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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_TXG_IMPL_H
#define _SYS_TXG_IMPL_H
#include <sys/spa.h>
#include <sys/txg.h>
#ifdef __cplusplus
extern "C" {
#endif
struct tx_cpu {
kmutex_t tc_lock;
kcondvar_t tc_cv[TXG_SIZE];
uint64_t tc_count[TXG_SIZE];
list_t tc_callbacks[TXG_SIZE]; /* commit cb list */
char tc_pad[16];
};
typedef struct tx_state {
tx_cpu_t *tx_cpu; /* protects right to enter txg */
kmutex_t tx_sync_lock; /* protects tx_state_t */
uint64_t tx_open_txg; /* currently open txg id */
uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */
uint64_t tx_syncing_txg; /* currently syncing txg id */
uint64_t tx_synced_txg; /* last synced txg id */
uint64_t tx_sync_txg_waiting; /* txg we're waiting to sync */
uint64_t tx_quiesce_txg_waiting; /* txg we're waiting to open */
kcondvar_t tx_sync_more_cv;
kcondvar_t tx_sync_done_cv;
kcondvar_t tx_quiesce_more_cv;
kcondvar_t tx_quiesce_done_cv;
kcondvar_t tx_timeout_cv;
kcondvar_t tx_exit_cv; /* wait for all threads to exit */
uint8_t tx_threads; /* number of threads */
uint8_t tx_exiting; /* set when we're exiting */
kthread_t *tx_sync_thread;
kthread_t *tx_quiesce_thread;
taskq_t *tx_commit_cb_taskq; /* commit callback taskq */
} tx_state_t;
#ifdef __cplusplus
}
#endif
#endif /* _SYS_TXG_IMPL_H */
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