static void* flush_thread_main(void *in) {
bloom_config *config;
bloom_filtmgr *mgr;
int *should_run;
UNPACK_ARGS();
// Perform the initial checkpoint with the manager
filtmgr_client_checkpoint(mgr);
syslog(LOG_INFO, "Flush thread started. Interval: %d seconds.", config->flush_interval);
unsigned int ticks = 0;
while (*should_run) {
sleep(1);
filtmgr_client_checkpoint(mgr);
if ((++ticks % config->flush_interval) == 0 && *should_run) {
// List all the filters
syslog(LOG_INFO, "Scheduled flush started.");
bloom_filter_list_head *head;
int res = filtmgr_list_filters(mgr, &head);
if (res != 0) {
syslog(LOG_WARNING, "Failed to list filters for flushing!");
continue;
}
// Flush all, ignore errors since
// filters might get deleted in the process
bloom_filter_list *node = head->head;
while (node) {
filtmgr_flush_filter(mgr, node->filter_name);
node = node->next;
}
// Cleanup
filtmgr_cleanup_list(head);
}
}
return NULL;
}
static void* unmap_thread_main(void *in) {
bloom_config *config;
bloom_filtmgr *mgr;
int *should_run;
UNPACK_ARGS();
// Perform the initial checkpoint with the manager
filtmgr_client_checkpoint(mgr);
syslog(LOG_INFO, "Cold unmap thread started. Interval: %d seconds.", config->cold_interval);
unsigned int ticks = 0;
while (*should_run) {
sleep(1);
filtmgr_client_checkpoint(mgr);
if ((++ticks % config->cold_interval) == 0 && *should_run) {
// List the cold filters
syslog(LOG_INFO, "Cold unmap started.");
bloom_filter_list_head *head;
int res = filtmgr_list_cold_filters(mgr, &head);
if (res != 0) {
continue;
}
// Close the filters, save memory
syslog(LOG_INFO, "Cold filter count: %d", head->size);
bloom_filter_list *node = head->head;
while (node) {
syslog(LOG_INFO, "Unmapping filter '%s' for being cold.", node->filter_name);
filtmgr_unmap_filter(mgr, node->filter_name);
node = node->next;
}
// Cleanup
filtmgr_cleanup_list(head);
}
}
return NULL;
}
/**
* Periodic update is used to update our checkpoint with
* the filter manager, so that vacuum progress can be made.
*/
void periodic_update(bloom_conn_handler *handle) {
filtmgr_client_checkpoint(handle->mgr);
}
