зеркало из https://github.com/mozilla/gecko-dev.git
140 строки
3.5 KiB
C++
140 строки
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef _Thread
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#define _Thread
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#include "Monitor.h"
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#include "JavaObject.h"
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#include "FieldOrMethod.h"
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#ifdef _WIN32
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typedef CONTEXT ThreadContext;
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#elif defined (__linux__)
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#include <sigcontext.h>
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typedef void* HANDLE;
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typedef struct sigcontext ThreadContext;
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#elif defined (__FreeBSD__) || defined (__NetBSD__)
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#include <machine/signal.h>
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typedef void* HANDLE;
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typedef struct sigcontext ThreadContext;
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#else
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typedef void* HANDLE;
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typedef int ThreadContext;
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#endif
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void _suspendThread(HANDLE p);
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void _resumeThread(HANDLE p);
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bool _getThreadContext(HANDLE handle, ThreadContext& context);
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void _setThreadContext(HANDLE handle, ThreadContext& context);
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Int32* _getFramePointer(ThreadContext& context);
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void _setFramePointer(ThreadContext& context, Int32* v);
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Uint8* _getInstructionPointer(ThreadContext& context);
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void _setInstructionPointer(ThreadContext& context, Uint8* v);
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class NS_EXTERN Thread {
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enum { DEFAULT, ALIVE, SUSPENDED, INTERRUPTED, KILLED, CLEANUP };
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static PointerHashTable<Thread*>* table;
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PRLock* _lock;
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PRThreadPriority prio; // NSPR priority
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void* id; // NSPR
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HANDLE handle; // Win32
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JavaObject* peer; // Java instance of thread
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int state; // used for suspend/resume/interrupt
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static void run(void*); // C++ version of java.lang.Thread.run()
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void realHandle();
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void _stop(JavaObject* exc); // implements asynchronous stop
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public:
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static Pool* pool;
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struct JavaThread : JavaObject { // shadow structure. See java_lang_Thread.h
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JavaObject* name;
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Int32 priority;
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JavaObject* threadQ;
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Int64 eetop;
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Uint32 single_step;
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Uint32 daemon;
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Uint32 stillborn;
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JavaObject* target;
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JavaObject* group;
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JavaObject* inheritedAccessControlContext;
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// dummy constructor, never used (only used for casting)
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JavaThread(const Type& type) : JavaObject(type) { }
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};
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Thread(JavaObject* o) : prio(PR_PRIORITY_NORMAL), id(NULL), handle(NULL), peer(o), state(DEFAULT) {
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_lock = PR_NewLock();
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}
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~Thread() {
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PR_DestroyLock(_lock);
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}
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inline void lock() {
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PR_Lock(_lock);
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}
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inline void unlock() {
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PR_Unlock(_lock);
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}
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static void* getCurrentThread() {
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return (void*)PR_GetCurrentThread();
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}
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Int32 getStatus() {
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return state;
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}
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static void staticInit();
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static JavaObject* currentThread();
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static void yield();
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static void sleep(Int64 i);
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static void exit() {
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// clean up
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::exit(0);
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}
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void start();
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void stop(JavaObject* exc);
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void interrupt();
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bool isInterrupted(Uint32 f);
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bool isAlive();
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Int32 countStackFrames();
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void setPriority(Int32 p);
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void suspend();
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void resume();
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static void invoke(Method* m,JavaObject* obj,JavaObject* arr[],int sz);
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friend void uncaughtException();
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};
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#endif
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