SPDY: Headers & Push-Promise now use Continuations

net/spdy/spdy_protocol.cc

 // 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.
 
 #include "net/spdy/spdy_protocol.h"
 
 namespace net {
 
 SpdyFrameWithNameValueBlockIR::SpdyFrameWithNameValueBlockIR(
     SpdyStreamId stream_id) : SpdyFrameWithFinIR(stream_id) {}
@@ skipping 593 matching lines @@
           return 12;
         default:
           LOG(DFATAL) << "Serializing unhandled GOAWAY status " << status;
           return -1;
       }
   }
   LOG(DFATAL) << "Unknown SpdyMajorVersion " << version;
   return -1;
 }
 
+size_t SpdyConstants::GetDataFrameMinimumSize() {
+  return 8;
+}
+
+size_t SpdyConstants::GetControlFrameHeaderSize(SpdyMajorVersion version) {
+  switch (version) {
+    case SPDY2:
+    case SPDY3:
+    case SPDY4:
+      return 8;
+  }
+  LOG(DFATAL) << "Unhandled SPDY version.";
+  return 0;
+}
+
+size_t SpdyConstants::GetPrefixLength(SpdyFrameType type,
+                                      SpdyMajorVersion version) {
+  if (type != DATA) {
+     return GetControlFrameHeaderSize(version);
+  } else {
+     return GetDataFrameMinimumSize();
+  }
+}
+
+size_t SpdyConstants::GetFrameMaximumSize(SpdyMajorVersion version) {
+  if (version < SPDY4) {
+    // 24-bit length field plus eight-byte frame header.
+    return ((1<<24) - 1) + 8;
+  } else {
+    // 14-bit length field.
+    return (1<<14) - 1;
+  }
+}
+
 void SpdyDataIR::Visit(SpdyFrameVisitor* visitor) const {
   return visitor->VisitData(*this);
 }
 
 void SpdySynStreamIR::Visit(SpdyFrameVisitor* visitor) const {
   return visitor->VisitSynStream(*this);
 }
 
 void SpdySynReplyIR::Visit(SpdyFrameVisitor* visitor) const {
   return visitor->VisitSynReply(*this);
@@ skipping 59 matching lines @@
 
 void SpdyPushPromiseIR::Visit(SpdyFrameVisitor* visitor) const {
   return visitor->VisitPushPromise(*this);
 }
 
 void SpdyContinuationIR::Visit(SpdyFrameVisitor* visitor) const {
   return visitor->VisitContinuation(*this);
 }
 
 }  // namespace net