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| 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/_libevent_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 event_err(int eval, const char *fmt, ...) | |
| 71 { | |
| 72 va_list ap; | |
| 73 | |
| 74 va_start(ap, fmt); | |
| 75 _warn_helper(_EVENT_LOG_ERR, errno, fmt, ap); | |
| 76 va_end(ap); | |
| 77 exit(eval); | |
| 78 } | |
| 79 | |
| 80 void | |
| 81 event_warn(const char *fmt, ...) | |
| 82 { | |
| 83 va_list ap; | |
| 84 | |
| 85 va_start(ap, fmt); | |
| 86 _warn_helper(_EVENT_LOG_WARN, errno, fmt, ap); | |
| 87 va_end(ap); | |
| 88 } | |
| 89 | |
| 90 void | |
| 91 event_errx(int eval, const char *fmt, ...) | |
| 92 { | |
| 93 va_list ap; | |
| 94 | |
| 95 va_start(ap, fmt); | |
| 96 _warn_helper(_EVENT_LOG_ERR, -1, fmt, ap); | |
| 97 va_end(ap); | |
| 98 exit(eval); | |
| 99 } | |
| 100 | |
| 101 void | |
| 102 event_warnx(const char *fmt, ...) | |
| 103 { | |
| 104 va_list ap; | |
| 105 | |
| 106 va_start(ap, fmt); | |
| 107 _warn_helper(_EVENT_LOG_WARN, -1, fmt, ap); | |
| 108 va_end(ap); | |
| 109 } | |
| 110 | |
| 111 void | |
| 112 event_msgx(const char *fmt, ...) | |
| 113 { | |
| 114 va_list ap; | |
| 115 | |
| 116 va_start(ap, fmt); | |
| 117 _warn_helper(_EVENT_LOG_MSG, -1, fmt, ap); | |
| 118 va_end(ap); | |
| 119 } | |
| 120 | |
| 121 void | |
| 122 _event_debugx(const char *fmt, ...) | |
| 123 { | |
| 124 va_list ap; | |
| 125 | |
| 126 va_start(ap, fmt); | |
| 127 _warn_helper(_EVENT_LOG_DEBUG, -1, fmt, ap); | |
| 128 va_end(ap); | |
| 129 } | |
| 130 | |
| 131 static void | |
| 132 _warn_helper(int severity, int log_errno, const char *fmt, va_list ap) | |
| 133 { | |
| 134 char buf[1024]; | |
| 135 size_t len; | |
| 136 | |
| 137 if (fmt != NULL) | |
| 138 evutil_vsnprintf(buf, sizeof(buf), fmt, ap); | |
| 139 else | |
| 140 buf[0] = '\0'; | |
| 141 | |
| 142 if (log_errno >= 0) { | |
| 143 len = strlen(buf); | |
| 144 if (len < sizeof(buf) - 3) { | |
| 145 evutil_snprintf(buf + len, sizeof(buf) - len, ": %s", | |
| 146 strerror(log_errno)); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 event_log(severity, buf); | |
| 151 } | |
| 152 | |
| 153 static event_log_cb log_fn = NULL; | |
| 154 | |
| 155 void | |
| 156 event_set_log_callback(event_log_cb cb) | |
| 157 { | |
| 158 log_fn = cb; | |
| 159 } | |
| 160 | |
| 161 static void | |
| 162 event_log(int severity, const char *msg) | |
| 163 { | |
| 164 if (log_fn) | |
| 165 log_fn(severity, msg); | |
| 166 else { | |
| 167 const char *severity_str; | |
| 168 switch (severity) { | |
| 169 case _EVENT_LOG_DEBUG: | |
| 170 severity_str = "debug"; | |
| 171 break; | |
| 172 case _EVENT_LOG_MSG: | |
| 173 severity_str = "msg"; | |
| 174 break; | |
| 175 case _EVENT_LOG_WARN: | |
| 176 severity_str = "warn"; | |
| 177 break; | |
| 178 case _EVENT_LOG_ERR: | |
| 179 severity_str = "err"; | |
| 180 break; | |
| 181 default: | |
| 182 severity_str = "???"; | |
| 183 break; | |
| 184 } | |
| 185 (void)fprintf(stderr, "[%s] %s\n", severity_str, msg); | |
| 186 } | |
| 187 } | |
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Chromium Code Reviews
Issue 1531573008:
move libevent into base (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master