Tim Starling
59 linhas
2.0 KiB
C++
59 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) 2010-2013 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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#ifndef incl_HPHP_VM_REQUEST_ARENA_H_
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#define incl_HPHP_VM_REQUEST_ARENA_H_
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#include <boost/aligned_storage.hpp>
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#include "hphp/util/arena.h"
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namespace HPHP {
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//////////////////////////////////////////////////////////////////////
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typedef ArenaImpl<32 * 1024> RequestArena;
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typedef boost::aligned_storage<sizeof(RequestArena),sizeof(void*)>::type
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RequestArenaStorage;
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extern __thread RequestArenaStorage s_requestArenaStorage;
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typedef Arena VarEnvArena;
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typedef boost::aligned_storage<sizeof(VarEnvArena),sizeof(void*)>::type
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VarEnvArenaStorage;
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extern __thread VarEnvArenaStorage s_varEnvArenaStorage;
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/*
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* Access to a request-lifetime arena allocator.
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*/
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inline RequestArena& request_arena() {
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void* vp = &s_requestArenaStorage;
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return *static_cast<RequestArena*>(vp);
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}
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/*
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* Access to a arena that has allocation lifetimes matching the
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* current VarEnv.
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*/
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inline VarEnvArena& varenv_arena() {
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void* vp = &s_varEnvArenaStorage;
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return *static_cast<VarEnvArena*>(vp);
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}
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//////////////////////////////////////////////////////////////////////
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}
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#endif
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