83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
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// Guard.h -- Guard class declaration
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// (c) Copyright Schlumberger Technology Corp., unpublished work, created
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// 1999. This computer program includes Confidential, Proprietary
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// Information and is a Trade Secret of Schlumberger Technology Corp. All
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// use, disclosure, and/or reproduction is prohibited unless authorized
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// in writing. All Rights Reserved.
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#if !defined(SLBCSP_GUARD_H)
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#define SLBCSP_GUARD_H
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#include "Lockable.h"
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// Guard (manage) the locking and unlocking of a lockable object.
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template<class T>
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class Guard
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{
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public:
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// Types
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// C'tors/D'tors
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explicit
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Guard(T &rLock)
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: m_rLock(rLock)
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{
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m_rLock.Lock();
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}
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~Guard()
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{
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try
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{
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m_rLock.Unlock();
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}
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catch (...)
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{
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// do nothing, exceptions should not propagate out of
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// destructors
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}
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}
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// Operators
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// Operations
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// Access
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// Predicates
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protected:
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// Types
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// C'tors/D'tors
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// Operators
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// Operations
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// Access
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// Predicates
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// Variables
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T &m_rLock;
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private:
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// Types
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// C'tors/D'tors
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// Operators
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// Operations
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// Access
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// Predicates
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// Variables
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};
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template<>
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class Guard<Lockable *>
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: public Guard<Lockable>
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{
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Guard(Lockable *pLock)
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: Guard<Lockable>(*pLock)
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{};
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~Guard()
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{};
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};
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#endif // SLBCSP_GUARD_H
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