1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/* eurephia_log.c -- eurephia logging
*
* GPLv2 only - Copyright (C) 2008
* David Sommerseth <dazo@users.sourceforge.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2
* of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/**
* @file eurephia_log.c
* @author David Sommerseth <dazo@users.sourceforge.net>
* @date 2008-08-06
*
* @brief Function for unified logging
*
*/
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include <pthread.h>
#include <eurephia_context.h>
#include "eurephia_log.h"
/**
* Mapping table for mapping log types (defined in eurephia_log.h)
* to string values
*/
const char *erp_logtypes[] = {
"\0",
"-- INFO -- \0", /**< LOG_INFO */
"-- DEBUG -- \0", /**< LOG_DEBUG */
"** WARNING ** \0", /**< LOG_WARNING */
"** ERROR ** \0", /**< LOG_ERROR */
"** CRITICAL ** \0", /**< LOG_CRITICAL */
"** - FATAL - ** \0", /**< LOG_FATAL */
"** * PANIC * ** \0" /**< LOG_PANIC */
};
/**
* POSIX Mutex to avoid simultaneously logging activity from
* several threads at the same time
*/
pthread_mutex_t log_mutex = PTHREAD_MUTEX_INITIALIZER;
/**
* Simple log function which writes log data to the log file available in the eurephiaCTX
*
* @param ctx eurephiaCTX
* @param logdst Log destination, can be LOG_INFO, LOG_DEBUG, LOG_WARNING, LOG_ERROR,
* LOG_CRITICAL, LOG_FATAL or LOG_PANIC
* @param loglvl Log level of the message. If the eurephiaCTX has a lower log level setup
* than what this parameter is set to, the message will not be logged.
* @param fmt Contents of the log message (stdarg)
*/
void eurephia_log(eurephiaCTX *ctx, int logdst, int loglvl, const char *fmt, ... ) {
// Only log if we have an open log file and which has high enough log level
if( (ctx != NULL) && (ctx->log != NULL) && (ctx->loglevel >= loglvl) ) {
va_list ap;
char tstmp_str[200];
time_t tstmp;
struct tm *loctstmp;
// Get time stamp
memset(&tstmp_str, 0, 200);
tstmp = time(NULL);
loctstmp = localtime(&tstmp);
if( loctstmp != NULL ) {
if( strftime(tstmp_str, 198, "%Y-%m-%d %H:%M:%S %Z", loctstmp) == 0 ) {
snprintf(tstmp_str, 198, "(error getting time stamp string)");
}
} else {
snprintf(tstmp_str, 198, "(error getting timestamp)");
}
va_start(ap, fmt);
pthread_mutex_lock(&log_mutex); // Block other threads from writing when we write
fprintf(ctx->log, "[%s] %s [%i] ", tstmp_str, erp_logtypes[logdst], loglvl);
vfprintf(ctx->log, fmt, ap);
fprintf(ctx->log, "\n");
fflush(ctx->log);
pthread_mutex_unlock(&log_mutex); // Unblock other threads
va_end(ap);
}
}
|
