naiveproxy/net/spdy/header_coalescer.h

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2018-08-15 01:19:20 +03:00
// Copyright (c) 2016 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_HEADER_COALESCER_H_
#define NET_SPDY_HEADER_COALESCER_H_
#include "base/strings/string_piece.h"
#include "net/base/net_export.h"
#include "net/log/net_log_with_source.h"
#include "net/third_party/spdy/core/spdy_header_block.h"
#include "net/third_party/spdy/core/spdy_headers_handler_interface.h"
namespace net {
class NET_EXPORT_PRIVATE HeaderCoalescer
: public spdy::SpdyHeadersHandlerInterface {
public:
HeaderCoalescer(uint32_t max_header_list_size,
const NetLogWithSource& net_log);
void OnHeaderBlockStart() override {}
void OnHeader(base::StringPiece key, base::StringPiece value) override;
void OnHeaderBlockEnd(size_t uncompressed_header_bytes,
size_t compressed_header_bytes) override {}
spdy::SpdyHeaderBlock release_headers();
bool error_seen() const { return error_seen_; }
// Returns the estimate of dynamically allocated memory in bytes.
size_t EstimateMemoryUsage() const;
private:
// Helper to add a header. Return true on success.
bool AddHeader(base::StringPiece key, base::StringPiece value);
spdy::SpdyHeaderBlock headers_;
bool headers_valid_ = true;
size_t header_list_size_ = 0;
bool error_seen_ = false;
bool regular_header_seen_ = false;
const uint32_t max_header_list_size_;
NetLogWithSource net_log_;
};
} // namespace net
#endif // NET_SPDY_HEADER_COALESCER_H_