2 * collectd - src/logfile.c
3 * Copyright (C) 2007 Sebastian Harl
4 * Copyright (C) 2007,2008 Florian Forster
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 * Sebastian Harl <sh at tokkee.org>
26 * Florian Forster <octo at collectd.org>
35 #define DEFAULT_LOGFILE LOCALSTATEDIR"/log/collectd.log"
38 static int log_level = LOG_DEBUG;
40 static int log_level = LOG_INFO;
41 #endif /* COLLECT_DEBUG */
43 static pthread_mutex_t file_lock = PTHREAD_MUTEX_INITIALIZER;
45 static char *log_file = NULL;
46 static int print_timestamp = 1;
47 static int print_severity = 0;
49 static const char *config_keys[] =
56 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
58 static int logfile_config (const char *key, const char *value)
60 if (0 == strcasecmp (key, "LogLevel")) {
61 log_level = parse_log_severity(value);
64 ERROR ("logfile: invalid loglevel [%s] defaulting to 'info'", value);
68 else if (0 == strcasecmp (key, "File")) {
70 log_file = strdup (value);
72 else if (0 == strcasecmp (key, "Timestamp")) {
77 } else if (0 == strcasecmp(key, "PrintSeverity")) {
87 } /* int logfile_config (const char *, const char *) */
89 static void logfile_print (const char *msg, int severity,
90 cdtime_t timestamp_time)
94 struct tm timestamp_tm;
95 char timestamp_str[64];
96 char level_str[16] = "";
103 snprintf(level_str, sizeof (level_str), "[error] ");
106 snprintf(level_str, sizeof (level_str), "[warning] ");
109 snprintf(level_str, sizeof (level_str), "[notice] ");
112 snprintf(level_str, sizeof (level_str), "[info] ");
115 snprintf(level_str, sizeof (level_str), "[debug] ");
124 time_t tt = CDTIME_T_TO_TIME_T (timestamp_time);
125 localtime_r (&tt, ×tamp_tm);
127 strftime (timestamp_str, sizeof (timestamp_str), "%Y-%m-%d %H:%M:%S",
129 timestamp_str[sizeof (timestamp_str) - 1] = '\0';
132 pthread_mutex_lock (&file_lock);
134 if (log_file == NULL)
136 fh = fopen (DEFAULT_LOGFILE, "a");
139 else if (strcasecmp (log_file, "stderr") == 0)
141 else if (strcasecmp (log_file, "stdout") == 0)
145 fh = fopen (log_file, "a");
152 fprintf (stderr, "logfile plugin: fopen (%s) failed: %s\n",
153 (log_file == NULL) ? DEFAULT_LOGFILE : log_file,
154 sstrerror (errno, errbuf, sizeof (errbuf)));
159 fprintf (fh, "[%s] %s%s\n", timestamp_str, level_str, msg);
161 fprintf (fh, "%s%s\n", level_str, msg);
170 pthread_mutex_unlock (&file_lock);
173 } /* void logfile_print */
175 static void logfile_log (int severity, const char *msg,
176 user_data_t __attribute__((unused)) *user_data)
178 if (severity > log_level)
181 logfile_print (msg, severity, cdtime ());
182 } /* void logfile_log (int, const char *) */
184 static int logfile_notification (const notification_t *n,
185 user_data_t __attribute__((unused)) *user_data)
189 int buf_len = sizeof (buf);
192 status = ssnprintf (buf_ptr, buf_len, "Notification: severity = %s",
193 (n->severity == NOTIF_FAILURE) ? "FAILURE"
194 : ((n->severity == NOTIF_WARNING) ? "WARNING"
195 : ((n->severity == NOTIF_OKAY) ? "OKAY" : "UNKNOWN")));
202 #define APPEND(bufptr, buflen, key, value) \
203 if ((buflen > 0) && (strlen (value) > 0)) { \
204 status = ssnprintf (bufptr, buflen, ", %s = %s", key, value); \
210 APPEND (buf_ptr, buf_len, "host", n->host);
211 APPEND (buf_ptr, buf_len, "plugin", n->plugin);
212 APPEND (buf_ptr, buf_len, "plugin_instance", n->plugin_instance);
213 APPEND (buf_ptr, buf_len, "type", n->type);
214 APPEND (buf_ptr, buf_len, "type_instance", n->type_instance);
215 APPEND (buf_ptr, buf_len, "message", n->message);
217 buf[sizeof (buf) - 1] = '\0';
219 logfile_print (buf, LOG_INFO,
220 (n->time != 0) ? n->time : cdtime ());
223 } /* int logfile_notification */
225 void module_register (void)
227 plugin_register_config ("logfile", logfile_config,
228 config_keys, config_keys_num);
229 plugin_register_log ("logfile", logfile_log, /* user_data = */ NULL);
230 plugin_register_notification ("logfile", logfile_notification,
231 /* user_data = */ NULL);
232 } /* void module_register (void) */
234 /* vim: set sw=4 ts=4 tw=78 noexpandtab : */