Split net/spdy into core and chromium subdirectories.

net/spdy/hpack/hpack_output_stream.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_OUTPUT_STREAM_H_
-#define NET_SPDY_HPACK_HPACK_OUTPUT_STREAM_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <map>
-
-#include "base/macros.h"
-#include "net/base/net_export.h"
-#include "net/spdy/hpack/hpack_constants.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 {
-
-// An HpackOutputStream handles all the low-level details of encoding
-// header fields.
-class NET_EXPORT_PRIVATE HpackOutputStream {
- public:
-  HpackOutputStream();
-  ~HpackOutputStream();
-
-  // Appends the lower |bit_size| bits of |bits| to the internal buffer.
-  //
-  // |bit_size| must be > 0 and <= 8. |bits| must not have any bits
-  // set other than the lower |bit_size| bits.
-  void AppendBits(uint8_t bits, size_t bit_size);
-
-  // Simply forwards to AppendBits(prefix.bits, prefix.bit-size).
-  void AppendPrefix(HpackPrefix prefix);
-
-  // Directly appends |buffer|.
-  void AppendBytes(SpdyStringPiece buffer);
-
-  // Appends the given integer using the representation described in
-  // 6.1. If the internal buffer ends on a byte boundary, the prefix
-  // length N is taken to be 8; otherwise, it is taken to be the
-  // number of bits to the next byte boundary.
-  //
-  // It is guaranteed that the internal buffer will end on a byte
-  // boundary after this function is called.
-  void AppendUint32(uint32_t I);
-
-  // Swaps the internal buffer with |output|, then resets state.
-  void TakeString(SpdyString* output);
-
-  // Gives up to |max_size| bytes of the internal buffer to |output|. Resets
-  // internal state with the overflow.
-  void BoundedTakeString(size_t max_size, SpdyString* output);
-
-  // Size in bytes of stream's internal buffer.
-  size_t size() const { return buffer_.size(); }
-
-  // Returns the estimate of dynamically allocated memory in bytes.
-  size_t EstimateMemoryUsage() const;
-
- private:
-  // The internal bit buffer.
-  SpdyString buffer_;
-
-  // If 0, the buffer ends on a byte boundary. If non-zero, the buffer
-  // ends on the nth most significant bit. Guaranteed to be < 8.
-  size_t bit_offset_;
-
-  DISALLOW_COPY_AND_ASSIGN(HpackOutputStream);
-};
-
-}  // namespace net
-
-#endif  // NET_SPDY_HPACK_HPACK_OUTPUT_STREAM_H_