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Diffstat (limited to 'src/mesa/glapi/glthread.h')
-rw-r--r-- | src/mesa/glapi/glthread.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/mesa/glapi/glthread.h b/src/mesa/glapi/glthread.h new file mode 100644 index 00000000000..c1b9f9df355 --- /dev/null +++ b/src/mesa/glapi/glthread.h @@ -0,0 +1,145 @@ +/* $Id: glthread.h,v 1.1 1999/12/16 17:31:06 brianp Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.3 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * 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 or substantial portions of the 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 + * BRIAN PAUL 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. + */ + + +/* + * Thread support for gl dispatch. + * + * Initial version by John Stone ([email protected]) ([email protected]) + * and Christoph Poliwoda ([email protected]) + * Revised by Keith Whitwell + * Adapted for new gl dispatcher by Brian Paul + */ + + + +/* + * If this file is accidentally included by a non-threaded build, + * it should not cause the build to fail, or otherwise cause problems. + * In general, it should only be included when needed however. + */ +#ifdef THREADS +/* + * It is an error not to select a specific threads API when compiling. + */ +#if !defined(PTHREADS) && !defined(SOLARIS_THREADS) && !defined(WIN32) +#error One of PTHREADS, SOLARIS_THREADS or WIN32 must be defined. +#endif + + + +/* + * POSIX threads. This should be your choice in the Unix world + * whenever possible. When building with POSIX threads, be sure + * to enable any compiler flags which will cause the MT-safe + * libc (if one exists) to be used when linking, as well as any + * header macros for MT-safe errno, etc. For Solaris, this is the -mt + * compiler flag. On Solaris with gcc, use -D_REENTRANT to enable + * proper compiling for MT-safe libc etc. + */ +#ifdef PTHREADS +#include <pthread.h> /* POSIX threads headers */ + +typedef struct { + pthread_key_t key; + pthread_once_t once; +} _glthread_TSD; + +typedef pthread_mutex_t _glthread_Mutex; +typedef pthread_t _glthread_Thread; + +#endif /* PTHREADS */ + + + + +/* + * Solaris threads. Use only up to Solaris 2.4. + * Solaris 2.5 and higher provide POSIX threads. + * Be sure to compile with -mt on the Solaris compilers, or + * use -D_REENTRANT if using gcc. + */ +#ifdef SOLARIS_THREADS +#include <thread.h> + +typedef struct { + thread_key_t key; + mutex_t keylock; + int initfuncCalled; +} _glthread_TSD; + +typedef mutex_t _glthread_Mutex; +typedef thread_t _glthread_Thread; + +#endif /* SOLARIS_THREADS */ + + + + +/* + * Windows threads. Should work with Windows NT and 95. + * IMPORTANT: Link with multithreaded runtime library when THREADS are + * used! + */ + +#ifdef WIN32 +#include <windows.h> + +typedef struct { + DWORD key; + int initfuncCalled; +} _glthread_TSD; + +typedef CRITICAL_SECTION _glthread_Mutex; +typedef HANDLE _glthread_Thread; + +#endif /* WIN32 */ + + + + +/* + * Platform independent thread specific data API. + */ + +extern unsigned long +_glthread_GetID(void); + + +extern void +_glthread_InitTSD(_glthread_TSD *); + + +extern void * +_glthread_GetTSD(_glthread_TSD *); + + +extern void +_glthread_SetTSD(_glthread_TSD *, void *, void (*initfunc)(void)); + + + +#endif |