source: trunk/mondo/src/lib/mr_msg.c @ 1074

Last change on this file since 1074 was 1074, checked in by bruno, 13 years ago

This version of trunk desn't seg fault on mr_msg anymore.
Still not ready for 3.0.0 but improvements ongoing

  • Property svn:eol-style set to native
File size: 1.8 KB
RevLine 
[900]1/*
2 * $Id$
3 *
4 * Code (c)2006 Bruno Cornec <bruno@mondorescue.org>
5 *
6 *     Main file of mr_msg : a very small and simple
7 *     library for messages management
8 *
9 * Provided under the GPLv2
10 */
11
[1074]12#ifndef _GNU_SOURCE
13#define _GNU_SOURCE
14#endif
[900]15#include <stdio.h>
16#include <stdarg.h>
[1074]17#include <stdlib.h>
[900]18
19static int mr_loglevel = 0;
20static char *mr_logfile = NULL;
21
[1074]22/*
23 * This function is in the lowest part of the tree
24 * It should not depend on any other function of the mr lib
25 */
26
27/* Cleanup function for messages */
28void mr_msg_close(void) {
29    free(mr_logfile);
30    mr_logfile = NULL;
31    mr_loglevel = 0;
32}
33
[900]34/* Initialization function for messages */
[1074]35void mr_msg_init(const char *configfile, int loglevel) {
36    FILE *fout = NULL;
37    int res = 0;
[900]38
[1074]39    asprintf(&mr_logfile,configfile);
40    if ((fout = fopen(mr_logfile, "w")) == NULL) {
41        fprintf(stderr,"Unable to write to %s\n",mr_logfile);
42        fprintf(stderr,"Logging desactivated\n");
43        mr_msg_close();
44    }
45    if ((res = fclose(fout)) != 0) {
46        fprintf(stderr,"Unable to close %s\n",mr_logfile);
47    }
48    mr_loglevel = loglevel;
[900]49}
50
51/*
52 * Function that log a message. Not called directly
[1074]53 * but through other functions
[900]54 */
[1074]55void mr_msg(int debug, const char *fmt, ...) {
[900]56
57    int i = 0;
58    int res = 0;
59    FILE *fout = NULL;
[1074]60    va_list args;
[900]61
[1074]62    if (mr_logfile == NULL) {
63        return;
64    }
65
[900]66    if (debug <= mr_loglevel) {
[1074]67        if ((fout = fopen(mr_logfile, "a")) == NULL) {
[900]68            fprintf(stderr,"Unable to append to %s\n",mr_logfile);
69            return;
70        }
71
72        // add 2 spaces to distinguish log levels
73        if (debug > 0) {
74            for (i = 1; i < debug; i++)
75                fprintf(fout, "  ");
[1074]76            fprintf(fout, "%s->%s#%d: ", __FILE__, __FUNCTION__, __LINE__);
[900]77        }
[1074]78        va_start(args,fmt);
79        if (vfprintf(fout, fmt, args) < 0) {
80            fprintf(stderr,"Unable to print to %s\n",mr_logfile);
81        }
82        va_end(args);
[900]83
84        if ((res = fclose(fout)) != 0) {
85            fprintf(stderr,"Unable to close %s\n",mr_logfile);
86        }
87    }
88}
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