74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _SYS_TXG_IMPL_H
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#define _SYS_TXG_IMPL_H
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#include <sys/spa.h>
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#include <sys/txg.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct tx_cpu {
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kmutex_t tc_lock;
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kcondvar_t tc_cv[TXG_SIZE];
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uint64_t tc_count[TXG_SIZE];
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char tc_pad[16];
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};
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typedef struct tx_state {
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tx_cpu_t *tx_cpu; /* protects right to enter txg */
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kmutex_t tx_sync_lock; /* protects tx_state_t */
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krwlock_t tx_suspend;
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uint64_t tx_open_txg; /* currently open txg id */
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uint64_t tx_quiesced_txg; /* quiesced txg waiting for sync */
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uint64_t tx_syncing_txg; /* currently syncing txg id */
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uint64_t tx_synced_txg; /* last synced txg id */
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uint64_t tx_sync_txg_waiting; /* txg we're waiting to sync */
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uint64_t tx_quiesce_txg_waiting; /* txg we're waiting to open */
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kcondvar_t tx_sync_more_cv;
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kcondvar_t tx_sync_done_cv;
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kcondvar_t tx_quiesce_more_cv;
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kcondvar_t tx_quiesce_done_cv;
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kcondvar_t tx_timeout_cv;
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kcondvar_t tx_exit_cv; /* wait for all threads to exit */
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uint8_t tx_threads; /* number of threads */
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uint8_t tx_exiting; /* set when we're exiting */
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kthread_t *tx_sync_thread;
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kthread_t *tx_quiesce_thread;
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} tx_state_t;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_TXG_IMPL_H */
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