Index: net/spdy/spdy_frame_builder.h |
diff --git a/net/spdy/spdy_frame_builder.h b/net/spdy/spdy_frame_builder.h |
deleted file mode 100644 |
index bd709770c702a7e856f635b2f00c3d6aa2aa7d64..0000000000000000000000000000000000000000 |
--- a/net/spdy/spdy_frame_builder.h |
+++ /dev/null |
@@ -1,152 +0,0 @@ |
-// Copyright (c) 2012 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_SPDY_FRAME_BUILDER_H_ |
-#define NET_SPDY_SPDY_FRAME_BUILDER_H_ |
- |
-#include <string> |
- |
-#include "base/basictypes.h" |
-#include "base/memory/scoped_ptr.h" |
-#include "base/strings/string_piece.h" |
-#include "base/sys_byteorder.h" |
-#include "net/base/net_export.h" |
-#include "net/spdy/spdy_protocol.h" |
- |
-namespace net { |
- |
-class SpdyFramer; |
- |
-// This class provides facilities for basic binary value packing |
-// into Spdy frames. |
-// |
-// The SpdyFrameBuilder supports appending primitive values (int, string, etc) |
-// to a frame instance. The SpdyFrameBuilder grows its internal memory buffer |
-// dynamically to hold the sequence of primitive values. The internal memory |
-// buffer is exposed as the "data" of the SpdyFrameBuilder. |
-class NET_EXPORT_PRIVATE SpdyFrameBuilder { |
- public: |
- // Initializes a SpdyFrameBuilder with a buffer of given size |
- SpdyFrameBuilder(size_t size, SpdyMajorVersion version); |
- |
- ~SpdyFrameBuilder(); |
- |
- // Returns the total size of the SpdyFrameBuilder's data, which may include |
- // multiple frames. |
- size_t length() const { return offset_ + length_; } |
- |
- // Returns a writeable buffer of given size in bytes, to be appended to the |
- // currently written frame. Does bounds checking on length but does not |
- // increment the underlying iterator. To do so, consumers should subsequently |
- // call Seek(). |
- // In general, consumers should use Write*() calls instead of this. |
- // Returns NULL on failure. |
- char* GetWritableBuffer(size_t length); |
- |
- // Seeks forward by the given number of bytes. Useful in conjunction with |
- // GetWriteableBuffer() above. |
- bool Seek(size_t length); |
- |
- // Populates this frame with a SPDY control frame header using |
- // version-specific information from the |framer| and length information from |
- // capacity_. The given type must be a control frame type. |
- // Used only for SPDY versions <4. |
- bool WriteControlFrameHeader(const SpdyFramer& framer, |
- SpdyFrameType type, |
- uint8 flags); |
- |
- // Populates this frame with a SPDY data frame header using version-specific |
- // information from the |framer| and length information from capacity_. |
- bool WriteDataFrameHeader(const SpdyFramer& framer, |
- SpdyStreamId stream_id, |
- uint8 flags); |
- |
- // Populates this frame with a SPDY4/HTTP2 frame prefix using |
- // version-specific information from the |framer| and length information from |
- // capacity_. The given type must be a control frame type. |
- // Used only for SPDY versions >=4. |
- bool BeginNewFrame(const SpdyFramer& framer, |
- SpdyFrameType type, |
- uint8 flags, |
- SpdyStreamId stream_id); |
- |
- // Takes the buffer from the SpdyFrameBuilder. |
- SpdyFrame* take() { |
- if (version_ > SPDY3) { |
- DLOG_IF(DFATAL, SpdyConstants::GetFrameMaximumSize(version_) < length_) |
- << "Frame length " << length_ |
- << " is longer than the maximum allowed length."; |
- } |
- SpdyFrame* rv = new SpdyFrame(buffer_.release(), length(), true); |
- capacity_ = 0; |
- length_ = 0; |
- offset_ = 0; |
- return rv; |
- } |
- |
- // Methods for adding to the payload. These values are appended to the end |
- // of the SpdyFrameBuilder payload. Note - binary integers are converted from |
- // host to network form. |
- bool WriteUInt8(uint8 value) { |
- return WriteBytes(&value, sizeof(value)); |
- } |
- bool WriteUInt16(uint16 value) { |
- value = htons(value); |
- return WriteBytes(&value, sizeof(value)); |
- } |
- bool WriteUInt24(uint32 value) { |
- value = htonl(value); |
- return WriteBytes(reinterpret_cast<char*>(&value) + 1, |
- sizeof(value) - 1); |
- } |
- bool WriteUInt32(uint32 value) { |
- value = htonl(value); |
- return WriteBytes(&value, sizeof(value)); |
- } |
- bool WriteUInt64(uint64 value) { |
- uint32 upper = htonl(value >> 32); |
- uint32 lower = htonl(static_cast<uint32>(value)); |
- return (WriteBytes(&upper, sizeof(upper)) && |
- WriteBytes(&lower, sizeof(lower))); |
- } |
- // TODO(hkhalil) Rename to WriteStringPiece16(). |
- bool WriteString(const std::string& value); |
- bool WriteStringPiece32(const base::StringPiece& value); |
- bool WriteBytes(const void* data, uint32 data_len); |
- |
- // Update (in-place) the length field in the frame being built to reflect the |
- // current actual length of bytes written to said frame through this builder. |
- // The framer parameter is used to determine version-specific location and |
- // size information of the length field to be written, and must be initialized |
- // with the correct version for the frame being written. |
- bool RewriteLength(const SpdyFramer& framer); |
- |
- // Update (in-place) the length field in the frame being built to reflect the |
- // given length. |
- // The framer parameter is used to determine version-specific location and |
- // size information of the length field to be written, and must be initialized |
- // with the correct version for the frame being written. |
- bool OverwriteLength(const SpdyFramer& framer, size_t length); |
- |
- // Update (in-place) the flags field in the frame being built to reflect the |
- // given flags value. |
- // Used only for SPDY versions >=4. |
- bool OverwriteFlags(const SpdyFramer& framer, uint8 flags); |
- |
- private: |
- // Checks to make sure that there is an appropriate amount of space for a |
- // write of given size, in bytes. |
- bool CanWrite(size_t length) const; |
- |
- scoped_ptr<char[]> buffer_; |
- size_t capacity_; // Allocation size of payload, set by constructor. |
- size_t length_; // Length of the latest frame in the buffer. |
- size_t offset_; // Position at which the latest frame begins. |
- |
- const SpdyMajorVersion version_; |
-}; |
- |
-} // namespace net |
- |
-#endif // NET_SPDY_SPDY_FRAME_BUILDER_H_ |