| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef QUICHE_SPDY_CORE_SPDY_PREFIXED_BUFFER_READER_H_ |
| #define QUICHE_SPDY_CORE_SPDY_PREFIXED_BUFFER_READER_H_ |
| |
| #include <stddef.h> |
| |
| #include "quiche/common/platform/api/quiche_export.h" |
| #include "quiche/spdy/core/spdy_pinnable_buffer_piece.h" |
| |
| namespace spdy { |
| |
| // Reader class which simplifies reading contiguously from |
| // from a disjoint buffer prefix & suffix. |
| class QUICHE_EXPORT_PRIVATE SpdyPrefixedBufferReader { |
| public: |
| SpdyPrefixedBufferReader(const char* prefix, size_t prefix_length, |
| const char* suffix, size_t suffix_length); |
| |
| // Returns number of bytes available to be read. |
| size_t Available(); |
| |
| // Reads |count| bytes, copying into |*out|. Returns true on success, |
| // false if not enough bytes were available. |
| bool ReadN(size_t count, char* out); |
| |
| // Reads |count| bytes, returned in |*out|. Returns true on success, |
| // false if not enough bytes were available. |
| bool ReadN(size_t count, SpdyPinnableBufferPiece* out); |
| |
| private: |
| const char* prefix_; |
| const char* suffix_; |
| |
| size_t prefix_length_; |
| size_t suffix_length_; |
| }; |
| |
| } // namespace spdy |
| |
| #endif // QUICHE_SPDY_CORE_SPDY_PREFIXED_BUFFER_READER_H_ |