static void rotate_log()
{
time_t rawtime;
struct tm * timeinfo;
time(&rawtime);
timeinfo = localtime(&rawtime);
// rotate log next day at 00:00:00
timeinfo->tm_hour = timeinfo->tm_min = timeinfo->tm_sec = 0;
log_rotate_time = mktime(timeinfo);
log_rotate_time += 60 * 60 * 24; // +24h
// change filename
char filename[256];
strftime(filename, arrayof(filename), LOG_FILENAME, timeinfo);
logger_file_open(filename);
assert(log_file != NULL);
}
int
logger_open(
log_level_t level,
const char *type,
const char *ident,
int option,
const char *facility,
const char *logfile)
{
int error = 0;
char *dup_logfile = NULL;
ASSERT(g_logger != NULL);
ASSERT(type != NULL);
if (strcasecmp(type, "file") == 0 &&
(logfile == NULL || logfile[0] == '\0')) {
errno = EINVAL;
return 1;
}
if (logfile && logfile != '\0') {
dup_logfile = strdup(logfile);
if (dup_logfile == NULL) {
return 1;
}
}
if (g_logger->log_state == LOG_ST_OPENED) {
if (g_logger->log_type == LOG_TYPE_VALUE_FILE) {
if (g_logger->log == NULL) {
fprintf(stderr,
"did not opened log file %s.",
g_logger->logfilename);
} else {
fclose(g_logger->log);
g_logger->log = NULL;
}
free(g_logger->logfilename);
g_logger->logfilename = NULL;
} else if (g_logger->log_type == LOG_TYPE_VALUE_SYSLOG) {
closelog();
}
g_logger->log_state = LOG_ST_CLOSED;
g_logger->log_type = LOG_TYPE_VALUE_STDERR;
}
if (strcasecmp(type, LOG_TYPE_FILE) == 0) {
if (logger_file_open(dup_logfile)) {
g_logger->log_type = LOG_TYPE_VALUE_STDERR;
} else {
g_logger->log_type = LOG_TYPE_VALUE_FILE;
g_logger->logfilename = dup_logfile;
}
} else if (strcasecmp(type, LOG_TYPE_SYSLOG) == 0) {
logger_syslog_open(ident, option, facility);
g_logger->log_type = LOG_TYPE_VALUE_SYSLOG;
} else if (strcasecmp(type, LOG_TYPE_STDOUT) == 0) {
g_logger->log_type = LOG_TYPE_VALUE_STDOUT;
} else {
g_logger->log_type = LOG_TYPE_VALUE_STDERR;
}
g_logger->log_state = LOG_ST_OPENED;
if (g_logger->log_type != LOG_TYPE_VALUE_FILE) {
free(dup_logfile);
}
if (level > LOG_LV_MIN && level < LOG_LV_MAX) {
g_logger->verbose_level = level;
} else {
g_logger->verbose_level = DEFAULT_VERBOSE_LEVEL;
}
g_logger->pid = getpid();
if (error) {
free(dup_logfile);
} else {
if (g_logger->verbose_level >= LOG_LV_DEBUG) {
LOG(LOG_LV_DEBUG,
"logging info: type = %d, level %d, state %d, pid %d",
g_logger->log_type,
g_logger->verbose_level,
g_logger->log_state,
g_logger->pid);
}
}
return error;
}
