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/* b01902062 藍挺瑋 */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "logger.h"
#include "xwrap.h"
#include <fcntl.h>
#include <locale.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
void comp135_init (Comp135* comp, const char* static_name, bool no_init) {
if (!no_init) {
setlocale (LC_ALL, "");
tzset ();
}
comp->name = (char*)static_name;
comp->pid = getpid ();
comp->debug = false;
const char* comp135_debug = getenv ("COMP135_DEBUG");
const char* comp135_logfile = getenv ("COMP135_LOGFILE");
if (comp135_debug == NULL ||
strcmp (comp135_debug, "0") == 0 ||
strcmp (comp135_debug, "n") == 0 ||
strcmp (comp135_debug, "no") == 0 ||
strcmp (comp135_debug, "f") == 0 ||
strcmp (comp135_debug, "false") == 0) {
return;
}
comp->debug = true;
comp->log = NULL;
comp->log_fd = STDERR_FILENO;
comp->log_file = stderr;
if (comp135_logfile == NULL || *comp135_logfile == '\0') {
return;
}
int fd = open (
comp135_logfile, O_WRONLY | O_CREAT | O_APPEND, S_IWUSR | S_IRUSR);
if (fd < 0) {
return;
}
FILE* fp = fdopen (fd, "wb");
if (fp == NULL) {
close (fd);
return;
}
setvbuf (fp, NULL, _IONBF, 0);
comp->log = xstrdup (comp135_logfile);
comp->log_fd = fd;
comp->log_file = fp;
}
void comp135_destroy (Comp135* comp) {
if (!comp->debug) {
return;
}
if (comp->log != NULL) {
free (comp->log);
fclose (comp->log_file);
}
}
void comp135_log (Comp135* comp, const char* format, ...) {
if (!comp->debug) {
return;
}
time_t t;
struct tm tmd;
time (&t);
localtime_r (&t, &tmd);
struct flock lock_info = {
.l_type = F_WRLCK,
.l_whence = SEEK_END,
.l_start = 0,
.l_len = 0
};
fcntl (comp->log_fd, F_SETLKW, &lock_info);
fprintf (comp->log_file,
"%04d-%02d-%02d %02d:%02d:%02d %s [%d]: ",
tmd.tm_year + 1900, tmd.tm_mon + 1, tmd.tm_mday,
tmd.tm_hour, tmd.tm_min, tmd.tm_sec,
comp->name, comp->pid);
va_list ap;
va_start (ap, format);
vfprintf (comp->log_file, format, ap);
va_end (ap);
putc ('\n', comp->log_file);
lock_info.l_type = F_UNLCK;
fcntl (comp->log_fd, F_SETLK, &lock_info);
}
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