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_PREFIXED_BUFFER_READER_H_ 6 #define NET_SPDY_SPDY_PREFIXED_BUFFER_READER_H_ 7 8 #include "net/base/net_export.h" 9 #include "net/spdy/spdy_pinnable_buffer_piece.h" 10 11 namespace net { 12 13 // Reader class which simplifies reading contiguously from 14 // from a disjoint buffer prefix & suffix. 15 class NET_EXPORT_PRIVATE SpdyPrefixedBufferReader { 16 public: 17 SpdyPrefixedBufferReader(const char* prefix, size_t prefix_length, 18 const char* suffix, size_t suffix_length); 19 20 // Returns number of bytes available to be read. 21 size_t Available(); 22 23 // Reads |count| bytes, copying into |*out|. Returns true on success, 24 // false if not enough bytes were available. 25 bool ReadN(size_t count, char* out); 26 27 // Reads |count| bytes, returned in |*out|. Returns true on success, 28 // false if not enough bytes were available. 29 bool ReadN(size_t count, SpdyPinnableBufferPiece* out); 30 31 private: 32 const char* prefix_; 33 const char* suffix_; 34 35 size_t prefix_length_; 36 size_t suffix_length_; 37 }; 38 39 } // namespace net 40 41 #endif // NET_SPDY_SPDY_PREFIXED_BUFFER_READER_H_ 42
