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ByteBlockPool.h
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1 
2 // Copyright (c) 2009-2014 Alan Wright. All rights reserved.
3 // Distributable under the terms of either the Apache License (Version 2.0)
4 // or the GNU Lesser General Public License.
6 
7 #ifndef BYTEBLOCKPOOL_H
8 #define BYTEBLOCKPOOL_H
9 
10 #include "LuceneObject.h"
11 
12 namespace Lucene {
13 
23 class ByteBlockPool : public LuceneObject {
24 public:
26  virtual ~ByteBlockPool();
27 
29 
30 public:
32  int32_t bufferUpto; // Which buffer we are up to
33  int32_t byteUpto; // Where we are in head buffer
34 
35  ByteArray buffer;
36  int32_t byteOffset;
37 
38  static const int32_t nextLevelArray[];
39  static const int32_t levelSizeArray[];
40 
41 protected:
44 
45 public:
46  static int32_t FIRST_LEVEL_SIZE();
47 
48  void reset();
49  void nextBuffer();
50  int32_t newSlice(int32_t size);
51  int32_t allocSlice(ByteArray slice, int32_t upto);
52 };
53 
55 public:
57 
59 
60 public:
61  virtual void recycleByteBlocks(Collection<ByteArray> blocks, int32_t start, int32_t end) = 0;
62  virtual void recycleByteBlocks(Collection<ByteArray> blocks) = 0;
63  virtual ByteArray getByteBlock(bool trackAllocations) = 0;
64 };
65 
66 }
67 
68 #endif

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