| 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_HPACK_INPUT_STREAM_H_ | |
| 6 #define NET_SPDY_HPACK_INPUT_STREAM_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/basictypes.h" | |
| 11 #include "base/macros.h" | |
| 12 #include "base/strings/string_piece.h" | |
| 13 #include "net/base/net_export.h" | |
| 14 #include "net/spdy/hpack_constants.h" | |
| 15 #include "net/spdy/hpack_huffman_table.h" | |
| 16 | |
| 17 // All section references below are to | |
| 18 // http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-08 | |
| 19 | |
| 20 namespace net { | |
| 21 | |
| 22 // An HpackInputStream handles all the low-level details of decoding | |
| 23 // header fields. | |
| 24 class NET_EXPORT_PRIVATE HpackInputStream { | |
| 25 public: | |
| 26 // |max_string_literal_size| is the largest that any one string | |
| 27 // literal (header name or header value) can be. | |
| 28 HpackInputStream(uint32 max_string_literal_size, base::StringPiece buffer); | |
| 29 ~HpackInputStream(); | |
| 30 | |
| 31 // Returns whether or not there is more data to process. | |
| 32 bool HasMoreData() const; | |
| 33 | |
| 34 // If the next bits of input match |prefix|, consumes them and returns true. | |
| 35 // Otherwise, consumes nothing and returns false. | |
| 36 bool MatchPrefixAndConsume(HpackPrefix prefix); | |
| 37 | |
| 38 // The Decode* functions return true and fill in their arguments if | |
| 39 // decoding was successful, or false if an error was encountered. | |
| 40 | |
| 41 bool DecodeNextUint32(uint32* I); | |
| 42 bool DecodeNextIdentityString(base::StringPiece* str); | |
| 43 bool DecodeNextHuffmanString(const HpackHuffmanTable& table, | |
| 44 std::string* str); | |
| 45 | |
| 46 // Stores input bits into the most-significant, unfilled bits of |out|. | |
| 47 // |peeked_count| is the number of filled bits in |out| which have been | |
| 48 // previously peeked. PeekBits() will fill some number of remaining bits, | |
| 49 // returning the new total number via |peeked_count|. Returns true if one | |
| 50 // or more additional bits could be peeked, and false otherwise. | |
| 51 bool PeekBits(size_t* peeked_count, uint32* out); | |
| 52 | |
| 53 // Consumes |count| bits of input. Generally paired with PeekBits(). | |
| 54 void ConsumeBits(size_t count); | |
| 55 | |
| 56 // If not currently on a byte boundary, consumes and discards | |
| 57 // remaining bits in the current byte. | |
| 58 void ConsumeByteRemainder(); | |
| 59 | |
| 60 // Accessors for testing. | |
| 61 | |
| 62 void SetBitOffsetForTest(size_t bit_offset) { | |
| 63 bit_offset_ = bit_offset; | |
| 64 } | |
| 65 | |
| 66 private: | |
| 67 const uint32 max_string_literal_size_; | |
| 68 base::StringPiece buffer_; | |
| 69 size_t bit_offset_; | |
| 70 | |
| 71 bool PeekNextOctet(uint8* next_octet); | |
| 72 | |
| 73 bool DecodeNextOctet(uint8* next_octet); | |
| 74 | |
| 75 DISALLOW_COPY_AND_ASSIGN(HpackInputStream); | |
| 76 }; | |
| 77 | |
| 78 } // namespace net | |
| 79 | |
| 80 #endif // NET_SPDY_HPACK_INPUT_STREAM_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 992733002:
Remove //net (except for Android test stuff) and sdch (Closed)
Base URL: git@github.com:domokit/mojo.git@master