2 * Asterisk -- An open source telephony toolkit.
4 * Copyright (C) 1999 - 2010, Digium, Inc.
6 * Mark Spencer <markster@digium.com>
8 * See http://www.asterisk.org for more information about
9 * the Asterisk project. Please do not directly contact
10 * any of the maintainers of this project for assistance;
11 * the project provides a web site, mailing lists and IRC
12 * channels for your use.
14 * This program is free software, distributed under the terms of
15 * the GNU General Public License Version 2. See the LICENSE file
16 * at the top of the source tree.
21 * \brief Full-featured outgoing call spool support
26 <support_level>core</support_level>
31 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
38 #include <sys/inotify.h>
39 #elif defined(HAVE_KQUEUE)
40 #include <sys/types.h>
42 #include <sys/event.h>
46 #include "asterisk/paths.h" /* use ast_config_AST_SPOOL_DIR */
47 #include "asterisk/lock.h"
48 #include "asterisk/file.h"
49 #include "asterisk/logger.h"
50 #include "asterisk/channel.h"
51 #include "asterisk/callerid.h"
52 #include "asterisk/pbx.h"
53 #include "asterisk/module.h"
54 #include "asterisk/utils.h"
55 #include "asterisk/options.h"
58 * pbx_spool is similar in spirit to qcall, but with substantially enhanced functionality...
59 * The spool file contains a header
63 /*! Always delete the call file after a call succeeds or the
64 * maximum number of retries is exceeded, even if the
65 * modification time of the call file is in the future.
67 SPOOL_FLAG_ALWAYS_DELETE = (1 << 0),
68 /* Don't unlink the call file after processing, move in qdonedir */
69 SPOOL_FLAG_ARCHIVE = (1 << 1),
70 /* Connect the channel with the outgoing extension once early media is received */
71 SPOOL_FLAG_EARLY_MEDIA = (1 << 2),
74 static char qdir[255];
75 static char qdonedir[255];
78 int retries; /*!< Current number of retries */
79 int maxretries; /*!< Maximum number of retries permitted */
80 int retrytime; /*!< How long to wait between retries (in seconds) */
81 int waittime; /*!< How long to wait for an answer */
82 long callingpid; /*!< PID which is currently calling */
83 struct ast_format_cap *capabilities; /*!< Formats (codecs) for this call */
84 AST_DECLARE_STRING_FIELDS (
85 AST_STRING_FIELD(fn); /*!< File name of call file */
86 AST_STRING_FIELD(tech); /*!< Which channel technology to use for outgoing call */
87 AST_STRING_FIELD(dest); /*!< Which device/line to use for outgoing call */
88 AST_STRING_FIELD(app); /*!< If application: Application name */
89 AST_STRING_FIELD(data); /*!< If application: Application data */
90 AST_STRING_FIELD(exten); /*!< If extension/context/priority: Extension in dialplan */
91 AST_STRING_FIELD(context); /*!< If extension/context/priority: Dialplan context */
92 AST_STRING_FIELD(cid_num); /*!< CallerID Information: Number/extension */
93 AST_STRING_FIELD(cid_name); /*!< CallerID Information: Name */
94 AST_STRING_FIELD(account); /*!< account code */
96 int priority; /*!< If extension/context/priority: Dialplan priority */
97 struct ast_variable *vars; /*!< Variables and Functions */
98 int maxlen; /*!< Maximum length of call */
99 struct ast_flags options; /*!< options */
102 #if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
103 static void queue_file(const char *filename, time_t when);
106 static int init_outgoing(struct outgoing *o)
108 struct ast_format tmpfmt;
113 if (!(o->capabilities = ast_format_cap_alloc_nolock())) {
116 ast_format_cap_add(o->capabilities, ast_format_set(&tmpfmt, AST_FORMAT_SLINEAR, 0));
118 ast_set_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE);
119 if (ast_string_field_init(o, 128)) {
125 static void free_outgoing(struct outgoing *o)
128 ast_variables_destroy(o->vars);
130 ast_string_field_free_memory(o);
131 o->capabilities = ast_format_cap_destroy(o->capabilities);
135 static int apply_outgoing(struct outgoing *o, const char *fn, FILE *f)
140 struct ast_variable *var, *last = o->vars;
142 while (last && last->next) {
146 while(fgets(buf, sizeof(buf), f)) {
150 while ((c = strchr(c, '#'))) {
151 if ((c == buf) || (*(c-1) == ' ') || (*(c-1) == '\t'))
158 while ((c = strchr(c, ';'))) {
159 if ((c > buf) && (c[-1] == '\\')) {
160 memmove(c - 1, c, strlen(c) + 1);
168 /* Trim trailing white space */
169 while(!ast_strlen_zero(buf) && buf[strlen(buf) - 1] < 33)
170 buf[strlen(buf) - 1] = '\0';
171 if (!ast_strlen_zero(buf)) {
172 c = strchr(buf, ':');
176 while ((*c) && (*c < 33))
179 printf("'%s' is '%s' at line %d\n", buf, c, lineno);
181 if (!strcasecmp(buf, "channel")) {
182 if ((c2 = strchr(c, '/'))) {
185 ast_string_field_set(o, tech, c);
186 ast_string_field_set(o, dest, c2);
188 ast_log(LOG_NOTICE, "Channel should be in form Tech/Dest at line %d of %s\n", lineno, fn);
190 } else if (!strcasecmp(buf, "callerid")) {
191 char cid_name[80] = {0}, cid_num[80] = {0};
192 ast_callerid_split(c, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
193 ast_string_field_set(o, cid_num, cid_num);
194 ast_string_field_set(o, cid_name, cid_name);
195 } else if (!strcasecmp(buf, "application")) {
196 ast_string_field_set(o, app, c);
197 } else if (!strcasecmp(buf, "data")) {
198 ast_string_field_set(o, data, c);
199 } else if (!strcasecmp(buf, "maxretries")) {
200 if (sscanf(c, "%30d", &o->maxretries) != 1) {
201 ast_log(LOG_WARNING, "Invalid max retries at line %d of %s\n", lineno, fn);
204 } else if (!strcasecmp(buf, "codecs")) {
205 ast_parse_allow_disallow(NULL, o->capabilities, c, 1);
206 } else if (!strcasecmp(buf, "context")) {
207 ast_string_field_set(o, context, c);
208 } else if (!strcasecmp(buf, "extension")) {
209 ast_string_field_set(o, exten, c);
210 } else if (!strcasecmp(buf, "priority")) {
211 if ((sscanf(c, "%30d", &o->priority) != 1) || (o->priority < 1)) {
212 ast_log(LOG_WARNING, "Invalid priority at line %d of %s\n", lineno, fn);
215 } else if (!strcasecmp(buf, "retrytime")) {
216 if ((sscanf(c, "%30d", &o->retrytime) != 1) || (o->retrytime < 1)) {
217 ast_log(LOG_WARNING, "Invalid retrytime at line %d of %s\n", lineno, fn);
220 } else if (!strcasecmp(buf, "waittime")) {
221 if ((sscanf(c, "%30d", &o->waittime) != 1) || (o->waittime < 1)) {
222 ast_log(LOG_WARNING, "Invalid waittime at line %d of %s\n", lineno, fn);
225 } else if (!strcasecmp(buf, "retry")) {
227 } else if (!strcasecmp(buf, "startretry")) {
228 if (sscanf(c, "%30ld", &o->callingpid) != 1) {
229 ast_log(LOG_WARNING, "Unable to retrieve calling PID!\n");
232 } else if (!strcasecmp(buf, "endretry") || !strcasecmp(buf, "abortretry")) {
235 } else if (!strcasecmp(buf, "delayedretry")) {
236 } else if (!strcasecmp(buf, "setvar") || !strcasecmp(buf, "set")) {
240 var = ast_variable_new(c, c2, fn);
242 /* Always insert at the end, because some people want to treat the spool file as a script */
251 ast_log(LOG_WARNING, "Malformed \"%s\" argument. Should be \"%s: variable=value\"\n", buf, buf);
252 } else if (!strcasecmp(buf, "account")) {
253 ast_string_field_set(o, account, c);
254 } else if (!strcasecmp(buf, "alwaysdelete")) {
255 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ALWAYS_DELETE);
256 } else if (!strcasecmp(buf, "archive")) {
257 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ARCHIVE);
258 } else if (!strcasecmp(buf, "early_media")) {
259 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_EARLY_MEDIA);
261 ast_log(LOG_WARNING, "Unknown keyword '%s' at line %d of %s\n", buf, lineno, fn);
264 ast_log(LOG_NOTICE, "Syntax error at line %d of %s\n", lineno, fn);
267 ast_string_field_set(o, fn, fn);
268 if (ast_strlen_zero(o->tech) || ast_strlen_zero(o->dest) || (ast_strlen_zero(o->app) && ast_strlen_zero(o->exten))) {
269 ast_log(LOG_WARNING, "At least one of app or extension must be specified, along with tech and dest in file %s\n", fn);
275 static void safe_append(struct outgoing *o, time_t now, char *s)
278 struct utimbuf tbuf = { .actime = now, .modtime = now + o->retrytime };
280 ast_debug(1, "Outgoing %s/%s: %s\n", o->tech, o->dest, s);
282 if ((f = fopen(o->fn, "a"))) {
283 fprintf(f, "\n%s: %ld %d (%ld)\n", s, (long)ast_mainpid, o->retries, (long) now);
287 /* Update the file time */
288 if (utime(o->fn, &tbuf)) {
289 ast_log(LOG_WARNING, "Unable to set utime on %s: %s\n", o->fn, strerror(errno));
294 * \brief Remove a call file from the outgoing queue optionally moving it in the archive dir
296 * \param o the pointer to outgoing struct
297 * \param status the exit status of the call. Can be "Completed", "Failed" or "Expired"
299 static int remove_from_queue(struct outgoing *o, const char *status)
305 if (!ast_test_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE)) {
306 struct stat current_file_status;
308 if (!stat(o->fn, ¤t_file_status)) {
309 if (time(NULL) < current_file_status.st_mtime) {
315 if (!ast_test_flag(&o->options, SPOOL_FLAG_ARCHIVE)) {
320 if (ast_mkdir(qdonedir, 0777)) {
321 ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool archiving disabled\n", qdonedir);
326 if (!(bname = strrchr(o->fn, '/'))) {
332 snprintf(newfn, sizeof(newfn), "%s/%s", qdonedir, bname);
333 /* a existing call file the archive dir is overwritten */
335 if (rename(o->fn, newfn) != 0) {
340 /* Only append to the file AFTER we move it out of the watched directory,
341 * otherwise the fclose() causes another event for inotify(7) */
342 if ((f = fopen(newfn, "a"))) {
343 fprintf(f, "Status: %s\n", status);
350 static void *attempt_thread(void *data)
352 struct outgoing *o = data;
354 if (!ast_strlen_zero(o->app)) {
355 ast_verb(3, "Attempting call on %s/%s for application %s(%s) (Retry %d)\n", o->tech, o->dest, o->app, o->data, o->retries);
356 res = ast_pbx_outgoing_app(o->tech, o->capabilities, o->dest, o->waittime * 1000,
357 o->app, o->data, &reason, 2 /* wait to finish */, o->cid_num, o->cid_name,
358 o->vars, o->account, NULL);
361 ast_verb(3, "Attempting call on %s/%s for %s@%s:%d (Retry %d)\n", o->tech, o->dest, o->exten, o->context,o->priority, o->retries);
362 res = ast_pbx_outgoing_exten(o->tech, o->capabilities, o->dest,
363 o->waittime * 1000, o->context, o->exten, o->priority, &reason,
364 2 /* wait to finish */, o->cid_num, o->cid_name, o->vars, o->account, NULL,
365 ast_test_flag(&o->options, SPOOL_FLAG_EARLY_MEDIA));
369 ast_log(LOG_NOTICE, "Call failed to go through, reason (%d) %s\n", reason, ast_channel_reason2str(reason));
370 if (o->retries >= o->maxretries + 1) {
371 /* Max retries exceeded */
372 ast_log(LOG_NOTICE, "Queued call to %s/%s expired without completion after %d attempt%s\n", o->tech, o->dest, o->retries - 1, ((o->retries - 1) != 1) ? "s" : "");
373 remove_from_queue(o, "Expired");
375 /* Notate that the call is still active */
376 safe_append(o, time(NULL), "EndRetry");
377 #if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
378 queue_file(o->fn, time(NULL) + o->retrytime);
382 ast_log(LOG_NOTICE, "Call completed to %s/%s\n", o->tech, o->dest);
383 remove_from_queue(o, "Completed");
389 static void launch_service(struct outgoing *o)
394 if ((ret = ast_pthread_create_detached(&t, NULL, attempt_thread, o))) {
395 ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
400 /* Called from scan_thread or queue_file */
401 static int scan_service(const char *fn, time_t now)
403 struct outgoing *o = NULL;
407 if (!(o = ast_calloc(1, sizeof(*o)))) {
408 ast_log(LOG_WARNING, "Out of memory ;(\n");
412 if (init_outgoing(o)) {
413 /* No need to call free_outgoing here since we know the failure
414 * was to allocate string fields and no variables have been allocated
421 /* Attempt to open the file */
422 if (!(f = fopen(fn, "r"))) {
423 remove_from_queue(o, "Failed");
425 #if !defined(HAVE_INOTIFY) && !defined(HAVE_KQUEUE)
426 ast_log(LOG_WARNING, "Unable to open %s: %s, deleting\n", fn, strerror(errno));
431 /* Read in and verify the contents */
432 if (apply_outgoing(o, fn, f)) {
433 remove_from_queue(o, "Failed");
435 ast_log(LOG_WARNING, "Invalid file contents in %s, deleting\n", fn);
441 printf("Filename: %s, Retries: %d, max: %d\n", fn, o->retries, o->maxretries);
444 if (o->retries <= o->maxretries) {
446 if (o->callingpid && (o->callingpid == ast_mainpid)) {
447 safe_append(o, time(NULL), "DelayedRetry");
448 ast_debug(1, "Delaying retry since we're currently running '%s'\n", o->fn);
451 /* Increment retries */
453 /* If someone else was calling, they're presumably gone now
454 so abort their retry and continue as we were... */
456 safe_append(o, time(NULL), "AbortRetry");
458 safe_append(o, now, "StartRetry");
463 ast_log(LOG_NOTICE, "Queued call to %s/%s expired without completion after %d attempt%s\n", o->tech, o->dest, o->retries - 1, ((o->retries - 1) != 1) ? "s" : "");
464 remove_from_queue(o, "Expired");
471 #if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
473 AST_LIST_ENTRY(direntry) list;
478 static AST_LIST_HEAD_STATIC(dirlist, direntry);
480 #if defined(HAVE_INOTIFY)
481 /* Only one thread is accessing this list, so no lock is necessary */
482 static AST_LIST_HEAD_NOLOCK_STATIC(createlist, direntry);
483 static AST_LIST_HEAD_NOLOCK_STATIC(openlist, direntry);
486 static void queue_file(const char *filename, time_t when)
489 struct direntry *cur, *new;
491 time_t now = time(NULL);
493 if (filename[0] != '/') {
494 char *fn = ast_alloca(strlen(qdir) + strlen(filename) + 2);
495 sprintf(fn, "%s/%s", qdir, filename); /* SAFE */
500 if (stat(filename, &st)) {
501 ast_log(LOG_WARNING, "Unable to stat %s: %s\n", filename, strerror(errno));
505 if (!S_ISREG(st.st_mode)) {
512 /* Need to check the existing list in order to avoid duplicates. */
513 AST_LIST_LOCK(&dirlist);
514 AST_LIST_TRAVERSE(&dirlist, cur, list) {
515 if (cur->mtime == when && !strcmp(filename, cur->name)) {
516 AST_LIST_UNLOCK(&dirlist);
521 if ((res = when) > now || (res = scan_service(filename, now)) > 0) {
522 if (!(new = ast_calloc(1, sizeof(*new) + strlen(filename) + 1))) {
523 AST_LIST_UNLOCK(&dirlist);
527 strcpy(new->name, filename);
528 /* List is ordered by mtime */
529 if (AST_LIST_EMPTY(&dirlist)) {
530 AST_LIST_INSERT_HEAD(&dirlist, new, list);
533 AST_LIST_TRAVERSE_SAFE_BEGIN(&dirlist, cur, list) {
534 if (cur->mtime > new->mtime) {
535 AST_LIST_INSERT_BEFORE_CURRENT(new, list);
540 AST_LIST_TRAVERSE_SAFE_END
542 AST_LIST_INSERT_TAIL(&dirlist, new, list);
546 AST_LIST_UNLOCK(&dirlist);
550 static void queue_file_create(const char *filename)
552 struct direntry *cur;
554 AST_LIST_TRAVERSE(&createlist, cur, list) {
555 if (!strcmp(cur->name, filename)) {
560 if (!(cur = ast_calloc(1, sizeof(*cur) + strlen(filename) + 1))) {
563 strcpy(cur->name, filename);
564 /* We'll handle this file unless an IN_OPEN event occurs within 2 seconds */
565 cur->mtime = time(NULL) + 2;
566 AST_LIST_INSERT_TAIL(&createlist, cur, list);
569 static void queue_file_open(const char *filename)
571 struct direntry *cur;
573 AST_LIST_TRAVERSE_SAFE_BEGIN(&createlist, cur, list) {
574 if (!strcmp(cur->name, filename)) {
575 AST_LIST_REMOVE_CURRENT(list);
576 AST_LIST_INSERT_TAIL(&openlist, cur, list);
580 AST_LIST_TRAVERSE_SAFE_END
583 static void queue_created_files(void)
585 struct direntry *cur;
586 time_t now = time(NULL);
588 AST_LIST_TRAVERSE_SAFE_BEGIN(&createlist, cur, list) {
589 if (cur->mtime > now) {
593 AST_LIST_REMOVE_CURRENT(list);
594 queue_file(cur->name, 0);
597 AST_LIST_TRAVERSE_SAFE_END
600 static void queue_file_write(const char *filename)
602 struct direntry *cur;
603 /* Only queue entries where an IN_CREATE preceded the IN_CLOSE_WRITE */
604 AST_LIST_TRAVERSE_SAFE_BEGIN(&openlist, cur, list) {
605 if (!strcmp(cur->name, filename)) {
606 AST_LIST_REMOVE_CURRENT(list);
608 queue_file(filename, 0);
612 AST_LIST_TRAVERSE_SAFE_END
616 static void *scan_thread(void *unused)
621 struct timespec ts = { .tv_sec = 1 };
624 int inotify_fd = inotify_init();
625 struct inotify_event *iev;
626 char buf[8192] __attribute__((aligned (sizeof(int))));
627 struct pollfd pfd = { .fd = inotify_fd, .events = POLLIN };
629 struct timespec nowait = { 0, 1 };
630 int inotify_fd = kqueue();
633 struct direntry *cur;
635 while (!ast_fully_booted) {
636 nanosleep(&ts, NULL);
639 if (inotify_fd < 0) {
640 ast_log(LOG_ERROR, "Unable to initialize "
651 inotify_add_watch(inotify_fd, qdir, IN_CREATE | IN_OPEN | IN_CLOSE_WRITE | IN_MOVED_TO);
654 /* First, run through the directory and clear existing entries */
655 if (!(dir = opendir(qdir))) {
656 ast_log(LOG_ERROR, "Unable to open directory %s: %s\n", qdir, strerror(errno));
661 EV_SET(&kev, dirfd(dir), EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR, NOTE_WRITE, 0, NULL);
662 if (kevent(inotify_fd, &kev, 1, NULL, 0, &nowait) < 0 && errno != 0) {
663 ast_log(LOG_ERROR, "Unable to watch directory %s: %s\n", qdir, strerror(errno));
667 while ((de = readdir(dir))) {
668 queue_file(de->d_name, 0);
672 /* Directory needs to remain open for kqueue(2) */
676 /* Wait for either a) next timestamp to occur, or b) a change to happen */
678 time_t next = AST_LIST_EMPTY(&dirlist) ? INT_MAX : AST_LIST_FIRST(&dirlist)->mtime;
684 /* Convert from seconds to milliseconds, unless there's nothing
685 * in the queue already, in which case, we wait forever. */
686 int waittime = next == INT_MAX ? -1 : (next - now) * 1000;
687 if (!AST_LIST_EMPTY(&createlist)) {
690 /* When a file arrives, add it to the queue, in mtime order. */
691 if ((res = poll(&pfd, 1, waittime)) > 0 && (stage = 1) &&
692 (res = read(inotify_fd, &buf, sizeof(buf))) >= sizeof(*iev)) {
694 /* File(s) added to directory, add them to my list */
695 for (iev = (void *) buf; res >= sizeof(*iev); iev = (struct inotify_event *) (((char *) iev) + len)) {
696 /* For an IN_MOVED_TO event, simply process the file. However, if
697 * we get an IN_CREATE event it *might* be an open(O_CREAT) or it
698 * might be a hardlink (like smsq does, since rename() might
699 * overwrite an existing file). So we have to see if we get a
700 * subsequent IN_OPEN event on the same file. If we do, keep it
701 * on the openlist and wait for the corresponding IN_CLOSE_WRITE.
702 * If we *don't* see an IN_OPEN event, then it was a hard link so
703 * it can be processed immediately.
705 * Unfortunately, although open(O_CREAT) is an atomic file system
706 * operation, the inotify subsystem doesn't give it to us in a
707 * single event with both IN_CREATE|IN_OPEN set. It's two separate
708 * events, and the kernel doesn't even give them to us at the same
709 * time. We can read() from inotify_fd after the IN_CREATE event,
710 * and get *nothing* from it. The IN_OPEN arrives only later! So
711 * we have a very short timeout of 2 seconds. */
712 if (iev->mask & IN_CREATE) {
713 queue_file_create(iev->name);
714 } else if (iev->mask & IN_OPEN) {
715 queue_file_open(iev->name);
716 } else if (iev->mask & IN_CLOSE_WRITE) {
717 queue_file_write(iev->name);
718 } else if (iev->mask & IN_MOVED_TO) {
719 queue_file(iev->name, 0);
721 ast_log(LOG_ERROR, "Unexpected event %d for file '%s'\n", (int) iev->mask, iev->name);
724 len = sizeof(*iev) + iev->len;
727 } else if (res < 0 && errno != EINTR && errno != EAGAIN) {
728 ast_debug(1, "Got an error back from %s(2): %s\n", stage ? "read" : "poll", strerror(errno));
732 queue_created_files();
734 struct timespec ts2 = { next - now, 0 };
735 if (kevent(inotify_fd, NULL, 0, &kev, 1, &ts2) <= 0) {
736 /* Interrupt or timeout, restart calculations */
739 /* Directory changed, rescan */
741 while ((de = readdir(dir))) {
742 queue_file(de->d_name, 0);
749 /* Empty the list of all entries ready to be processed */
750 AST_LIST_LOCK(&dirlist);
751 while (!AST_LIST_EMPTY(&dirlist) && AST_LIST_FIRST(&dirlist)->mtime <= now) {
752 cur = AST_LIST_REMOVE_HEAD(&dirlist, list);
753 queue_file(cur->name, cur->mtime);
756 AST_LIST_UNLOCK(&dirlist);
762 static void *scan_thread(void *unused)
773 struct timespec ts = { .tv_sec = 1 };
775 while (!ast_fully_booted) {
776 nanosleep(&ts, NULL);
781 nanosleep(&ts, NULL);
784 if (stat(qdir, &st)) {
785 ast_log(LOG_WARNING, "Unable to stat %s\n", qdir);
789 /* Make sure it is time for us to execute our check */
790 if (!force_poll && st.st_mtime == last && (!next || now < next)) {
792 * The directory timestamp did not change and any delayed
793 * call-file is not ready to be executed.
799 printf("atime: %ld, mtime: %ld, ctime: %ld\n", st.st_atime, st.st_mtime, st.st_ctime);
800 printf("Ooh, something changed / timeout\n");
803 if (!(dir = opendir(qdir))) {
804 ast_log(LOG_WARNING, "Unable to open directory %s: %s\n", qdir, strerror(errno));
809 * Since the dir timestamp is available at one second
810 * resolution, we cannot know if it was updated within the same
811 * second after we scanned it. Therefore, we will force another
812 * scan if the dir was just modified.
814 force_poll = (st.st_mtime == now);
818 while ((de = readdir(dir))) {
819 snprintf(fn, sizeof(fn), "%s/%s", qdir, de->d_name);
821 ast_log(LOG_WARNING, "Unable to stat %s: %s\n", fn, strerror(errno));
824 if (!S_ISREG(st.st_mode)) {
825 /* Not a regular file. */
828 if (st.st_mtime <= now) {
829 res = scan_service(fn, now);
831 /* The call-file is delayed or to be retried later. */
832 if (!next || res < next) {
833 /* This delayed call file expires earlier. */
837 ast_log(LOG_WARNING, "Failed to scan service '%s'\n", fn);
839 /* Expired entry: must recheck on the next go-around */
843 /* The file's timestamp is in the future. */
844 if (!next || st.st_mtime < next) {
845 /* This call-file's timestamp expires earlier. */
856 static int unload_module(void)
861 static int load_module(void)
865 snprintf(qdir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing");
866 if (ast_mkdir(qdir, 0777)) {
867 ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool disabled\n", qdir);
868 return AST_MODULE_LOAD_DECLINE;
870 snprintf(qdonedir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing_done");
872 if ((ret = ast_pthread_create_detached_background(&thread, NULL, scan_thread, NULL))) {
873 ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
874 return AST_MODULE_LOAD_FAILURE;
877 return AST_MODULE_LOAD_SUCCESS;
880 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Outgoing Spool Support");