Robin Gareus
6d4b94df13
This works around for compilers with non-static-data-member initialization. spinlock_t is-a struct { lockType _; } and BOOST_DETAIL_SPINLOCK_INIT initializes the first member of the struct. All defines of BOOST_DETAIL_SPINLOCK_INIT include c-style curly braces to initialize the struct's data member. However, modern C++ compiler interpret the braces differently resulting in copy constriction of the initializer.
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
/*
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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 <cstring>
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#include "pbd/spinlock.h"
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using namespace PBD;
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spinlock_t::spinlock_t ()
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#ifdef BOOST_SMART_PTR_DETAIL_SPINLOCK_STD_ATOMIC_HPP_INCLUDED
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/* C++11 non-static data member initialization,
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* with non-copyable std::atomic ATOMIC_FLAG_INIT
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*/
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: l {BOOST_DETAIL_SPINLOCK_INIT} {}
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#else
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/* default C++ assign struct's first member */
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{
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l = BOOST_DETAIL_SPINLOCK_INIT;
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}
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#endif
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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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