317 lines
12 KiB
C
317 lines
12 KiB
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_ */
|