void *_merge_job(void *arg)
{
int lsn;
struct index *idx;
struct skiplist *list;
struct sst *sst;
struct log *log;
/* Lock begin */
idx = (struct index*)arg;
lsn = idx->park->lsn;
list = idx->park->list;
sst = idx->sst;
log = idx->log;
if(list == NULL)
goto merge_out;
pthread_mutex_lock(&idx->merge_mutex);
sst_merge(sst, list, 0);
pthread_mutex_unlock(&idx->merge_mutex);
/* Lock end */
log_remove(log, lsn);
merge_out:
pthread_detach(pthread_self());
pthread_exit(NULL);
}
void _index_flush(struct index *idx)
{
struct skiplist *list;
/* Waiting bg merging thread done */
pthread_mutex_lock(&idx->merge_mutex);
pthread_mutex_unlock(&idx->merge_mutex);
list = idx->list;
if(list && list->count > 0) {
sst_merge(idx->sst, list, 0);
log_remove(idx->log, idx->lsn);
}
}
void log_clear(log_t *log) {
node_t *node;
for (node = log->messages.head; node; node = node->next)
log_remove(log, node);
}
