Remove PODIntervalTree and machinery.

sky/engine/platform/PODFreeListArena.h

-/*
- * Copyright (C) 2011 Apple Inc.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef PODFreeListArena_h
-#define PODFreeListArena_h
-
-#include "platform/PODArena.h"
-
-namespace blink {
-
-template <class T>
-class PODFreeListArena : public RefCounted<PODFreeListArena<T> > {
-public:
-    static PassRefPtr<PODFreeListArena> create()
-    {
-        return adoptRef(new PODFreeListArena);
-    }
-
-    // Creates a new PODFreeListArena configured with the given Allocator.
-    static PassRefPtr<PODFreeListArena> create(PassRefPtr<PODArena::Allocator> allocator)
-    {
-        return adoptRef(new PODFreeListArena(allocator));
-    }
-
-    // Allocates an object from the arena.
-    T* allocateObject()
-    {
-        void* ptr = allocateFromFreeList();
-
-        if (ptr) {
-            // Use placement operator new to allocate a T at this location.
-            new(ptr) T();
-            return static_cast<T*>(ptr);
-        }
-
-        // PODArena::allocateObject calls T's constructor.
-        return static_cast<T*>(m_arena->allocateObject<T>());
-    }
-
-    template<class Argument1Type> T* allocateObject(const Argument1Type& argument1)
-    {
-        void* ptr = allocateFromFreeList();
-
-        if (ptr) {
-            // Use placement operator new to allocate a T at this location.
-            new(ptr) T(argument1);
-            return static_cast<T*>(ptr);
-        }
-
-        // PODArena::allocateObject calls T's constructor.
-        return static_cast<T*>(m_arena->allocateObject<T>(argument1));
-    }
-
-    void freeObject(T* ptr)
-    {
-        FixedSizeMemoryChunk* oldFreeList = m_freeList;
-
-        m_freeList = reinterpret_cast<FixedSizeMemoryChunk*>(ptr);
-        m_freeList->next = oldFreeList;
-    }
-
-private:
-    PODFreeListArena()
-        : m_arena(PODArena::create()), m_freeList(0) { }
-
-    explicit PODFreeListArena(PassRefPtr<PODArena::Allocator> allocator)
-        : m_arena(PODArena::create(allocator)), m_freeList(0) { }
-
-    ~PODFreeListArena() { }
-
-    void* allocateFromFreeList()
-    {
-        if (m_freeList) {
-            void* memory = m_freeList;
-            m_freeList = m_freeList->next;
-            return memory;
-        }
-        return 0;
-    }
-
-    int getFreeListSizeForTesting() const
-    {
-        int total = 0;
-        for (FixedSizeMemoryChunk* cur = m_freeList; cur; cur = cur->next) {
-            total++;
-        }
-        return total;
-    }
-
-    RefPtr<PODArena> m_arena;
-
-    // This free list contains pointers within every chunk that's been allocated so
-    // far. None of the individual chunks can be freed until the arena is
-    // destroyed.
-    struct FixedSizeMemoryChunk {
-        FixedSizeMemoryChunk* next;
-    };
-    FixedSizeMemoryChunk* m_freeList;
-
-    COMPILE_ASSERT(sizeof(T) >= sizeof(FixedSizeMemoryChunk), PODFreeListArena_type_should_be_larger);
-
-    friend class WTF::RefCounted<PODFreeListArena>;
-    friend class PODFreeListArenaTest;
-};
-
-} // namespace blink
-
-#endif