56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
// include/Unlock.hh
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// This file is part of libpbe; see http://svn.chezphil.org/libpbe/
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// (C) 2008 Philip Endecott
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#ifndef libpbe_Unlock_hh
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#define libpbe_Unlock_hh
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// The file implements a Unlock class, which unlocks a mutex while it is
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// in scope.
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#include <boost/noncopyable.hpp>
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namespace pbe {
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template <typename MUTEX_T>
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struct Unlock: boost::noncopyable {
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typedef MUTEX_T mutex_t;
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mutex_t& m;
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explicit Unlock(mutex_t& m_): m(m_) {
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m.unlock();
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}
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~Unlock() {
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m.lock();
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}
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mutex_t* mutex(void) {
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return &m;
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}
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};
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};
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#endif
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