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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef NET_SPDY_HPACK_HPACK_STATIC_TABLE_H_ | |
| 6 #define NET_SPDY_HPACK_HPACK_STATIC_TABLE_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 | |
| 10 #include "net/base/net_export.h" | |
| 11 #include "net/spdy/hpack/hpack_header_table.h" | |
| 12 | |
| 13 namespace net { | |
| 14 | |
| 15 struct HpackStaticEntry; | |
| 16 | |
| 17 // HpackStaticTable provides |static_entries_| and |static_index_| for HPACK | |
| 18 // encoding and decoding contexts. Once initialized, an instance is read only | |
| 19 // and may be accessed only through its const interface. Such an instance may | |
| 20 // be shared accross multiple HPACK contexts. | |
| 21 class NET_EXPORT_PRIVATE HpackStaticTable { | |
| 22 public: | |
| 23 HpackStaticTable(); | |
| 24 ~HpackStaticTable(); | |
| 25 | |
| 26 // Prepares HpackStaticTable by filling up static_entries_ and static_index_ | |
| 27 // from an array of struct HpackStaticEntry. Must be called exactly once. | |
| 28 void Initialize(const HpackStaticEntry* static_entry_table, | |
| 29 size_t static_entry_count); | |
| 30 | |
| 31 // Returns whether Initialize() has been called. | |
| 32 bool IsInitialized() const; | |
| 33 | |
| 34 // Accessors. | |
| 35 const HpackHeaderTable::EntryTable& GetStaticEntries() const { | |
| 36 return static_entries_; | |
| 37 } | |
| 38 const HpackHeaderTable::UnorderedEntrySet& GetStaticIndex() const { | |
| 39 return static_index_; | |
| 40 } | |
| 41 const HpackHeaderTable::NameToEntryMap& GetStaticNameIndex() const { | |
| 42 return static_name_index_; | |
| 43 } | |
| 44 | |
| 45 // Returns the estimate of dynamically allocated memory in bytes. | |
| 46 size_t EstimateMemoryUsage() const; | |
| 47 | |
| 48 private: | |
| 49 HpackHeaderTable::EntryTable static_entries_; | |
| 50 HpackHeaderTable::UnorderedEntrySet static_index_; | |
| 51 HpackHeaderTable::NameToEntryMap static_name_index_; | |
| 52 }; | |
| 53 | |
| 54 } // namespace net | |
| 55 | |
| 56 #endif // NET_SPDY_HPACK_HPACK_STATIC_TABLE_H_ | |
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