f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Mesa 3-D graphics library
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Version: 6.5.2
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Permission is hereby granted, free of charge, to any person obtaining a
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * copy of this software and associated documentation files (the "Software"),
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * to deal in the Software without restriction, including without limitation
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * the rights to use, copy, modify, merge, publish, distribute, sublicense,
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * and/or sell copies of the Software, and to permit persons to whom the
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Software is furnished to do so, subject to the following conditions:
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * The above copyright notice and this permission notice shall be included
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * in all copies or substantial portions of the Software.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Thread support for gl dispatch.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Initial version by John Stone (j.stone@acm.org) (johns@cs.umr.edu)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * and Christoph Poliwoda (poliwoda@volumegraphics.com)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Revised by Keith Whitwell
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Adapted for new gl dispatcher by Brian Paul
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * DOCUMENTATION
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * This thread module exports the following types:
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_TSD Thread-specific data area
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_Thread Thread datatype
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_Mutex Mutual exclusion lock
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_DECLARE_STATIC_MUTEX(name) Declare a non-local mutex
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_INIT_MUTEX(name) Initialize a mutex
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_LOCK_MUTEX(name) Lock a mutex
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_UNLOCK_MUTEX(name) Unlock a mutex
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Functions:
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_GetID(v) Get integer thread ID
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_InitTSD() Initialize thread-specific data
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_GetTSD() Get thread-specific data
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * _glthread_SetTSD() Set thread-specific data
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * If this file is accidentally included by a non-threaded build,
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * it should not cause the build to fail, or otherwise cause problems.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * In general, it should only be included when needed however.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync && !defined(THREADS)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * POSIX threads. This should be your choice in the Unix world
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * whenever possible. When building with POSIX threads, be sure
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * to enable any compiler flags which will cause the MT-safe
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * libc (if one exists) to be used when linking, as well as any
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * header macros for MT-safe errno, etc. For Solaris, this is the -mt
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * compiler flag. On Solaris with gcc, use -D_REENTRANT to enable
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * proper compiling for MT-safe libc etc.
f0ab104f070bc7f569404826fea1828ed985638cvboxsynctypedef struct {
f0ab104f070bc7f569404826fea1828ed985638cvboxsync static _glthread_Mutex name = PTHREAD_MUTEX_INITIALIZER
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif /* PTHREADS */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Solaris threads. Use only up to Solaris 2.4.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Solaris 2.5 and higher provide POSIX threads.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Be sure to compile with -mt on the Solaris compilers, or
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * use -D_REENTRANT if using gcc.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Windows threads. Should work with Windows NT and 95.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * IMPORTANT: Link with multithreaded runtime library when THREADS are
f0ab104f070bc7f569404826fea1828ed985638cvboxsynctypedef struct {
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_DECLARE_STATIC_MUTEX(name) /*static*/ _glthread_Mutex name = {0,0,0,0,0,0}
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_INIT_MUTEX(name) InitializeCriticalSection(&name)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_DESTROY_MUTEX(name) DeleteCriticalSection(&name)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_LOCK_MUTEX(name) EnterCriticalSection(&name)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_UNLOCK_MUTEX(name) LeaveCriticalSection(&name)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif /* WIN32_THREADS */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * BeOS threads. R5.x required.
f0ab104f070bc7f569404826fea1828ed985638cvboxsynctypedef struct {
f0ab104f070bc7f569404826fea1828ed985638cvboxsync/* Use Benaphore, aka speeder semaphore */
f0ab104f070bc7f569404826fea1828ed985638cvboxsynctypedef struct {
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_DECLARE_STATIC_MUTEX(name) static _glthread_Mutex name = { 0, 0 }
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_INIT_MUTEX(name) name.sem = create_sem(0, #name"_benaphore"), name.lock = 0
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_DESTROY_MUTEX(name) delete_sem(name.sem), name.lock = 0
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_LOCK_MUTEX(name) if (name.sem == 0) _glthread_INIT_MUTEX(name); \
f0ab104f070bc7f569404826fea1828ed985638cvboxsync if (atomic_add(&(name.lock), 1) >= 1) acquire_sem(name.sem)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_UNLOCK_MUTEX(name) if (atomic_add(&(name.lock), -1) > 1) release_sem(name.sem)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif /* BEOS_THREADS */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * THREADS not defined
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#define _glthread_DECLARE_STATIC_MUTEX(name) static _glthread_Mutex name = 0
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif /* THREADS */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Platform independent thread specific data API.
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncextern unsigned long
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncextern void *
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncextern TLS struct _glapi_table * _glapi_tls_Dispatch;
f0ab104f070bc7f569404826fea1828ed985638cvboxsync# if defined(THREADS)
f0ab104f070bc7f569404826fea1828ed985638cvboxsync ((__builtin_expect( _glapi_Dispatch != NULL, 1 )) \
f0ab104f070bc7f569404826fea1828ed985638cvboxsync# endif /* defined(THREADS) */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif /* ndef GL_CALL */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync#endif /* THREADS_H */