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65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
// Copyright 2016 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_HTTP2_HPACK_DECODER_HPACK_BLOCK_DECODER_H_
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#define NET_HTTP2_HPACK_DECODER_HPACK_BLOCK_DECODER_H_
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// HpackBlockDecoder decodes an entire HPACK block (or the available portion
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// thereof in the DecodeBuffer) into entries, but doesn't include HPACK static
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// or dynamic table support, so table indices remain indices at this level.
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// Reports the entries to an HpackEntryDecoderListener.
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#include "base/logging.h"
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#include "base/macros.h"
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#include "net/http2/decoder/decode_buffer.h"
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#include "net/http2/decoder/decode_status.h"
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#include "net/http2/hpack/decoder/hpack_entry_decoder.h"
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#include "net/http2/hpack/decoder/hpack_entry_decoder_listener.h"
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#include "net/http2/platform/api/http2_export.h"
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#include "net/http2/platform/api/http2_string.h"
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namespace net {
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class HTTP2_EXPORT_PRIVATE HpackBlockDecoder {
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public:
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explicit HpackBlockDecoder(HpackEntryDecoderListener* listener)
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: listener_(listener) {
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DCHECK_NE(listener_, nullptr);
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}
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~HpackBlockDecoder() {}
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// Prepares the decoder to start decoding a new HPACK block. Expected
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// to be called from an implementation of Http2FrameDecoderListener's
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// OnHeadersStart or OnPushPromiseStart methods.
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void Reset() {
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DVLOG(2) << "HpackBlockDecoder::Reset";
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before_entry_ = true;
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}
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// Decode the fragment of the HPACK block contained in the decode buffer.
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// Expected to be called from an implementation of Http2FrameDecoderListener's
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// OnHpackFragment method.
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DecodeStatus Decode(DecodeBuffer* db);
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// Is the decoding process between entries (i.e. would the next byte be the
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// first byte of a new HPACK entry)?
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bool before_entry() const { return before_entry_; }
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Http2String DebugString() const;
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private:
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HpackEntryDecoder entry_decoder_;
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HpackEntryDecoderListener* const listener_;
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bool before_entry_ = true;
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DISALLOW_COPY_AND_ASSIGN(HpackBlockDecoder);
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};
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HTTP2_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& out,
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const HpackBlockDecoder& v);
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} // namespace net
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#endif // NET_HTTP2_HPACK_DECODER_HPACK_BLOCK_DECODER_H_
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