/usr/include/Poco/ScopedUnlock.h is in libpoco-dev 1.8.0.1-1ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// ScopedUnlock.h
//
// Library: Foundation
// Package: Threading
// Module: Mutex
//
// Definition of the ScopedUnlock template class.
//
// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_ScopedUnlock_INCLUDED
#define Foundation_ScopedUnlock_INCLUDED
#include "Poco/Foundation.h"
namespace Poco {
template <class M>
class ScopedUnlock
/// A class that simplifies thread synchronization
/// with a mutex.
/// The constructor accepts a Mutex and unlocks it.
/// The destructor locks the mutex.
{
public:
inline ScopedUnlock(M& mutex, bool unlockNow = true): _mutex(mutex)
{
if (unlockNow)
_mutex.unlock();
}
inline ~ScopedUnlock()
{
try
{
_mutex.lock();
}
catch (...)
{
poco_unexpected();
}
}
private:
M& _mutex;
ScopedUnlock();
ScopedUnlock(const ScopedUnlock&);
ScopedUnlock& operator = (const ScopedUnlock&);
};
} // namespace Poco
#endif // Foundation_ScopedUnlock_INCLUDED
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