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Side by Side Diff: net/spdy/core/spdy_pinnable_buffer_piece.h

Issue 2895993003: Misc cleanup in net/spdy/core. (Closed)
Patch Set: Rebase. Created 3 years, 7 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 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 NET_SPDY_CORE_SPDY_PINNABLE_BUFFER_PIECE_H_ 5 #ifndef NET_SPDY_CORE_SPDY_PINNABLE_BUFFER_PIECE_H_
6 #define NET_SPDY_CORE_SPDY_PINNABLE_BUFFER_PIECE_H_ 6 #define NET_SPDY_CORE_SPDY_PINNABLE_BUFFER_PIECE_H_
7 7
8 #include <stddef.h> 8 #include <stddef.h>
9 9
10 #include <memory> 10 #include <memory>
11 11
12 #include "net/spdy/platform/api/spdy_export.h" 12 #include "net/spdy/platform/api/spdy_export.h"
13 #include "net/spdy/platform/api/spdy_string_piece.h" 13 #include "net/spdy/platform/api/spdy_string_piece.h"
14 14
15 namespace net { 15 namespace net {
16 16
17 class SpdyPrefixedBufferReader; 17 class SpdyPrefixedBufferReader;
18 18
19 // Helper class of SpdyPrefixedBufferReader. 19 // Helper class of SpdyPrefixedBufferReader.
20 // Represents a piece of consumed buffer which may (or may not) own its 20 // Represents a piece of consumed buffer which may (or may not) own its
21 // underlying storage. Users may "pin" the buffer at a later time to ensure 21 // underlying storage. Users may "pin" the buffer at a later time to ensure
22 // a SpdyPinnableBufferPiece owns and retains storage of the buffer. 22 // a SpdyPinnableBufferPiece owns and retains storage of the buffer.
23 struct SPDY_EXPORT_PRIVATE SpdyPinnableBufferPiece { 23 struct SPDY_EXPORT_PRIVATE SpdyPinnableBufferPiece {
24 public: 24 public:
25 SpdyPinnableBufferPiece(); 25 SpdyPinnableBufferPiece();
26 ~SpdyPinnableBufferPiece(); 26 ~SpdyPinnableBufferPiece();
27 27
28 const char * buffer() const { 28 const char* buffer() const { return buffer_; }
29 return buffer_;
30 }
31 29
32 size_t length() const { 30 size_t length() const { return length_; }
33 return length_;
34 }
35 31
36 explicit operator SpdyStringPiece() const { 32 explicit operator SpdyStringPiece() const {
37 return SpdyStringPiece(buffer_, length_); 33 return SpdyStringPiece(buffer_, length_);
38 } 34 }
39 35
40 // Allocates and copies the buffer to internal storage. 36 // Allocates and copies the buffer to internal storage.
41 void Pin(); 37 void Pin();
42 38
43 bool IsPinned() const { return storage_ != nullptr; } 39 bool IsPinned() const { return storage_ != nullptr; }
44 40
45 // Swaps buffers, including internal storage, with |other|. 41 // Swaps buffers, including internal storage, with |other|.
46 void Swap(SpdyPinnableBufferPiece* other); 42 void Swap(SpdyPinnableBufferPiece* other);
47 43
48 private: 44 private:
49 friend class SpdyPrefixedBufferReader; 45 friend class SpdyPrefixedBufferReader;
50 46
51 const char * buffer_; 47 const char* buffer_;
52 size_t length_; 48 size_t length_;
53 // Null iff |buffer_| isn't pinned. 49 // Null iff |buffer_| isn't pinned.
54 std::unique_ptr<char[]> storage_; 50 std::unique_ptr<char[]> storage_;
55 }; 51 };
56 52
57 } // namespace net 53 } // namespace net
58 54
59 #endif // NET_SPDY_CORE_SPDY_PINNABLE_BUFFER_PIECE_H_ 55 #endif // NET_SPDY_CORE_SPDY_PINNABLE_BUFFER_PIECE_H_
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