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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef BASE_REF_COUNTED_MEMORY_H_ | 5 #ifndef BASE_REF_COUNTED_MEMORY_H_ |
| 6 #define BASE_REF_COUNTED_MEMORY_H_ | 6 #define BASE_REF_COUNTED_MEMORY_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include <vector> | 9 #include <vector> |
| 10 | 10 |
| 11 #include "base/ref_counted.h" | 11 #include "base/ref_counted.h" |
| (...skipping 21 matching lines...) Expand all Loading... |
| 33 | 33 |
| 34 // An implementation of RefCountedMemory, where the ref counting does not | 34 // An implementation of RefCountedMemory, where the ref counting does not |
| 35 // matter. | 35 // matter. |
| 36 class RefCountedStaticMemory : public RefCountedMemory { | 36 class RefCountedStaticMemory : public RefCountedMemory { |
| 37 public: | 37 public: |
| 38 RefCountedStaticMemory() | 38 RefCountedStaticMemory() |
| 39 : data_(NULL), length_(0) {} | 39 : data_(NULL), length_(0) {} |
| 40 RefCountedStaticMemory(const unsigned char* data, size_t length) | 40 RefCountedStaticMemory(const unsigned char* data, size_t length) |
| 41 : data_(data), length_(length) {} | 41 : data_(data), length_(length) {} |
| 42 | 42 |
| 43 // Overriden from RefCountedMemory: |
| 43 virtual const unsigned char* front() const; | 44 virtual const unsigned char* front() const; |
| 44 virtual size_t size() const; | 45 virtual size_t size() const; |
| 45 | 46 |
| 46 private: | 47 private: |
| 47 const unsigned char* data_; | 48 const unsigned char* data_; |
| 48 size_t length_; | 49 size_t length_; |
| 49 | 50 |
| 50 DISALLOW_COPY_AND_ASSIGN(RefCountedStaticMemory); | 51 DISALLOW_COPY_AND_ASSIGN(RefCountedStaticMemory); |
| 51 }; | 52 }; |
| 52 | 53 |
| 53 // An implementation of RefCountedMemory, where we own our the data in a | 54 // An implementation of RefCountedMemory, where we own our the data in a |
| 54 // vector. | 55 // vector. |
| 55 class RefCountedBytes : public RefCountedMemory { | 56 class RefCountedBytes : public RefCountedMemory { |
| 56 public: | 57 public: |
| 58 RefCountedBytes(); |
| 59 |
| 60 // Constructs a RefCountedBytes object by _copying_ from |initializer|. |
| 61 RefCountedBytes(const std::vector<unsigned char>& initializer); |
| 62 |
| 57 // Constructs a RefCountedBytes object by performing a swap. (To non | 63 // Constructs a RefCountedBytes object by performing a swap. (To non |
| 58 // destructively build a RefCountedBytes, use the constructor that takes a | 64 // destructively build a RefCountedBytes, use the constructor that takes a |
| 59 // vector.) | 65 // vector.) |
| 60 static RefCountedBytes* TakeVector(std::vector<unsigned char>* to_destroy); | 66 static RefCountedBytes* TakeVector(std::vector<unsigned char>* to_destroy); |
| 61 | 67 |
| 62 RefCountedBytes(); | 68 // Overriden from RefCountedMemory: |
| 63 | |
| 64 // Constructs a RefCountedBytes object by _copying_ from |initializer|. | |
| 65 RefCountedBytes(const std::vector<unsigned char>& initializer); | |
| 66 | |
| 67 virtual const unsigned char* front() const; | 69 virtual const unsigned char* front() const; |
| 68 virtual size_t size() const; | 70 virtual size_t size() const; |
| 69 | 71 |
| 70 std::vector<unsigned char> data; | 72 std::vector<unsigned char> data; |
| 71 | 73 |
| 72 protected: | 74 protected: |
| 73 friend class base::RefCountedThreadSafe<RefCountedBytes>; | 75 friend class base::RefCountedThreadSafe<RefCountedBytes>; |
| 74 virtual ~RefCountedBytes(); | 76 virtual ~RefCountedBytes(); |
| 75 | 77 |
| 76 private: | 78 private: |
| 77 DISALLOW_COPY_AND_ASSIGN(RefCountedBytes); | 79 DISALLOW_COPY_AND_ASSIGN(RefCountedBytes); |
| 78 }; | 80 }; |
| 79 | 81 |
| 80 #endif // BASE_REF_COUNTED_MEMORY_H_ | 82 #endif // BASE_REF_COUNTED_MEMORY_H_ |
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