jitcraft/Zone.h
author David Anderson <dvander@alliedmods.net>
Tue Jun 26 00:35:15 2012 -0700 (2012-06-26)
changeset 2 46fc53b8fd2f
parent 0 c455ebb9a5dc
child 11 a350c2cc736a
permissions -rw-r--r--
Added support for enums.
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/*
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 * Copyright (C) 2012 David Anderson
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 *
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 * This file is part of JITCraft.
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 *
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 * JITCraft is free software: you can redistribute it and/or modify it under
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 * the terms of the GNU General Public License as published by the Free
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 * Software Foundation, either version 3 of the License, or (at your option)
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 * any later version.
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 * 
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 * Foobar is distributed in the hope that it will be useful, but WITHOUT ANY
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 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License along with
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 * JITCraft. If not, see http://www.gnu.org/licenses/.
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 */
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#ifndef _include_jitcraft_thread_h_
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#define _include_jitcraft_thread_h_
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#include "PoolAllocator.h"
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#include "Stack.h"
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namespace jc {
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class Zone
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{
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    PoolAllocator pool_;
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    Stack stack_;
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    UnsafeStack unsafeStack_;
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  public:
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    bool initialize();
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    PoolAllocator &pool() {
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        return pool_;
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    }
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    Stack &stack() {
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        return stack_;
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    }
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    UnsafeStack &unsafeStack() {
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        return unsafeStack_;
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    }
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};
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// In a multi-threaded system, this would be a TLS variable.
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// In the interest of simplicity, we are single-threaded for now.
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extern Zone SingleThreadedZone;
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static inline Zone *ZONE()
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{
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    return &SingleThreadedZone;
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}
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class LocalTop
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{
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    Top *prev_;
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    Top &mine_;
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  public:
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    LocalTop(Top &mine)
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      : mine_(mine),
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        prev_(ZONE()->stack().top())
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    {
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        ZONE()->stack().setTop(&mine_);
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    }
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    ~LocalTop()
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    {
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        ZONE()->stack().setTop(prev_);
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    }
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};
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}
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#endif // _include_jitcraft_thread_h_