mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-18 06:49:15 +08:00
155 lines
2.3 KiB
C++
155 lines
2.3 KiB
C++
// -*- c++ -*-
|
|
// no-threads.h - Defines for using no threads.
|
|
|
|
/* Copyright (C) 1998, 1999 Cygnus Solutions
|
|
|
|
This file is part of libgcj.
|
|
|
|
This software is copyrighted work licensed under the terms of the
|
|
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
|
|
details. */
|
|
|
|
#ifndef __JV_NO_THREADS__
|
|
#define __JV_NO_THREADS__
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdlib.h>
|
|
#ifdef HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
//
|
|
// Typedefs.
|
|
//
|
|
|
|
typedef int _Jv_ConditionVariable_t;
|
|
typedef int _Jv_Mutex_t;
|
|
typedef int _Jv_Thread_t;
|
|
typedef void _Jv_ThreadStartFunc (java::lang::Thread *);
|
|
|
|
|
|
//
|
|
// Condition variables.
|
|
//
|
|
|
|
inline void
|
|
_Jv_CondInit (_Jv_ConditionVariable_t *)
|
|
{
|
|
}
|
|
|
|
// Waiting is ok provided there is a timeout. Otherwise we will just
|
|
// wait forever.
|
|
inline int
|
|
_Jv_CondWait (_Jv_ConditionVariable_t *, _Jv_Mutex_t *,
|
|
jlong millis, jint nanos)
|
|
{
|
|
if (millis == 0 && nanos == 0)
|
|
JvFail ("_Jv_CondWait without timeout");
|
|
|
|
#ifdef HAVE_SLEEP
|
|
int seconds = millis / 1000;
|
|
if (seconds > 0)
|
|
sleep (seconds);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
inline int
|
|
_Jv_CondNotify (_Jv_ConditionVariable_t *, _Jv_Mutex_t *)
|
|
{
|
|
// It is ok to notify -- it just has no effect.
|
|
return 0;
|
|
}
|
|
|
|
inline int
|
|
_Jv_CondNotifyAll (_Jv_ConditionVariable_t *, _Jv_Mutex_t *)
|
|
{
|
|
// It is ok to notify -- it just has no effect.
|
|
return 0;
|
|
}
|
|
|
|
|
|
//
|
|
// Mutexes.
|
|
//
|
|
|
|
inline void
|
|
_Jv_MutexInit (_Jv_Mutex_t *)
|
|
{
|
|
}
|
|
|
|
inline int
|
|
_Jv_MutexLock (_Jv_Mutex_t *)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
inline int
|
|
_Jv_MutexUnlock (_Jv_Mutex_t *)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
//
|
|
// Thread creation and manipulation.
|
|
//
|
|
|
|
inline void
|
|
_Jv_InitThreads (void)
|
|
{
|
|
}
|
|
|
|
inline void
|
|
_Jv_ThreadInitData (_Jv_Thread_t **data, java::lang::Thread *)
|
|
{
|
|
*data = NULL;
|
|
}
|
|
|
|
inline java::lang::Thread *
|
|
_Jv_ThreadCurrent (void)
|
|
{
|
|
extern java::lang::Thread *_Jv_OnlyThread;
|
|
return _Jv_OnlyThread;
|
|
}
|
|
|
|
inline void
|
|
_Jv_ThreadYield (void)
|
|
{
|
|
}
|
|
|
|
inline void
|
|
_Jv_ThreadSetPriority (_Jv_Thread_t *, jint)
|
|
{
|
|
}
|
|
|
|
inline void
|
|
_Jv_ThreadCancel (_Jv_Thread_t *, void *)
|
|
{
|
|
JvFail ("_Jv_ThreadCancel");
|
|
}
|
|
|
|
// Like Cancel, but doesn't run cleanups.
|
|
inline void
|
|
_Jv_ThreadDestroy (_Jv_Thread_t *)
|
|
{
|
|
JvFail ("_Jv_ThreadDestroy");
|
|
}
|
|
|
|
void _Jv_ThreadStart (java::lang::Thread *, _Jv_Thread_t *,
|
|
_Jv_ThreadStartFunc *meth);
|
|
|
|
inline void
|
|
_Jv_ThreadWait (void)
|
|
{
|
|
}
|
|
|
|
inline void
|
|
_Jv_ThreadInterrupt (_Jv_Thread_t *)
|
|
{
|
|
}
|
|
|
|
#endif /* __JV_NO_THREADS__ */
|