示例#1
0
文件: conn_log.c 项目: mpobrien/mongo
/*
 * __wt_logmgr_create --
 *	Initialize the log subsystem (before running recovery).
 */
int
__wt_logmgr_create(WT_SESSION_IMPL *session, const char *cfg[])
{
	WT_CONNECTION_IMPL *conn;
	WT_LOG *log;
	bool run;

	conn = S2C(session);

	/* Handle configuration. */
	WT_RET(__logmgr_config(session, cfg, &run, false));

	/* If logging is not configured, we're done. */
	if (!run)
		return (0);

	FLD_SET(conn->log_flags, WT_CONN_LOG_ENABLED);
	/*
	 * Logging is on, allocate the WT_LOG structure and open the log file.
	 */
	WT_RET(__wt_calloc_one(session, &conn->log));
	log = conn->log;
	WT_RET(__wt_spin_init(session, &log->log_lock, "log"));
	WT_RET(__wt_spin_init(session, &log->log_fs_lock, "log files"));
	WT_RET(__wt_spin_init(session, &log->log_slot_lock, "log slot"));
	WT_RET(__wt_spin_init(session, &log->log_sync_lock, "log sync"));
	WT_RET(__wt_spin_init(session, &log->log_writelsn_lock,
	    "log write LSN"));
	WT_RET(__wt_rwlock_init(session, &log->log_archive_lock));
	if (FLD_ISSET(conn->direct_io, WT_DIRECT_IO_LOG))
		log->allocsize = (uint32_t)
		    WT_MAX(conn->buffer_alignment, WT_LOG_ALIGN);
	else
		log->allocsize = WT_LOG_ALIGN;
	WT_INIT_LSN(&log->alloc_lsn);
	WT_INIT_LSN(&log->ckpt_lsn);
	WT_INIT_LSN(&log->first_lsn);
	WT_INIT_LSN(&log->sync_lsn);
	/*
	 * We only use file numbers for directory sync, so this needs to
	 * initialized to zero.
	 */
	WT_ZERO_LSN(&log->sync_dir_lsn);
	WT_INIT_LSN(&log->trunc_lsn);
	WT_INIT_LSN(&log->write_lsn);
	WT_INIT_LSN(&log->write_start_lsn);
	log->fileid = 0;
	WT_RET(__logmgr_version(session, false));

	WT_RET(__wt_cond_alloc(session, "log sync", &log->log_sync_cond));
	WT_RET(__wt_cond_alloc(session, "log write", &log->log_write_cond));
	WT_RET(__wt_log_open(session));
	WT_RET(__wt_log_slot_init(session, true));

	return (0);
}
示例#2
0
文件: txn.c 项目: bsamek/wiredtiger
/*
 * __wt_txn_global_init --
 *	Initialize the global transaction state.
 */
int
__wt_txn_global_init(WT_SESSION_IMPL *session, const char *cfg[])
{
	WT_CONNECTION_IMPL *conn;
	WT_TXN_GLOBAL *txn_global;
	WT_TXN_STATE *s;
	u_int i;

	WT_UNUSED(cfg);
	conn = S2C(session);

	txn_global = &conn->txn_global;
	txn_global->current = txn_global->last_running =
	    txn_global->metadata_pinned = txn_global->oldest_id = WT_TXN_FIRST;

	WT_RET(__wt_spin_init(
	    session, &txn_global->id_lock, "transaction id lock"));
	WT_RET(__wt_rwlock_init(session, &txn_global->rwlock));
	WT_RET(__wt_rwlock_init(session, &txn_global->visibility_rwlock));

	WT_RET(__wt_rwlock_init(session, &txn_global->commit_timestamp_rwlock));
	TAILQ_INIT(&txn_global->commit_timestamph);

	WT_RET(__wt_rwlock_init(session, &txn_global->read_timestamp_rwlock));
	TAILQ_INIT(&txn_global->read_timestamph);

	WT_RET(__wt_rwlock_init(session, &txn_global->nsnap_rwlock));
	txn_global->nsnap_oldest_id = WT_TXN_NONE;
	TAILQ_INIT(&txn_global->nsnaph);

	WT_RET(__wt_calloc_def(
	    session, conn->session_size, &txn_global->states));

	for (i = 0, s = txn_global->states; i < conn->session_size; i++, s++)
		s->id = s->metadata_pinned = s->pinned_id = WT_TXN_NONE;

	return (0);
}
示例#3
0
/*
 * __wt_connection_init --
 *	Structure initialization for a just-created WT_CONNECTION_IMPL handle.
 */
int
__wt_connection_init(WT_CONNECTION_IMPL *conn)
{
	WT_SESSION_IMPL *session;
	u_int i;

	session = conn->default_session;

	for (i = 0; i < WT_HASH_ARRAY_SIZE; i++) {
		TAILQ_INIT(&conn->dhhash[i]);	/* Data handle hash lists */
		TAILQ_INIT(&conn->fhhash[i]);	/* File handle hash lists */
	}

	TAILQ_INIT(&conn->dhqh);		/* Data handle list */
	TAILQ_INIT(&conn->dlhqh);		/* Library list */
	TAILQ_INIT(&conn->dsrcqh);		/* Data source list */
	TAILQ_INIT(&conn->fhqh);		/* File list */
	TAILQ_INIT(&conn->collqh);		/* Collator list */
	TAILQ_INIT(&conn->compqh);		/* Compressor list */
	TAILQ_INIT(&conn->encryptqh);		/* Encryptor list */
	TAILQ_INIT(&conn->extractorqh);		/* Extractor list */

	TAILQ_INIT(&conn->lsmqh);		/* WT_LSM_TREE list */

	/* Setup the LSM work queues. */
	TAILQ_INIT(&conn->lsm_manager.switchqh);
	TAILQ_INIT(&conn->lsm_manager.appqh);
	TAILQ_INIT(&conn->lsm_manager.managerqh);

	/* Random numbers. */
	__wt_random_init(&session->rnd);

	/* Configuration. */
	WT_RET(__wt_conn_config_init(session));

	/* Statistics. */
	WT_RET(__wt_stat_connection_init(session, conn));

	/* Spinlocks. */
	WT_RET(__wt_spin_init(session, &conn->api_lock, "api"));
	WT_SPIN_INIT_TRACKED(session, &conn->checkpoint_lock, checkpoint);
	WT_RET(__wt_spin_init(session, &conn->encryptor_lock, "encryptor"));
	WT_RET(__wt_spin_init(session, &conn->fh_lock, "file list"));
	WT_SPIN_INIT_TRACKED(session, &conn->metadata_lock, metadata);
	WT_RET(__wt_spin_init(session, &conn->reconfig_lock, "reconfigure"));
	WT_SPIN_INIT_SESSION_TRACKED(session, &conn->schema_lock, schema);
	WT_RET(__wt_spin_init(session, &conn->turtle_lock, "turtle file"));

	/* Read-write locks */
	WT_RWLOCK_INIT_SESSION_TRACKED(session, &conn->dhandle_lock, dhandle);
	WT_RET(__wt_rwlock_init(session, &conn->hot_backup_lock));
	WT_RWLOCK_INIT_TRACKED(session, &conn->table_lock, table);

	/* Setup the spin locks for the LSM manager queues. */
	WT_RET(__wt_spin_init(session,
	    &conn->lsm_manager.app_lock, "LSM application queue lock"));
	WT_RET(__wt_spin_init(session,
	    &conn->lsm_manager.manager_lock, "LSM manager queue lock"));
	WT_RET(__wt_spin_init(
	    session, &conn->lsm_manager.switch_lock, "LSM switch queue lock"));
	WT_RET(__wt_cond_alloc(
	    session, "LSM worker cond", &conn->lsm_manager.work_cond));

	/* Initialize the generation manager. */
	__wt_gen_init(session);

	/*
	 * Block manager.
	 * XXX
	 * If there's ever a second block manager, we'll want to make this
	 * more opaque, but for now this is simpler.
	 */
	WT_RET(__wt_spin_init(session, &conn->block_lock, "block manager"));
	for (i = 0; i < WT_HASH_ARRAY_SIZE; i++)
		TAILQ_INIT(&conn->blockhash[i]);/* Block handle hash lists */
	TAILQ_INIT(&conn->blockqh);		/* Block manager list */

	return (0);
}