aalexandre
56 linhas
2.0 KiB
C++
56 linhas
2.0 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 "shared_memory_allocator.h"
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#include "exception.h"
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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const char *SharedMemoryManager::Name = "HPHPSharedMemory";
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boost::interprocess::managed_shared_memory *
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SharedMemoryManager::Segment = nullptr;
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// just to make valgrind cleaner
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class SharedMemoryManagerUninitializer {
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public:
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~SharedMemoryManagerUninitializer() {
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SharedMemoryManager::Reset();
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}
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};
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static SharedMemoryManagerUninitializer s_smm_uninitializer;
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void SharedMemoryManager::Init(int size, bool clean) {
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try {
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if (Segment == nullptr) {
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if (clean) {
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boost::interprocess::shared_memory_object::remove(Name);
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}
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Segment = new boost::interprocess::managed_shared_memory
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(boost::interprocess::open_or_create, Name, size);
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}
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} catch (std::exception &e) {
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throw Exception(e.what()); // so we have stacktrace
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}
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}
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void SharedMemoryManager::Reset() {
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delete Segment;
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}
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///////////////////////////////////////////////////////////////////////////////
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}
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