TapTap
6d82967c68
- Add log_perror() helper (context + strerror(errno)) to the log module - Replace all bare perror() calls with log_perror() so errors are routed through the unified logger (stderr sink + optional --log-file sink) - Convert fprintf(stderr, "Error:/Warning: ...") in client code to log_message(); raw fprintf kept only for progress/stats output
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
#include "log.h"
|
|
#include <errno.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
static const char* log_level_strings[] = {"DEBUG", "INFO", "WARN", "ERROR"};
|
|
static LogLevel current_log_level = LOG_LEVEL_WARNING;
|
|
static FILE* log_fp = NULL;
|
|
|
|
void set_log_level(LogLevel level) {
|
|
current_log_level = level;
|
|
}
|
|
|
|
void log_set_file(FILE* fp) {
|
|
log_fp = fp;
|
|
}
|
|
|
|
static inline void write_message(FILE* dest_io, LogLevel log_level, struct tm t, const char* format,
|
|
va_list args) {
|
|
fprintf(dest_io, "%04d-%02d-%02d %02d:%02d:%02d [%s]: ", t.tm_year + 1900, t.tm_mon + 1,
|
|
t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec, log_level_strings[log_level]);
|
|
|
|
vfprintf(dest_io, format, args);
|
|
fprintf(dest_io, "\n");
|
|
}
|
|
|
|
void log_message(LogLevel log_level, const char* format, ...) {
|
|
if (log_level < current_log_level)
|
|
return;
|
|
if (log_level < 0 || log_level >= (int)(sizeof(log_level_strings) / sizeof(log_level_strings[0])))
|
|
return;
|
|
time_t now = time(NULL);
|
|
struct tm t;
|
|
if (!localtime_r(&now, &t))
|
|
return;
|
|
|
|
FILE* dest_io = stdout;
|
|
if (log_level == LOG_LEVEL_ERROR) {
|
|
dest_io = stderr;
|
|
}
|
|
|
|
va_list args;
|
|
va_start(args, format);
|
|
write_message(dest_io, log_level, t, format, args);
|
|
va_end(args);
|
|
|
|
if (log_fp) {
|
|
va_start(args, format);
|
|
write_message(log_fp, log_level, t, format, args);
|
|
va_end(args);
|
|
}
|
|
}
|
|
|
|
void log_perror(const char* context) {
|
|
log_message(LOG_LEVEL_ERROR, "%s: %s", context, strerror(errno));
|
|
}
|