ee0f32f4ac
2004-10-02 P.J. Darcy <darcypj@us.ibm.com> * gthr-tpf.h (__gthread_recursive_mutex_t): New type. (__GTHREAD_RECURSIVE_MUTEX_INIT): Define. (__gthread_recursive_mutex_lock, __gthread_recursive_mutex_trylock, __gthread_recursive_mutex_unlock): New functions. From-SVN: r88418
192 lines
4.8 KiB
C
192 lines
4.8 KiB
C
/* Threads compatibility routines for libgcc2 and libobjc.
|
|
Compile this one with gcc.
|
|
Copyright (C) 2004 Free Software Foundation, Inc.
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2, or (at your option) any later
|
|
version.
|
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GCC; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
|
|
02111-1307, USA. */
|
|
|
|
/* As a special exception, if you link this library with other files,
|
|
some of which are compiled with GCC, to produce an executable,
|
|
this library does not by itself cause the resulting executable
|
|
to be covered by the GNU General Public License.
|
|
This exception does not however invalidate any other reasons why
|
|
the executable file might be covered by the GNU General Public License. */
|
|
|
|
|
|
/* TPF needs its own version of gthr-*.h because TPF always links to
|
|
the thread library. However, for performance reasons we still do not
|
|
want to issue thread api calls unless a check is made to see that we
|
|
are running as a thread. */
|
|
|
|
#ifndef GCC_GTHR_TPF_H
|
|
#define GCC_GTHR_TPF_H
|
|
|
|
/* POSIX threads specific definitions.
|
|
Easy, since the interface is just one-to-one mapping. */
|
|
|
|
#define __GTHREADS 1
|
|
|
|
/* Some implementations of <pthread.h> require this to be defined. */
|
|
#ifndef _REENTRANT
|
|
#define _REENTRANT 1
|
|
#endif
|
|
|
|
#include <pthread.h>
|
|
#include <unistd.h>
|
|
|
|
typedef pthread_key_t __gthread_key_t;
|
|
typedef pthread_once_t __gthread_once_t;
|
|
typedef pthread_mutex_t __gthread_mutex_t;
|
|
typedef pthread_mutex_t __gthread_recursive_mutex_t;
|
|
|
|
#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
|
|
#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER
|
|
#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
|
|
#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
|
|
#endif
|
|
|
|
#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
|
|
#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
|
|
|
|
#define NOTATHREAD 00
|
|
#define ECBBASEPTR (unsigned long int) *(unsigned int *)0x00000514u
|
|
#define ECBPG2PTR ECBBASEPTR + 0x1000
|
|
#define CE2THRCPTR *((unsigned char *)(ECBPG2PTR + 208))
|
|
#define __tpf_pthread_active() (CE2THRCPTR != NOTATHREAD)
|
|
|
|
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
|
|
|
|
#pragma weak pthread_once
|
|
#pragma weak pthread_key_create
|
|
#pragma weak pthread_key_delete
|
|
#pragma weak pthread_getspecific
|
|
#pragma weak pthread_setspecific
|
|
#pragma weak pthread_create
|
|
|
|
#pragma weak pthread_mutex_lock
|
|
#pragma weak pthread_mutex_trylock
|
|
#pragma weak pthread_mutex_unlock
|
|
|
|
#endif /* SUPPORTS_WEAK */
|
|
|
|
static inline int
|
|
__gthread_active_p (void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_once (__gthread_once_t *once, void (*func) (void))
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return pthread_once (once, func);
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *))
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return pthread_key_create (key, dtor);
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_key_delete (__gthread_key_t key)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return pthread_key_delete (key);
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
static inline void *
|
|
__gthread_getspecific (__gthread_key_t key)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return pthread_getspecific (key);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_setspecific (__gthread_key_t key, const void *ptr)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return pthread_setspecific (key, ptr);
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_mutex_lock (__gthread_mutex_t *mutex)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return pthread_mutex_lock (mutex);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_mutex_trylock (__gthread_mutex_t *mutex)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return pthread_mutex_trylock (mutex);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_mutex_unlock (__gthread_mutex_t *mutex)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return pthread_mutex_unlock (mutex);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return __gthread_mutex_lock (mutex);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return __gthread_mutex_trylock (mutex);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static inline int
|
|
__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex)
|
|
{
|
|
if (__tpf_pthread_active ())
|
|
return __gthread_mutex_unlock (mutex);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
#endif /* ! GCC_GTHR_TPF_H */
|