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6561bd1af8
svn merge -r 11048:11110 ../tokudb.1510 git-svn-id: file:///svn/toku/tokudb@11112 c7de825b-a66e-492c-adef-691d508d4ae1
53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
/* -*- mode: C; c-basic-offset: 4 -*- */
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#ident "Copyright (c) 2009 Tokutek Inc. All rights reserved."
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#ident "The technology is licensed by the Massachusetts Institute of Technology, Rutgers State University of New Jersey, and the Research Foundation of State University of New York at Stony Brook under United States of America Serial No. 11/760379 and to the patents and/or patent applications resulting from it."
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#ident "$Id$"
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/******
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*
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* NOTE: multi_operation_lock is highest level lock
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* checkpoint_safe_lock is next level lock
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* ydb_big_lock is next level lock
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*
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* Locks must always be taken in this sequence (highest level first).
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*
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*/
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/******
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* Client code must hold the checkpoint_safe lock during the following operations:
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* - delete a dictionary via DB->remove
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* - delete a dictionary via DB_TXN->abort(txn) (where txn created a dictionary)
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* - rename a dictionary //TODO: Handlerton rename needs to take this
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* //TODO: Handlerton rename needs to be recoded for transaction recovery
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*****/
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void toku_checkpoint_safe_client_lock(void);
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void toku_checkpoint_safe_client_unlock(void);
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/******
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* These functions are called from the ydb level.
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* Client code must hold the multi_operation lock during the following operations:
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* - insertion into multiple indexes
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* - replace into (simultaneous delete/insert on a single key)
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*****/
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void toku_multi_operation_client_lock(void);
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void toku_multi_operation_client_unlock(void);
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// Initialize the checkpoint mechanism, must be called before any client operations.
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// Must pass in function pointers to take/release ydb lock.
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void toku_checkpoint_init(void (*ydb_lock_callback)(void), void (*ydb_unlock_callback)(void));
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void toku_checkpoint_destroy(void);
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// Take a checkpoint of all currently open dictionaries
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int toku_checkpoint(CACHETABLE ct, TOKULOGGER logger, char **error_string);
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