// 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 NET_SPDY_SPDY_PREFIXED_BUFFER_READER_H_
#define NET_SPDY_SPDY_PREFIXED_BUFFER_READER_H_
#include "net/base/net_export.h"
#include "net/spdy/spdy_pinnable_buffer_piece.h"
namespace net {
// Reader class which simplifies reading contiguously from
// from a disjoint buffer prefix & suffix.
class NET_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 net
#endif // NET_SPDY_SPDY_PREFIXED_BUFFER_READER_H_