ASTERISK_REGISTER_FILE no longer has any purpose so this commit removes all traces of it. Previously exported symbols removed: * __ast_register_file * __ast_unregister_file * ast_complete_source_filename This also removes the mtx_prof static variable that was declared when MTX_PROFILE was enabled. This variable was only used in lock.c so it is now initialized in that file only. ASTERISK-26480 #close Change-Id: I1074af07d71f9e159c48ef36631aa432c86f9966
927 lines
26 KiB
C
927 lines
26 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2010, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Full-featured outgoing call spool support
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*
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include <sys/stat.h>
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#include <time.h>
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#include <utime.h>
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#include <dirent.h>
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#ifdef HAVE_INOTIFY
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#include <sys/inotify.h>
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#elif defined(HAVE_KQUEUE)
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/event.h>
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#include <fcntl.h>
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#endif
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#include "asterisk/paths.h" /* use ast_config_AST_SPOOL_DIR */
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#include "asterisk/lock.h"
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#include "asterisk/file.h"
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#include "asterisk/logger.h"
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#include "asterisk/channel.h"
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#include "asterisk/callerid.h"
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#include "asterisk/pbx.h"
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#include "asterisk/module.h"
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#include "asterisk/utils.h"
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#include "asterisk/options.h"
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#include "asterisk/format.h"
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#include "asterisk/format_cache.h"
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/*
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* pbx_spool is similar in spirit to qcall, but with substantially enhanced functionality...
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* The spool file contains a header
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*/
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enum {
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/*! Always delete the call file after a call succeeds or the
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* maximum number of retries is exceeded, even if the
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* modification time of the call file is in the future.
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*/
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SPOOL_FLAG_ALWAYS_DELETE = (1 << 0),
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/* Don't unlink the call file after processing, move in qdonedir */
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SPOOL_FLAG_ARCHIVE = (1 << 1),
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/* Connect the channel with the outgoing extension once early media is received */
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SPOOL_FLAG_EARLY_MEDIA = (1 << 2),
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};
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static char qdir[255];
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static char qdonedir[255];
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struct outgoing {
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int retries; /*!< Current number of retries */
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int maxretries; /*!< Maximum number of retries permitted */
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int retrytime; /*!< How long to wait between retries (in seconds) */
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int waittime; /*!< How long to wait for an answer */
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long callingpid; /*!< PID which is currently calling */
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struct ast_format_cap *capabilities; /*!< Formats (codecs) for this call */
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AST_DECLARE_STRING_FIELDS (
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AST_STRING_FIELD(fn); /*!< File name of call file */
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AST_STRING_FIELD(tech); /*!< Which channel technology to use for outgoing call */
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AST_STRING_FIELD(dest); /*!< Which device/line to use for outgoing call */
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AST_STRING_FIELD(app); /*!< If application: Application name */
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AST_STRING_FIELD(data); /*!< If application: Application data */
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AST_STRING_FIELD(exten); /*!< If extension/context/priority: Extension in dialplan */
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AST_STRING_FIELD(context); /*!< If extension/context/priority: Dialplan context */
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AST_STRING_FIELD(cid_num); /*!< CallerID Information: Number/extension */
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AST_STRING_FIELD(cid_name); /*!< CallerID Information: Name */
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AST_STRING_FIELD(account); /*!< account code */
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);
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int priority; /*!< If extension/context/priority: Dialplan priority */
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struct ast_variable *vars; /*!< Variables and Functions */
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int maxlen; /*!< Maximum length of call */
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struct ast_flags options; /*!< options */
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};
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#if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
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struct direntry {
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AST_LIST_ENTRY(direntry) list;
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time_t mtime;
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char name[0];
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};
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static AST_LIST_HEAD_STATIC(dirlist, direntry);
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static void queue_file(const char *filename, time_t when);
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#endif
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static void free_outgoing(struct outgoing *o)
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{
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if (o->vars) {
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ast_variables_destroy(o->vars);
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}
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ao2_cleanup(o->capabilities);
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ast_string_field_free_memory(o);
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ast_free(o);
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}
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static struct outgoing *new_outgoing(const char *fn)
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{
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struct outgoing *o;
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o = ast_calloc(1, sizeof(*o));
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if (!o) {
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return NULL;
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}
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/* Initialize the new object. */
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o->priority = 1;
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o->retrytime = 300;
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o->waittime = 45;
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ast_set_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE);
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if (ast_string_field_init(o, 128)) {
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/*
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* No need to call free_outgoing here since the failure was to
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* allocate string fields and no variables have been allocated
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* yet.
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*/
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ast_free(o);
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return NULL;
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}
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ast_string_field_set(o, fn, fn);
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if (ast_strlen_zero(o->fn)) {
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/* String field set failed. Since this string is important we must fail. */
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free_outgoing(o);
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return NULL;
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}
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o->capabilities = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
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if (!o->capabilities) {
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free_outgoing(o);
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return NULL;
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}
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ast_format_cap_append(o->capabilities, ast_format_slin, 0);
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return o;
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}
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static int apply_outgoing(struct outgoing *o, FILE *f)
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{
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char buf[256];
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char *c, *c2;
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int lineno = 0;
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struct ast_variable *var, *last = o->vars;
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while (last && last->next) {
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last = last->next;
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}
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while(fgets(buf, sizeof(buf), f)) {
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lineno++;
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/* Trim comments */
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c = buf;
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while ((c = strchr(c, '#'))) {
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if ((c == buf) || (*(c-1) == ' ') || (*(c-1) == '\t'))
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*c = '\0';
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else
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c++;
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}
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c = buf;
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while ((c = strchr(c, ';'))) {
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if ((c > buf) && (c[-1] == '\\')) {
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memmove(c - 1, c, strlen(c) + 1);
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c++;
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} else {
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*c = '\0';
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break;
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}
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}
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/* Trim trailing white space */
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ast_trim_blanks(buf);
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if (ast_strlen_zero(buf)) {
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continue;
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}
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c = strchr(buf, ':');
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if (!c) {
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ast_log(LOG_NOTICE, "Syntax error at line %d of %s\n", lineno, o->fn);
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continue;
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}
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*c = '\0';
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c = ast_skip_blanks(c + 1);
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#if 0
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printf("'%s' is '%s' at line %d\n", buf, c, lineno);
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#endif
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if (!strcasecmp(buf, "channel")) {
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if ((c2 = strchr(c, '/'))) {
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*c2 = '\0';
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c2++;
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ast_string_field_set(o, tech, c);
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ast_string_field_set(o, dest, c2);
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} else {
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ast_log(LOG_NOTICE, "Channel should be in form Tech/Dest at line %d of %s\n", lineno, o->fn);
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}
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} else if (!strcasecmp(buf, "callerid")) {
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char cid_name[80] = {0}, cid_num[80] = {0};
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ast_callerid_split(c, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
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ast_string_field_set(o, cid_num, cid_num);
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ast_string_field_set(o, cid_name, cid_name);
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} else if (!strcasecmp(buf, "application")) {
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ast_string_field_set(o, app, c);
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} else if (!strcasecmp(buf, "data")) {
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ast_string_field_set(o, data, c);
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} else if (!strcasecmp(buf, "maxretries")) {
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if (sscanf(c, "%30d", &o->maxretries) != 1) {
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ast_log(LOG_WARNING, "Invalid max retries at line %d of %s\n", lineno, o->fn);
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o->maxretries = 0;
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}
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} else if (!strcasecmp(buf, "codecs")) {
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ast_format_cap_update_by_allow_disallow(o->capabilities, c, 1);
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} else if (!strcasecmp(buf, "context")) {
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ast_string_field_set(o, context, c);
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} else if (!strcasecmp(buf, "extension")) {
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ast_string_field_set(o, exten, c);
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} else if (!strcasecmp(buf, "priority")) {
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if ((sscanf(c, "%30d", &o->priority) != 1) || (o->priority < 1)) {
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ast_log(LOG_WARNING, "Invalid priority at line %d of %s\n", lineno, o->fn);
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o->priority = 1;
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}
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} else if (!strcasecmp(buf, "retrytime")) {
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if ((sscanf(c, "%30d", &o->retrytime) != 1) || (o->retrytime < 1)) {
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ast_log(LOG_WARNING, "Invalid retrytime at line %d of %s\n", lineno, o->fn);
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o->retrytime = 300;
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}
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} else if (!strcasecmp(buf, "waittime")) {
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if ((sscanf(c, "%30d", &o->waittime) != 1) || (o->waittime < 1)) {
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ast_log(LOG_WARNING, "Invalid waittime at line %d of %s\n", lineno, o->fn);
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o->waittime = 45;
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}
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} else if (!strcasecmp(buf, "retry")) {
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o->retries++;
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} else if (!strcasecmp(buf, "startretry")) {
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if (sscanf(c, "%30ld", &o->callingpid) != 1) {
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ast_log(LOG_WARNING, "Unable to retrieve calling PID!\n");
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o->callingpid = 0;
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}
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} else if (!strcasecmp(buf, "endretry") || !strcasecmp(buf, "abortretry")) {
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o->callingpid = 0;
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o->retries++;
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} else if (!strcasecmp(buf, "delayedretry")) {
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} else if (!strcasecmp(buf, "setvar") || !strcasecmp(buf, "set")) {
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c2 = c;
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strsep(&c2, "=");
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if (c2) {
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var = ast_variable_new(c, c2, o->fn);
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if (var) {
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/* Always insert at the end, because some people want to treat the spool file as a script */
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if (last) {
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last->next = var;
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} else {
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o->vars = var;
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}
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last = var;
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}
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} else
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ast_log(LOG_WARNING, "Malformed \"%s\" argument. Should be \"%s: variable=value\"\n", buf, buf);
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} else if (!strcasecmp(buf, "account")) {
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ast_string_field_set(o, account, c);
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} else if (!strcasecmp(buf, "alwaysdelete")) {
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ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ALWAYS_DELETE);
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} else if (!strcasecmp(buf, "archive")) {
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ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ARCHIVE);
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} else if (!strcasecmp(buf, "early_media")) {
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ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_EARLY_MEDIA);
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} else {
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ast_log(LOG_WARNING, "Unknown keyword '%s' at line %d of %s\n", buf, lineno, o->fn);
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}
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}
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if (ast_strlen_zero(o->tech) || ast_strlen_zero(o->dest) || (ast_strlen_zero(o->app) && ast_strlen_zero(o->exten))) {
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ast_log(LOG_WARNING, "At least one of app or extension must be specified, along with tech and dest in file %s\n", o->fn);
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return -1;
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}
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return 0;
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}
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static void safe_append(struct outgoing *o, time_t now, char *s)
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{
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FILE *f;
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struct utimbuf tbuf = { .actime = now, .modtime = now + o->retrytime };
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ast_debug(1, "Outgoing %s/%s: %s\n", o->tech, o->dest, s);
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if ((f = fopen(o->fn, "a"))) {
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fprintf(f, "\n%s: %ld %d (%ld)\n", s, (long)ast_mainpid, o->retries, (long) now);
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fclose(f);
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}
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/* Update the file time */
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if (utime(o->fn, &tbuf)) {
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ast_log(LOG_WARNING, "Unable to set utime on %s: %s\n", o->fn, strerror(errno));
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}
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}
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/*!
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* \brief Remove a call file from the outgoing queue optionally moving it in the archive dir
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*
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* \param o the pointer to outgoing struct
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* \param status the exit status of the call. Can be "Completed", "Failed" or "Expired"
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*/
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static int remove_from_queue(struct outgoing *o, const char *status)
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{
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FILE *f;
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char newfn[256];
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const char *bname;
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#if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
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struct direntry *cur;
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#endif
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if (!ast_test_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE)) {
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struct stat current_file_status;
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if (!stat(o->fn, ¤t_file_status)) {
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if (time(NULL) < current_file_status.st_mtime) {
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return 0;
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}
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}
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}
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#if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
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AST_LIST_LOCK(&dirlist);
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AST_LIST_TRAVERSE_SAFE_BEGIN(&dirlist, cur, list) {
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if (!strcmp(cur->name, o->fn)) {
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AST_LIST_REMOVE_CURRENT(list);
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ast_free(cur);
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break;
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}
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}
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AST_LIST_TRAVERSE_SAFE_END;
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AST_LIST_UNLOCK(&dirlist);
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#endif
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if (!ast_test_flag(&o->options, SPOOL_FLAG_ARCHIVE)) {
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unlink(o->fn);
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return 0;
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}
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if (ast_mkdir(qdonedir, 0777)) {
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ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool archiving disabled\n", qdonedir);
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unlink(o->fn);
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return -1;
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}
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if (!(bname = strrchr(o->fn, '/'))) {
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bname = o->fn;
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} else {
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bname++;
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}
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snprintf(newfn, sizeof(newfn), "%s/%s", qdonedir, bname);
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/* If there is already a call file with the name in the archive dir, it will be overwritten. */
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unlink(newfn);
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if (rename(o->fn, newfn) != 0) {
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unlink(o->fn);
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return -1;
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}
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/* Only append to the file AFTER we move it out of the watched directory,
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* otherwise the fclose() causes another event for inotify(7) */
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if ((f = fopen(newfn, "a"))) {
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fprintf(f, "Status: %s\n", status);
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fclose(f);
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}
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return 0;
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}
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static void *attempt_thread(void *data)
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{
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struct outgoing *o = data;
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int res, reason;
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if (!ast_strlen_zero(o->app)) {
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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);
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res = ast_pbx_outgoing_app(o->tech, o->capabilities, o->dest, o->waittime * 1000,
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o->app, o->data, &reason, 2 /* wait to finish */, o->cid_num, o->cid_name,
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o->vars, o->account, NULL, NULL);
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} else {
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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);
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res = ast_pbx_outgoing_exten(o->tech, o->capabilities, o->dest,
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o->waittime * 1000, o->context, o->exten, o->priority, &reason,
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2 /* wait to finish */, o->cid_num, o->cid_name, o->vars, o->account, NULL,
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ast_test_flag(&o->options, SPOOL_FLAG_EARLY_MEDIA), NULL);
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}
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if (res) {
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ast_log(LOG_NOTICE, "Call failed to go through, reason (%d) %s\n", reason, ast_channel_reason2str(reason));
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if (o->retries >= o->maxretries + 1) {
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/* Max retries exceeded */
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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" : "");
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remove_from_queue(o, "Expired");
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} else {
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/* Notate that the call is still active */
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safe_append(o, time(NULL), "EndRetry");
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#if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
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queue_file(o->fn, time(NULL) + o->retrytime);
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#endif
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}
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} else {
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ast_log(LOG_NOTICE, "Call completed to %s/%s\n", o->tech, o->dest);
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remove_from_queue(o, "Completed");
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}
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free_outgoing(o);
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return NULL;
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}
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static void launch_service(struct outgoing *o)
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{
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pthread_t t;
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int ret;
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if ((ret = ast_pthread_create_detached(&t, NULL, attempt_thread, o))) {
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ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
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free_outgoing(o);
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}
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}
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/* Called from scan_thread or queue_file */
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static int scan_service(const char *fn, time_t now)
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{
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struct outgoing *o;
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FILE *f;
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int res;
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o = new_outgoing(fn);
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if (!o) {
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return -1;
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}
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/* Attempt to open the file */
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f = fopen(o->fn, "r");
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if (!f) {
|
|
#if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
|
|
/*!
|
|
* \todo XXX There is some odd delayed duplicate servicing of
|
|
* call files going on. We need to suppress the error message
|
|
* if the file does not exist as a result.
|
|
*/
|
|
if (errno != ENOENT)
|
|
#endif
|
|
{
|
|
ast_log(LOG_WARNING, "Unable to open %s: '%s'(%d), deleting\n",
|
|
o->fn, strerror(errno), (int) errno);
|
|
}
|
|
remove_from_queue(o, "Failed");
|
|
free_outgoing(o);
|
|
return -1;
|
|
}
|
|
|
|
/* Read in and verify the contents */
|
|
res = apply_outgoing(o, f);
|
|
fclose(f);
|
|
if (res) {
|
|
ast_log(LOG_WARNING, "Invalid file contents in %s, deleting\n", o->fn);
|
|
remove_from_queue(o, "Failed");
|
|
free_outgoing(o);
|
|
return -1;
|
|
}
|
|
|
|
ast_debug(1, "Filename: %s, Retries: %d, max: %d\n", o->fn, o->retries, o->maxretries);
|
|
if (o->retries <= o->maxretries) {
|
|
now += o->retrytime;
|
|
if (o->callingpid && (o->callingpid == ast_mainpid)) {
|
|
safe_append(o, time(NULL), "DelayedRetry");
|
|
ast_debug(1, "Delaying retry since we're currently running '%s'\n", o->fn);
|
|
free_outgoing(o);
|
|
} else {
|
|
/* Increment retries */
|
|
o->retries++;
|
|
/* If someone else was calling, they're presumably gone now
|
|
so abort their retry and continue as we were... */
|
|
if (o->callingpid)
|
|
safe_append(o, time(NULL), "AbortRetry");
|
|
|
|
safe_append(o, now, "StartRetry");
|
|
launch_service(o);
|
|
}
|
|
return now;
|
|
}
|
|
|
|
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" : "");
|
|
remove_from_queue(o, "Expired");
|
|
free_outgoing(o);
|
|
return 0;
|
|
}
|
|
|
|
|
|
#if defined(HAVE_INOTIFY)
|
|
/* Only one thread is accessing this list, so no lock is necessary */
|
|
static AST_LIST_HEAD_NOLOCK_STATIC(createlist, direntry);
|
|
static AST_LIST_HEAD_NOLOCK_STATIC(openlist, direntry);
|
|
#endif
|
|
|
|
#if defined(HAVE_INOTIFY) || defined(HAVE_KQUEUE)
|
|
|
|
static void queue_file(const char *filename, time_t when)
|
|
{
|
|
struct stat st;
|
|
struct direntry *cur, *new;
|
|
int res;
|
|
time_t now = time(NULL);
|
|
|
|
if (!strchr(filename, '/')) {
|
|
char *fn = ast_alloca(strlen(qdir) + strlen(filename) + 2);
|
|
sprintf(fn, "%s/%s", qdir, filename); /* SAFE */
|
|
filename = fn;
|
|
}
|
|
|
|
if (when == 0) {
|
|
if (stat(filename, &st)) {
|
|
ast_log(LOG_WARNING, "Unable to stat %s: %s\n", filename, strerror(errno));
|
|
return;
|
|
}
|
|
|
|
if (!S_ISREG(st.st_mode)) {
|
|
return;
|
|
}
|
|
|
|
when = st.st_mtime;
|
|
}
|
|
|
|
/* Need to check the existing list in order to avoid duplicates. */
|
|
AST_LIST_LOCK(&dirlist);
|
|
AST_LIST_TRAVERSE(&dirlist, cur, list) {
|
|
if (cur->mtime == when && !strcmp(filename, cur->name)) {
|
|
AST_LIST_UNLOCK(&dirlist);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if ((res = when) > now || (res = scan_service(filename, now)) > 0) {
|
|
if (!(new = ast_calloc(1, sizeof(*new) + strlen(filename) + 1))) {
|
|
AST_LIST_UNLOCK(&dirlist);
|
|
return;
|
|
}
|
|
new->mtime = res;
|
|
strcpy(new->name, filename);
|
|
/* List is ordered by mtime */
|
|
if (AST_LIST_EMPTY(&dirlist)) {
|
|
AST_LIST_INSERT_HEAD(&dirlist, new, list);
|
|
} else {
|
|
int found = 0;
|
|
AST_LIST_TRAVERSE_SAFE_BEGIN(&dirlist, cur, list) {
|
|
if (cur->mtime > new->mtime) {
|
|
AST_LIST_INSERT_BEFORE_CURRENT(new, list);
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
AST_LIST_TRAVERSE_SAFE_END
|
|
if (!found) {
|
|
AST_LIST_INSERT_TAIL(&dirlist, new, list);
|
|
}
|
|
}
|
|
}
|
|
AST_LIST_UNLOCK(&dirlist);
|
|
}
|
|
|
|
#ifdef HAVE_INOTIFY
|
|
static void queue_file_create(const char *filename)
|
|
{
|
|
struct direntry *cur;
|
|
|
|
AST_LIST_TRAVERSE(&createlist, cur, list) {
|
|
if (!strcmp(cur->name, filename)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!(cur = ast_calloc(1, sizeof(*cur) + strlen(filename) + 1))) {
|
|
return;
|
|
}
|
|
strcpy(cur->name, filename);
|
|
/* We'll handle this file unless an IN_OPEN event occurs within 2 seconds */
|
|
cur->mtime = time(NULL) + 2;
|
|
AST_LIST_INSERT_TAIL(&createlist, cur, list);
|
|
}
|
|
|
|
static void queue_file_open(const char *filename)
|
|
{
|
|
struct direntry *cur;
|
|
|
|
AST_LIST_TRAVERSE_SAFE_BEGIN(&createlist, cur, list) {
|
|
if (!strcmp(cur->name, filename)) {
|
|
AST_LIST_REMOVE_CURRENT(list);
|
|
AST_LIST_INSERT_TAIL(&openlist, cur, list);
|
|
break;
|
|
}
|
|
}
|
|
AST_LIST_TRAVERSE_SAFE_END
|
|
}
|
|
|
|
static void queue_created_files(void)
|
|
{
|
|
struct direntry *cur;
|
|
time_t now = time(NULL);
|
|
|
|
AST_LIST_TRAVERSE_SAFE_BEGIN(&createlist, cur, list) {
|
|
if (cur->mtime > now) {
|
|
break;
|
|
}
|
|
|
|
AST_LIST_REMOVE_CURRENT(list);
|
|
queue_file(cur->name, 0);
|
|
ast_free(cur);
|
|
}
|
|
AST_LIST_TRAVERSE_SAFE_END
|
|
}
|
|
|
|
static void queue_file_write(const char *filename)
|
|
{
|
|
struct direntry *cur;
|
|
/* Only queue entries where an IN_CREATE preceded the IN_CLOSE_WRITE */
|
|
AST_LIST_TRAVERSE_SAFE_BEGIN(&openlist, cur, list) {
|
|
if (!strcmp(cur->name, filename)) {
|
|
AST_LIST_REMOVE_CURRENT(list);
|
|
ast_free(cur);
|
|
queue_file(filename, 0);
|
|
break;
|
|
}
|
|
}
|
|
AST_LIST_TRAVERSE_SAFE_END
|
|
}
|
|
#endif
|
|
|
|
static void *scan_thread(void *unused)
|
|
{
|
|
DIR *dir;
|
|
struct dirent *de;
|
|
time_t now;
|
|
struct timespec ts = { .tv_sec = 1 };
|
|
#ifdef HAVE_INOTIFY
|
|
ssize_t res;
|
|
int inotify_fd = inotify_init();
|
|
struct inotify_event *iev;
|
|
char buf[8192] __attribute__((aligned (sizeof(int))));
|
|
struct pollfd pfd = { .fd = inotify_fd, .events = POLLIN };
|
|
#else
|
|
struct timespec nowait = { .tv_sec = 0, .tv_nsec = 1 };
|
|
int inotify_fd = kqueue();
|
|
struct kevent kev;
|
|
struct kevent event;
|
|
#endif
|
|
struct direntry *cur;
|
|
|
|
while (!ast_fully_booted) {
|
|
nanosleep(&ts, NULL);
|
|
}
|
|
|
|
if (inotify_fd < 0) {
|
|
ast_log(LOG_ERROR, "Unable to initialize "
|
|
#ifdef HAVE_INOTIFY
|
|
"inotify(7)"
|
|
#else
|
|
"kqueue(2)"
|
|
#endif
|
|
"\n");
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef HAVE_INOTIFY
|
|
inotify_add_watch(inotify_fd, qdir, IN_CREATE | IN_OPEN | IN_CLOSE_WRITE | IN_MOVED_TO);
|
|
#endif
|
|
|
|
/* First, run through the directory and clear existing entries */
|
|
if (!(dir = opendir(qdir))) {
|
|
ast_log(LOG_ERROR, "Unable to open directory %s: %s\n", qdir, strerror(errno));
|
|
return NULL;
|
|
}
|
|
|
|
#ifndef HAVE_INOTIFY
|
|
EV_SET(&kev, dirfd(dir), EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR, NOTE_WRITE, 0, NULL);
|
|
if (kevent(inotify_fd, &kev, 1, &event, 1, &nowait) < 0 && errno != 0) {
|
|
ast_log(LOG_ERROR, "Unable to watch directory %s: %s\n", qdir, strerror(errno));
|
|
}
|
|
#endif
|
|
now = time(NULL);
|
|
while ((de = readdir(dir))) {
|
|
queue_file(de->d_name, 0);
|
|
}
|
|
|
|
#ifdef HAVE_INOTIFY
|
|
/* Directory needs to remain open for kqueue(2) */
|
|
closedir(dir);
|
|
#endif
|
|
|
|
/* Wait for either a) next timestamp to occur, or b) a change to happen */
|
|
for (;/* ever */;) {
|
|
time_t next = AST_LIST_EMPTY(&dirlist) ? INT_MAX : AST_LIST_FIRST(&dirlist)->mtime;
|
|
|
|
time(&now);
|
|
if (next > now) {
|
|
#ifdef HAVE_INOTIFY
|
|
int stage = 0;
|
|
/* Convert from seconds to milliseconds, unless there's nothing
|
|
* in the queue already, in which case, we wait forever. */
|
|
int waittime = next == INT_MAX ? -1 : (next - now) * 1000;
|
|
if (!AST_LIST_EMPTY(&createlist)) {
|
|
waittime = 1000;
|
|
}
|
|
/* When a file arrives, add it to the queue, in mtime order. */
|
|
if ((res = poll(&pfd, 1, waittime)) > 0 && (stage = 1) &&
|
|
(res = read(inotify_fd, &buf, sizeof(buf))) >= sizeof(*iev)) {
|
|
ssize_t len = 0;
|
|
/* File(s) added to directory, add them to my list */
|
|
for (iev = (void *) buf; res >= sizeof(*iev); iev = (struct inotify_event *) (((char *) iev) + len)) {
|
|
/* For an IN_MOVED_TO event, simply process the file. However, if
|
|
* we get an IN_CREATE event it *might* be an open(O_CREAT) or it
|
|
* might be a hardlink (like smsq does, since rename() might
|
|
* overwrite an existing file). So we have to see if we get a
|
|
* subsequent IN_OPEN event on the same file. If we do, keep it
|
|
* on the openlist and wait for the corresponding IN_CLOSE_WRITE.
|
|
* If we *don't* see an IN_OPEN event, then it was a hard link so
|
|
* it can be processed immediately.
|
|
*
|
|
* Unfortunately, although open(O_CREAT) is an atomic file system
|
|
* operation, the inotify subsystem doesn't give it to us in a
|
|
* single event with both IN_CREATE|IN_OPEN set. It's two separate
|
|
* events, and the kernel doesn't even give them to us at the same
|
|
* time. We can read() from inotify_fd after the IN_CREATE event,
|
|
* and get *nothing* from it. The IN_OPEN arrives only later! So
|
|
* we have a very short timeout of 2 seconds. */
|
|
if (iev->mask & IN_CREATE) {
|
|
queue_file_create(iev->name);
|
|
} else if (iev->mask & IN_OPEN) {
|
|
queue_file_open(iev->name);
|
|
} else if (iev->mask & IN_CLOSE_WRITE) {
|
|
queue_file_write(iev->name);
|
|
} else if (iev->mask & IN_MOVED_TO) {
|
|
queue_file(iev->name, 0);
|
|
} else {
|
|
ast_log(LOG_ERROR, "Unexpected event %d for file '%s'\n", (int) iev->mask, iev->name);
|
|
}
|
|
|
|
len = sizeof(*iev) + iev->len;
|
|
res -= len;
|
|
}
|
|
} else if (res < 0 && errno != EINTR && errno != EAGAIN) {
|
|
ast_debug(1, "Got an error back from %s(2): %s\n", stage ? "read" : "poll", strerror(errno));
|
|
}
|
|
time(&now);
|
|
}
|
|
queue_created_files();
|
|
#else
|
|
int num_events;
|
|
/* If queue empty then wait forever */
|
|
if (next == INT_MAX) {
|
|
num_events = kevent(inotify_fd, &kev, 1, &event, 1, NULL);
|
|
} else {
|
|
struct timespec ts2 = { .tv_sec = (unsigned long int)(next - now), .tv_nsec = 0 };
|
|
num_events = kevent(inotify_fd, &kev, 1, &event, 1, &ts2);
|
|
}
|
|
if ((num_events < 0) || (event.flags == EV_ERROR)) {
|
|
ast_debug(10, "KEvent error %s\n", strerror(errno));
|
|
continue;
|
|
} else if (num_events == 0) {
|
|
/* Interrupt or timeout, restart calculations */
|
|
continue;
|
|
} else {
|
|
/* Directory changed, rescan */
|
|
rewinddir(dir);
|
|
while ((de = readdir(dir))) {
|
|
queue_file(de->d_name, 0);
|
|
}
|
|
}
|
|
time(&now);
|
|
}
|
|
#endif
|
|
|
|
/* Empty the list of all entries ready to be processed */
|
|
AST_LIST_LOCK(&dirlist);
|
|
while (!AST_LIST_EMPTY(&dirlist) && AST_LIST_FIRST(&dirlist)->mtime <= now) {
|
|
cur = AST_LIST_REMOVE_HEAD(&dirlist, list);
|
|
queue_file(cur->name, cur->mtime);
|
|
ast_free(cur);
|
|
}
|
|
AST_LIST_UNLOCK(&dirlist);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
#else
|
|
static void *scan_thread(void *unused)
|
|
{
|
|
struct stat st;
|
|
DIR *dir;
|
|
struct dirent *de;
|
|
char fn[256];
|
|
int res;
|
|
int force_poll = 1;
|
|
time_t last = 0;
|
|
time_t next = 0;
|
|
time_t now;
|
|
struct timespec ts = { .tv_sec = 1 };
|
|
|
|
while (!ast_fully_booted) {
|
|
nanosleep(&ts, NULL);
|
|
}
|
|
|
|
for (;;) {
|
|
/* Wait a sec */
|
|
nanosleep(&ts, NULL);
|
|
time(&now);
|
|
|
|
if (stat(qdir, &st)) {
|
|
ast_log(LOG_WARNING, "Unable to stat %s\n", qdir);
|
|
continue;
|
|
}
|
|
|
|
/* Make sure it is time for us to execute our check */
|
|
if (!force_poll && st.st_mtime == last && (!next || now < next)) {
|
|
/*
|
|
* The directory timestamp did not change and any delayed
|
|
* call-file is not ready to be executed.
|
|
*/
|
|
continue;
|
|
}
|
|
|
|
#if 0
|
|
printf("atime: %ld, mtime: %ld, ctime: %ld\n", st.st_atime, st.st_mtime, st.st_ctime);
|
|
printf("Ooh, something changed / timeout\n");
|
|
#endif
|
|
|
|
if (!(dir = opendir(qdir))) {
|
|
ast_log(LOG_WARNING, "Unable to open directory %s: %s\n", qdir, strerror(errno));
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Since the dir timestamp is available at one second
|
|
* resolution, we cannot know if it was updated within the same
|
|
* second after we scanned it. Therefore, we will force another
|
|
* scan if the dir was just modified.
|
|
*/
|
|
force_poll = (st.st_mtime == now);
|
|
|
|
next = 0;
|
|
last = st.st_mtime;
|
|
while ((de = readdir(dir))) {
|
|
snprintf(fn, sizeof(fn), "%s/%s", qdir, de->d_name);
|
|
if (stat(fn, &st)) {
|
|
ast_log(LOG_WARNING, "Unable to stat %s: %s\n", fn, strerror(errno));
|
|
continue;
|
|
}
|
|
if (!S_ISREG(st.st_mode)) {
|
|
/* Not a regular file. */
|
|
continue;
|
|
}
|
|
if (st.st_mtime <= now) {
|
|
res = scan_service(fn, now);
|
|
if (res > 0) {
|
|
/* The call-file is delayed or to be retried later. */
|
|
if (!next || res < next) {
|
|
/* This delayed call file expires earlier. */
|
|
next = res;
|
|
}
|
|
} else if (res) {
|
|
ast_log(LOG_WARNING, "Failed to scan service '%s'\n", fn);
|
|
} else if (!next) {
|
|
/* Expired entry: must recheck on the next go-around */
|
|
next = st.st_mtime;
|
|
}
|
|
} else {
|
|
/* The file's timestamp is in the future. */
|
|
if (!next || st.st_mtime < next) {
|
|
/* This call-file's timestamp expires earlier. */
|
|
next = st.st_mtime;
|
|
}
|
|
}
|
|
}
|
|
closedir(dir);
|
|
}
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
static int unload_module(void)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
static int load_module(void)
|
|
{
|
|
pthread_t thread;
|
|
int ret;
|
|
snprintf(qdir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing");
|
|
if (ast_mkdir(qdir, 0777)) {
|
|
ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool disabled\n", qdir);
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
snprintf(qdonedir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing_done");
|
|
|
|
if ((ret = ast_pthread_create_detached_background(&thread, NULL, scan_thread, NULL))) {
|
|
ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
|
|
return AST_MODULE_LOAD_FAILURE;
|
|
}
|
|
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Outgoing Spool Support");
|