-/* $Id: glthread.h,v 1.3 2000/02/10 21:27:25 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.3
- *
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
- *
+ * Version: 6.5.2
+ *
+ * Copyright (C) 1999-2006 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
*
*/
+/*
+ * 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 GLTHREAD_H
#define GLTHREAD_H
-/*
- * 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) && !defined(XTHREADS)
-#error One of PTHREADS, SOLARIS_THREADS, WIN32 or XTHREADS must be defined.
+#if defined(USE_MGL_NAMESPACE)
+#define _glapi_Dispatch _mglapi_Dispatch
#endif
+#if (defined(PTHREADS) || defined(SOLARIS_THREADS) ||\
+ defined(WIN32_THREADS) || 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
* compiler flag. On Solaris with gcc, use -D_REENTRANT to enable
* proper compiling for MT-safe libc etc.
*/
-#ifdef PTHREADS
+#if defined(PTHREADS)
#include <pthread.h> /* POSIX threads headers */
typedef struct {
#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 */
+typedef pthread_cond_t _glthread_Cond;
+
+#define _glthread_DECLARE_STATIC_COND(name) \
+ static _glthread_Cond name = PTHREAD_COND_INITIALIZER
+
+#define _glthread_INIT_COND(cond) \
+ pthread_cond_init(&(cond), NULL)
+
+#define _glthread_DESTROY_COND(name) \
+ pthread_cond_destroy(&(name))
+
+#define _glthread_COND_WAIT(cond, mutex) \
+ pthread_cond_wait(&(cond), &(mutex))
+#define _glthread_COND_SIGNAL(cond) \
+ pthread_cond_signal(&(cond))
+#define _glthread_COND_BROADCAST(cond) \
+ pthread_cond_broadcast(&(cond))
+
+
+#else /* PTHREADS */
+
+typedef unsigned int _glthread_Cond;
+#define _glthread_DECLARE_STATIC_COND(name) \
+// #warning Condition variables not implemented.
+
+#define _glthread_INIT_COND(cond) \
+ ASSERT(0);
+
+#define _glthread_DESTROY_COND(name) \
+ ASSERT(0);
+
+#define _glthread_COND_WAIT(cond, mutex) \
+ ASSERT(0);
+
+#define _glthread_COND_SIGNAL(cond) \
+ ASSERT(0);
+
+#define _glthread_COND_BROADCAST(cond) \
+ ASSERT(0);
+
+#endif
/*
- * Solaris threads. Use only up to Solaris 2.4.
+ * 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
+ * Be sure to compile with -mt on the Solaris compilers, or
* use -D_REENTRANT if using gcc.
*/
#ifdef SOLARIS_THREADS
/* 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
/*
- * Windows threads. Should work with Windows NT and 95.
+ * Windows threads. Should work with Windows NT and 95.
* IMPORTANT: Link with multithreaded runtime library when THREADS are
* used!
*/
-#ifdef WIN32
+#ifdef WIN32_THREADS
#include <windows.h>
typedef struct {
typedef CRITICAL_SECTION _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_LOCK_MUTEX(name) (void) name
-#define _glthread_UNLOCK_MUTEX(name) (void) name
-
-#endif /* WIN32 */
-
+#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 */
/*
- * XFree86 has its own thread wrapper, Xthreads.h
- * We wrap it again for GL.
+ * BeOS threads. R5.x required.
*/
-#ifdef XTHREADS
-#include "Xthreads.h"
-
-typedef struct {
- xthread_key_t key;
- int initMagic;
-} _glthread_TSD;
+#ifdef BEOS_THREADS
-typedef xthread_t _glthread_Thread;
+/* Problem with OS.h and this file on haiku */
+#ifndef __HAIKU__
+#include <kernel/OS.h>
+#endif
-typedef xmutex_rec _glthread_Mutex;
+#include <support/TLS.h>
-#define _glthread_DECLARE_STATIC_MUTEX(name) \
- static _glthread_Mutex name = XMUTEX_INITIALIZER
+/* The only two typedefs required here
+ * this is cause of the OS.h problem
+ */
+#ifdef __HAIKU__
+typedef int32 thread_id;
+typedef int32 sem_id;
+#endif
-#define _glthread_INIT_MUTEX(name) \
- xmutex_init(&(name))
+typedef struct {
+ int32 key;
+ int initMagic;
+} _glthread_TSD;
-#define _glthread_LOCK_MUTEX(name) \
- (void) xmutex_lock(&(name))
+typedef thread_id _glthread_Thread;
-#define _glthread_UNLOCK_MUTEX(name) \
- (void) xmutex_unlock(&(name))
+/* Use Benaphore, aka speeder semaphore */
+typedef struct {
+ int32 lock;
+ sem_id sem;
+} benaphore;
+typedef benaphore _glthread_Mutex;
-#endif /* XTHREADS */
+#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 */
-#else /* THREADS */
+#ifndef THREADS
/*
* THREADS not defined
*/
-typedef GLuint _glthread_TSD;
+typedef unsigned _glthread_TSD;
-typedef GLuint _glthread_Thread;
+typedef unsigned _glthread_Thread;
-typedef GLuint _glthread_Mutex;
+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.
+ * Platform independent thread specific data API.
*/
extern unsigned long
extern void
_glthread_SetTSD(_glthread_TSD *, void *);
+#if !defined __GNUC__ || __GNUC__ < 3
+# define __builtin_expect(x, y) x
+#endif
+#if defined(GLX_USE_TLS)
+extern __thread struct _glapi_table * _glapi_tls_Dispatch
+ __attribute__((tls_model("initial-exec")));
-#endif /* THREADS_H */
+#define GET_DISPATCH() _glapi_tls_Dispatch
+#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 /* THREADS_H */
projects / mesa.git / blobdiff