static int binlog_file_add(binlog *bl, void *buf, unsigned int len)
{
int ret;
/* bail out early if there's no room */
if (bl->file_size + (off_t)len > bl->max_file_size)
return BINLOG_ENOSPC;
ret = binlog_open(bl);
if (ret < 0)
return ret;
ret = safe_write(bl, &len, sizeof(len));
if (ret)
return ret;
ret = safe_write(bl, buf, len);
bl->file_size += len + sizeof(len);
bl->file_entries++;
return ret;
}
struct _leveldb_stuff *ldb_initialize(char *path)
{
struct _leveldb_stuff *ldbs = NULL;
leveldb_cache_t *cache;
leveldb_filterpolicy_t *policy;
char* err = NULL;
ldbs = malloc(sizeof(struct _leveldb_stuff));
memset(ldbs, 0, sizeof(struct _leveldb_stuff));
ldbs->options = leveldb_options_create();
snprintf(ldbs->dbname, sizeof(ldbs->dbname), "%s/%s", LDB_WORK_PATH, path);
cache = leveldb_cache_create_lru(LDB_CACHE_LRU_SIZE);
policy = leveldb_filterpolicy_create_bloom(LDB_BLOOM_KEY_SIZE);
leveldb_options_set_filter_policy(ldbs->options, policy);
leveldb_options_set_cache(ldbs->options, cache);
leveldb_options_set_block_size(ldbs->options, LDB_BLOCK_SIZE);
leveldb_options_set_write_buffer_size(ldbs->options, LDB_WRITE_BUFFER_SIZE);
leveldb_options_set_compaction_speed(ldbs->options, g_cfg_pool.ldb_compaction_speed);
#if defined(OPEN_COMPRESSION)
leveldb_options_set_compression(ldbs->options, leveldb_snappy_compression);
#else
leveldb_options_set_compression(ldbs->options, leveldb_no_compression);
#endif
/* R */
ldbs->roptions = leveldb_readoptions_create();
leveldb_readoptions_set_verify_checksums(ldbs->roptions, 1);
leveldb_readoptions_set_fill_cache(ldbs->roptions, 1);/* set 1 is faster */
/* W */
ldbs->woptions = leveldb_writeoptions_create();
#ifdef SYNC_PUT
leveldb_writeoptions_set_sync(ldbs->woptions, 1);
#else
leveldb_writeoptions_set_sync(ldbs->woptions, 0);
#endif
/* B */
ldbs->wbatch = leveldb_writebatch_create();
leveldb_options_set_create_if_missing(ldbs->options, 1);
ldbs->db = leveldb_open(ldbs->options, ldbs->dbname, &err);
if (err) {
fprintf(stderr, "%s", err);
leveldb_free(err);
err = NULL;
free(ldbs);
return NULL ;
}
/* initial binlog. */
binlog_open(ldbs, g_cfg_pool.has_slave);
/* initial slave. */
if (slave_open(ldbs, g_cfg_pool.has_slave, g_cfg_pool.slave_ip, g_cfg_pool.slave_wport) != 0) {
return NULL;
}
return ldbs;
}