gcc/libjava/include/no-threads.h

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1999-04-07 16:42:40 +02:00
// -*- c++ -*-
// no-threads.h - Defines for using no threads.
/* Copyright (C) 1998, 1999 Free Software Foundation
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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)
{
}
_Jv_Thread_t *
_Jv_ThreadInitData (java::lang::Thread *);
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inline void
_Jv_ThreadDestroyData (_Jv_Thread_t *data)
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{
}
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_ThreadRegister (_Jv_Thread_t *data)
{
}
inline void
_Jv_ThreadUnRegister (void)
{
}
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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__ */