8627cc158d
2002-02-01 Adam Megacz <adam@xwt.org>
* include/win32-threads.h (_Jv_ConditionVariable_t): Now a struct, to
enable safer wait() algorithm.
(_Jv_CondWait, _Jv_CondInit, _Jv_CondDestroy, _Jv_CondNotify,
_Jv_CondNotifyAll): Implementations moved to win32-threads.cc.
(_Jv_MutexInit, _Jv_HaveMutexDestroy, _Jv_MutexUnlock,
_Jv_MutexLock, _Jv_ThreadYield): Reimplement using CRITICAL_SECTIONs
instead of mutex.
(_Jv_ThreadYield): Don't call Sleep(), because it crashes win98.
From-SVN: r49427
126 lines
2.8 KiB
C++
126 lines
2.8 KiB
C++
// -*- c++ -*-
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// win32-threads.h - Defines for using Win32 threads.
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/* Copyright (C) 1998, 1999, 2000 Free Software Foundation
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This file is part of libgcj.
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This software is copyrighted work licensed under the terms of the
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Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
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details. */
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#ifndef __JV_WIN32_THREADS__
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#define __JV_WIN32_THREADS__
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#include <windows.h>
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//
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// Typedefs.
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//
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typedef struct _Jv_ConditionVariable_t {
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HANDLE ev[2];
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CRITICAL_SECTION count_mutex;
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int blocked_count;
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};
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typedef CRITICAL_SECTION _Jv_Mutex_t;
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typedef struct
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{
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int flags; // Flags are defined in implementation.
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HANDLE handle; // Actual handle to the thread
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java::lang::Thread *thread_obj;
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} _Jv_Thread_t;
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typedef void _Jv_ThreadStartFunc (java::lang::Thread *);
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//
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// Condition variables.
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//
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int _Jv_CondWait (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *mu, jlong millis, jint nanos);
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void _Jv_CondInit (_Jv_ConditionVariable_t *cv);
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void _Jv_CondDestroy (_Jv_ConditionVariable_t *cv);
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int _Jv_CondNotify (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *);
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int _Jv_CondNotifyAll (_Jv_ConditionVariable_t *cv, _Jv_Mutex_t *);
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//
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// Mutexes.
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// We use CRITICAL_SECTIONs instead of CreateMutex() for better performance
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//
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inline void _Jv_MutexInit (_Jv_Mutex_t *mu)
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{
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InitializeCriticalSection(mu);
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}
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#define _Jv_HaveMutexDestroy
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inline void _Jv_MutexDestroy (_Jv_Mutex_t *mu)
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{
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DeleteCriticalSection(mu);
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mu = NULL;
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}
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inline int _Jv_MutexUnlock (_Jv_Mutex_t *mu)
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{
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LeaveCriticalSection(mu);
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return 0;
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}
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inline int _Jv_MutexLock (_Jv_Mutex_t *mu)
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{
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EnterCriticalSection(mu);
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return 0;
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}
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//
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// Thread creation and manipulation.
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//
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void _Jv_InitThreads (void);
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_Jv_Thread_t *_Jv_ThreadInitData (java::lang::Thread *thread);
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void _Jv_ThreadDestroyData (_Jv_Thread_t *data);
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inline java::lang::Thread* _Jv_ThreadCurrent (void)
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{
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extern DWORD _Jv_ThreadKey;
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return (java::lang::Thread *) TlsGetValue(_Jv_ThreadKey);
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}
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inline _Jv_Thread_t *_Jv_ThreadCurrentData(void)
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{
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extern DWORD _Jv_ThreadDataKey;
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return (_Jv_Thread_t *) TlsGetValue(_Jv_ThreadDataKey);
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}
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inline void _Jv_ThreadYield (void)
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{
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// FIXME: win98 freezes hard (OS hang) when we use this --
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// for now, we simply don't yield
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// Sleep (0);
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}
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void _Jv_ThreadRegister (_Jv_Thread_t *data);
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void _Jv_ThreadUnRegister ();
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void _Jv_ThreadSetPriority (_Jv_Thread_t *data, jint prio);
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void _Jv_ThreadStart (java::lang::Thread *thread, _Jv_Thread_t *data,
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_Jv_ThreadStartFunc *meth);
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void _Jv_ThreadWait (void);
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void _Jv_ThreadInterrupt (_Jv_Thread_t *data);
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// Remove defines from <windows.h> that conflict with various things in libgcj code
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#undef TRUE
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#undef FALSE
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#undef MAX_PRIORITY
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#undef MIN_PRIORITY
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#undef min
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#undef max
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#undef interface
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#undef STRICT
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#undef VOID
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#endif /* __JV_WIN32_THREADS__ */
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