diff options
author | José Fonseca <[email protected]> | 2008-02-19 15:07:53 +0900 |
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committer | José Fonseca <[email protected]> | 2008-02-19 15:07:53 +0900 |
commit | b9da3791c934e05b82063a8c79c423a0a8e29a94 (patch) | |
tree | 2dce15e3f3d6df353a7f144afa9acb78c177ee5f /src/gallium/include/pipe/p_thread.h | |
parent | 5d78212d752e021555356bbb9cc5993ad6d9e847 (diff) |
Remove src/mesa and src/mesa/main from gallium source include paths.
Diffstat (limited to 'src/gallium/include/pipe/p_thread.h')
-rw-r--r-- | src/gallium/include/pipe/p_thread.h | 327 |
1 files changed, 295 insertions, 32 deletions
diff --git a/src/gallium/include/pipe/p_thread.h b/src/gallium/include/pipe/p_thread.h index cd432c547ce..4325abc951e 100644 --- a/src/gallium/include/pipe/p_thread.h +++ b/src/gallium/include/pipe/p_thread.h @@ -1,54 +1,317 @@ /************************************************************************** * + * Copyright 1999-2006 Brian Paul * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. * 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, sub license, 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 (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * + * 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. + * 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. * **************************************************************************/ -#ifndef P_THREAD_H -#define P_THREAD_H +/** + * @file + * Thread + * + * 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 + * + * + * + * DOCUMENTATION + * + * This thread module exports the following types: + * _glthread_TSD Thread-specific data area + * _glthread_Thread Thread datatype + * _glthread_Mutex Mutual exclusion lock + * + * Macros: + * _glthread_DECLARE_STATIC_MUTEX(name) Declare a non-local mutex + * _glthread_INIT_MUTEX(name) Initialize a mutex + * _glthread_LOCK_MUTEX(name) Lock a mutex + * _glthread_UNLOCK_MUTEX(name) Unlock a mutex + * + * Functions: + * _glthread_GetID(v) Get integer thread ID + * _glthread_InitTSD() Initialize thread-specific data + * _glthread_GetTSD() Get thread-specific data + * _glthread_SetTSD() Set thread-specific data + * + * 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. + */ + +#ifndef _P_THREAD_H_ +#define _P_THREAD_H_ + + +#if defined(USE_MGL_NAMESPACE) +#define _glapi_Dispatch _mglapi_Dispatch +#endif + + + +#if (defined(PTHREADS) || defined(SOLARIS_THREADS) ||\ + defined(WIN32_THREADS) || defined(USE_XTHREADS) || defined(BEOS_THREADS)) \ + && !defined(THREADS) +# define THREADS +#endif + +#ifdef VMS +#include <GL/vms_x_fix.h> +#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. + */ +#if defined(PTHREADS) +#include <pthread.h> /* POSIX threads headers */ + +typedef struct { + pthread_key_t key; + int initMagic; +} _glthread_TSD; + +typedef pthread_t _glthread_Thread; + +typedef pthread_mutex_t _glthread_Mutex; + +#define _glthread_DECLARE_STATIC_MUTEX(name) \ + static _glthread_Mutex name = PTHREAD_MUTEX_INITIALIZER + +#define _glthread_INIT_MUTEX(name) \ + pthread_mutex_init(&(name), NULL) + +#define _glthread_DESTROY_MUTEX(name) \ + pthread_mutex_destroy(&(name)) + +#define _glthread_LOCK_MUTEX(name) \ + (void) pthread_mutex_lock(&(name)) + +#define _glthread_UNLOCK_MUTEX(name) \ + (void) pthread_mutex_unlock(&(name)) + +#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 initMagic; +} _glthread_TSD; + +typedef thread_t _glthread_Thread; + +typedef mutex_t _glthread_Mutex; + +/* XXX need to really implement mutex-related macros */ +#define _glthread_DECLARE_STATIC_MUTEX(name) static _glthread_Mutex name = 0 +#define _glthread_INIT_MUTEX(name) (void) name +#define _glthread_DESTROY_MUTEX(name) (void) name +#define _glthread_LOCK_MUTEX(name) (void) name +#define _glthread_UNLOCK_MUTEX(name) (void) name + +#endif /* SOLARIS_THREADS */ + + + + +/* + * Windows threads. Should work with Windows NT and 95. + * IMPORTANT: Link with multithreaded runtime library when THREADS are + * used! + */ +#ifdef WIN32_THREADS +#include <windows.h> + +typedef struct { + DWORD key; + int initMagic; +} _glthread_TSD; + +typedef HANDLE _glthread_Thread; + +typedef CRITICAL_SECTION _glthread_Mutex; + +#define _glthread_DECLARE_STATIC_MUTEX(name) /*static*/ _glthread_Mutex name = {0,0,0,0,0,0} +#define _glthread_INIT_MUTEX(name) InitializeCriticalSection(&name) +#define _glthread_DESTROY_MUTEX(name) DeleteCriticalSection(&name) +#define _glthread_LOCK_MUTEX(name) EnterCriticalSection(&name) +#define _glthread_UNLOCK_MUTEX(name) LeaveCriticalSection(&name) + +#endif /* WIN32_THREADS */ + + -#include "p_compiler.h" /* - * XXX: We should come up with a system-independent thread definitions. - * XXX: Patching glthread defs for now. + * XFree86 has its own thread wrapper, Xthreads.h + * We wrap it again for GL. */ +#ifdef USE_XTHREADS +#include <X11/Xthreads.h> + +typedef struct { + xthread_key_t key; + int initMagic; +} _glthread_TSD; + +typedef xthread_t _glthread_Thread; + +typedef xmutex_rec _glthread_Mutex; + +#ifdef XMUTEX_INITIALIZER +#define _glthread_DECLARE_STATIC_MUTEX(name) \ + static _glthread_Mutex name = XMUTEX_INITIALIZER +#else +#define _glthread_DECLARE_STATIC_MUTEX(name) \ + static _glthread_Mutex name +#endif + +#define _glthread_INIT_MUTEX(name) \ + xmutex_init(&(name)) + +#define _glthread_DESTROY_MUTEX(name) \ + xmutex_clear(&(name)) + +#define _glthread_LOCK_MUTEX(name) \ + (void) xmutex_lock(&(name)) + +#define _glthread_UNLOCK_MUTEX(name) \ + (void) xmutex_unlock(&(name)) + +#endif /* USE_XTHREADS */ + + + +/* + * BeOS threads. R5.x required. + */ +#ifdef BEOS_THREADS + +#include <kernel/OS.h> +#include <support/TLS.h> + +typedef struct { + int32 key; + int initMagic; +} _glthread_TSD; + +typedef thread_id _glthread_Thread; + +/* Use Benaphore, aka speeder semaphore */ +typedef struct { + int32 lock; + sem_id sem; +} benaphore; +typedef benaphore _glthread_Mutex; + +#define _glthread_DECLARE_STATIC_MUTEX(name) static _glthread_Mutex name = { 0, 0 } +#define _glthread_INIT_MUTEX(name) name.sem = create_sem(0, #name"_benaphore"), name.lock = 0 +#define _glthread_DESTROY_MUTEX(name) delete_sem(name.sem), name.lock = 0 +#define _glthread_LOCK_MUTEX(name) if (name.sem == 0) _glthread_INIT_MUTEX(name); \ + if (atomic_add(&(name.lock), 1) >= 1) acquire_sem(name.sem) +#define _glthread_UNLOCK_MUTEX(name) if (atomic_add(&(name.lock), -1) > 1) release_sem(name.sem) + +#endif /* BEOS_THREADS */ + + + +#ifndef THREADS + +/* + * THREADS not defined + */ + +typedef unsigned _glthread_TSD; + +typedef unsigned _glthread_Thread; + +typedef unsigned _glthread_Mutex; + +#define _glthread_DECLARE_STATIC_MUTEX(name) static _glthread_Mutex name = 0 + +#define _glthread_INIT_MUTEX(name) (void) name + +#define _glthread_DESTROY_MUTEX(name) (void) name + +#define _glthread_LOCK_MUTEX(name) (void) name + +#define _glthread_UNLOCK_MUTEX(name) (void) name + +#endif /* THREADS */ + + + +/* + * Platform independent thread specific data API. + */ + +extern unsigned long +_glthread_GetID(void); + + +extern void +_glthread_InitTSD(_glthread_TSD *); + + +extern void * +_glthread_GetTSD(_glthread_TSD *); -#ifndef __MSC__ -#include "glapi/glthread.h" +extern void +_glthread_SetTSD(_glthread_TSD *, void *); -#else /* __MSC__ */ +#if defined(GLX_USE_TLS) -typedef int _glthread_Mutex; +extern __thread struct _glapi_table * _glapi_tls_Dispatch + __attribute__((tls_model("initial-exec"))); -#define _glthread_INIT_MUTEX( M ) ((void) (M)) -#define _glthread_LOCK_MUTEX( M ) ((void) (M)) -#define _glthread_UNLOCK_MUTEX( M ) ((void) (M)) +#define GET_DISPATCH() _glapi_tls_Dispatch -#define sched_yield() ((void) 0) +#elif !defined(GL_CALL) +# if defined(THREADS) +# define GET_DISPATCH() \ + ((__builtin_expect( _glapi_Dispatch != NULL, 1 )) \ + ? _glapi_Dispatch : _glapi_get_dispatch()) +# else +# define GET_DISPATCH() _glapi_Dispatch +# endif /* defined(THREADS) */ +#endif /* ndef GL_CALL */ -#endif /* __MSC__ */ -#endif /* P_THREAD_H */ +#endif /* _P_THREAD_H_ */ |