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63 lines
2.4 KiB
C
63 lines
2.4 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_THIRD_PARTY_HTTP2_HPACK_HTTP2_HPACK_CONSTANTS_H_
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#define NET_THIRD_PARTY_HTTP2_HPACK_HTTP2_HPACK_CONSTANTS_H_
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// Enum HpackEntryType identifies the 5 basic types of HPACK Block Entries.
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//
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// See the spec for details:
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// https://http2.github.io/http2-spec/compression.html#rfc.section.6
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#include <ostream>
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#include "net/third_party/http2/platform/api/http2_export.h"
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#include "net/third_party/http2/platform/api/http2_string.h"
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namespace http2 {
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const size_t kFirstDynamicTableIndex = 62;
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enum class HpackEntryType {
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// Entry is an index into the static or dynamic table. Decoding it has no
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// effect on the dynamic table.
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kIndexedHeader,
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// The entry contains a literal value. The name may be either a literal or a
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// reference to an entry in the static or dynamic table.
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// The entry is added to the dynamic table after decoding.
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kIndexedLiteralHeader,
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// The entry contains a literal value. The name may be either a literal or a
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// reference to an entry in the static or dynamic table.
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// The entry is not added to the dynamic table after decoding, but a proxy
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// may choose to insert the entry into its dynamic table when forwarding
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// to another endpoint.
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kUnindexedLiteralHeader,
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// The entry contains a literal value. The name may be either a literal or a
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// reference to an entry in the static or dynamic table.
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// The entry is not added to the dynamic table after decoding, and a proxy
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// must NOT insert the entry into its dynamic table when forwarding to another
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// endpoint.
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kNeverIndexedLiteralHeader,
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// Entry conveys the size limit of the dynamic table of the encoder to
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// the decoder. May be used to flush the table by sending a zero and then
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// resetting the size back up to the maximum that the encoder will use
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// (within the limits of SETTINGS_HEADER_TABLE_SIZE sent by the
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// decoder to the encoder, with the default of 4096 assumed).
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kDynamicTableSizeUpdate,
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};
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// Returns the name of the enum member.
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HTTP2_EXPORT_PRIVATE Http2String HpackEntryTypeToString(HpackEntryType v);
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// Inserts the name of the enum member into |out|.
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HTTP2_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& out,
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HpackEntryType v);
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} // namespace http2
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#endif // NET_THIRD_PARTY_HTTP2_HPACK_HTTP2_HPACK_CONSTANTS_H_
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