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Diffstat (limited to 'qpid/cpp/include/qpid/management/Mutex.h')
-rw-r--r-- | qpid/cpp/include/qpid/management/Mutex.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/qpid/cpp/include/qpid/management/Mutex.h b/qpid/cpp/include/qpid/management/Mutex.h new file mode 100644 index 0000000000..67ae04bae9 --- /dev/null +++ b/qpid/cpp/include/qpid/management/Mutex.h @@ -0,0 +1,67 @@ +#ifndef _management_Mutex_h +#define _management_Mutex_h + +/* + * + * Copyright (c) 2008 The Apache Software Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#include "qpid/CommonImportExport.h" + +namespace qpid { + namespace sys { + class Mutex; + } + + namespace management { + + /** + * Scoped lock template: calls lock() in ctor, unlock() in dtor. + * L can be any class with lock() and unlock() functions. + */ + template <class L> class ScopedLockTemplate { + public: + ScopedLockTemplate(L& l) : mutex(l) { mutex.lock(); } + ~ScopedLockTemplate() { mutex.unlock(); } + private: + L& mutex; + }; + + template <class L> class ScopedUnlockTemplate { + public: + ScopedUnlockTemplate(L& l) : mutex(l) { mutex.unlock(); } + ~ScopedUnlockTemplate() { mutex.lock(); } + private: + L& mutex; + }; + + class Mutex { + public: + typedef ScopedLockTemplate<Mutex> ScopedLock; + typedef ScopedUnlockTemplate<Mutex> ScopedUnlock; + + QPID_COMMON_EXTERN Mutex(); + QPID_COMMON_EXTERN ~Mutex(); + QPID_COMMON_EXTERN void lock(); + QPID_COMMON_EXTERN void unlock(); + private: + sys::Mutex* impl; + }; + } +} + +#endif + |