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logger.c File Reference

#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <asterisk/lock.h>
#include <asterisk/options.h>
#include <asterisk/channel.h>
#include <asterisk/config.h>
#include <asterisk/term.h>
#include <asterisk/cli.h>
#include <asterisk/utils.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/stat.h>
#include "asterisk.h"
#include "astconf.h"
#include <syslog.h>
#include <asterisk/logger.h>

Go to the source code of this file.

Data Structures

struct  msglist
struct  logchannel
struct  verb

Defines

#define SYSLOG_NAMES
#define SYSLOG_NLEVELS   6
#define MAX_MSG_QUEUE   200

Functions

 AST_MUTEX_DEFINE_STATIC (msglist_lock)
 AST_MUTEX_DEFINE_STATIC (loglock)
 AST_MUTEX_DEFINE_STATIC (qloglock)
void ast_queue_log (const char *queuename, const char *callid, const char *agent, const char *event, const char *fmt,...)
int reload_logger (int rotate)
int init_logger (void)
void close_logger (void)
void ast_log (int level, const char *file, int line, const char *function, const char *fmt,...)
void ast_verbose (const char *fmt,...)
int ast_verbose_dmesg (void(*v)(const char *string, int opos, int replacelast, int complete))
int ast_register_verbose (void(*v)(const char *string, int opos, int replacelast, int complete))
int ast_unregister_verbose (void(*v)(const char *string, int opos, int replacelast, int complete))


Define Documentation

#define MAX_MSG_QUEUE   200
 

Definition at line 49 of file logger.c.

Referenced by ast_verbose().

#define SYSLOG_NAMES
 

Definition at line 33 of file logger.c.

#define SYSLOG_NLEVELS   6
 

Definition at line 45 of file logger.c.


Function Documentation

void ast_log int  level,
const char *  file,
int  line,
const char *  function,
const char *  fmt,
  ...
 

Definition at line 497 of file logger.c.

References __LOG_DEBUG, __LOG_EVENT, __LOG_VERBOSE, ast_console_puts(), ast_log(), ast_mutex_lock, ast_mutex_unlock, ast_verbose(), COLOR_BRWHITE, LOG_EVENT, option_debug, option_verbose, reload_logger(), and term_color().

00498 { 00499 struct logchannel *chan; 00500 char buf[BUFSIZ]; 00501 time_t t; 00502 struct tm tm; 00503 char date[256]; 00504 00505 va_list ap; 00506 00507 if (!option_verbose && !option_debug && (level == __LOG_DEBUG)) { 00508 return; 00509 } 00510 00511 /* begin critical section */ 00512 ast_mutex_lock(&loglock); 00513 00514 time(&t); 00515 localtime_r(&t, &tm); 00516 strftime(date, sizeof(date), dateformat, &tm); 00517 00518 if (level == __LOG_EVENT) { 00519 va_start(ap, fmt); 00520 00521 fprintf(eventlog, "%s asterisk[%d]: ", date, getpid()); 00522 vfprintf(eventlog, fmt, ap); 00523 fflush(eventlog); 00524 00525 va_end(ap); 00526 ast_mutex_unlock(&loglock); 00527 return; 00528 } 00529 00530 if (logchannels) { 00531 chan = logchannels; 00532 while(chan) { 00533 if (chan->syslog && (chan->logmask & (1 << level))) { 00534 va_start(ap, fmt); 00535 ast_log_vsyslog(level, file, line, function, fmt, ap); 00536 va_end(ap); 00537 } else if ((chan->logmask & (1 << level)) && (chan->console)) { 00538 char linestr[128]; 00539 char tmp1[80], tmp2[80], tmp3[80], tmp4[80]; 00540 00541 if (level != __LOG_VERBOSE) { 00542 sprintf(linestr, "%d", line); 00543 snprintf(buf, sizeof(buf), "%s %s[%ld]: %s:%s %s: ", 00544 date, 00545 term_color(tmp1, levels[level], colors[level], 0, sizeof(tmp1)), 00546 (long)pthread_self(), 00547 term_color(tmp2, file, COLOR_BRWHITE, 0, sizeof(tmp2)), 00548 term_color(tmp3, linestr, COLOR_BRWHITE, 0, sizeof(tmp3)), 00549 term_color(tmp4, function, COLOR_BRWHITE, 0, sizeof(tmp4))); 00550 00551 ast_console_puts(buf); 00552 va_start(ap, fmt); 00553 vsnprintf(buf, sizeof(buf), fmt, ap); 00554 va_end(ap); 00555 ast_console_puts(buf); 00556 } 00557 } else if ((chan->logmask & (1 << level)) && (chan->fileptr)) { 00558 snprintf(buf, sizeof(buf), "%s %s[%ld]: ", date, 00559 levels[level], (long)pthread_self()); 00560 fprintf(chan->fileptr, buf); 00561 va_start(ap, fmt); 00562 vsnprintf(buf, sizeof(buf), fmt, ap); 00563 va_end(ap); 00564 fputs(buf, chan->fileptr); 00565 fflush(chan->fileptr); 00566 } 00567 chan = chan->next; 00568 } 00569 } else { 00570 /* 00571 * we don't have the logger chain configured yet, 00572 * so just log to stdout 00573 */ 00574 if (level != __LOG_VERBOSE) { 00575 va_start(ap, fmt); 00576 vsnprintf(buf, sizeof(buf), fmt, ap); 00577 va_end(ap); 00578 fputs(buf, stdout); 00579 } 00580 } 00581 00582 ast_mutex_unlock(&loglock); 00583 /* end critical section */ 00584 if (pending_logger_reload) { 00585 reload_logger(1); 00586 ast_log(LOG_EVENT,"Rotated Logs Per SIGXFSZ\n"); 00587 if (option_verbose) 00588 ast_verbose("Rotated Logs Per SIGXFSZ\n"); 00589 } 00590 }

AST_MUTEX_DEFINE_STATIC qloglock   ) 
 

AST_MUTEX_DEFINE_STATIC loglock   ) 
 

AST_MUTEX_DEFINE_STATIC msglist_lock   ) 
 

void ast_queue_log const char *  queuename,
const char *  callid,
const char *  agent,
const char *  event,
const char *  fmt,
  ...
 

Definition at line 255 of file logger.c.

References ast_mutex_lock, and ast_mutex_unlock.

00256 { 00257 va_list ap; 00258 ast_mutex_lock(&qloglock); 00259 if (qlog) { 00260 va_start(ap, fmt); 00261 fprintf(qlog, "%ld|%s|%s|%s|%s|", (long)time(NULL), callid, queuename, agent, event); 00262 vfprintf(qlog, fmt, ap); 00263 fprintf(qlog, "\n"); 00264 va_end(ap); 00265 fflush(qlog); 00266 } 00267 ast_mutex_unlock(&qloglock); 00268 }

int ast_register_verbose void(*  v)(const char *string, int opos, int replacelast, int complete)  ) 
 

Definition at line 670 of file logger.c.

References ast_mutex_lock, ast_mutex_unlock, and malloc.

Referenced by main().

00671 { 00672 struct msglist *m; 00673 struct verb *tmp; 00674 /* XXX Should be more flexible here, taking > 1 verboser XXX */ 00675 if ((tmp = malloc(sizeof (struct verb)))) { 00676 tmp->verboser = v; 00677 ast_mutex_lock(&msglist_lock); 00678 tmp->next = verboser; 00679 verboser = tmp; 00680 m = list; 00681 while(m) { 00682 /* Send all the existing entries that we have queued (i.e. they're likely to have missed) */ 00683 v(m->msg, 0, 0, 1); 00684 m = m->next; 00685 } 00686 ast_mutex_unlock(&msglist_lock); 00687 return 0; 00688 } 00689 return -1; 00690 }

int ast_unregister_verbose void(*  v)(const char *string, int opos, int replacelast, int complete)  ) 
 

Definition at line 692 of file logger.c.

References ast_mutex_lock, ast_mutex_unlock, and free.

00693 { 00694 int res = -1; 00695 struct verb *tmp, *tmpl=NULL; 00696 ast_mutex_lock(&msglist_lock); 00697 tmp = verboser; 00698 while(tmp) { 00699 if (tmp->verboser == v) { 00700 if (tmpl) 00701 tmpl->next = tmp->next; 00702 else 00703 verboser = tmp->next; 00704 free(tmp); 00705 break; 00706 } 00707 tmpl = tmp; 00708 tmp = tmp->next; 00709 } 00710 if (tmp) 00711 res = 0; 00712 ast_mutex_unlock(&msglist_lock); 00713 return res; 00714 }

void ast_verbose const char *  fmt,
  ...
 

Definition at line 592 of file logger.c.

References ast_log(), ast_mutex_lock, ast_mutex_unlock, free, LOG_ERROR, LOG_VERBOSE, malloc, MAX_MSG_QUEUE, and strdup.

00593 { 00594 static char stuff[4096]; 00595 static int pos = 0, opos; 00596 static int replacelast = 0, complete; 00597 struct msglist *m; 00598 struct verb *v; 00599 va_list ap; 00600 va_start(ap, fmt); 00601 ast_mutex_lock(&msglist_lock); 00602 vsnprintf(stuff + pos, sizeof(stuff) - pos, fmt, ap); 00603 opos = pos; 00604 pos = strlen(stuff); 00605 if (fmt[strlen(fmt)-1] == '\n') 00606 complete = 1; 00607 else 00608 complete=0; 00609 if (complete) { 00610 if (msgcnt < MAX_MSG_QUEUE) { 00611 /* Allocate new structure */ 00612 m = malloc(sizeof(struct msglist)); 00613 msgcnt++; 00614 } else { 00615 /* Recycle the oldest entry */ 00616 m = list; 00617 list = list->next; 00618 free(m->msg); 00619 } 00620 if (m) { 00621 m->msg = strdup(stuff); 00622 if (m->msg) { 00623 if (last) 00624 last->next = m; 00625 else 00626 list = m; 00627 m->next = NULL; 00628 last = m; 00629 } else { 00630 msgcnt--; 00631 ast_log(LOG_ERROR, "Out of memory\n"); 00632 free(m); 00633 } 00634 } 00635 } 00636 if (verboser) { 00637 v = verboser; 00638 while(v) { 00639 v->verboser(stuff, opos, replacelast, complete); 00640 v = v->next; 00641 } 00642 } /* else 00643 fprintf(stdout, stuff + opos); */ 00644 00645 ast_log(LOG_VERBOSE, stuff); 00646 00647 if (fmt[strlen(fmt)-1] != '\n') 00648 replacelast = 1; 00649 else 00650 replacelast = pos = 0; 00651 va_end(ap); 00652 00653 ast_mutex_unlock(&msglist_lock); 00654 }

int ast_verbose_dmesg void(*  v)(const char *string, int opos, int replacelast, int complete)  ) 
 

Definition at line 656 of file logger.c.

References ast_mutex_lock, and ast_mutex_unlock.

00657 { 00658 struct msglist *m; 00659 m = list; 00660 ast_mutex_lock(&msglist_lock); 00661 while(m) { 00662 /* Send all the existing entries that we have queued (i.e. they're likely to have missed) */ 00663 v(m->msg, 0, 0, 1); 00664 m = m->next; 00665 } 00666 ast_mutex_unlock(&msglist_lock); 00667 return 0; 00668 }

void close_logger void   ) 
 

Definition at line 454 of file logger.c.

References ast_mutex_lock, ast_mutex_unlock, and free.

00455 { 00456 struct msglist *m, *tmp; 00457 00458 m = list; 00459 ast_mutex_lock(&msglist_lock); 00460 while(m) { 00461 if (m->msg) { 00462 free(m->msg); 00463 } 00464 tmp = m->next; 00465 free(m); 00466 m = tmp; 00467 } 00468 list = last = NULL; 00469 msgcnt = 0; 00470 ast_mutex_unlock(&msglist_lock); 00471 return; 00472 }

int init_logger void   ) 
 

Definition at line 422 of file logger.c.

References ast_cli_register(), ast_config_AST_LOG_DIR, ast_log(), ast_verbose(), EVENTLOG, LOG_ERROR, LOG_EVENT, and option_verbose.

Referenced by main().

00423 { 00424 char tmp[256]; 00425 00426 /* auto rotate if sig SIGXFSZ comes a-knockin */ 00427 (void) signal(SIGXFSZ,(void *) handle_SIGXFSZ); 00428 00429 /* register the relaod logger cli command */ 00430 ast_cli_register(&reload_logger_cli); 00431 ast_cli_register(&rotate_logger_cli); 00432 00433 /* initialize queue logger */ 00434 queue_log_init(); 00435 00436 /* create the eventlog */ 00437 mkdir((char *)ast_config_AST_LOG_DIR, 0755); 00438 snprintf(tmp, sizeof(tmp), "%s/%s", (char *)ast_config_AST_LOG_DIR, EVENTLOG); 00439 eventlog = fopen((char *)tmp, "a"); 00440 if (eventlog) { 00441 init_logger_chain(); 00442 ast_log(LOG_EVENT, "Started Asterisk Event Logger\n"); 00443 if (option_verbose) 00444 ast_verbose("Asterisk Event Logger Started %s\n",(char *)tmp); 00445 return 0; 00446 } else 00447 ast_log(LOG_ERROR, "Unable to create event log: %s\n", strerror(errno)); 00448 00449 /* create log channels */ 00450 init_logger_chain(); 00451 return -1; 00452 }

int reload_logger int  rotate  ) 
 

Definition at line 289 of file logger.c.

References ast_config_AST_LOG_DIR, AST_CONFIG_MAX_PATH, ast_log(), ast_mutex_lock, ast_mutex_unlock, ast_verbose(), EVENTLOG, LOG_ERROR, LOG_EVENT, and option_verbose.

Referenced by ast_log(), and main().

00290 { 00291 char old[AST_CONFIG_MAX_PATH] = ""; 00292 char new[AST_CONFIG_MAX_PATH]; 00293 struct logchannel *f; 00294 FILE *myf; 00295 00296 int x; 00297 ast_mutex_lock(&loglock); 00298 if (eventlog) 00299 fclose(eventlog); 00300 else 00301 rotate = 0; 00302 eventlog = NULL; 00303 00304 00305 00306 mkdir((char *)ast_config_AST_LOG_DIR, 0755); 00307 snprintf(old, sizeof(old), "%s/%s", (char *)ast_config_AST_LOG_DIR, EVENTLOG); 00308 00309 if(rotate) { 00310 for(x=0;;x++) { 00311 snprintf(new, sizeof(new), "%s/%s.%d", (char *)ast_config_AST_LOG_DIR, EVENTLOG,x); 00312 myf = fopen((char *)new, "r"); 00313 if(myf) 00314 fclose(myf); 00315 else 00316 break; 00317 } 00318 00319 /* do it */ 00320 if (rename(old,new)) 00321 fprintf(stderr, "Unable to rename file '%s' to '%s'\n", old, new); 00322 } 00323 00324 eventlog = fopen(old, "a"); 00325 00326 f = logchannels; 00327 while(f) { 00328 if (f->fileptr && (f->fileptr != stdout) && (f->fileptr != stderr)) { 00329 fclose(f->fileptr); 00330 f->fileptr = NULL; 00331 if(rotate) { 00332 strncpy(old, f->filename, sizeof(old) - 1); 00333 00334 for(x=0;;x++) { 00335 snprintf(new, sizeof(new), "%s.%d", f->filename, x); 00336 myf = fopen((char *)new, "r"); 00337 if (myf) { 00338 fclose(myf); 00339 } else { 00340 break; 00341 } 00342 } 00343 00344 /* do it */ 00345 if (rename(old,new)) 00346 fprintf(stderr, "Unable to rename file '%s' to '%s'\n", old, new); 00347 } 00348 } 00349 f = f->next; 00350 } 00351 00352 ast_mutex_unlock(&loglock); 00353 00354 queue_log_init(); 00355 00356 if (eventlog) { 00357 init_logger_chain(); 00358 ast_log(LOG_EVENT, "Restarted Asterisk Event Logger\n"); 00359 if (option_verbose) 00360 ast_verbose("Asterisk Event Logger restarted\n"); 00361 return 0; 00362 } else 00363 ast_log(LOG_ERROR, "Unable to create event log: %s\n", strerror(errno)); 00364 init_logger_chain(); 00365 pending_logger_reload = 0; 00366 return -1; 00367 }


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