37 lines
942 B
C++
37 lines
942 B
C++
/*
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* Deskflow -- mouse and keyboard sharing utility
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* SPDX-FileCopyrightText: (C) 2012 - 2016 Synergy App Ltd
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* SPDX-FileCopyrightText: (C) 2002 Chris Schoeneman
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* SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
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*/
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#pragma once
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class Mutex;
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class CondVarBase;
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//! Mutual exclusion lock utility
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/*!
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This class locks a mutex or condition variable in the c'tor and unlocks
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it in the d'tor. It's easier and safer than manually locking and
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unlocking since unlocking must usually be done no matter how a function
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exits (including by unwinding due to an exception).
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*/
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class Lock
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{
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public:
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//! Lock the mutex \c mutex
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explicit Lock(const Mutex *mutex);
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//! Lock the condition variable \c cv
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explicit Lock(const CondVarBase *cv);
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//! Unlock the mutex or condition variable
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~Lock();
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private:
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// not implemented
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Lock(const Lock &);
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Lock &operator=(const Lock &);
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private:
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const Mutex *m_mutex;
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};
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