--- /dev/null
+/*
+ * $XConsortium: Xthreads.h /main/35 1996/12/04 10:23:02 lehors $
+ * $XFree86: xc/include/Xthreads.h,v 3.3 1996/12/23 05:58:11 dawes Exp $
+ *
+ *
+Copyright (c) 1993 X Consortium
+
+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 THE
+X CONSORTIUM 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 X Consortium 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 X Consortium.
+ * *
+ */
+
+#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)
+#include <thread.h>
+#include <synch.h>
+#ifndef LINE_MAX
+#define LINE_MAX 2048
+#endif
+typedef thread_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_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_INITIALIZER {0}
+#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
+#define BOOL wBOOL
+#ifdef Status
+#undef Status
+#define Status wStatus
+#endif
+#include <windows.h>
+#ifdef Status
+#undef Status
+#define Status int
+#endif
+#undef BOOL
+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
+#include <pthread.h>
+#ifndef LINE_MAX
+#define LINE_MAX 2048
+#endif
+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_) || defined(linux)
+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_ || linux */
+#if _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_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_ */
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