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/******************************************************************************
*
* Project: MapServer
* Purpose: Multithreading / locking related declarations.
* Author: Frank Warmerdam <warmerdam@pobox.com>
*
******************************************************************************
* Copyright (c) 1996-2005 Regents of the University of Minnesota.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of this Software or works derived from this Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
******************************************************************************
*
* $Log: mapthread.h,v $
* Revision 1.13 2006/08/16 13:27:59 dan
* Added TLOCK_TMPFILE (bug 1322)
*
* Revision 1.12 2006/07/05 05:54:53 frank
* implement per-thread io contexts
*
* Revision 1.11 2005/10/29 02:03:43 jani
* MS RFC 8: Pluggable External Feature Layer Providers (bug 1477).
*
* Revision 1.10 2005/07/15 13:36:46 frank
* Added comment on lock_names[] in mapthread.c.
*
* Revision 1.9 2005/07/14 21:20:44 hobu
* added TLOCK_OWS definition
*
* Revision 1.8 2005/07/07 14:38:00 frank
* added TLOCK_ORACLE and TLOCK_SDE definitions
*
* Revision 1.7 2005/06/14 16:03:35 dan
* Updated copyright date to 2005
*
* Revision 1.6 2005/02/02 17:42:55 frank
* added TLOCK_POOL
*
* Revision 1.5 2005/01/28 06:16:54 sdlime
* Applied patch to make function prototypes ANSI C compliant. Thanks to Petter Reinholdtsen. This fixes but 1181.
*
* Revision 1.4 2004/10/21 04:30:55 frank
* Added standardized headers. Added MS_CVSID().
*
*/
#ifndef MAPTHREAD_H
#define MAPTHREAD_H
#ifdef __cplusplus
extern "C" {
#endif
#ifdef USE_THREAD
void msThreadInit(void);
int msGetThreadId(void);
void msAcquireLock(int);
void msReleaseLock(int);
#else
#define msThreadInit()
#define msGetThreadId() (0)
#define msAcquireLock(x)
#define msReleaseLock(x)
#endif
/*
** lock ids - note there is a corresponding lock_names[] array in
** mapthread.c that needs to be extended when new ids are added.
*/
#define TLOCK_PARSER 1
#define TLOCK_GDAL 2
#define TLOCK_ERROROBJ 3
#define TLOCK_PROJ 4
#define TLOCK_TTF 5
#define TLOCK_POOL 6
#define TLOCK_SDE 7
#define TLOCK_ORACLE 8
#define TLOCK_OWS 9
#define TLOCK_LAYER_VTABLE 10
#define TLOCK_IOCONTEXT 11
#define TLOCK_TMPFILE 12
#define TLOCK_STATIC_MAX 20
#define TLOCK_MAX 100
#ifdef __cplusplus
}
#endif
#endif /* MAPTHREAD_H */
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