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
104
105
106
107
108
|
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdarg.h>
FILE *logfile = NULL;
int loglevel;
#define LOG_FATAL 0
#define LOG_WARN 1
#define LOG_INFO 2
#define LOG_DEBUG 3
static void logit(int, const char *, va_list);
void
log_init(int level, int logstdout)
{
char name[128];
if (logstdout == 1) {
logfile = stderr;
} else {
snprintf(name, sizeof(name), "pg.log");
logfile = fopen(name, "a+");
if (!logfile) {
printf("cannot open log file %s!\n", name);
exit(1);
}
}
loglevel = level;
}
void
log_tmp(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
vfprintf(logfile, msg, ap);
fprintf(logfile, "\n");
fflush(logfile);
va_end(ap);
}
void
log_debug(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
logit(LOG_DEBUG, msg, ap);
va_end(ap);
}
void
log_info(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
logit(LOG_INFO, msg, ap);
va_end(ap);
}
void
log_warn(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
logit(LOG_WARN, msg, ap);
va_end(ap);
}
void
fatal(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
logit(LOG_FATAL, msg, ap);
va_end(ap);
exit(1);
}
static void
logit(int level, const char *msg, va_list ap)
{
time_t clock;
char type;
if (level <= loglevel) {
switch (level) {
case LOG_FATAL: type='X'; break;
case LOG_WARN: type='W'; break;
case LOG_INFO: type='.'; break;
case LOG_DEBUG: type=' '; break;
}
time(&clock);
fprintf(logfile, "%d %c ", (int)clock, type);
vfprintf(logfile, msg, ap);
fprintf(logfile, "\n");
fflush(logfile);
}
}
|
