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55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
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// 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_DECODER_PAYLOAD_DECODERS_SETTINGS_PAYLOAD_DECODER_H_
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#define NET_HTTP2_DECODER_PAYLOAD_DECODERS_SETTINGS_PAYLOAD_DECODER_H_
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// Decodes the payload of a SETTINGS frame; for the RFC, see:
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// http://httpwg.org/specs/rfc7540.html#SETTINGS
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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/decoder/frame_decoder_state.h"
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#include "net/http2/http2_structures.h"
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#include "net/http2/platform/api/http2_export.h"
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namespace net {
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namespace test {
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class SettingsPayloadDecoderPeer;
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} // namespace test
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class HTTP2_EXPORT_PRIVATE SettingsPayloadDecoder {
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public:
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// Starts the decoding of a SETTINGS frame's payload, and completes it if
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// the entire payload is in the provided decode buffer.
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DecodeStatus StartDecodingPayload(FrameDecoderState* state, DecodeBuffer* db);
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// Resumes decoding a SETTINGS frame that has been split across decode
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// buffers.
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DecodeStatus ResumeDecodingPayload(FrameDecoderState* state,
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DecodeBuffer* db);
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private:
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friend class test::SettingsPayloadDecoderPeer;
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// Decodes as many settings as are available in the decode buffer, starting at
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// the first byte of one setting; if a single setting is split across buffers,
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// ResumeDecodingPayload will handle starting from where the previous call
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// left off, and then will call StartDecodingSettings.
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DecodeStatus StartDecodingSettings(FrameDecoderState* state,
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DecodeBuffer* db);
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// Decoding a single SETTING returned a status other than kDecodeDone; this
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// method just brings together the DCHECKs to reduce duplication.
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DecodeStatus HandleNotDone(FrameDecoderState* state,
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DecodeBuffer* db,
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DecodeStatus status);
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Http2SettingFields setting_fields_;
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};
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} // namespace net
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#endif // NET_HTTP2_DECODER_PAYLOAD_DECODERS_SETTINGS_PAYLOAD_DECODER_H_
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