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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
#include "log.h"
static struct {
char *name;
int set;
FILE *fps[MAX_LOGFILES];
int nfps;
int stder;
#ifdef COLOR
char *color;
#endif
} log_levels[LOG_LEVEL_COUNT] = {
[LOG_DEBUG] = {
.name = "DEBUG", .set = 1, .fps = {0}, .nfps = 0, .stder = 1,
#ifdef COLOR
.color = "\e[38;2;255;255;0m"
#endif
},
[LOG_INFO] = {
.name = "INFO", .set = 1, .fps = {0}, .nfps = 0, .stder = 1,
#ifdef COLOR
.color = "\e[38;2;0;224;255m"
#endif
},
[LOG_WARN] = {
.name = "WARN", .set = 1, .fps = {0}, .nfps = 0, .stder = 1,
#ifdef COLOR
.color = "\e[38;2;255;165;0m"
#endif
},
[LOG_ERROR] = {
.name = "ERROR", .set = 1, .fps = {0}, .nfps = 0, .stder = 1,
#ifdef COLOR
.color = "\e[38;2;255;0;0m"
#endif
}
};
static char time_format[16] = "%T";
static int nanosecond_precision = 0;
int log_get_stderr(int level){
if(level >= 0 && level < LOG_LEVEL_COUNT){
return log_levels[level].stder;
}
return 0;
}
int log_set_stderr(int level, int of){
if(level >= 0 && level < LOG_LEVEL_COUNT){
return log_levels[level].stder = of;
}
return 0;
}
int log_get_level(int level){
if(level >= 0 && level < LOG_LEVEL_COUNT){
return log_levels[level].set;
}
return 0;
}
int log_set_level(int level, int of){
if(level >= 0 && level < LOG_LEVEL_COUNT){
return log_levels[level].set = of;
}
return 0;
}
int log_add_fp(int level, FILE *fp){
if(fp != NULL && level >= 0 && level < LOG_LEVEL_COUNT && log_levels[level].nfps < MAX_LOGFILES){
log_levels[level].fps[log_levels[level].nfps++] = fp;
return 0;
}
return 1;
}
FILE *log_get_fp(int level, int i){
if(level >= 0 && level < LOG_LEVEL_COUNT && i >= 0 && i < log_levels[level].nfps){
return log_levels[level].fps[i];
}
return NULL;
}
int log_remove_fp(int level, FILE *fp){
if(level >= 0 && level < LOG_LEVEL_COUNT){
for(int i = 0; i < log_levels[level].nfps; i++){
if(log_levels[level].fps[i] == fp){
for(int j = i; j < MAX_LOGFILES-1; j++){
log_levels[level].fps[j] = log_levels[level].fps[j+1];
}
log_levels[level].fps[log_levels[level].nfps--] = NULL;
return 0;
}
}
}
return 1;
}
int log_remove_fp_i(int level, int i){
if(level < 0 || level >= LOG_LEVEL_COUNT || i < 0 || i >= log_levels[level].nfps){
return 1;
}
int j = i;
for(; j < log_levels[level].nfps-1; j++){
log_levels[level].fps[j] = log_levels[level].fps[j+1];
}
log_levels[level].fps[j] = NULL;
return 0;
}
int log_remove_fps(int level){
if(level < 0 || level >= LOG_LEVEL_COUNT){
return 1;
}
for(int i = 0; i < log_levels[level].nfps; i++){
log_levels[level].fps[i] = NULL;
}
log_levels[level].nfps = 0;
return 0;
}
int log_get_files(int level){
if(level >= 0 && level < LOG_LEVEL_COUNT){
return log_levels[level].nfps;
}
return 0;
}
void log_time_format(char *tf){
strncpy(time_format, tf, sizeof(time_format)/sizeof(time_format[0]));
}
int log_nanoseconds(int n){
return nanosecond_precision = n%10;
}
void log_message(int level, char *file, int line, char *fmt, ...){
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
if(level >= 0 && level < LOG_LEVEL_COUNT && log_levels[level].set){
struct tm *lt = localtime(&ts.tv_sec);
char t[32] = {0};
strftime(t, 31, time_format, lt);
char ns[9] = {0};
snprintf(ns, nanosecond_precision+1, "%ld", ts.tv_nsec);
char msg[MSG_LIMIT] = {0};
int written = snprintf(msg, MSG_LIMIT-2,
#ifdef PID
// the maximum PID is a 5 digit number. this shoud be customizable
"[%-5d] "
#endif
"%s%s%s%s%s%s%s\t",
#ifdef PID
getpid(),
#endif
t, nanosecond_precision ? "." : "", ns,
t[0] != '\0' ? " " : "",
#ifdef COLOR
log_levels[level].color,
#else
"",
#endif
log_levels[level].name, "\e[0m"
);
if(level == LOG_DEBUG){
written += snprintf(msg+written, MSG_LIMIT-2-written, "%s:%d: ", file, line);
}
va_list args;
va_start(args, fmt);
written += vsnprintf(msg+written, MSG_LIMIT-2-written, fmt, args);
msg[written] = '\n';
if(log_levels[level].stder) fputs(msg, stderr);
for(int i = 0; i < log_levels[level].nfps; i++){
if(log_levels[level].fps[i] != NULL){
fputs(msg, log_levels[level].fps[i]);
fflush(log_levels[level].fps[i]);
}
}
}
}
|
