зеркало из https://github.com/mozilla/moz-skia.git
65 строки
1.2 KiB
C++
65 строки
1.2 KiB
C++
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/*
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* Copyright 2010 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef GrAllocPool_DEFINED
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#define GrAllocPool_DEFINED
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#include "GrNoncopyable.h"
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class GrAllocPool : GrNoncopyable {
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public:
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GrAllocPool(size_t blockSize = 0);
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~GrAllocPool();
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/**
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* Frees all blocks that have been allocated with alloc().
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*/
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void reset();
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/**
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* Returns a block of memory bytes size big. This address must not be
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* passed to realloc/free/delete or any other function that assumes the
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* address was allocated by malloc or new (because it hasn't).
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*/
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void* alloc(size_t bytes);
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/**
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* Releases the most recently allocated bytes back to allocpool.
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*/
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void release(size_t bytes);
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private:
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struct Block;
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Block* fBlock;
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size_t fMinBlockSize;
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#if GR_DEBUG
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int fBlocksAllocated;
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void validate() const;
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#else
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void validate() const {}
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#endif
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};
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template <typename T> class GrTAllocPool {
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public:
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GrTAllocPool(int count) : fPool(count * sizeof(T)) {}
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void reset() { fPool.reset(); }
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T* alloc() { return (T*)fPool.alloc(sizeof(T)); }
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private:
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GrAllocPool fPool;
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};
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#endif
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