source: trunk/mondo/src/lib/mr_msg.c @ 1106

Last change on this file since 1106 was 1106, checked in by bruno, 13 years ago

merge -r1082:1105 $SVN_M/branches/stable

  • Property svn:eol-style set to native
File size: 1.9 KB
Line 
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
12#ifndef _GNU_SOURCE
13#define _GNU_SOURCE
14#endif
15#include <stdio.h>
16#include <stdarg.h>
17#include <stdlib.h>
18
19static int mr_loglevel = 0;
20static char *mr_logfile = NULL;
21
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
34/* Initialization function for messages */
35void mr_msg_init(const char *configfile, int loglevel) {
36    FILE *fout = NULL;
37    int res = 0;
38
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;
49}
50
51/*
52 * Function that log a message. Not called directly
53 * but through other functions
54 * fmt needs to be just before ...
55 */
56void mr_msg_int(int debug, int line, const char *file, const char *fmt, ...) {
57
58    int i = 0;
59    int res = 0;
60    FILE *fout = NULL;
61    va_list args;
62
63    if (mr_logfile == NULL) {
64        return;
65    }
66
67    if (debug <= mr_loglevel) {
68        if ((fout = fopen(mr_logfile, "a")) == NULL) {
69            fprintf(stderr,"Unable to append to %s\n",mr_logfile);
70            return;
71        }
72
73        // add 2 spaces to distinguish log levels
74        if (debug > 0) {
75            for (i = 1; i < debug; i++)
76                fprintf(fout, "  ");
77            fprintf(fout, "%s #%d: ", file, line);
78        }
79        va_start(args,fmt);
80        if (vfprintf(fout, fmt, args) < 0) {
81            fprintf(stderr,"Unable to print to %s\n",mr_logfile);
82        }
83        va_end(args);
84
85        if ((res = fclose(fout)) != 0) {
86            fprintf(stderr,"Unable to close %s\n",mr_logfile);
87        }
88    }
89}
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