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
|
#define LOG_LINE_SIZE 1024
enum LogLevel {
LOG_INFO,
LOG_WARN,
LOG_ERRO,
};
char g_log_buff[LOG_LINE_SIZE];
void log_msg_to_buff(char *out, int size, enum LogLevel level, const char *format, va_list args) {
assert(out);
assert(size);
assert(level == LOG_INFO || level == LOG_WARN || level == LOG_ERRO);
assert(format);
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
long msec = ts.tv_nsec / 1000000;
struct tm tm = *localtime(&ts.tv_sec);
int pid = getpid();
char *level_str = NULL;
switch (level) {
case LOG_INFO: level_str = "INFO"; break;
case LOG_WARN: level_str = "WARN"; break;
case LOG_ERRO: level_str = "ERRO"; break;
default: assert(false);
}
int col = snprintf(
out,
size,
"%d-%02d-%02d %02d:%02d:%02d.%03ld %d [%s] ",
tm.tm_year + 1900,
tm.tm_mon + 1,
tm.tm_mday,
tm.tm_hour,
tm.tm_min,
tm.tm_sec,
msec,
pid,
level_str
);
vsnprintf(out + col, size - col, format, args);
}
void log_msg(enum LogLevel level, const char *format, va_list args) {
assert(level == LOG_INFO || level == LOG_WARN || level == LOG_ERRO);
assert(format);
log_msg_to_buff(g_log_buff, LOG_LINE_SIZE, level, format, args);
printf("\r%s\n", g_log_buff);
}
void log_info(const char *format, ...) {
assert(format);
va_list args;
va_start(args, format);
log_msg(LOG_INFO, format, args);
va_end(args);
}
void log_warn(const char *format, ...) {
assert(format);
va_list args;
va_start(args, format);
log_msg(LOG_WARN, format, args);
va_end(args);
}
void log_erro(const char *format, ...) {
assert(format);
va_list args;
va_start(args, format);
log_msg(LOG_ERRO, format, args);
va_end(args);
exit(1);
}
|
