Jordan Delong
363d1bb20f
This change is mostly for FB internal organizational reasons. Building is not effected beyond the fact that the target now lands in hphp/hhvm/hhvm rather than src/hhvm/hhvm.
77 linhas
2.6 KiB
C++
77 linhas
2.6 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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#ifndef incl_HPHP_SWEEPABLE_H_
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#define incl_HPHP_SWEEPABLE_H_
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#include <util/base.h>
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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/*
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* Objects that need to do special clean up at the end of the request
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* may register themselves for this by deriving from Sweepable. After
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* every request, Sweepable::SweepAll is called so the objects may
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* clear out request-local allocations that are not smart-allocated.
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*/
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class Sweepable {
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public:
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struct Node {
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Node *next, *prev;
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void enlist(Node& head);
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void delist();
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void init();
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};
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static void SweepAll();
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static void InitSweepableList();
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public:
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Sweepable();
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virtual ~Sweepable();
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/*
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* Default sweep behavior is to delete ourselves. Note that this is
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* not appropriate for a smart-allocated class.
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*/
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virtual void sweep() { delete this; }
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/*
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* Note: "Persistent" here means that the object will stay alive
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* across requests, but *as a thread local*. It can be reused once
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* the same server thread gets around to handling a new request. If
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* you need this you probably should be using it via PersistentObjectStore.
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*/
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void incPersistent() { ++m_persistentCount; }
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void decPersistent() { --m_persistentCount; }
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bool isPersistent() { return m_persistentCount > 0; }
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/*
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* Remove this object from the sweepable list, so it won't have
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* sweep() called at the next SweepAll.
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*/
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void unregister();
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private:
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Node m_sweepNode;
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int m_persistentCount;
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};
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///////////////////////////////////////////////////////////////////////////////
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}
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#endif
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