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/* eurephia_log.c -- eurephia logging
*
* GPLv2 - 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.
*
*/
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include <pthread.h>
#include "eurephia_struct.h"
#include "eurephia_log.h"
const char *erp_logtypes[] = {
"\0",
"-- INFO -- \0",
"-- DEBUG -- \0",
"** WARNING ** \0",
"** ERROR ** \0",
"** CRITICAL ** \0",
"** - FATAL - ** \0",
"** * PANIC * ** \0"
};
// POSIX Mutex to avoild simultaneously logging activity from
// several threads at the same time
pthread_mutex_t log_mutex = PTHREAD_MUTEX_INITIALIZER;
// Simple log function ... Write log data to the context log file
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->log != NULL) && (ctx->loglevel >= loglvl) ) {
va_list ap;
char tstmp_str[200];
time_t tstmp;
struct tm *loctstmp;
// Get timestamp
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 timestamp 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);
}
}
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