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382 lines
6.7 KiB
382 lines
6.7 KiB
// -*- C++ -*-
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// Copyright (C) 2010, Vaclav Haisman. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modifica-
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// tion, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
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// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
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// DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef LOG4CPLUS_THREAD_SYNCPRIMS_H
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#define LOG4CPLUS_THREAD_SYNCPRIMS_H
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#include <log4cplus/config.hxx>
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#if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
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#pragma once
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#endif
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namespace log4cplus { namespace thread {
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template <typename SP>
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class SyncGuard
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{
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public:
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SyncGuard ();
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SyncGuard (SP const &);
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~SyncGuard ();
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void lock ();
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void unlock ();
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void attach (SP const &);
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void attach_and_lock (SP const &);
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void detach ();
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private:
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SP const * sp;
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SyncGuard (SyncGuard const &);
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SyncGuard & operator = (SyncGuard const &);
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};
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class ManualResetEvent;
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class MutexImplBase
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{
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protected:
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~MutexImplBase ();
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};
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class LOG4CPLUS_EXPORT Mutex
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{
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public:
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enum Type
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{
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DEFAULT,
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RECURSIVE
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};
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explicit Mutex (Type = RECURSIVE);
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~Mutex ();
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void lock () const;
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void unlock () const;
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private:
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MutexImplBase * mtx;
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Mutex (Mutex const &);
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Mutex & operator = (Mutex &);
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};
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typedef SyncGuard<Mutex> MutexGuard;
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class SemaphoreImplBase
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{
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protected:
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~SemaphoreImplBase ();
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};
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class LOG4CPLUS_EXPORT Semaphore
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{
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public:
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Semaphore (unsigned max, unsigned initial);
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~Semaphore ();
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void lock () const;
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void unlock () const;
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private:
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SemaphoreImplBase * sem;
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Semaphore (Semaphore const &);
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Semaphore & operator = (Semaphore const &);
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};
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typedef SyncGuard<Semaphore> SemaphoreGuard;
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class FairMutexImplBase
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{
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protected:
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~FairMutexImplBase ();
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};
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class LOG4CPLUS_EXPORT FairMutex
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{
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public:
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FairMutex ();
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~FairMutex ();
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void lock () const;
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void unlock () const;
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private:
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FairMutexImplBase * mtx;
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FairMutex (FairMutex const &);
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FairMutex & operator = (FairMutex &);
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};
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typedef SyncGuard<FairMutex> FairMutexGuard;
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class ManualResetEventImplBase
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{
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protected:
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~ManualResetEventImplBase ();
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};
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class LOG4CPLUS_EXPORT ManualResetEvent
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{
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public:
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ManualResetEvent (bool = false);
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~ManualResetEvent ();
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void signal () const;
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void wait () const;
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bool timed_wait (unsigned long msec) const;
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void reset () const;
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private:
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ManualResetEventImplBase * ev;
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ManualResetEvent (ManualResetEvent const &);
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ManualResetEvent & operator = (ManualResetEvent const &);
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};
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class SharedMutexImplBase
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{
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protected:
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~SharedMutexImplBase ();
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};
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template <typename SP, void (SP:: * lock_func) () const,
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void (SP:: * unlock_func) () const>
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class SyncGuardFunc
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{
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public:
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SyncGuardFunc (SP const &);
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~SyncGuardFunc ();
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void lock ();
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void unlock ();
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void attach (SP const &);
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void detach ();
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private:
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SP const * sp;
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SyncGuardFunc (SyncGuardFunc const &);
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SyncGuardFunc & operator = (SyncGuardFunc const &);
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};
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class LOG4CPLUS_EXPORT SharedMutex
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{
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public:
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SharedMutex ();
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~SharedMutex ();
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void rdlock () const;
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void rdunlock () const;
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void wrlock () const;
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void wrunlock () const;
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private:
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SharedMutexImplBase * sm;
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SharedMutex (SharedMutex const &);
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SharedMutex & operator = (SharedMutex const &);
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};
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typedef SyncGuardFunc<SharedMutex, &SharedMutex::rdlock,
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&SharedMutex::rdunlock> SharedMutexReaderGuard;
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typedef SyncGuardFunc<SharedMutex, &SharedMutex::wrlock,
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&SharedMutex::wrunlock> SharedMutexWriterGuard;
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//
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//
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//
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template <typename SP>
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inline
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SyncGuard<SP>::SyncGuard ()
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: sp (0)
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{ }
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template <typename SP>
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inline
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SyncGuard<SP>::SyncGuard (SP const & m)
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: sp (&m)
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{
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sp->lock ();
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}
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template <typename SP>
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inline
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SyncGuard<SP>::~SyncGuard ()
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{
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if (sp)
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sp->unlock ();
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}
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template <typename SP>
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inline
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void
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SyncGuard<SP>::lock ()
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{
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sp->lock ();
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}
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template <typename SP>
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inline
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void
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SyncGuard<SP>::unlock ()
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{
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sp->unlock ();
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}
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template <typename SP>
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inline
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void
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SyncGuard<SP>::attach (SP const & m)
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{
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sp = &m;
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}
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template <typename SP>
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inline
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void
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SyncGuard<SP>::attach_and_lock (SP const & m)
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{
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attach (m);
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try
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{
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lock();
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}
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catch (...)
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{
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detach ();
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throw;
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}
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}
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template <typename SP>
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inline
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void
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SyncGuard<SP>::detach ()
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{
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sp = 0;
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}
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//
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//
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//
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template <typename SP, void (SP:: * lock_func) () const,
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void (SP:: * unlock_func) () const>
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inline
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SyncGuardFunc<SP, lock_func, unlock_func>::SyncGuardFunc (SP const & m)
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: sp (&m)
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{
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(sp->*lock_func) ();
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}
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template <typename SP, void (SP:: * lock_func) () const,
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void (SP:: * unlock_func) () const>
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inline
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SyncGuardFunc<SP, lock_func, unlock_func>::~SyncGuardFunc ()
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{
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if (sp)
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(sp->*unlock_func) ();
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}
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template <typename SP, void (SP:: * lock_func) () const,
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void (SP:: * unlock_func) () const>
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inline
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void
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SyncGuardFunc<SP, lock_func, unlock_func>::lock ()
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{
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(sp->*lock_func) ();
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}
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template <typename SP, void (SP:: * lock_func) () const,
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void (SP:: * unlock_func) () const>
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inline
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void
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SyncGuardFunc<SP, lock_func, unlock_func>::unlock ()
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{
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(sp->*unlock_func) ();
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}
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template <typename SP, void (SP:: * lock_func) () const,
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void (SP:: * unlock_func) () const>
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inline
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void
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SyncGuardFunc<SP, lock_func, unlock_func>::attach (SP const & m)
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{
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sp = &m;
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}
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template <typename SP, void (SP:: * lock_func) () const,
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void (SP:: * unlock_func) () const>
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inline
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void
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SyncGuardFunc<SP, lock_func, unlock_func>::detach ()
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{
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sp = 0;
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}
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} } // namespace log4cplus { namespace thread {
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#endif // LOG4CPLUS_THREAD_SYNCPRIMS_H
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