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69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/*
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* PROGRAM: JRD access method
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* MODULE: thd.h
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* DESCRIPTION: Thread support definitions
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*
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* The contents of this file are subject to the Interbase Public
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* License Version 1.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy
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* of the License at http://www.Inprise.com/IPL.html
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*
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* Software distributed under the License is distributed on an
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* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code was created by Inprise Corporation
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* and its predecessors. Portions created by Inprise Corporation are
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* Copyright (C) Inprise Corporation.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*
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* 2002.10.28 Sean Leyne - Completed removal of obsolete "DGUX" port
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*
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* 2002.10.29 Sean Leyne - Removed obsolete "Netware" port
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*
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* Alex Peshkov
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*/
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#ifndef JRD_THD_H
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#define JRD_THD_H
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#include "firebird.h"
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#include "../jrd/isc.h"
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#include "../common/classes/locks.h"
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#include "../common/classes/rwlock.h"
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// thread run-ability control
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void THD_sleep(ULONG);
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void THD_yield();
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// thread ID
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FB_THREAD_ID getThreadId();
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/* Thread quanta */
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const int QUANTUM = 100; /* Default quantum */
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const int SWEEP_QUANTUM = 10; /* Make sweeps less disruptive */
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/* Recursive mutex structure */
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struct rec_mutx_t {
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Firebird::Mutex rec_mutx_mtx;
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FB_THREAD_ID rec_mutx_id;
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SLONG rec_mutx_count;
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rec_mutx_t()
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: rec_mutx_id(0), rec_mutx_count(0)
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{}
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};
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typedef rec_mutx_t REC_MUTX_T;
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int THD_rec_mutex_lock(struct rec_mutx_t*);
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int THD_rec_mutex_unlock(struct rec_mutx_t*);
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#endif // JRD_THD_H
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