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  • Committer: Stewart Smith
  • Date: 2010-04-09 07:57:43 UTC
  • Revision ID: stewart@flamingspork.com-20100409075743-jfh1oml3el1uouvh
Embedded InnoDB 1.0.0 released

2009-04-21      The InnoDB Team

        Embedded InnoDB 1.0.0 released

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include/os0sync.ic
 
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/*****************************************************************************
 
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Copyright (c) 1995, 2009, Innobase Oy. All Rights Reserved.
 
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This program is free software; you can redistribute it and/or modify it under
 
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the terms of the GNU General Public License as published by the Free Software
 
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Foundation; version 2 of the License.
 
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This program is distributed in the hope that it will be useful, but WITHOUT
 
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 
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You should have received a copy of the GNU General Public License along with
 
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 
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Place, Suite 330, Boston, MA 02111-1307 USA
 
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*****************************************************************************/
 
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/******************************************************
 
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The interface to the operating system synchronization primitives.
 
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Created 9/6/1995 Heikki Tuuri
 
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*******************************************************/
 
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#ifdef __WIN__
 
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#include <winbase.h>
 
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#else
 
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#include <pthread.h>
 
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#endif
 
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/**************************************************************
 
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Acquires ownership of a fast mutex. Currently in Windows this is the same
 
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as os_fast_mutex_lock! */
 
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UNIV_INLINE
 
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ulint
 
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os_fast_mutex_trylock(
 
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/*==================*/
 
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                                                /* out: 0 if success, != 0 if
 
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                                                was reserved by another
 
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                                                thread */
 
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        os_fast_mutex_t*        fast_mutex)     /* in: mutex to acquire */
 
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{
 
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#ifdef __WIN__
 
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        EnterCriticalSection(fast_mutex);
 
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        return(0);
 
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#else
 
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        return((ulint) pthread_mutex_trylock(fast_mutex));
 
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#endif
 
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}