68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
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#ifndef _management_Mutex_h
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#define _management_Mutex_h
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/*
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*
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* Copyright (c) 2008 The Apache Software Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include "qpid/CommonImportExport.h"
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namespace qpid {
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namespace sys {
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class Mutex;
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}
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namespace management {
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/**
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* Scoped lock template: calls lock() in ctor, unlock() in dtor.
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* L can be any class with lock() and unlock() functions.
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*/
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template <class L> class ScopedLockTemplate {
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public:
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ScopedLockTemplate(L& l) : mutex(l) { mutex.lock(); }
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~ScopedLockTemplate() { mutex.unlock(); }
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private:
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L& mutex;
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};
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template <class L> class ScopedUnlockTemplate {
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public:
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ScopedUnlockTemplate(L& l) : mutex(l) { mutex.unlock(); }
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~ScopedUnlockTemplate() { mutex.lock(); }
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private:
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L& mutex;
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};
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class Mutex {
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public:
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typedef ScopedLockTemplate<Mutex> ScopedLock;
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typedef ScopedUnlockTemplate<Mutex> ScopedUnlock;
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QPID_COMMON_EXTERN Mutex();
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QPID_COMMON_EXTERN ~Mutex();
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QPID_COMMON_EXTERN void lock();
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QPID_COMMON_EXTERN void unlock();
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private:
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sys::Mutex* impl;
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};
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}
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}
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#endif
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