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/*
* $XFree86$
*
* Copyright (c) 1995 David E. Wexelblat. 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 DAVID E. WEXELBLAT 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 David E. Wexelblat shall
* not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization
* from David E. Wexelblat.
*
*/
/*
* Stubs for thread functions needed by the X library. Supports
* UnixWare 2.x threads; may support Solaris 2 threads as well, but not
* tested. Defining things this way removes the dependency of the X
* library on the threads library, but still supports threads if the user
* specificies the thread library on the link line.
*/
/*
* Modifications by Carlos A M dos Santos, XFree86 Project, November 1999.
*
* Explanation from <X11/Xos_r.h>:
* The structure below is complicated, mostly because P1003.1c (the
* IEEE POSIX Threads spec) went through lots of drafts, and some
* vendors shipped systems based on draft API that were changed later.
* Unfortunately POSIX did not provide a feature-test macro for
* distinguishing each of the drafts.
*/
#ifdef CTHREADS
#include <cthreads.h>
typedef cthread_t xthread_t;
#define xthread_self cthread_self
#pragma weak cthread_self = _Xthr_self_stub_
#define xmutex_init mutex_init
#pragma weak mutex_init = _Xthr_zero_stub_
#pragma weak mutex_clear = _Xthr_zero_stub_
#pragma weak mutex_lock = _Xthr_zero_stub_
#pragma weak mutex_unlock = _Xthr_zero_stub_
#pragma weak condition_init = _Xthr_zero_stub_
#pragma weak condition_clear = _Xthr_zero_stub_
#pragma weak condition_wait = _Xthr_zero_stub_
#pragma weak condition_signal = _Xthr_zero_stub_
#pragma weak condition_broadcast = _Xthr_zero_stub_
#else /* !CTHREADS */
#if defined(SVR4) && !defined(__sgi)
#include <thread.h>
typedef thread_t xthread_t;
#pragma weak thr_self = _Xthr_self_stub_
#pragma weak mutex_init = _Xthr_zero_stub_
#pragma weak mutex_destroy = _Xthr_zero_stub_
#pragma weak mutex_lock = _Xthr_zero_stub_
#pragma weak mutex_unlock = _Xthr_zero_stub_
#pragma weak cond_init = _Xthr_zero_stub_
#pragma weak cond_destroy = _Xthr_zero_stub_
#pragma weak cond_wait = _Xthr_zero_stub_
#pragma weak cond_signal = _Xthr_zero_stub_
#pragma weak cond_broadcast = _Xthr_zero_stub_
#else /* !SVR4 */
#ifdef WIN32
/*
* Don't know what to do here. Is there something do be done at all?
*/
#else /* !WIN32 */
#ifdef USE_TIS_SUPPORT
#include <tis.h>
typedef pthread_t xthread_t;
#pragma weak tis_self = _Xthr_self_stub_
#pragma weak tis_mutex_init = _Xthr_zero_stub_
#pragma weak tis_mutex_destroy = _Xthr_zero_stub_
#pragma weak tis_mutex_lock = _Xthr_zero_stub_
#pragma weak tis_mutex_unlock = _Xthr_zero_stub_
#pragma weak tis_cond_init = _Xthr_zero_stub_
#pragma weak tis_cond_destroy = _Xthr_zero_stub_
#pragma weak tis_cond_wait = _Xthr_zero_stub_
#pragma weak tis_cond_signal = _Xthr_zero_stub_
#pragma weak tis_cond_broadcast = _Xthr_zero_stub_
#else
#include <pthread.h>
typedef pthread_t xthread_t;
#if __GNUC__ >= 3
xthread_t pthread_self() __attribute__ ((weak, alias ("_Xthr_self_stub_")));
int pthread_mutex_init() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_mutex_destroy() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_mutex_lock() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_mutex_unlock() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_cond_init() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_cond_destroy() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_cond_wait() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_cond_signal() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_cond_broadcast() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_key_create() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
void *pthread_getspecific() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
int pthread_setspecific() __attribute__ ((weak, alias ("_Xthr_zero_stub_")));
#else /* __GNUC__ */
#pragma weak pthread_self = _Xthr_self_stub_
#pragma weak pthread_mutex_init = _Xthr_zero_stub_
#pragma weak pthread_mutex_destroy = _Xthr_zero_stub_
#pragma weak pthread_mutex_lock = _Xthr_zero_stub_
#pragma weak pthread_mutex_unlock = _Xthr_zero_stub_
#pragma weak pthread_cond_init = _Xthr_zero_stub_
#pragma weak pthread_cond_destroy = _Xthr_zero_stub_
#pragma weak pthread_cond_wait = _Xthr_zero_stub_
#pragma weak pthread_cond_signal = _Xthr_zero_stub_
#pragma weak pthread_cond_broadcast = _Xthr_zero_stub_
/* These are added for libGL */
#pragma weak pthread_key_create = _Xthr_zero_stub_
#pragma weak pthread_getspecific = _Xthr_zero_stub_
#pragma weak pthread_setspecific = _Xthr_zero_stub_
#endif /* __GNUC__ */
#if defined(_DECTHREADS_) || defined(linux)
#pragma weak pthread_equal = _Xthr_equal_stub_ /* See Xthreads.h! */
int
_Xthr_equal_stub_()
{
return(1);
}
#endif /* _DECTHREADS_ || linux */
#endif /* USE_TIS_SUPPORT */
#endif /* WIN32 */
#endif /* SVR4 */
#endif /* CTHREADS */
static xthread_t
_Xthr_self_stub_()
{
static xthread_t _X_no_thread_id;
return(_X_no_thread_id); /* defined by <X11/Xthreads.h> */
}
static int
_Xthr_zero_stub_()
{
return(0);
}
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