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105 lines
2.4 KiB
C++
105 lines
2.4 KiB
C++
/*
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*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/idpl.html.
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*
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* Software distributed under the License is distributed on
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* an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either
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* express or implied. See the License for the specific
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* language governing rights and limitations under the License.
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*
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* The contents of this file or any work derived from this file
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* may not be distributed under any other license whatsoever
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* without the express prior written permission of the original
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* author.
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*
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*
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* The Original Code was created by James A. Starkey for IBPhoenix.
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*
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* Copyright (c) 1997 - 2000, 2001, 2003 James A. Starkey
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* Copyright (c) 1997 - 2000, 2001, 2003 Netfrastructure, Inc.
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* All Rights Reserved.
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*
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* The Code was ported into Firebird Open Source RDBMS project by
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* Vladyslav Khorsun at 2010
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*
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* Contributor(s):
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*/
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#ifndef CLASSES_SYNCHRONIZE_H
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#define CLASSES_SYNCHRONIZE_H
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#include "../common/classes/SyncObject.h"
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#ifndef WIN_NT
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#include "fb_pthread.h"
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#endif
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namespace Firebird {
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class Synchronize
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{
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public:
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Synchronize();
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virtual ~Synchronize();
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virtual void shutdown();
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void wake();
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bool sleep(int milliseconds);
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void sleep();
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protected:
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bool shutdownInProgress;
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bool sleeping;
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volatile bool wakeup;
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#ifdef WIN_NT
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void* evnt;
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#else
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pthread_cond_t condition;
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pthread_mutex_t mutex;
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#endif
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};
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class Sync;
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class SyncObject;
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class ThreadSync : public Synchronize
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{
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friend class SyncObject;
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public:
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explicit ThreadSync(const char* desc);
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virtual ~ThreadSync();
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static ThreadSync* findThread();
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static ThreadSync* getThread(const char* desc);
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static ThreadId getCurrentThreadId();
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const char* getWhere() const;
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private:
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void grantLock(SyncObject* lock);
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static void setThread(ThreadSync* thread);
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ThreadId threadId;
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ThreadSync* nextWaiting; // next thread in sleep que (see SyncObject)
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ThreadSync* prevWaiting; // previous thread in sleep que (see SyncObject)
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SyncType lockType; // requested lock type (see SyncObject)
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volatile bool lockGranted;
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Sync* lockPending;
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Sync* locks;
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const char* description;
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};
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} // namespace Firebird
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#endif // CLASSES_SYNCHRONIZE_H
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