DO NOT COMMIT: Implement HPACK (draft 03)

net/spdy/spdy_framer.h

 // 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_FRAMER_H_
 #define NET_SPDY_SPDY_FRAMER_H_
 
 #include <list>
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/sys_byteorder.h"
 #include "net/base/net_export.h"
+#include "net/spdy/http2_compressor.h"
+#include "net/spdy/http2_decompressor.h"
 #include "net/spdy/spdy_header_block.h"
 #include "net/spdy/spdy_protocol.h"
 
 typedef struct z_stream_s z_stream;  // Forward declaration for zlib.
 
 namespace net {
 
 class HttpProxyClientSocketPoolTest;
 class HttpNetworkLayer;
 class HttpNetworkTransactionTest;
@@ skipping 553 matching lines @@
 
   // Helpers for above internal breakouts from ProcessInput.
   void ProcessControlFrameHeader(uint16 control_frame_type_field);
   bool ProcessSetting(const char* data);  // Always passed exactly 8 bytes.
 
   // Retrieve serialized length of SpdyHeaderBlock. If compression is enabled, a
   // maximum estimate is returned.
   size_t GetSerializedLength(const SpdyHeaderBlock& headers);
 
   // Get (and lazily initialize) the ZLib state.
-  z_stream* GetHeaderCompressor();
-  z_stream* GetHeaderDecompressor();
+  z_stream* GetSpdyHeaderCompressor();
+  z_stream* GetSpdyHeaderDecompressor();
+
+  // Get (and lazily initialize) the HTTP/2 compression/decompression
+  // state.
+  Http2Compressor* GetHttp2HeaderCompressor();
+  Http2Decompressor* GetHttp2HeaderDecompressor();
 
  private:
   // Deliver the given control frame's uncompressed headers block to the
   // visitor in chunks. Returns true if the visitor has accepted all of the
   // chunks.
   bool IncrementallyDeliverControlFrameHeaderData(SpdyStreamId stream_id,
                                                   const char* data,
                                                   size_t len);
 
   // Utility to copy the given data block to the current frame buffer, up
@@ skipping 71 matching lines @@
   // The stream ID field of the frame currently being read, if applicable.
   SpdyStreamId current_frame_stream_id_;
 
   // Scratch space for handling SETTINGS frames.
   // TODO(hkhalil): Unify memory for this scratch space with
   // current_frame_buffer_.
   SpdySettingsScratch settings_scratch_;
 
   bool enable_compression_;  // Controls all compression
   // SPDY header compressors.
-  scoped_ptr<z_stream> header_compressor_;
-  scoped_ptr<z_stream> header_decompressor_;
+  scoped_ptr<z_stream> spdy_header_compressor_;
+  scoped_ptr<z_stream> spdy_header_decompressor_;
+  // HTTP/2 header compressors.
+  scoped_ptr<Http2Compressor> http2_header_compressor_;
+  scoped_ptr<Http2Decompressor> http2_header_decompressor_;
 
   SpdyFramerVisitorInterface* visitor_;
   SpdyFramerDebugVisitorInterface* debug_visitor_;
 
   std::string display_protocol_;
 
   // The major SPDY version to be spoken/understood by this framer.
   const SpdyMajorVersion spdy_version_;
 
   // Tracks if we've ever gotten far enough in framing to see a control frame of
   // type SYN_STREAM or SYN_REPLY.
   //
   // If we ever get something which looks like a data frame before we've had a
   // SYN, we explicitly check to see if it looks like we got an HTTP response to
   // a SPDY request.  This boolean lets us do that.
   bool syn_frame_processed_;
 
   // If we ever get a data frame before a SYN frame, we check to see if it
   // starts with HTTP.  If it does, we likely have an HTTP response.   This
   // isn't guaranteed though: we could have gotten a settings frame and then
   // corrupt data that just looks like HTTP, but deterministic checking requires
   // a lot more state.
   bool probable_http_response_;
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_FRAMER_H_