source: MondoRescue/trunk/mondo/src/lib/mr_msg.c@ 979

/*
 * $Id$
 *
 * Code (c)2006 Bruno Cornec <bruno@mondorescue.org>
 *
 *     Main file of mr_msg : a very small and simple
 *     library for messages management
 *
 * Provided under the GPLv2
 */

#include <stdio.h>
#include <stdarg.h>

static int mr_loglevel = 0;
static char *mr_logfile = NULL;

/* Initialization function for messages */
void mr_msg_init(void) {

}

/*
 * Function that log a message. Not called directly 
 * but through macros in mr_msg.h
 */
void _mr_msg(int debug, const char *file, const char *function, int line, const char *fmt, ...) {

    va_list args;
    int i = 0;
    int res = 0;
    FILE *fout = NULL;

    if (debug <= mr_loglevel) {
        va_start(args, fmt);
        if (!(fout = fopen(mr_logfile, "a"))) {
            fprintf(stderr,"Unable to append to %s\n",mr_logfile);
            return;
        }

        // add 2 spaces to distinguish log levels
        if (debug > 0) {
            for (i = 1; i < debug; i++)
                fprintf(fout, "  ");
            fprintf(fout, "%s->%s#%d: ", file, function, line);
        }
        vfprintf(fout, fmt, args);

        va_end(args);
        fprintf(fout, "\n");
        if ((res = fclose(fout)) != 0) {
            fprintf(stderr,"Unable to close %s\n",mr_logfile);
        }
    }
}