Xthreads.h
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Visual C++
- /*
- * $Xorg: Xthreads.h,v 1.5 2001/02/09 02:03:23 xorgcvs Exp $
- *
- *
- Copyright 1993, 1998 The Open Group
- Permission to use, copy, modify, distribute, and sell this software and its
- documentation for any purpose is hereby granted without fee, provided that
- the above copyright notice appear in all copies and that both that
- copyright notice and this permission notice appear in supporting
- documentation.
- 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 THE
- OPEN GROUP 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.
- Except as contained in this notice, the name of The Open Group shall not be
- used in advertising or otherwise to promote the sale, use or other dealings
- in this Software without prior written authorization from The Open Group.
- * *
- */
- /* $XFree86: Xthreads.h,v 3.10 2001/12/14 19:53:26 dawes Exp $ */
- #ifndef _XTHREADS_H_
- #define _XTHREADS_H_
- /* Redefine these to XtMalloc/XtFree or whatever you want before including
- * this header file.
- */
- #ifndef xmalloc
- #define xmalloc malloc
- #endif
- #ifndef xfree
- #define xfree free
- #endif
- #ifdef CTHREADS
- #include <cthreads.h>
- typedef cthread_t xthread_t;
- typedef struct condition xcondition_rec;
- typedef struct mutex xmutex_rec;
- #define xthread_init() cthread_init()
- #define xthread_self cthread_self
- #define xthread_fork(func,closure) cthread_fork(func,closure)
- #define xthread_yield() cthread_yield()
- #define xthread_exit(v) cthread_exit(v)
- #define xthread_set_name(t,str) cthread_set_name(t,str)
- #define xmutex_init(m) mutex_init(m)
- #define xmutex_clear(m) mutex_clear(m)
- #define xmutex_lock(m) mutex_lock(m)
- #define xmutex_unlock(m) mutex_unlock(m)
- #define xmutex_set_name(m,str) mutex_set_name(m,str)
- #define xcondition_init(cv) condition_init(cv)
- #define xcondition_clear(cv) condition_clear(cv)
- #define xcondition_wait(cv,m) condition_wait(cv,m)
- #define xcondition_signal(cv) condition_signal(cv)
- #define xcondition_broadcast(cv) condition_broadcast(cv)
- #define xcondition_set_name(cv,str) condition_set_name(cv,str)
- #else /* !CTHREADS */
- #if defined(SVR4) && !defined(__sgi) && !defined(_SEQUENT_)
- #include <thread.h>
- #include <synch.h>
- typedef thread_t xthread_t;
- typedef thread_key_t xthread_key_t;
- typedef cond_t xcondition_rec;
- typedef mutex_t xmutex_rec;
- #if defined(__UNIXWARE__)
- extern xthread_t (*_x11_thr_self)();
- #define xthread_self (_x11_thr_self)
- #else
- #define xthread_self thr_self
- #endif
- #define xthread_fork(func,closure) thr_create(NULL,0,func,closure,THR_NEW_LWP|THR_DETACHED,NULL)
- #define xthread_yield() thr_yield()
- #define xthread_exit(v) thr_exit(v)
- #define xthread_key_create(kp,d) thr_keycreate(kp,d)
- #ifdef sun
- #define xthread_key_delete(k) 0
- #else
- #define xthread_key_delete(k) thr_keydelete(k)
- #endif
- #define xthread_set_specific(k,v) thr_setspecific(k,v)
- #define xthread_get_specific(k,vp) thr_getspecific(k,vp)
- #define xmutex_init(m) mutex_init(m,USYNC_THREAD,0)
- #define xmutex_clear(m) mutex_destroy(m)
- #define xmutex_lock(m) mutex_lock(m)
- #define xmutex_unlock(m) mutex_unlock(m)
- #define xcondition_init(cv) cond_init(cv,USYNC_THREAD,0)
- #define xcondition_clear(cv) cond_destroy(cv)
- #define xcondition_wait(cv,m) cond_wait(cv,m)
- #define xcondition_signal(cv) cond_signal(cv)
- #define xcondition_broadcast(cv) cond_broadcast(cv)
- #else /* !SVR4 */
- #ifdef WIN32
- #include <X11/Xwindows.h>
- typedef DWORD xthread_t;
- typedef DWORD xthread_key_t;
- struct _xthread_waiter {
- HANDLE sem;
- struct _xthread_waiter *next;
- };
- typedef struct {
- CRITICAL_SECTION cs;
- struct _xthread_waiter *waiters;
- } xcondition_rec;
- typedef CRITICAL_SECTION xmutex_rec;
- #define xthread_init() _Xthread_init()
- #define xthread_self GetCurrentThreadId
- #define xthread_fork(func,closure) {
- DWORD _tmptid;
- CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)func, (LPVOID)closure, 0,
- &_tmptid);
- }
- #define xthread_yield() Sleep(0)
- #define xthread_exit(v) ExitThread((DWORD)(v))
- #define xthread_key_create(kp,d) *(kp) = TlsAlloc()
- #define xthread_key_delete(k) TlsFree(k)
- #define xthread_set_specific(k,v) TlsSetValue(k,v)
- #define xthread_get_specific(k,vp) TlsGetValue(k)
- #define xmutex_init(m) InitializeCriticalSection(m)
- #define xmutex_clear(m) DeleteCriticalSection(m)
- #define _XMUTEX_NESTS
- #define xmutex_lock(m) EnterCriticalSection(m)
- #define xmutex_unlock(m) LeaveCriticalSection(m)
- #define xcondition_init(cv) {
- InitializeCriticalSection(&(cv)->cs);
- (cv)->waiters = NULL;
- }
- #define xcondition_clear(cv) DeleteCriticalSection(&(cv)->cs)
- extern struct _xthread_waiter *_Xthread_waiter();
- #define xcondition_wait(cv,m) {
- struct _xthread_waiter *_tmpthr = _Xthread_waiter();
- EnterCriticalSection(&(cv)->cs);
- _tmpthr->next = (cv)->waiters;
- (cv)->waiters = _tmpthr;
- LeaveCriticalSection(&(cv)->cs);
- LeaveCriticalSection(m);
- WaitForSingleObject(_tmpthr->sem, INFINITE);
- EnterCriticalSection(m);
- }
- #define xcondition_signal(cv) {
- EnterCriticalSection(&(cv)->cs);
- if ((cv)->waiters) {
- ReleaseSemaphore((cv)->waiters->sem, 1, NULL);
- (cv)->waiters = (cv)->waiters->next;
- }
- LeaveCriticalSection(&(cv)->cs);
- }
- #define xcondition_broadcast(cv) {
- struct _xthread_waiter *_tmpthr;
- EnterCriticalSection(&(cv)->cs);
- for (_tmpthr = (cv)->waiters; _tmpthr; _tmpthr = _tmpthr->next)
- ReleaseSemaphore(_tmpthr->sem, 1, NULL);
- (cv)->waiters = NULL;
- LeaveCriticalSection(&(cv)->cs);
- }
- #else /* !WIN32 */
- #ifdef USE_TIS_SUPPORT
- /*
- * TIS support is intended for thread safe libraries.
- * This should not be used for general client programming.
- */
- #include <tis.h>
- typedef pthread_t xthread_t;
- typedef pthread_key_t xthread_key_t;
- typedef pthread_cond_t xcondition_rec;
- typedef pthread_mutex_t xmutex_rec;
- #define xthread_self tis_self
- #define xthread_fork(func,closure) { pthread_t _tmpxthr;
- pthread_create(&_tmpxthr,NULL,func,closure); }
- #define xthread_yield() pthread_yield_np()
- #define xthread_exit(v) pthread_exit(v)
- #define xthread_key_create(kp,d) tis_key_create(kp,d)
- #define xthread_key_delete(k) tis_key_delete(k)
- #define xthread_set_specific(k,v) tis_setspecific(k,v)
- #define xthread_get_specific(k,vp) *(vp) = tis_getspecific(k)
- #define XMUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
- #define xmutex_init(m) tis_mutex_init(m)
- #define xmutex_clear(m) tis_mutex_destroy(m)
- #define xmutex_lock(m) tis_mutex_lock(m)
- #define xmutex_unlock(m) tis_mutex_unlock(m)
- #define xcondition_init(c) tis_cond_init(c)
- #define xcondition_clear(c) tis_cond_destroy(c)
- #define xcondition_wait(c,m) tis_cond_wait(c,m)
- #define xcondition_signal(c) tis_cond_signal(c)
- #define xcondition_broadcast(c) tis_cond_broadcast(c)
- #else
- #ifdef USE_NBSD_THREADLIB
- /*
- * NetBSD threadlib support is intended for thread safe libraries.
- * This should not be used for general client programming.
- */
- #include <threadlib.h>
- typedef thr_t xthread_t;
- typedef thread_key_t xthread_key_t;
- typedef cond_t xcondition_rec;
- typedef mutex_t xmutex_rec;
- #define xthread_self thr_self
- #define xthread_fork(func,closure) { thr_t _tmpxthr;
- /* XXX Create it detached? --thorpej */
- thr_create(&_tmpxthr,NULL,func,closure); }
- #define xthread_yield() thr_yield()
- #define xthread_exit(v) thr_exit(v)
- #define xthread_key_create(kp,d) thr_keycreate(kp,d)
- #define xthread_key_delete(k) thr_keydelete(k)
- #define xthread_set_specific(k,v) thr_setspecific(k,v)
- #define xthread_get_specific(k,vp) *(vp) = thr_getspecific(k)
- #define XMUTEX_INITIALIZER MUTEX_INITIALIZER
- #define xmutex_init(m) mutex_init(m, 0)
- #define xmutex_clear(m) mutex_destroy(m)
- #define xmutex_lock(m) mutex_lock(m)
- #define xmutex_unlock(m) mutex_unlock(m)
- #define xcondition_init(c) cond_init(c, 0, 0)
- #define xcondition_clear(c) cond_destroy(c)
- #define xcondition_wait(c,m) cond_wait(c,m)
- #define xcondition_signal(c) cond_signal(c)
- #define xcondition_broadcast(c) cond_broadcast(c)
- #else
- #include <pthread.h>
- typedef pthread_t xthread_t;
- typedef pthread_key_t xthread_key_t;
- typedef pthread_cond_t xcondition_rec;
- typedef pthread_mutex_t xmutex_rec;
- #define xthread_self pthread_self
- #define xthread_yield() pthread_yield()
- #define xthread_exit(v) pthread_exit(v)
- #define xthread_set_specific(k,v) pthread_setspecific(k,v)
- #define xmutex_clear(m) pthread_mutex_destroy(m)
- #define xmutex_lock(m) pthread_mutex_lock(m)
- #define xmutex_unlock(m) pthread_mutex_unlock(m)
- #ifndef XPRE_STANDARD_API
- #define xthread_key_create(kp,d) pthread_key_create(kp,d)
- #define xthread_key_delete(k) pthread_key_delete(k)
- #define xthread_get_specific(k,vp) *(vp) = pthread_getspecific(k)
- #define xthread_fork(func,closure) { pthread_t _tmpxthr;
- pthread_create(&_tmpxthr,NULL,func,closure); }
- #define XMUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
- #define xmutex_init(m) pthread_mutex_init(m, NULL)
- #define xcondition_init(c) pthread_cond_init(c, NULL)
- #else /* XPRE_STANDARD_API */
- #define xthread_key_create(kp,d) pthread_keycreate(kp,d)
- #define xthread_key_delete(k) 0
- #define xthread_get_specific(k,vp) pthread_getspecific(k,vp)
- #define xthread_fork(func,closure) { pthread_t _tmpxthr;
- pthread_create(&_tmpxthr,pthread_attr_default,func,closure); }
- #define xmutex_init(m) pthread_mutex_init(m, pthread_mutexattr_default)
- #define xcondition_init(c) pthread_cond_init(c, pthread_condattr_default)
- #endif /* XPRE_STANDARD_API */
- #define xcondition_clear(c) pthread_cond_destroy(c)
- #define xcondition_wait(c,m) pthread_cond_wait(c,m)
- #define xcondition_signal(c) pthread_cond_signal(c)
- #define xcondition_broadcast(c) pthread_cond_broadcast(c)
- #if defined(_DECTHREADS_)
- static xthread_t _X_no_thread_id;
- #define xthread_have_id(id) !pthread_equal(id, _X_no_thread_id)
- #define xthread_clear_id(id) id = _X_no_thread_id
- #define xthread_equal(id1,id2) pthread_equal(id1, id2)
- #endif /* _DECTHREADS_ */
- #if defined(__linux__)
- #define xthread_have_id(id) !pthread_equal(id, 0)
- #define xthread_clear_id(id) id = 0
- #define xthread_equal(id1,id2) pthread_equal(id1, id2)
- #endif /* linux */
- #if defined(_CMA_VENDOR_) && defined(_CMA__IBM) && (_CMA_VENDOR_ == _CMA__IBM)
- #ifdef DEBUG /* too much of a hack to enable normally */
- /* see also cma__obj_set_name() */
- #define xmutex_set_name(m,str) ((char**)(m)->field1)[5] = (str)
- #define xcondition_set_name(cv,str) ((char**)(cv)->field1)[5] = (str)
- #endif /* DEBUG */
- #endif /* _CMA_VENDOR_ == _CMA__IBM */
- #endif /* USE_NBSD_THREADLIB */
- #endif /* USE_TIS_SUPPORT */
- #endif /* WIN32 */
- #endif /* SVR4 */
- #endif /* CTHREADS */
- typedef xcondition_rec *xcondition_t;
- typedef xmutex_rec *xmutex_t;
- #ifndef xcondition_malloc
- #define xcondition_malloc() (xcondition_t)xmalloc(sizeof(xcondition_rec))
- #endif
- #ifndef xcondition_free
- #define xcondition_free(c) xfree((char *)c)
- #endif
- #ifndef xmutex_malloc
- #define xmutex_malloc() (xmutex_t)xmalloc(sizeof(xmutex_rec))
- #endif
- #ifndef xmutex_free
- #define xmutex_free(m) xfree((char *)m)
- #endif
- #ifndef xthread_have_id
- #define xthread_have_id(id) id
- #endif
- #ifndef xthread_clear_id
- #define xthread_clear_id(id) id = 0
- #endif
- #ifndef xthread_equal
- #define xthread_equal(id1,id2) ((id1) == (id2))
- #endif
- /* aids understood by some debuggers */
- #ifndef xthread_set_name
- #define xthread_set_name(t,str)
- #endif
- #ifndef xmutex_set_name
- #define xmutex_set_name(m,str)
- #endif
- #ifndef xcondition_set_name
- #define xcondition_set_name(cv,str)
- #endif
- #endif /* _XTHREADS_H_ */