#include "asterisk/channel.h"
Go to the source code of this file.
Data Structures | |
struct | ast_channel_monitor |
Enumerations | |
enum | AST_MONITORING_STATE { AST_MONITOR_RUNNING, AST_MONITOR_PAUSED } |
Functions | |
int | ast_monitor_change_fname (struct ast_channel *chan, const char *fname_base, int need_lock) |
int | ast_monitor_pause (struct ast_channel *chan) |
void | ast_monitor_setjoinfiles (struct ast_channel *chan, int turnon) |
int | ast_monitor_start (struct ast_channel *chan, const char *format_spec, const char *fname_base, int need_lock) |
int | ast_monitor_stop (struct ast_channel *chan, int need_lock) |
int | ast_monitor_unpause (struct ast_channel *chan) |
Definition in file monitor.h.
enum AST_MONITORING_STATE |
Definition at line 28 of file monitor.h.
00028 { 00029 AST_MONITOR_RUNNING, 00030 AST_MONITOR_PAUSED 00031 };
int ast_monitor_change_fname | ( | struct ast_channel * | chan, | |
const char * | fname_base, | |||
int | need_lock | |||
) |
Definition at line 371 of file res_monitor.c.
References ast_config_AST_MONITOR_DIR, ast_copy_string(), ast_log(), ast_safe_system(), ast_strlen_zero(), errno, ast_channel_monitor::filename_base, ast_channel_monitor::filename_changed, free, LOCK_IF_NEEDED, LOG_DEBUG, LOG_ERROR, LOG_WARNING, ast_channel::monitor, ast_channel::name, name, option_debug, strdup, and UNLOCK_IF_NEEDED.
Referenced by change_monitor_action(), change_monitor_exec(), start_monitor_action(), and start_monitor_exec().
00372 { 00373 char tmp[256]; 00374 if (ast_strlen_zero(fname_base)) { 00375 ast_log(LOG_WARNING, "Cannot change monitor filename of channel %s to null\n", chan->name); 00376 return -1; 00377 } 00378 00379 LOCK_IF_NEEDED(chan, need_lock); 00380 00381 if (chan->monitor) { 00382 int directory = strchr(fname_base, '/') ? 1 : 0; 00383 const char *absolute = *fname_base == '/' ? "" : ast_config_AST_MONITOR_DIR; 00384 const char *absolute_suffix = *fname_base == '/' ? "" : "/"; 00385 char tmpstring[sizeof(chan->monitor->filename_base)] = ""; 00386 int i, fd[2] = { -1, -1 }, doexit = 0; 00387 00388 /* before continuing, see if we're trying to rename the file to itself... */ 00389 snprintf(tmpstring, sizeof(tmpstring), "%s%s%s", absolute, absolute_suffix, fname_base); 00390 00391 /* try creating the directory just in case it doesn't exist */ 00392 if (directory) { 00393 char *name = strdup(fname_base); 00394 snprintf(tmp, sizeof(tmp), "mkdir -p \"%s%s%s\"", absolute, absolute_suffix, dirname(name)); 00395 free(name); 00396 ast_safe_system(tmp); 00397 } 00398 00399 /*!\note We cannot just compare filenames, due to symlinks, relative 00400 * paths, and other possible filesystem issues. We could use 00401 * realpath(3), but its use is discouraged. However, if we try to 00402 * create the same file from two different paths, the second will 00403 * fail, and so we have our notification that the filenames point to 00404 * the same path. 00405 * 00406 * Remember, also, that we're using the basename of the file (i.e. 00407 * the file without the format suffix), so it does not already exist 00408 * and we aren't interfering with the recording itself. 00409 */ 00410 if (option_debug > 2) { 00411 ast_log(LOG_DEBUG, "comparing tmpstring %s to filename_base %s\n", tmpstring, chan->monitor->filename_base); 00412 } 00413 if ((fd[0] = open(tmpstring, O_CREAT | O_WRONLY, 0644)) < 0 || 00414 (fd[1] = open(chan->monitor->filename_base, O_CREAT | O_EXCL | O_WRONLY, 0644)) < 0) { 00415 if (fd[0] < 0) { 00416 ast_log(LOG_ERROR, "Unable to compare filenames: %s\n", strerror(errno)); 00417 } else { 00418 if (option_debug > 2) { 00419 ast_log(LOG_DEBUG, "No need to rename monitor filename to itself\n"); 00420 } 00421 } 00422 doexit = 1; 00423 } 00424 00425 /* Cleanup temporary files */ 00426 for (i = 0; i < 2; i++) { 00427 if (fd[i] >= 0) { 00428 while (close(fd[i]) < 0 && errno == EINTR); 00429 } 00430 } 00431 unlink(tmpstring); 00432 /* if previous monitor file existed in a subdirectory, the directory will not be removed */ 00433 unlink(chan->monitor->filename_base); 00434 00435 if (doexit) { 00436 UNLOCK_IF_NEEDED(chan, need_lock); 00437 return 0; 00438 } 00439 00440 ast_copy_string(chan->monitor->filename_base, tmpstring, sizeof(chan->monitor->filename_base)); 00441 chan->monitor->filename_changed = 1; 00442 } else { 00443 ast_log(LOG_WARNING, "Cannot change monitor filename of channel %s to %s, monitoring not started\n", chan->name, fname_base); 00444 } 00445 00446 UNLOCK_IF_NEEDED(chan, need_lock); 00447 00448 return 0; 00449 }
int ast_monitor_pause | ( | struct ast_channel * | chan | ) |
Definition at line 349 of file res_monitor.c.
References AST_MONITOR_PAUSED, and ast_monitor_set_state().
Referenced by do_pause_or_unpause(), and pause_monitor_exec().
00350 { 00351 return ast_monitor_set_state(chan, AST_MONITOR_PAUSED); 00352 }
void ast_monitor_setjoinfiles | ( | struct ast_channel * | chan, | |
int | turnon | |||
) |
Definition at line 652 of file res_monitor.c.
References ast_channel_monitor::joinfiles, and ast_channel::monitor.
Referenced by __agent_start_monitoring(), start_monitor_action(), and start_monitor_exec().
int ast_monitor_start | ( | struct ast_channel * | chan, | |
const char * | format_spec, | |||
const char * | fname_base, | |||
int | need_lock | |||
) |
Definition at line 132 of file res_monitor.c.
References ast_calloc, ast_closestream(), ast_config_AST_MONITOR_DIR, ast_filedelete(), ast_fileexists(), ast_log(), AST_MONITOR_RUNNING, ast_monitor_set_state(), ast_monitor_stop(), ast_mutex_lock(), ast_mutex_unlock(), ast_safe_system(), ast_strdupa, ast_strlen_zero(), ast_writefile(), errno, FILENAME_MAX, free, LOCK_IF_NEEDED, LOG_DEBUG, LOG_WARNING, ast_channel::monitor, monitor, monitorlock, name, ast_channel::name, pbx_builtin_setvar_helper(), strdup, and UNLOCK_IF_NEEDED.
Referenced by __agent_start_monitoring(), start_monitor_action(), and start_monitor_exec().
00134 { 00135 int res = 0; 00136 char tmp[256]; 00137 00138 LOCK_IF_NEEDED(chan, need_lock); 00139 00140 if (!(chan->monitor)) { 00141 struct ast_channel_monitor *monitor; 00142 char *channel_name, *p; 00143 00144 /* Create monitoring directory if needed */ 00145 if (mkdir(ast_config_AST_MONITOR_DIR, 0770) < 0) { 00146 if (errno != EEXIST) { 00147 ast_log(LOG_WARNING, "Unable to create audio monitor directory: %s\n", 00148 strerror(errno)); 00149 } 00150 } 00151 00152 if (!(monitor = ast_calloc(1, sizeof(*monitor)))) { 00153 UNLOCK_IF_NEEDED(chan, need_lock); 00154 return -1; 00155 } 00156 00157 /* Determine file names */ 00158 if (!ast_strlen_zero(fname_base)) { 00159 int directory = strchr(fname_base, '/') ? 1 : 0; 00160 const char *absolute = *fname_base == '/' ? "" : ast_config_AST_MONITOR_DIR; 00161 const char *absolute_suffix = *fname_base == '/' ? "" : "/"; 00162 /* try creating the directory just in case it doesn't exist */ 00163 if (directory) { 00164 char *name = strdup(fname_base); 00165 snprintf(tmp, sizeof(tmp), "mkdir -p \"%s%s%s\"", 00166 absolute, absolute_suffix, dirname(name)); 00167 free(name); 00168 ast_safe_system(tmp); 00169 } 00170 snprintf(monitor->read_filename, FILENAME_MAX, "%s%s%s-in", 00171 absolute, absolute_suffix, fname_base); 00172 snprintf(monitor->write_filename, FILENAME_MAX, "%s%s%s-out", 00173 absolute, absolute_suffix, fname_base); 00174 snprintf(monitor->filename_base, FILENAME_MAX, "%s%s%s", 00175 absolute, absolute_suffix, fname_base); 00176 } else { 00177 ast_mutex_lock(&monitorlock); 00178 snprintf(monitor->read_filename, FILENAME_MAX, "%s/audio-in-%ld", 00179 ast_config_AST_MONITOR_DIR, seq); 00180 snprintf(monitor->write_filename, FILENAME_MAX, "%s/audio-out-%ld", 00181 ast_config_AST_MONITOR_DIR, seq); 00182 seq++; 00183 ast_mutex_unlock(&monitorlock); 00184 00185 channel_name = ast_strdupa(chan->name); 00186 while ((p = strchr(channel_name, '/'))) { 00187 *p = '-'; 00188 } 00189 snprintf(monitor->filename_base, FILENAME_MAX, "%s/%d-%s", 00190 ast_config_AST_MONITOR_DIR, (int)time(NULL), channel_name); 00191 monitor->filename_changed = 1; 00192 } 00193 00194 monitor->stop = ast_monitor_stop; 00195 00196 /* Determine file format */ 00197 if (!ast_strlen_zero(format_spec)) { 00198 monitor->format = strdup(format_spec); 00199 } else { 00200 monitor->format = strdup("wav"); 00201 } 00202 00203 /* open files */ 00204 if (ast_fileexists(monitor->read_filename, NULL, NULL) > 0) { 00205 ast_filedelete(monitor->read_filename, NULL); 00206 } 00207 if (!(monitor->read_stream = ast_writefile(monitor->read_filename, 00208 monitor->format, NULL, 00209 O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) { 00210 ast_log(LOG_WARNING, "Could not create file %s\n", 00211 monitor->read_filename); 00212 free(monitor); 00213 UNLOCK_IF_NEEDED(chan, need_lock); 00214 return -1; 00215 } 00216 if (ast_fileexists(monitor->write_filename, NULL, NULL) > 0) { 00217 ast_filedelete(monitor->write_filename, NULL); 00218 } 00219 if (!(monitor->write_stream = ast_writefile(monitor->write_filename, 00220 monitor->format, NULL, 00221 O_CREAT|O_TRUNC|O_WRONLY, 0, 0644))) { 00222 ast_log(LOG_WARNING, "Could not create file %s\n", 00223 monitor->write_filename); 00224 ast_closestream(monitor->read_stream); 00225 free(monitor); 00226 UNLOCK_IF_NEEDED(chan, need_lock); 00227 return -1; 00228 } 00229 chan->monitor = monitor; 00230 ast_monitor_set_state(chan, AST_MONITOR_RUNNING); 00231 /* so we know this call has been monitored in case we need to bill for it or something */ 00232 pbx_builtin_setvar_helper(chan, "__MONITORED","true"); 00233 } else { 00234 ast_log(LOG_DEBUG,"Cannot start monitoring %s, already monitored\n", 00235 chan->name); 00236 res = -1; 00237 } 00238 00239 UNLOCK_IF_NEEDED(chan, need_lock); 00240 00241 return res; 00242 }
int ast_monitor_stop | ( | struct ast_channel * | chan, | |
int | need_lock | |||
) |
Definition at line 262 of file res_monitor.c.
References ast_closestream(), ast_copy_string(), ast_filedelete(), ast_fileexists(), ast_filerename(), ast_log(), ast_safe_system(), ast_strlen_zero(), ast_channel_monitor::filename_base, ast_channel_monitor::filename_changed, FILENAME_MAX, ast_channel_monitor::format, format, free, get_soxmix_format(), ast_channel_monitor::joinfiles, LOCK_IF_NEEDED, LOG_DEBUG, LOG_WARNING, ast_channel::monitor, pbx_builtin_getvar_helper(), pbx_builtin_setvar_helper(), ast_channel_monitor::read_filename, ast_channel_monitor::read_stream, UNLOCK_IF_NEEDED, ast_channel_monitor::write_filename, and ast_channel_monitor::write_stream.
Referenced by ast_monitor_start(), builtin_automonitor(), stop_monitor_action(), and stop_monitor_exec().
00263 { 00264 int delfiles = 0; 00265 00266 LOCK_IF_NEEDED(chan, need_lock); 00267 00268 if (chan->monitor) { 00269 char filename[ FILENAME_MAX ]; 00270 00271 if (chan->monitor->read_stream) { 00272 ast_closestream(chan->monitor->read_stream); 00273 } 00274 if (chan->monitor->write_stream) { 00275 ast_closestream(chan->monitor->write_stream); 00276 } 00277 00278 if (chan->monitor->filename_changed && !ast_strlen_zero(chan->monitor->filename_base)) { 00279 if (ast_fileexists(chan->monitor->read_filename,NULL,NULL) > 0) { 00280 snprintf(filename, FILENAME_MAX, "%s-in", chan->monitor->filename_base); 00281 if (ast_fileexists(filename, NULL, NULL) > 0) { 00282 ast_filedelete(filename, NULL); 00283 } 00284 ast_filerename(chan->monitor->read_filename, filename, chan->monitor->format); 00285 } else { 00286 ast_log(LOG_WARNING, "File %s not found\n", chan->monitor->read_filename); 00287 } 00288 00289 if (ast_fileexists(chan->monitor->write_filename,NULL,NULL) > 0) { 00290 snprintf(filename, FILENAME_MAX, "%s-out", chan->monitor->filename_base); 00291 if (ast_fileexists(filename, NULL, NULL) > 0) { 00292 ast_filedelete(filename, NULL); 00293 } 00294 ast_filerename(chan->monitor->write_filename, filename, chan->monitor->format); 00295 } else { 00296 ast_log(LOG_WARNING, "File %s not found\n", chan->monitor->write_filename); 00297 } 00298 } 00299 00300 if (chan->monitor->joinfiles && !ast_strlen_zero(chan->monitor->filename_base)) { 00301 char tmp[1024]; 00302 char tmp2[1024]; 00303 const char *format = !strcasecmp(chan->monitor->format,"wav49") ? "WAV" : chan->monitor->format; 00304 char *fname_base = chan->monitor->filename_base; 00305 const char *execute, *execute_args; 00306 /* at this point, fname_base really is the full path */ 00307 00308 /* Set the execute application */ 00309 execute = pbx_builtin_getvar_helper(chan, "MONITOR_EXEC"); 00310 if (ast_strlen_zero(execute)) { 00311 #ifdef HAVE_SOXMIX 00312 execute = "nice -n 19 soxmix"; 00313 #else 00314 execute = "nice -n 19 sox -m"; 00315 #endif 00316 format = get_soxmix_format(format); 00317 delfiles = 1; 00318 } 00319 execute_args = pbx_builtin_getvar_helper(chan, "MONITOR_EXEC_ARGS"); 00320 if (ast_strlen_zero(execute_args)) { 00321 execute_args = ""; 00322 } 00323 00324 snprintf(tmp, sizeof(tmp), "%s \"%s-in.%s\" \"%s-out.%s\" \"%s.%s\" %s &", 00325 execute, fname_base, format, fname_base, format, fname_base, format,execute_args); 00326 if (delfiles) { 00327 snprintf(tmp2,sizeof(tmp2), "( %s& rm -f \"%s-\"* ) &",tmp, fname_base); /* remove legs when done mixing */ 00328 ast_copy_string(tmp, tmp2, sizeof(tmp)); 00329 } 00330 ast_log(LOG_DEBUG,"monitor executing %s\n",tmp); 00331 if (ast_safe_system(tmp) == -1) 00332 ast_log(LOG_WARNING, "Execute of %s failed.\n",tmp); 00333 } 00334 00335 free(chan->monitor->format); 00336 free(chan->monitor); 00337 chan->monitor = NULL; 00338 pbx_builtin_setvar_helper(chan, "MONITORED", NULL); 00339 } 00340 pbx_builtin_setvar_helper(chan, "AUTO_MONITOR", NULL); 00341 00342 UNLOCK_IF_NEEDED(chan, need_lock); 00343 00344 return 0; 00345 }
int ast_monitor_unpause | ( | struct ast_channel * | chan | ) |
Definition at line 355 of file res_monitor.c.
References AST_MONITOR_RUNNING, and ast_monitor_set_state().
Referenced by do_pause_or_unpause(), and unpause_monitor_exec().
00356 { 00357 return ast_monitor_set_state(chan, AST_MONITOR_RUNNING); 00358 }