mirror of https://gitee.com/bigwinds/arangodb
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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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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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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/// @author Achim Brandt
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////////////////////////////////////////////////////////////////////////////////
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#ifndef LIB_BASICS_SPIN_LOCK_H
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#define LIB_BASICS_SPIN_LOCK_H 1
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#include "Basics/Common.h"
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#include "Basics/locks.h"
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namespace triagens {
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namespace basics {
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////////////////////////////////////////////////////////////////////////////////
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/// @brief spinlock
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////////////////////////////////////////////////////////////////////////////////
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class SpinLock {
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private:
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SpinLock(SpinLock const&) = delete;
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SpinLock& operator=(SpinLock const&) = delete;
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public:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief constructs a spinlock
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//////////////////////////////////////////////////////////////////////////////
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SpinLock();
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//////////////////////////////////////////////////////////////////////////////
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/// @brief deletes the spinlock
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//////////////////////////////////////////////////////////////////////////////
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~SpinLock();
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public:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief acquires the lock
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//////////////////////////////////////////////////////////////////////////////
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void lock();
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//////////////////////////////////////////////////////////////////////////////
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/// @brief releases the lock
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//////////////////////////////////////////////////////////////////////////////
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void unlock();
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private:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief spinlock variable
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//////////////////////////////////////////////////////////////////////////////
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TRI_spin_t _lock;
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};
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}
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}
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#endif
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