void utime_to_timeval(int64_t v, struct timeval *tv)
{
tv->tv_sec = timestamp_seconds(v);
tv->tv_usec = timestamp_useconds(v);
}
void utime_to_timespec(int64_t v, struct timespec *ts)
{
ts->tv_sec = timestamp_seconds(v);
ts->tv_nsec = timestamp_useconds(v)*1000;
}
static void*
write_thread(void *user_data)
{
logger_t *logger = (logger_t*) user_data;
GTimeVal start_time;
g_get_current_time(&start_time);
int num_splits = 0;
int64_t next_split_sec = start_time.tv_sec + logger->auto_split_hours * SECONDS_PER_HOUR;
while(1) {
void *msg = g_async_queue_pop(logger->write_queue);
// Is it time to start a new logfile?
int split_log = 0;
if(logger->auto_split_hours) {
GTimeVal now;
g_get_current_time(&now);
split_log = (now.tv_sec > next_split_sec);
} else if(logger->auto_split_mb) {
double logsize_mb = (double)logger->logsize / (1 << 20);
split_log = (logsize_mb > logger->auto_split_mb);
}
if(_reset_logfile) {
split_log = 1;
_reset_logfile = 0;
}
if(split_log) {
// Yes. open up a new log file
lcm_eventlog_destroy(logger->log);
if(0 != open_logfile(logger))
exit(1);
num_splits++;
int64_t log_duration_sec = logger->auto_split_hours * SECONDS_PER_HOUR;
next_split_sec = start_time.tv_sec + (num_splits + 1) * log_duration_sec;
logger->logsize = 0;
logger->last_report_logsize = 0;
}
// Should the write thread exit?
g_mutex_lock(logger->mutex);
if(logger->write_thread_exit_flag) {
g_mutex_unlock(logger->mutex);
return NULL;
}
// nope. write the event to disk
lcm_eventlog_event_t *le = (lcm_eventlog_event_t*) msg;
int64_t sz = sizeof(lcm_eventlog_event_t) + le->channellen + 1 + le->datalen;
logger->write_queue_size -= sz;
g_mutex_unlock(logger->mutex);
if(0 != lcm_eventlog_write_event(logger->log, le)) {
static int64_t last_spew_utime = 0;
char *reason = strdup(strerror(errno));
int64_t now = timestamp_now();
if(now - last_spew_utime > 500000) {
fprintf(stderr, "lcm_eventlog_write_event: %s\n", reason);
last_spew_utime = now;
}
free(reason);
free(le);
if(errno == ENOSPC) {
exit(1);
} else {
continue;
}
}
if (logger->fflush_interval_ms >= 0 &&
(le->timestamp - logger->last_fflush_time) > logger->fflush_interval_ms*1000) {
fflush(logger->log->f);
logger->last_fflush_time = le->timestamp;
}
// bookkeeping, cleanup
int64_t offset_utime = le->timestamp - logger->time0;
logger->nevents++;
logger->events_since_last_report ++;
logger->logsize += 4 + 8 + 8 + 4 + le->channellen + 4 + le->datalen;
free(le);
if (offset_utime - logger->last_report_time > 1000000) {
double dt = (offset_utime - logger->last_report_time)/1000000.0;
double tps = logger->events_since_last_report / dt;
double kbps = (logger->logsize - logger->last_report_logsize) / dt / 1024.0;
printf("Summary: %s ti:%4"PRIi64"sec Events: %-9"PRIi64" ( %4"PRIi64" MB ) TPS: %8.2f KB/s: %8.2f\n",
logger->fname,
timestamp_seconds(offset_utime),
logger->nevents, logger->logsize/1048576,
tps, kbps);
logger->last_report_time = offset_utime;
logger->events_since_last_report = 0;
logger->last_report_logsize = logger->logsize;
}
}
}