Split net/spdy into core and chromium subdirectories.

net/spdy/hpack/hpack_entry.h

-// Copyright 2014 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_HPACK_HPACK_ENTRY_H_
-#define NET_SPDY_HPACK_HPACK_ENTRY_H_
-
-#include <stddef.h>
-
-#include "base/macros.h"
-#include "net/base/net_export.h"
-#include "net/spdy/platform/api/spdy_string.h"
-#include "net/spdy/platform/api/spdy_string_piece.h"
-
-// All section references below are to
-// http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-08
-
-namespace net {
-
-// A structure for an entry in the static table (3.3.1)
-// and the header table (3.3.2).
-class NET_EXPORT_PRIVATE HpackEntry {
- public:
-  // The constant amount added to name().size() and value().size() to
-  // get the size of an HpackEntry as defined in 5.1.
-  static const size_t kSizeOverhead;
-
-  // Creates an entry. Preconditions:
-  // - |is_static| captures whether this entry is a member of the static
-  //   or dynamic header table.
-  // - |insertion_index| is this entry's index in the total set of entries ever
-  //   inserted into the header table (including static entries).
-  //
-  // The combination of |is_static| and |insertion_index| allows an
-  // HpackEntryTable to determine the index of an HpackEntry in O(1) time.
-  // Copies |name| and |value|.
-  HpackEntry(SpdyStringPiece name,
-             SpdyStringPiece value,
-             bool is_static,
-             size_t insertion_index);
-
-  // Create a 'lookup' entry (only) suitable for querying a HpackEntrySet. The
-  // instance InsertionIndex() always returns 0 and IsLookup() returns true.
-  // The memory backing |name| and |value| must outlive this object.
-  HpackEntry(SpdyStringPiece name, SpdyStringPiece value);
-
-  HpackEntry(const HpackEntry& other);
-  HpackEntry& operator=(const HpackEntry& other);
-
-  // Creates an entry with empty name and value. Only defined so that
-  // entries can be stored in STL containers.
-  HpackEntry();
-
-  ~HpackEntry();
-
-  SpdyStringPiece name() const { return name_ref_; }
-  SpdyStringPiece value() const { return value_ref_; }
-
-  // Returns whether this entry is a member of the static (as opposed to
-  // dynamic) table.
-  bool IsStatic() const { return type_ == STATIC; }
-
-  // Returns whether this entry is a lookup-only entry.
-  bool IsLookup() const { return type_ == LOOKUP; }
-
-  // Used to compute the entry's index in the header table.
-  size_t InsertionIndex() const { return insertion_index_; }
-
-  // Returns the size of an entry as defined in 5.1.
-  static size_t Size(SpdyStringPiece name, SpdyStringPiece value);
-  size_t Size() const;
-
-  SpdyString GetDebugString() const;
-
-  int64_t time_added() const { return time_added_; }
-  void set_time_added(int64_t now) { time_added_ = now; }
-
-  // Returns the estimate of dynamically allocated memory in bytes.
-  size_t EstimateMemoryUsage() const;
-
- private:
-  enum EntryType {
-    LOOKUP,
-    DYNAMIC,
-    STATIC,
-  };
-
-  // These members are not used for LOOKUP entries.
-  SpdyString name_;
-  SpdyString value_;
-
-  // These members are always valid. For DYNAMIC and STATIC entries, they
-  // always point to |name_| and |value_|.
-  SpdyStringPiece name_ref_;
-  SpdyStringPiece value_ref_;
-
-  // The entry's index in the total set of entries ever inserted into the header
-  // table.
-  size_t insertion_index_;
-
-  EntryType type_;
-
-  // For HpackHeaderTable::DebugVisitorInterface
-  int64_t time_added_;
-};
-
-}  // namespace net
-
-#endif  // NET_SPDY_HPACK_HPACK_ENTRY_H_