LCOV - code coverage report
Current view: directory - ipc/chromium/src/third_party/libevent - log.c (source / functions) Found Hit Coverage
Test: app.info Lines: 59 0 0.0 %
Date: 2012-06-02 Functions: 9 0 0.0 %

       1                 : /*      $OpenBSD: err.c,v 1.2 2002/06/25 15:50:15 mickey Exp $  */
       2                 : 
       3                 : /*
       4                 :  * log.c
       5                 :  *
       6                 :  * Based on err.c, which was adapted from OpenBSD libc *err* *warn* code.
       7                 :  *
       8                 :  * Copyright (c) 2005 Nick Mathewson <nickm@freehaven.net>
       9                 :  *
      10                 :  * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
      11                 :  *
      12                 :  * Copyright (c) 1993
      13                 :  *      The Regents of the University of California.  All rights reserved.
      14                 :  *
      15                 :  * Redistribution and use in source and binary forms, with or without
      16                 :  * modification, are permitted provided that the following conditions
      17                 :  * are met:
      18                 :  * 1. Redistributions of source code must retain the above copyright
      19                 :  *    notice, this list of conditions and the following disclaimer.
      20                 :  * 2. Redistributions in binary form must reproduce the above copyright
      21                 :  *    notice, this list of conditions and the following disclaimer in the
      22                 :  *    documentation and/or other materials provided with the distribution.
      23                 :  * 3. Neither the name of the University nor the names of its contributors
      24                 :  *    may be used to endorse or promote products derived from this software
      25                 :  *    without specific prior written permission.
      26                 :  *
      27                 :  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
      28                 :  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      29                 :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
      30                 :  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
      31                 :  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
      32                 :  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
      33                 :  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      34                 :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
      35                 :  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
      36                 :  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
      37                 :  * SUCH DAMAGE.
      38                 :  */
      39                 : 
      40                 : #ifdef HAVE_CONFIG_H
      41                 : #include "config.h"
      42                 : #endif
      43                 : 
      44                 : #ifdef WIN32
      45                 : #define WIN32_LEAN_AND_MEAN
      46                 : #include <windows.h>
      47                 : #undef WIN32_LEAN_AND_MEAN
      48                 : #endif
      49                 : #include <sys/types.h>
      50                 : #ifdef HAVE_SYS_TIME_H
      51                 : #include <sys/time.h>
      52                 : #else
      53                 : #include <sys/_time.h>
      54                 : #endif
      55                 : #include <stdio.h>
      56                 : #include <stdlib.h>
      57                 : #include <stdarg.h>
      58                 : #include <string.h>
      59                 : #include <errno.h>
      60                 : #include "event.h"
      61                 : 
      62                 : #include "log.h"
      63                 : #include "evutil.h"
      64                 : 
      65                 : static void _warn_helper(int severity, int log_errno, const char *fmt,
      66                 :                          va_list ap);
      67                 : static void event_log(int severity, const char *msg);
      68                 : 
      69                 : void
      70               0 : event_err(int eval, const char *fmt, ...)
      71                 : {
      72                 :         va_list ap;
      73                 :         
      74               0 :         va_start(ap, fmt);
      75               0 :         _warn_helper(_EVENT_LOG_ERR, errno, fmt, ap);
      76               0 :         va_end(ap);
      77               0 :         exit(eval);
      78                 : }
      79                 : 
      80                 : void
      81               0 : event_warn(const char *fmt, ...)
      82                 : {
      83                 :         va_list ap;
      84                 :         
      85               0 :         va_start(ap, fmt);
      86               0 :         _warn_helper(_EVENT_LOG_WARN, errno, fmt, ap);
      87               0 :         va_end(ap);
      88               0 : }
      89                 : 
      90                 : void
      91               0 : event_errx(int eval, const char *fmt, ...)
      92                 : {
      93                 :         va_list ap;
      94                 :         
      95               0 :         va_start(ap, fmt);
      96               0 :         _warn_helper(_EVENT_LOG_ERR, -1, fmt, ap);
      97               0 :         va_end(ap);
      98               0 :         exit(eval);
      99                 : }
     100                 : 
     101                 : void
     102               0 : event_warnx(const char *fmt, ...)
     103                 : {
     104                 :         va_list ap;
     105                 :         
     106               0 :         va_start(ap, fmt);
     107               0 :         _warn_helper(_EVENT_LOG_WARN, -1, fmt, ap);
     108               0 :         va_end(ap);
     109               0 : }
     110                 : 
     111                 : void
     112               0 : event_msgx(const char *fmt, ...)
     113                 : {
     114                 :         va_list ap;
     115                 :         
     116               0 :         va_start(ap, fmt);
     117               0 :         _warn_helper(_EVENT_LOG_MSG, -1, fmt, ap);
     118               0 :         va_end(ap);
     119               0 : }
     120                 : 
     121                 : void
     122               0 : _event_debugx(const char *fmt, ...)
     123                 : {
     124                 :         va_list ap;
     125                 :         
     126               0 :         va_start(ap, fmt);
     127               0 :         _warn_helper(_EVENT_LOG_DEBUG, -1, fmt, ap);
     128               0 :         va_end(ap);
     129               0 : }
     130                 : 
     131                 : static void
     132               0 : _warn_helper(int severity, int log_errno, const char *fmt, va_list ap)
     133                 : {
     134                 :         char buf[1024];
     135                 :         size_t len;
     136                 : 
     137               0 :         if (fmt != NULL)
     138               0 :                 evutil_vsnprintf(buf, sizeof(buf), fmt, ap);
     139                 :         else
     140               0 :                 buf[0] = '\0';
     141                 : 
     142               0 :         if (log_errno >= 0) {
     143               0 :                 len = strlen(buf);
     144               0 :                 if (len < sizeof(buf) - 3) {
     145               0 :                         evutil_snprintf(buf + len, sizeof(buf) - len, ": %s",
     146                 :                             strerror(log_errno));
     147                 :                 }
     148                 :         }
     149                 : 
     150               0 :         event_log(severity, buf);
     151               0 : }
     152                 : 
     153                 : static event_log_cb log_fn = NULL;
     154                 : 
     155                 : void
     156               0 : event_set_log_callback(event_log_cb cb)
     157                 : {
     158               0 :         log_fn = cb;
     159               0 : }
     160                 : 
     161                 : static void
     162               0 : event_log(int severity, const char *msg)
     163                 : {
     164               0 :         if (log_fn)
     165               0 :                 log_fn(severity, msg);
     166                 :         else {
     167                 :                 const char *severity_str;
     168               0 :                 switch (severity) {
     169                 :                 case _EVENT_LOG_DEBUG:
     170               0 :                         severity_str = "debug";
     171               0 :                         break;
     172                 :                 case _EVENT_LOG_MSG:
     173               0 :                         severity_str = "msg";
     174               0 :                         break;
     175                 :                 case _EVENT_LOG_WARN:
     176               0 :                         severity_str = "warn";
     177               0 :                         break;
     178                 :                 case _EVENT_LOG_ERR:
     179               0 :                         severity_str = "err";
     180               0 :                         break;
     181                 :                 default:
     182               0 :                         severity_str = "???";
     183               0 :                         break;
     184                 :                 }
     185               0 :                 (void)fprintf(stderr, "[%s] %s\n", severity_str, msg);
     186                 :         }
     187               0 : }

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