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// spin_lock.h
/**
* Copyright (C) 2008 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef CONCURRENCY_SPINLOCK_HEADER
#define CONCURRENCY_SPINLOCK_HEADER
namespace mongo {
/**
* BIG WARNING - COMPILES, BUT NOT READY FOR USE - BIG WARNING
*
* The spinlock currently requires late GCC support
* routines. Support for other platforms will be added soon.
*/
class SpinLock{
public:
SpinLock();
~SpinLock();
void lock();
void unlock();
private:
bool _locked;
// Non-copyable, non-assignable
SpinLock(SpinLock&);
SpinLock& operator=(SpinLock&);
};
} // namespace mongo
#endif // CONCURRENCY_SPINLOCK_HEADER
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