Add a RAII SpinLock (using boost's spinlock)
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48
libs/pbd/pbd/spinlock.h
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48
libs/pbd/pbd/spinlock.h
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/*
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* Copyright (C) 2017 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _pbd_spinlock_h_
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#define _pbd_spinlock_h_
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#include <boost/smart_ptr/detail/spinlock.hpp>
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#include "pbd/libpbd_visibility.h"
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namespace PBD {
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/* struct boost::detail::spinlock {
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* void lock();
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* bool try_lock();
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* void unlock();
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* };
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*/
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typedef boost::detail::spinlock spinlock_t;
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/* RAII wrapper */
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class LIBPBD_API SpinLock {
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public:
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SpinLock (spinlock_t&);
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~SpinLock ();
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private:
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spinlock_t& _lock;
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};
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} /* namespace */
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#endif /* _pbd_spinlock_h__ */
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37
libs/pbd/spinlock.cc
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37
libs/pbd/spinlock.cc
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/*
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* Copyright (C) 2017 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifdef PLATFORM_WINDOWS
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#include <windows.h>
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#include <malloc.h>
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#endif
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#include "pbd/spinlock.h"
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using namespace PBD;
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SpinLock::SpinLock (spinlock_t& lock)
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: _lock (lock)
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{
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_lock.lock ();
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}
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SpinLock::~SpinLock ()
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{
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_lock.unlock ();
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}
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@ -70,6 +70,7 @@ libpbd_sources = [
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'semutils.cc',
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'semutils.cc',
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'shortpath.cc',
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'shortpath.cc',
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'signals.cc',
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'signals.cc',
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'spinlock.cc',
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'stacktrace.cc',
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'stacktrace.cc',
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'stateful_diff_command.cc',
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'stateful_diff_command.cc',
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'stateful.cc',
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'stateful.cc',
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