/* * Copyright (C) 2017 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "BInline.h" #include "IsoDeallocator.h" #include "IsoPage.h" #include "Mutex.h" #include <mutex> namespace bmalloc { template<typename Config> IsoDeallocator<Config>::IsoDeallocator(Mutex& lock) : m_lock(&lock) { } template<typename Config> IsoDeallocator<Config>::~IsoDeallocator() { } template<typename Config> void IsoDeallocator<Config>::deallocate(void* ptr) { static constexpr bool verbose = false; if (verbose) fprintf(stderr, "%p: deallocating %p of size %u\n", &IsoPage<Config>::pageFor(ptr)->heap(), ptr, Config::objectSize); if (m_objectLog.size() == m_objectLog.capacity()) scavenge(); m_objectLog.push(ptr); } template<typename Config> BNO_INLINE void IsoDeallocator<Config>::scavenge() { std::lock_guard<Mutex> locker(*m_lock); for (void* ptr : m_objectLog) IsoPage<Config>::pageFor(ptr)->free(ptr); m_objectLog.clear(); } } // namespace bmalloc