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 689fbcd4a64e95451bea3301bf318f3de879b926..0000000000000000000000000000000000000000 |
--- a/net/spdy/spdy_frame_builder.h |
+++ /dev/null |
@@ -1,168 +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 <stddef.h> |
-#include <stdint.h> |
- |
-#include <memory> |
- |
-#include "base/gtest_prod_util.h" |
-#include "base/sys_byteorder.h" |
-#include "net/base/net_export.h" |
-#include "net/spdy/platform/api/spdy_string_piece.h" |
-#include "net/spdy/spdy_bug_tracker.h" |
-#include "net/spdy/spdy_protocol.h" |
-#include "net/spdy/zero_copy_output_buffer.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 |
- explicit SpdyFrameBuilder(size_t size); |
- // Doesn't take ownership of output. |
- SpdyFrameBuilder(size_t size, ZeroCopyOutputBuffer* output); |
- |
- ~SpdyFrameBuilder(); |
- |
- // Returns the total size of the SpdyFrameBuilder's data, which may include |
- // multiple frames. |
- size_t length() const { return offset_ + 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 HTTP2 frame prefix using length information |
- // from |capacity_|. The given type must be a control frame type. |
- bool BeginNewFrame(const SpdyFramer& framer, |
- SpdyFrameType type, |
- uint8_t flags, |
- SpdyStreamId stream_id); |
- |
- // Populates this frame with a HTTP2 frame prefix with type and length |
- // information. |type| must be a defined type. |
- bool BeginNewFrame(const SpdyFramer& framer, |
- SpdyFrameType type, |
- uint8_t flags, |
- SpdyStreamId stream_id, |
- size_t length); |
- |
- // Populates this frame with a HTTP2 frame prefix with type and length |
- // information. |raw_frame_type| must not be a defined frame type. |
- bool BeginNewExtensionFrame(const SpdyFramer& framer, |
- uint8_t raw_frame_type, |
- uint8_t flags, |
- SpdyStreamId stream_id, |
- size_t length); |
- |
- // Takes the buffer from the SpdyFrameBuilder. |
- SpdySerializedFrame take() { |
- SPDY_BUG_IF(output_ != nullptr) << "ZeroCopyOutputBuffer is used to build " |
- << "frames. take() shouldn't be called"; |
- SPDY_BUG_IF(kMaxFrameSizeLimit < length_) |
- << "Frame length " << length_ |
- << " is longer than the maximum possible allowed length."; |
- SpdySerializedFrame rv(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_t value) { return WriteBytes(&value, sizeof(value)); } |
- bool WriteUInt16(uint16_t value) { |
- value = base::HostToNet16(value); |
- return WriteBytes(&value, sizeof(value)); |
- } |
- bool WriteUInt24(uint32_t value) { |
- value = base::HostToNet32(value); |
- return WriteBytes(reinterpret_cast<char*>(&value) + 1, |
- sizeof(value) - 1); |
- } |
- bool WriteUInt32(uint32_t value) { |
- value = base::HostToNet32(value); |
- return WriteBytes(&value, sizeof(value)); |
- } |
- bool WriteUInt64(uint64_t value) { |
- uint32_t upper = base::HostToNet32(static_cast<uint32_t>(value >> 32)); |
- uint32_t lower = base::HostToNet32(static_cast<uint32_t>(value)); |
- return (WriteBytes(&upper, sizeof(upper)) && |
- WriteBytes(&lower, sizeof(lower))); |
- } |
- bool WriteStringPiece16(const SpdyStringPiece& value); |
- bool WriteStringPiece32(const SpdyStringPiece& value); |
- bool WriteBytes(const void* data, uint32_t data_len); |
- |
- // 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); |
- |
- private: |
- FRIEND_TEST_ALL_PREFIXES(SpdyFrameBuilderTest, GetWritableBuffer); |
- FRIEND_TEST_ALL_PREFIXES(SpdyFrameBuilderTest, GetWritableOutput); |
- FRIEND_TEST_ALL_PREFIXES(SpdyFrameBuilderTest, GetWritableOutputNegative); |
- |
- // Populates this frame with a HTTP2 frame prefix with type and length |
- // information. |
- bool BeginNewFrameInternal(const SpdyFramer& framer, |
- uint8_t raw_frame_type, |
- uint8_t flags, |
- SpdyStreamId stream_id, |
- size_t 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); |
- char* GetWritableOutput(size_t desired_length, size_t* actual_length); |
- |
- // 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; |
- |
- // A buffer to be created whenever a new frame needs to be written. Used only |
- // if |output_| is nullptr. |
- std::unique_ptr<char[]> buffer_; |
- // A pre-allocated buffer. If not-null, serialized frame data is written to |
- // this buffer. |
- ZeroCopyOutputBuffer* output_ = nullptr; // Does not own. |
- |
- 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. |
- |
- // Remove all four below after |
- // FLAGS_chromium_http2_flag_remove_rewritelength deprecates. |
- const size_t kLengthFieldLength = 3; |
- char* start_of_current_frame_ = nullptr; |
- size_t bytes_of_length_written_in_first_block_ = kLengthFieldLength; |
- // In case length of a new frame is cross blocks. |
- char* start_of_current_frame_in_next_block_ = nullptr; |
-}; |
- |
-} // namespace net |
- |
-#endif // NET_SPDY_SPDY_FRAME_BUILDER_H_ |