/**
* Invoked to when we've reached the flush interval timeout
*/
void flush_interval_trigger() {
// Make a new metrics object
metrics *m = malloc(sizeof(metrics));
init_metrics(GLOBAL_CONFIG->timer_eps, GLOBAL_CONFIG->quantiles,
GLOBAL_CONFIG->num_quantiles, GLOBAL_CONFIG->histograms,
GLOBAL_CONFIG->set_precision, m);
// Swap with the new one
metrics *old = GLOBAL_METRICS;
GLOBAL_METRICS = m;
// Start a flush thread
pthread_t thread;
sigset_t oldset;
sigset_t newset;
sigfillset(&newset);
pthread_sigmask(SIG_BLOCK, &newset, &oldset);
int err = pthread_create(&thread, NULL, flush_thread, old);
pthread_sigmask(SIG_SETMASK, &oldset, NULL);
if (err == 0) {
pthread_detach(thread);
return;
}
syslog(LOG_WARNING, "Failed to spawn flush thread: %s", strerror(err));
GLOBAL_METRICS = old;
destroy_metrics(m);
free(m);
}
END_TEST
START_TEST(test_metrics_init_defaults_and_destroy)
{
metrics m;
int res = init_metrics_defaults(&m);
fail_unless(res == 0);
res = destroy_metrics(&m);
fail_unless(res == 0);
}
/**
* This is the thread that is invoked to handle flushing metrics
*/
static void* flush_thread(void *arg) {
// Cast the args
metrics *m = arg;
// Get the current time
struct timeval tv;
gettimeofday(&tv, NULL);
// Stream the records
int res = stream_to_command(m, &tv, stream_formatter, GLOBAL_CONFIG->stream_cmd);
if (res != 0) {
syslog(LOG_WARNING, "Streaming command exited with status %d", res);
}
// Cleanup
destroy_metrics(m);
free(m);
}
/**
* This is the thread that is invoked to handle flushing metrics
*/
static void* flush_thread(void *arg) {
// Cast the args
metrics *m = arg;
// Get the current time
struct timeval tv;
gettimeofday(&tv, NULL);
// Determine which callback to use
stream_callback cb = (GLOBAL_CONFIG->binary_stream)? stream_formatter_bin: stream_formatter;
// Stream the records
int res = stream_to_command(m, &tv, cb, GLOBAL_CONFIG->stream_cmd);
if (res != 0) {
syslog(LOG_WARNING, "Streaming command exited with status %d", res);
}
// Cleanup
destroy_metrics(m);
free(m);
return NULL;
}