (!p_ts
|| strcmp(tmp
, p_ts
)))
435 stat_client_write(tmp
, SI_PLAY_TIME
);
440 tmp
= make_message("%s:%s\n", status_item_list
[SI_AUDIOD_UPTIME
], us
);
442 if (!p_us
|| strcmp(p_us
, tmp
))
443 stat_client_write(tmp
, SI_AUDIOD_UPTIME
);
447 tmp
= audiod_status_string();
448 if (!p_as
|| strcmp(p_as
, tmp
))
449 stat_client_write(tmp
, SI_AUDIOD_STATUS
);
453 tmp
= decoder_flags();
454 if (!p_df
|| strcmp(p_df
, tmp
))
455 stat_client_write(tmp
, SI_DECODER_FLAGS
);
460 static void clear_slot(int slot_num
)
462 struct slot_info
*s
= &slot
[slot_num
];
464 PARA_INFO_LOG("clearing slot %d\n", slot_num
);
465 memset(s
, 0, sizeof(struct slot_info
));
469 static void set_restart_barrier(int format
, struct timeval
*now
)
476 gettimeofday(&tmp
, NULL
);
477 tv_add(&tmp
, &restart_delay
, &afi
[format
].restart_barrier
);
480 static void close_receiver(int slot_num
)
482 struct slot_info
*s
= &slot
[slot_num
];
483 struct audio_format_info
*a
;
485 if (s
->format
< 0 || !s
->receiver_node
)
488 PARA_NOTICE_LOG("closing %s recevier in slot %d (eof = %d)\n",
489 audio_formats
[s
->format
] , slot_num
, s
->receiver_node
->eof
);
490 if (!s
->receiver_node
->eof
)
491 unregister_task(&s
->receiver_node
->task
);
492 a
->receiver
->close(s
->receiver_node
);
493 free(s
->receiver_node
);
494 s
->receiver_node
= NULL
;
495 set_restart_barrier(s
->format
, NULL
);
497 static void close_writer(int slot_num
)
499 struct slot_info
*s
= &slot
[slot_num
];
501 PARA_INFO_LOG("slot %d: closing writer node group\n",
507 *s
->fc
->output_eof
= 1; /* FIXME */
511 static void kill_all_decoders(void)
519 static void check_sigchld(void)
523 gettimeofday(&now
, NULL
);
526 pid
= para_reap_child();
529 PARA_CRIT_LOG("para_client died (pid %d)\n", pid
);
530 goto reap_next_child
;
533 static int get_empty_slot(void)
546 if (s
->receiver_node
)
553 return -E_NO_MORE_SLOTS
;
556 static int decoder_running(int format
)
563 if (s
->format
== format
&& s
->receiver_node
)
565 if (s
->format
== format
&& s
->wng
)
571 static void close_stat_pipe(void)
575 if (stat_task
->fd
< 0)
577 PARA_NOTICE_LOG("%s", "closing status pipe\n");
578 close(stat_task
->fd
);
579 del_close_on_fork_list(stat_task
->fd
);
582 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++) {
583 free(stat_item_values
[i
]);
584 stat_item_values
[i
] = NULL
;
589 audiod_status_dump();
591 stat_item_values
[SI_STATUS_BAR
] = make_message("%s:no connection to para_server\n",
592 status_item_list
[SI_STATUS_BAR
]);
593 stat_client_write(stat_item_values
[SI_STATUS_BAR
], SI_STATUS_BAR
);
596 static void __noreturn
clean_exit(int status
, const char *msg
)
598 PARA_EMERG_LOG("%s\n", msg
);
602 if (stat_task
->fd
>= 0)
608 __malloc
static char *glob_cmd(char *cmd
)
610 char *ret
, *replacement
;
611 struct timeval tmp
, delay
, rss
; /* real stream start */
613 delay
.tv_sec
= conf
.stream_delay_arg
/ 1000;
614 delay
.tv_usec
= (conf
.stream_delay_arg
% 1000) * 1000;
615 // PARA_INFO_LOG("delay: %lu:%lu\n", delay.tv_sec, delay.tv_usec);
616 if (sa_time_diff_sign
< 0)
617 tv_add(&server_stream_start
, &sa_time_diff
, &rss
);
619 tv_diff(&server_stream_start
, &sa_time_diff
, &rss
);
620 tv_add(&rss
, &delay
, &tmp
);
621 replacement
= make_message("%lu:%lu",
622 (long unsigned)tmp
.tv_sec
,
623 (long unsigned)tmp
.tv_usec
);
624 ret
= s_a_r(cmd
, "STREAM_START", replacement
);
628 PARA_INFO_LOG("cmd: %s, repl: %s\n", cmd
, ret
);
634 /** get the number of filters for the given audio format */
635 int num_filters(int audio_format_num
)
637 return afi
[audio_format_num
].num_filters
;
640 void filter_event_handler(struct task
*t
)
642 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t
->ret
));
646 static void open_filters(int slot_num
)
648 struct slot_info
*s
= &slot
[slot_num
];
649 struct audio_format_info
*a
= &afi
[s
->format
];
650 int nf
= a
->num_filters
;
656 s
->fc
= para_calloc(sizeof(struct filter_chain
));
657 INIT_LIST_HEAD(&s
->fc
->filters
);
658 s
->fc
->inbuf
= s
->receiver_node
->buf
;
659 s
->fc
->in_loaded
= &s
->receiver_node
->loaded
;
660 s
->fc
->input_eof
= &s
->receiver_node
->eof
;
662 s
->fc
->task
.pre_select
= filter_pre_select
;
663 s
->fc
->task
.event_handler
= filter_event_handler
;
664 s
->fc
->task
.private_data
= s
->fc
;
665 s
->fc
->task
.flags
= 0;
667 sprintf(s
->fc
->task
.status
, "filter chain");
668 for (i
= 0; i
< nf
; i
++) {
669 struct filter_node
*fn
= para_calloc(sizeof(struct filter_node
));
670 fn
->conf
= a
->filter_conf
[i
];
672 fn
->filter
= a
->filters
[i
];
673 INIT_LIST_HEAD(&fn
->callbacks
);
674 list_add_tail(&fn
->node
, &s
->fc
->filters
);
675 fn
->filter
->open(fn
);
676 PARA_NOTICE_LOG("%s filter %d/%d (%s) started in slot %d\n",
677 audio_formats
[s
->format
], i
+ 1, nf
,
678 fn
->filter
->name
, slot_num
);
679 s
->fc
->outbuf
= fn
->buf
;
680 s
->fc
->out_loaded
= &fn
->loaded
;
682 register_task(&s
->fc
->task
);
683 // PARA_DEBUG_LOG("output loaded for filter chain %p: %p\n", s->fc,
684 // s->fc->out_loaded);
687 static struct filter_node
*find_filter_node(int slot_num
, int format
, int filternum
)
689 struct filter_node
*fn
;
693 struct slot_info
*s
= &slot
[i
];
694 if (s
->format
< 0 || !s
->fc
)
696 if (slot_num
>= 0 && slot_num
!= i
)
698 if (format
>= 0 && s
->format
!= format
)
700 if (num_filters(i
) < filternum
)
704 list_for_each_entry(fn
, &s
->fc
->filters
, node
)
705 if (filternum
<= 0 || j
++ == filternum
)
712 static void wng_event_handler(struct task
*t
)
714 struct writer_node_group
*g
= t
->private_data
;
717 PARA_INFO_LOG("%s\n", PARA_STRERROR(-t
->ret
));
720 if (slot
[i
].wng
!= g
)
728 static void start_stream_writer(int slot_num
, struct timeval
*now
)
731 struct slot_info
*s
= &slot
[slot_num
];
732 struct audio_format_info
*a
= &afi
[s
->format
];
734 PARA_INFO_LOG("opening %s filters\n", audio_formats
[s
->format
]);
735 open_filters(slot_num
);
736 PARA_INFO_LOG("opening %s writers\n", audio_formats
[s
->format
]);
738 s
->wng
= setup_default_wng();
740 s
->wng
= wng_new(a
->num_writers
);
742 s
->wng
->buf
= s
->fc
->outbuf
;
743 s
->wng
->loaded
= s
->fc
->out_loaded
;
744 s
->wng
->input_eof
= &s
->fc
->eof
;
745 s
->fc
->output_eof
= &s
->wng
->eof
;
747 s
->wng
->buf
= s
->receiver_node
->buf
;
748 s
->wng
->loaded
= &s
->receiver_node
->loaded
;
749 s
->wng
->input_eof
= &s
->receiver_node
->eof
;
751 s
->wng
->task
.event_handler
= wng_event_handler
;
752 for (i
= 0; i
< a
->num_writers
; i
++) {
753 s
->wng
->writer_nodes
[i
].conf
= a
->writer_conf
[i
];
754 s
->wng
->writer_nodes
[i
].writer
= a
->writers
[i
];
755 sprintf(s
->wng
->writer_nodes
[i
].task
.status
, "writer_ node");
757 ret
= wng_open(s
->wng
);
759 current_decoder
= slot_num
;
760 activate_inactive_grab_clients(slot_num
, s
->format
, &s
->fc
->filters
);
763 void rn_event_handler(struct task
*t
)
765 // struct receiver_node *rn = t->private_data;
766 PARA_NOTICE_LOG("%s\n", PARA_STRERROR(-t
->ret
));
769 static void open_receiver(int format
)
771 struct audio_format_info
*a
= &afi
[format
];
774 struct receiver_node
*rn
;
776 slot_num
= get_empty_slot();
778 clean_exit(EXIT_FAILURE
, PARA_STRERROR(-slot_num
));
781 gettimeofday(&s
->rtime
, NULL
);
783 s
->receiver_node
= para_calloc(sizeof(struct receiver_node
));
784 rn
= s
->receiver_node
;
785 rn
->receiver
= a
->receiver
;
786 rn
->conf
= a
->receiver_conf
;
787 ret
= a
->receiver
->open(s
->receiver_node
);
789 PARA_ERROR_LOG("failed to open receiver (%s)\n",
790 PARA_STRERROR(-ret
));
791 free(s
->receiver_node
);
792 s
->receiver_node
= NULL
;
795 PARA_NOTICE_LOG("started %s: %s receiver in slot %d\n",
796 audio_formats
[s
->format
], a
->receiver
->name
, slot_num
);
797 rn
->task
.private_data
= s
->receiver_node
;
798 PARA_NOTICE_LOG("rn = %p\n", rn
->task
.private_data
);
799 rn
->task
.pre_select
= a
->receiver
->pre_select
;
800 rn
->task
.post_select
= a
->receiver
->post_select
;
801 rn
->task
.event_handler
= rn_event_handler
;
803 sprintf(rn
->task
.status
, "receiver node");
804 register_task(&rn
->task
);
807 static int is_frozen(int format
)
810 struct audio_format_info
*a
= &afi
[format
];
812 gettimeofday(&now
, NULL
);
813 return (tv_diff(&now
, &a
->restart_barrier
, NULL
) > 0)? 0 : 1;
816 static void start_current_receiver(void)
822 i
= get_audio_format_num(af_status
);
825 if ((decoder_running(i
) & 1) || is_frozen(i
))
830 static void compute_time_diff(const struct timeval
*status_time
)
832 struct timeval now
, tmp
, diff
;
835 const struct timeval max_deviation
= {0, 500 * 1000};
836 const int time_smooth
= 5;
838 gettimeofday(&now
, NULL
);
839 sign
= tv_diff(status_time
, &now
, &diff
);
840 // PARA_NOTICE_LOG("%s: sign = %i, sa_time_diff_sign = %i\n", __func__,
841 // sign, sa_time_diff_sign);
843 sa_time_diff_sign
= sign
;
849 int s
= tv_diff(&diff
, &sa_time_diff
, &tmp
);
850 if (tv_diff(&max_deviation
, &tmp
, NULL
) < 0)
851 PARA_WARNING_LOG("time diff jump: %lims\n",
855 sa_time_diff_sign
= tv_convex_combination(
856 sa_time_diff_sign
* time_smooth
, &sa_time_diff
,
857 count
> 10? sign
: sign
* time_smooth
, &diff
,
860 PARA_INFO_LOG("time diff (cur/avg): %s%lums/%s%lums\n",
863 sa_time_diff_sign
? "+" : "-",
868 static void check_stat_line(char *line
)
872 long unsigned sec
, usec
;
875 // PARA_INFO_LOG("line: %s\n", line);
878 itemnum
= stat_line_valid(line
);
880 PARA_WARNING_LOG("invalid status line: %s\n", line
);
883 tmp
= make_message("%s\n", line
);
884 stat_client_write(tmp
, itemnum
);
886 free(stat_item_values
[itemnum
]);
887 stat_item_values
[itemnum
] = para_strdup(line
);
888 ilen
= strlen(status_item_list
[itemnum
]);
891 playing
= strstr(line
, "playing")? 1 : 0;
895 af_status
= para_strdup(line
+ ilen
+ 1);
898 offset_seconds
= atoi(line
+ ilen
+ 1);
901 length_seconds
= atoi(line
+ ilen
+ 1);
903 case SI_STREAM_START
:
904 if (sscanf(line
+ ilen
+ 1, "%lu.%lu", &sec
, &usec
) == 2) {
905 server_stream_start
.tv_sec
= sec
;
906 server_stream_start
.tv_usec
= usec
;
909 case SI_CURRENT_TIME
:
910 if (sscanf(line
+ ilen
+ 1, "%lu.%lu", &sec
, &usec
) == 2) {
911 struct timeval tv
= {sec
, usec
};
912 compute_time_diff(&tv
);
918 static void handle_signal(int sig
)
922 return check_sigchld();
926 PARA_EMERG_LOG("terminating on signal %d\n", sig
);
927 clean_exit(EXIT_FAILURE
, "caught deadly signal");
932 static void check_timeouts(void)
935 int slot_num
, timeout
= conf
.stream_timeout_arg
;
937 gettimeofday(&now
, NULL
);
938 FOR_EACH_SLOT(slot_num
) {
939 struct slot_info
*s
= &slot
[slot_num
];
942 /* check read time */
943 if (s
->receiver_node
&&
944 now
.tv_sec
> s
->rtime
.tv_sec
+ timeout
) {
945 PARA_INFO_LOG("%s stream (slot %d) not ready\n",
946 audio_formats
[s
->format
], slot_num
);
947 s
->receiver_node
->eof
= 1;
952 static void close_decoder_if_idle(int slot_num
)
954 struct slot_info
*s
= &slot
[slot_num
];
962 PARA_INFO_LOG("closing all filters in slot %d (filter_chain %p)\n",
964 close_filters(s
->fc
);
966 close_receiver(slot_num
);
967 clear_slot(slot_num
);
970 static void audiod_pre_select(__a_unused
struct sched
*s
, __a_unused
struct task
*t
)
974 if (audiod_status
!= AUDIOD_ON
)
977 start_current_receiver();
980 struct receiver_node
*rn
;
982 close_decoder_if_idle(i
);
983 if (slot
[i
].format
< 0)
985 rn
= slot
[i
].receiver_node
;
986 if (rn
&& rn
->loaded
&& !slot
[i
].wng
) {
987 PARA_INFO_LOG("no writer in slot %d\n", i
);
988 start_stream_writer(i
, &s
->now
);
994 static int write_audio_data(int slot_num
)
996 struct slot_info
*s
= &slot
[slot_num
];
997 struct audio_format_info
*a
= &afi
[s
->format
];
998 struct receiver_node
*rn
= s
->receiver_node
;
1003 if (a
->num_filters
) {
1004 buf
= &s
->fc
->outbuf
;
1005 len
= s
->fc
->out_loaded
;
1010 PARA_DEBUG_LOG("writing %p (%zd bytes)\n", *buf
, *len
);
1011 ret
= write(s
->write_fd
, *buf
, *len
);
1012 PARA_DEBUG_LOG("wrote %d/%zd\n", ret
, *len
);
1014 PARA_WARNING_LOG("write error in slot %d (fd %d): %s\n",
1015 slot_num
, s
->write_fd
, strerror(errno
));
1017 close_writer(slot_num
);
1018 // s->fc->error = E_WRITE_AUDIO_DATA;
1019 } else if (ret
!= *len
) {
1020 PARA_DEBUG_LOG("partial %s write (%i/%zd) for slot %d\n",
1021 audio_formats
[s
->format
], ret
, *len
, slot_num
);
1023 memmove(*buf
, *buf
+ ret
, *len
);
1027 gettimeofday(&s
->wtime
, NULL
);
1033 static void audiod_post_select(struct sched
*s
, __a_unused
struct task
*t
)
1038 struct receiver_node
*rn
= slot
[i
].receiver_node
;
1040 if (rn
&& rn
->loaded
)
1041 slot
[i
].rtime
= s
->now
;
1042 // if (slot[i].write_fd <= 0 || !slot[i].wcheck
1043 // || !FD_ISSET(slot[i].write_fd, &s->wfds))
1045 // ret = write_audio_data(i);
1049 static void init_audiod_task(struct audiod_task
*at
)
1051 at
->task
.pre_select
= audiod_pre_select
;
1052 at
->task
.post_select
= audiod_post_select
;
1053 at
->task
.private_data
= at
;
1055 sprintf(at
->task
.status
, "audiod task");
1058 static int parse_stream_command(const char *txt
, char **cmd
)
1060 char *p
= strchr(txt
, ':');
1064 return -E_MISSING_COLON
;
1066 FOR_EACH_AUDIO_FORMAT(i
) {
1067 if (strncmp(txt
, audio_formats
[i
], strlen(audio_formats
[i
])))
1072 return -E_UNSUPPORTED_AUDIO_FORMAT
;
1075 static int add_filter(int format
, char *cmdline
)
1077 struct audio_format_info
*a
= &afi
[format
];
1078 int filter_num
, nf
= a
->num_filters
;
1080 filter_num
= check_filter_arg(cmdline
, &a
->filter_conf
[nf
]);
1083 a
->filters
[nf
] = &filters
[filter_num
];
1085 PARA_INFO_LOG("%s filter %d: %s\n", audio_formats
[format
], nf
+ 1,
1086 a
->filters
[nf
]->name
);
1090 static int setup_default_filters(void)
1094 FOR_EACH_AUDIO_FORMAT(i
) {
1095 struct audio_format_info
*a
= &afi
[i
];
1100 /* add "dec" to audio format name */
1101 tmp
= make_message("%sdec", audio_formats
[i
]);
1102 for (j
= 0; filters
[j
].name
; j
++)
1103 if (!strcmp(tmp
, filters
[j
].name
))
1106 ret
= -E_UNSUPPORTED_FILTER
;
1107 if (!filters
[j
].name
)
1109 tmp
= para_strdup(filters
[j
].name
);
1110 ret
= add_filter(i
, tmp
);
1114 PARA_INFO_LOG("%s -> default filter: %s\n", audio_formats
[i
],
1116 ret
= add_filter(i
, "wav");
1119 PARA_INFO_LOG("%s -> default filter: wav\n", audio_formats
[i
]);
1125 static int init_stream_io(void)
1127 int i
, ret
, receiver_num
, nf
, nw
;
1129 struct audio_format_info
*a
;
1131 init_supported_writers();
1132 nw
= PARA_MAX(1, conf
.writer_given
);
1133 PARA_INFO_LOG("allocating space for %d writers\n", nw
);
1134 FOR_EACH_AUDIO_FORMAT(i
) {
1136 a
->writer_conf
= para_malloc(nw
* sizeof(void *));
1137 a
->writers
= para_malloc(nw
* sizeof(struct writer
*));
1140 for (i
= 0; i
< conf
.writer_given
; i
++) {
1143 ret
= parse_stream_command(conf
.writer_arg
[i
], &cmd
);
1147 nw
= a
->num_writers
;
1148 wconf
= check_writer_arg(cmd
, &writer_num
);
1153 a
->writers
[nw
] = &writers
[ret
];
1154 a
->writer_conf
[nw
] = wconf
;
1155 PARA_INFO_LOG("%s writer #%d: %s\n", audio_formats
[ret
],
1156 nw
, writer_names
[writer_num
]);
1159 for (i
= 0; receivers
[i
].name
; i
++) {
1160 PARA_INFO_LOG("initializing %s receiver\n", receivers
[i
].name
);
1161 receivers
[i
].init(&receivers
[i
]);
1163 for (i
= 0; i
< conf
.receiver_given
; i
++) {
1164 char *arg
= conf
.receiver_arg
[i
];
1165 char *recv
= strchr(arg
, ':');
1166 ret
= -E_MISSING_COLON
;
1171 ret
= get_audio_format_num(arg
);
1174 afi
[ret
].receiver_conf
= check_receiver_arg(recv
, &receiver_num
);
1175 if (!afi
[ret
].receiver_conf
) {
1176 ret
= -E_RECV_SYNTAX
;
1179 afi
[ret
].receiver
= &receivers
[receiver_num
];
1181 /* use the first available receiver with no arguments
1182 * for those audio formats for which no receiver
1185 cmd
= para_strdup(receivers
[0].name
);
1186 FOR_EACH_AUDIO_FORMAT(i
) {
1188 if (a
->receiver_conf
)
1190 a
->receiver_conf
= check_receiver_arg(cmd
, &receiver_num
);
1191 if (!a
->receiver_conf
)
1192 return -E_RECV_SYNTAX
;
1193 a
->receiver
= &receivers
[receiver_num
];
1197 filter_init(filters
);
1198 nf
= PARA_MAX(2, conf
.filter_given
) + 1;
1199 PARA_INFO_LOG("allocating space for %d filters\n", nf
);
1200 FOR_EACH_AUDIO_FORMAT(i
) {
1201 afi
[i
].filter_conf
= para_malloc(nf
* sizeof(void *));
1202 afi
[i
].filters
= para_malloc(nf
* sizeof(struct filter
*));
1204 if (!conf
.no_default_filters_given
)
1205 return setup_default_filters();
1206 for (i
= 0; i
< conf
.filter_given
; i
++) {
1207 char *arg
= conf
.filter_arg
[i
];
1208 char *filter_name
= strchr(arg
, ':');
1209 ret
= -E_MISSING_COLON
;
1212 *filter_name
= '\0';
1214 ret
= get_audio_format_num(arg
);
1217 ret
= add_filter(ret
, filter_name
);
1226 static int dump_commands(int fd
)
1228 char *buf
= para_strdup(""), *tmp
= NULL
;
1232 FOR_EACH_COMMAND(i
) {
1233 tmp
= make_message("%s%s\t%s\n", buf
, cmds
[i
].name
,
1234 cmds
[i
].description
);
1238 ret
= client_write(fd
, buf
);
1244 * command handlers don't close their fd on errors (ret < 0) so that
1245 * its caller can send an error message. Otherwise (ret >= 0) it's up
1246 * to each individual command to close the fd if necessary.
1249 static int com_help(int fd
, int argc
, char **argv
)
1253 const char *dflt
= "No such command. Available commands:\n";
1256 ret
= dump_commands(fd
);
1259 FOR_EACH_COMMAND(i
) {
1260 if (strcmp(cmds
[i
].name
, argv
[1]))
1263 "NAME\n\t%s -- %s\n"
1264 "SYNOPSIS\n\tpara_audioc %s\n"
1265 "DESCRIPTION\n%s\n",
1267 cmds
[i
].description
,
1271 ret
= client_write(fd
, buf
);
1275 ret
= client_write(fd
, dflt
);
1277 ret
= dump_commands(fd
);
1284 static int com_stat(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1288 long unsigned mask
= ~0LU;
1292 for (i
= 1; i
< argc
; i
++) {
1293 ret
= stat_item_valid(argv
[i
]);
1299 PARA_INFO_LOG("mask: 0x%lx\n", mask
);
1300 if (mask
& (1 << SI_PLAY_TIME
)) {
1301 struct timeval
*t
= wstime();
1302 char *ts
= get_time_string(t
);
1304 ret
= client_write(fd
, ts
);
1310 if (mask
& (1 << SI_AUDIOD_UPTIME
)) {
1311 char *tmp
, *us
= uptime_str();
1312 tmp
= make_message("%s:%s\n",
1313 status_item_list
[SI_AUDIOD_UPTIME
], us
);
1315 ret
= client_write(fd
, tmp
);
1320 if (mask
& (1 << SI_AUDIOD_STATUS
)) {
1321 char *s
= audiod_status_string();
1322 ret
= client_write(fd
, s
);
1327 if (mask
& (1 << SI_DECODER_FLAGS
)) {
1328 char *df
=decoder_flags();
1329 ret
= client_write(fd
, df
);
1335 for (i
= 0; i
< NUM_STAT_ITEMS
; i
++) {
1337 if (!((1 << i
) & mask
))
1339 v
= stat_item_values
[i
];
1340 tmp
= make_message("%s%s%s", buf
? buf
: "",
1341 v
? v
: "", v
? "\n" : "");
1345 ret
= client_write(fd
, buf
);
1348 ret
= stat_client_add(fd
, mask
);
1354 static char *list_filters(void)
1357 char *tmp
, *msg
= make_message("format\tnum\tcmd\n");
1359 FOR_EACH_AUDIO_FORMAT(i
) {
1360 for (j
= 0; j
< afi
[i
].num_filters
; j
++) {
1361 tmp
= make_message("%s\t%i\t%s\n",
1362 afi
[i
].name
, j
, afi
[i
].filter_cmds
[j
]);
1363 msg
= para_strcat(msg
, tmp
);
1366 tmp
= make_message("%s\t%i\t%s\n", afi
[i
].name
,
1367 j
, afi
[i
].write_cmd
);
1368 msg
= para_strcat(msg
, tmp
);
1376 static int com_grab(int fd
, char *cmdline
)
1378 struct grab_client
*gc
;
1379 struct filter_node
*fn
;
1383 gc
= grab_client_new(fd
, cmdline
, &err
);
1386 fn
= find_filter_node(gc
->conf
->slot_arg
, gc
->audio_format_num
, gc
->conf
->filter_num_arg
);
1388 activate_grab_client(gc
, fn
);
1391 if (err
!= -E_GC_HELP_GIVEN
&& err
!= -E_GC_VERSION_GIVEN
)
1393 if (err
== -E_GC_HELP_GIVEN
) {
1394 msg
= make_message("%s\n\n", grab_client_args_info_usage
);
1395 for (i
= 0; grab_client_args_info_help
[i
]; i
++) {
1396 char *tmp
= make_message("%s%s\n", msg
,
1397 grab_client_args_info_help
[i
]);
1402 msg
= make_message("%s %s\n",
1403 GRAB_CLIENT_CMDLINE_PARSER_PACKAGE
,
1404 GRAB_CLIENT_CMDLINE_PARSER_VERSION
);
1405 err
= client_write(fd
, msg
);
1413 static int __noreturn
com_term(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1416 clean_exit(EXIT_SUCCESS
, "terminating on user request");
1419 static int com_on(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1421 audiod_status
= AUDIOD_ON
;
1426 static int com_off(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1428 audiod_status
= AUDIOD_OFF
;
1433 static int com_sb(int fd
, __a_unused
int argc
, __a_unused
char **argv
)
1435 audiod_status
= AUDIOD_STANDBY
;
1440 static int com_cycle(int fd
, int argc
, char **argv
)
1442 switch (audiod_status
) {
1444 return com_sb(fd
, argc
, argv
);
1447 return com_on(fd
, argc
, argv
);
1449 case AUDIOD_STANDBY
:
1450 return com_off(fd
, argc
, argv
);
1457 static int check_perms(uid_t uid
)
1461 if (!conf
.user_allow_given
)
1463 for (i
= 0; i
< conf
.user_allow_given
; i
++)
1464 if (uid
== conf
.user_allow_arg
[i
])
1466 return -E_UCRED_PERM
;
1469 static int handle_connect(void)
1471 int i
, argc
, ret
, clifd
= -1;
1472 char *cmd
= NULL
, *p
, *buf
= para_calloc(MAXLINE
), **argv
= NULL
;
1473 struct sockaddr_un unix_addr
;
1475 ret
= para_accept(cmd_task
->fd
, &unix_addr
, sizeof(struct sockaddr_un
));
1479 ret
= recv_cred_buffer(clifd
, buf
, MAXLINE
- 1);
1482 PARA_INFO_LOG("connection from user %i, buf: %s\n", ret
, buf
);
1483 ret
= check_perms(ret
);
1486 ret
= -E_INVALID_AUDIOD_CMD
;
1487 cmd
= para_strdup(buf
);
1488 p
= strchr(cmd
, '\n');
1495 for (i
= 0; cmds
[i
].name
; i
++) {
1497 if (strcmp(cmds
[i
].name
, cmd
))
1499 if (cmds
[i
].handler
) {
1500 argc
= split_args(buf
, &argv
, "\n");
1501 PARA_INFO_LOG("argv[0]: %s, argc= %d\n", argv
[0], argc
);
1502 ret
= cmds
[i
].handler(clifd
, argc
, argv
);
1505 for (j
= 0; p
[j
]; j
++)
1508 PARA_INFO_LOG("cmd: %s, options: %s\n", cmd
, p
);
1509 ret
= cmds
[i
].line_handler(clifd
, p
);
1512 ret
= -E_INVALID_AUDIOD_CMD
; /* cmd not found */
1517 if (clifd
> 0 && ret
< 0 && ret
!= -E_CLIENT_WRITE
) {
1518 char *tmp
= make_message("%s\n", PARA_STRERROR(-ret
));
1519 client_write(clifd
, tmp
);
1526 static void audiod_get_socket(void)
1528 struct sockaddr_un unix_addr
;
1530 if (conf
.socket_given
)
1531 socket_name
= para_strdup(conf
.socket_arg
);
1533 char *hn
= para_hostname();
1534 socket_name
= make_message("/var/paraslash/audiod_socket.%s",
1538 PARA_NOTICE_LOG("connecting to local socket %s\n", socket_name
);
1539 if (conf
.force_given
)
1540 unlink(socket_name
);
1541 cmd_task
->fd
= create_pf_socket(socket_name
, &unix_addr
,
1542 S_IRUSR
| S_IWUSR
| S_IRGRP
| S_IWGRP
| S_IWOTH
);
1543 if (cmd_task
->fd
< 0) {
1544 PARA_EMERG_LOG("%s", "can not connect to socket\n");
1545 exit(EXIT_FAILURE
); /* do not unlink socket */
1547 if (listen(cmd_task
->fd
, 5) < 0) {
1548 PARA_EMERG_LOG("%s", "can not listen on socket\n");
1549 exit(EXIT_FAILURE
); /* do not unlink socket */
1551 add_close_on_fork_list(cmd_task
->fd
);
1554 static int open_stat_pipe(void)
1556 int ret
, fd
[3] = {-1, 1, 0};
1558 ret
= para_exec_cmdline_pid(&pid
, BINDIR
"/para_client stat", fd
);
1561 PARA_NOTICE_LOG("stat pipe opened, fd %d\n", ret
);
1562 add_close_on_fork_list(ret
);
1564 clean_exit(EXIT_FAILURE
, "failed to open status pipe");
1568 void signal_event_handler(struct task
*t
)
1570 struct signal_task
*st
= t
->private_data
;
1571 handle_signal(st
->signum
);
1574 void signal_pre_select(struct sched
*s
, struct task
*t
)
1576 struct signal_task
*st
= t
->private_data
;
1578 para_fd_set(st
->fd
, &s
->rfds
, &s
->max_fileno
);
1581 void signal_post_select(struct sched
*s
, struct task
*t
)
1583 struct signal_task
*st
= t
->private_data
;
1585 if (!FD_ISSET(st
->fd
, &s
->rfds
))
1587 t
->ret
= -E_SIGNAL_CAUGHT
;
1588 st
->signum
= para_next_signal();
1591 void signal_setup_default(struct signal_task
*st
)
1593 st
->task
.pre_select
= signal_pre_select
;
1594 st
->task
.post_select
= signal_post_select
;
1595 st
->task
.private_data
= st
;
1597 sprintf(st
->task
.status
, "signal task");
1600 static void command_pre_select(struct sched
*s
, struct task
*t
)
1602 struct command_task
*ct
= t
->private_data
;
1603 para_fd_set(ct
->fd
, &s
->rfds
, &s
->max_fileno
);
1607 static void command_post_select(struct sched
*s
, struct task
*t
)
1610 struct command_task
*ct
= t
->private_data
;
1612 if (audiod_status
!= AUDIOD_OFF
)
1613 audiod_status_dump();
1614 t
->ret
= 1; /* always successful */
1615 if (!FD_ISSET(ct
->fd
, &s
->rfds
))
1617 ret
= handle_connect();
1619 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret
));
1622 void init_command_task(struct command_task
*ct
)
1624 ct
->task
.pre_select
= command_pre_select
;
1625 ct
->task
.post_select
= command_post_select
;
1626 ct
->task
.private_data
= ct
;
1628 sprintf(ct
->task
.status
, "command task");
1631 static void status_pre_select(struct sched
*s
, struct task
*t
)
1633 struct status_task
*st
= t
->private_data
;
1635 if (st
->fd
>= 0 && audiod_status
== AUDIOD_OFF
)
1637 if (st
->fd
< 0 && audiod_status
!= AUDIOD_OFF
) {
1638 st
->fd
= open_stat_pipe();
1642 if (st
->fd
>= 0 && audiod_status
!= AUDIOD_OFF
)
1643 para_fd_set(st
->fd
, &s
->rfds
, &s
->max_fileno
);
1646 static void status_post_select(struct sched
*s
, struct task
*t
)
1648 struct status_task
*st
= t
->private_data
;
1652 if (st
->fd
< 0 || !FD_ISSET(st
->fd
, &s
->rfds
))
1654 ret
= read(st
->fd
, st
->buf
+ st
->loaded
,
1655 STRINGSIZE
- 1 - st
->loaded
);
1658 /* avoid busy loop if server is down */
1659 while (sleep(1) > 0)
1662 st
->buf
[ret
+ st
->loaded
] = '\0';
1663 st
->loaded
= for_each_line(st
->buf
, ret
+ st
->loaded
,
1668 static void init_status_task(struct status_task
*st
)
1670 st
->task
.pre_select
= status_pre_select
;
1671 st
->task
.post_select
= status_post_select
;
1672 st
->task
.private_data
= st
;
1677 sprintf(st
->task
.status
, "status task");
1683 /* TODO: move everything before the select call to pre_select() */
1684 static void __noreturn
audiod_mainloop(void)
1687 int ret
, max_fileno
, sbo
= 0;
1688 char status_buf
[STRINGSIZE
] = "";
1697 /* always check signal pipe and the local socket */
1698 para_fd_set(signal_pipe
, &rfds
, &max_fileno
);
1699 para_fd_set(audiod_socket
, &rfds
, &max_fileno
);
1701 if (audiod_status
!= AUDIOD_ON
)
1702 kill_all_decoders();
1704 start_current_receiver();
1706 set_stream_fds(&wfds
, &max_fileno
);
1708 if (stat_pipe
>= 0 && audiod_status
== AUDIOD_OFF
)
1710 if (stat_pipe
< 0 && audiod_status
!= AUDIOD_OFF
) {
1711 stat_pipe
= open_stat_pipe();
1713 status_buf
[0] = '\0';
1715 if (stat_pipe
>= 0 && audiod_status
!= AUDIOD_OFF
)
1716 para_fd_set(stat_pipe
, &rfds
, &max_fileno
);
1719 tv
.tv_usec
= 200 * 1000;
1720 audiod_pre_select(&rfds
, &wfds
, &tv
, &max_fileno
);
1721 ret
= para_select(max_fileno
+ 1, &rfds
, &wfds
, &tv
);
1724 if (audiod_status
!= AUDIOD_OFF
)
1725 audiod_status_dump();
1726 audiod_post_select(ret
, &rfds
, &wfds
);
1727 /* read status pipe */
1728 if (stat_pipe
>=0 && FD_ISSET(stat_pipe
, &rfds
)) {
1729 ret
= read(stat_pipe
, status_buf
+ sbo
, STRINGSIZE
- 1 - sbo
);
1732 /* avoid busy loop if server is down */
1733 while (sleep(1) > 0)
1736 status_buf
[ret
+ sbo
] = '\0';
1737 sbo
= for_each_line(status_buf
, ret
+ sbo
,
1742 if (FD_ISSET(audiod_socket
, &rfds
)) {
1743 ret
= handle_connect();
1745 PARA_ERROR_LOG("%s\n", PARA_STRERROR(-ret
));
1749 if (FD_ISSET(signal_pipe
, &rfds
)) {
1750 int sig_nr
= para_next_signal();
1752 handle_signal(sig_nr
);
1758 static void set_initial_status(void)
1760 audiod_status
= AUDIOD_ON
;
1761 if (!conf
.mode_given
)
1763 if (!strcmp(conf
.mode_arg
, "sb")) {
1764 audiod_status
= AUDIOD_STANDBY
;
1767 if (!strcmp(conf
.mode_arg
, "off")) {
1768 audiod_status
= AUDIOD_OFF
;
1771 if (strcmp(conf
.mode_arg
, "on"))
1772 PARA_WARNING_LOG("%s", "invalid mode\n");
1775 int main(int argc
, char *argv
[])
1784 hostname
= para_hostname();
1785 cmdline_parser(argc
, argv
, &conf
);
1786 para_drop_privileges(conf
.user_arg
, conf
.group_arg
);
1787 cf
= configfile_exists();
1789 if (cmdline_parser_configfile(cf
, &conf
, 0, 0, 0)) {
1790 PARA_EMERG_LOG("%s", "parse error in config file\n");
1794 if (conf
.logfile_given
)
1795 logfile
= open_log(conf
.logfile_arg
);
1796 log_welcome("para_audiod", conf
.loglevel_arg
);
1797 i
= init_stream_io();
1799 PARA_EMERG_LOG("init stream io error: %s\n", PARA_STRERROR(-i
));
1803 server_uptime(UPTIME_SET
);
1804 set_initial_status();
1808 setup_signal_handling();
1809 if (conf
.daemon_given
)
1811 audiod_get_socket(); /* doesn't return on errors */
1813 signal_setup_default(sig_task
);
1814 sig_task
->task
.event_handler
= signal_event_handler
;
1816 init_status_task(stat_task
);
1817 init_command_task(cmd_task
);
1818 init_audiod_task(at
);
1820 register_task(&sig_task
->task
);
1821 register_task(&cmd_task
->task
);
1822 register_task(&stat_task
->task
);
1823 register_task(&at
->task
);
1824 s
.default_timeout
.tv_sec
= 0;
1825 s
.default_timeout
.tv_usec
= 99 * 1000;
1828 PARA_EMERG_LOG("%s\n", PARA_STRERROR(-ret
));
1829 return EXIT_FAILURE
;