mwilliams
94 linhas
3.3 KiB
C++
94 linhas
3.3 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#include <runtime/base/memory/smart_allocator.h>
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#include <runtime/base/memory/memory_manager.h>
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#include <runtime/base/resource_data.h>
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#include <runtime/base/server/server_stats.h>
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#include <runtime/base/runtime_option.h>
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#include <util/logger.h>
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/*
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* Enabling these will prevent us from allocating out of the free list
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* and cause deallocated objects to be filled with garbage. This is
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* intended for detecting data that is freed too eagerly.
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*/
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#if defined(SMART_ALLOCATOR_DEBUG_FREE) && !defined(DETECT_DOUBLE_FREE)
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# define DETECT_DOUBLE_FREE
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#endif
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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// initializer
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std::set<AllocatorThreadLocalInit>& GetAllocatorInitList() {
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static std::set<AllocatorThreadLocalInit> allocatorInitList;
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return allocatorInitList;
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}
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void InitAllocatorThreadLocal() {
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for (std::set<AllocatorThreadLocalInit>::iterator it =
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GetAllocatorInitList().begin();
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it != GetAllocatorInitList().end(); it++) {
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(*it)();
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// constructor and destructor
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SmartAllocatorImpl::SmartAllocatorImpl(Name name, int itemSize)
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: m_itemSize(itemSizeRoundup(itemSize)) , m_name(name) {
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assert(itemSize > 0);
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MemoryManager::TheMemoryManager()->add(this);
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}
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SmartAllocatorImpl::~SmartAllocatorImpl() {
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}
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///////////////////////////////////////////////////////////////////////////////
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static bool UNUSED is_iterable_type(SmartAllocatorImpl::Name type) {
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return type == SmartAllocatorImpl::Variant ||
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type == SmartAllocatorImpl::RefData ||
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type == SmartAllocatorImpl::ObjectData ||
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type == SmartAllocatorImpl::StringData ||
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type == SmartAllocatorImpl::HphpArray;
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}
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SmartAllocatorImpl::Iterator::Iterator(const SmartAllocatorImpl* sa) {
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assert(is_iterable_type(sa->getAllocatorType()));
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next();
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}
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void* SmartAllocatorImpl::Iterator::current() const {
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return 0;
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}
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void SmartAllocatorImpl::Iterator::next() {
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}
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///////////////////////////////////////////////////////////////////////////////
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// ObjectAllocator classes
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ObjectAllocatorBase::ObjectAllocatorBase(int itemSize)
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: SmartAllocatorImpl(SmartAllocatorImpl::ObjectData, itemSize) {
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}
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///////////////////////////////////////////////////////////////////////////////
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}
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