| OLD | NEW |
| (Empty) |
| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef NET_SPDY_SPDY_PINNABLE_BUFFER_PIECE_H_ | |
| 6 #define NET_SPDY_SPDY_PINNABLE_BUFFER_PIECE_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 | |
| 10 #include <memory> | |
| 11 | |
| 12 #include "net/base/net_export.h" | |
| 13 #include "net/spdy/platform/api/spdy_string_piece.h" | |
| 14 | |
| 15 namespace net { | |
| 16 | |
| 17 class SpdyPrefixedBufferReader; | |
| 18 | |
| 19 // Helper class of SpdyPrefixedBufferReader. | |
| 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 | |
| 22 // a SpdyPinnableBufferPiece owns and retains storage of the buffer. | |
| 23 struct NET_EXPORT_PRIVATE SpdyPinnableBufferPiece { | |
| 24 public: | |
| 25 SpdyPinnableBufferPiece(); | |
| 26 ~SpdyPinnableBufferPiece(); | |
| 27 | |
| 28 const char * buffer() const { | |
| 29 return buffer_; | |
| 30 } | |
| 31 | |
| 32 size_t length() const { | |
| 33 return length_; | |
| 34 } | |
| 35 | |
| 36 explicit operator SpdyStringPiece() const { | |
| 37 return SpdyStringPiece(buffer_, length_); | |
| 38 } | |
| 39 | |
| 40 // Allocates and copies the buffer to internal storage. | |
| 41 void Pin(); | |
| 42 | |
| 43 bool IsPinned() const { return storage_ != nullptr; } | |
| 44 | |
| 45 // Swaps buffers, including internal storage, with |other|. | |
| 46 void Swap(SpdyPinnableBufferPiece* other); | |
| 47 | |
| 48 private: | |
| 49 friend class SpdyPrefixedBufferReader; | |
| 50 | |
| 51 const char * buffer_; | |
| 52 size_t length_; | |
| 53 // Null iff |buffer_| isn't pinned. | |
| 54 std::unique_ptr<char[]> storage_; | |
| 55 }; | |
| 56 | |
| 57 } // namespace net | |
| 58 | |
| 59 #endif // NET_SPDY_SPDY_PINNABLE_BUFFER_PIECE_H_ | |
| OLD | NEW |