diff options
Diffstat (limited to 'net/spdy/spdy_framer.h')
| -rw-r--r-- | net/spdy/spdy_framer.h | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/net/spdy/spdy_framer.h b/net/spdy/spdy_framer.h index 783dd7c..78fb2bc 100644 --- a/net/spdy/spdy_framer.h +++ b/net/spdy/spdy_framer.h @@ -44,8 +44,8 @@ class TestSpdyVisitor; } // namespace test -// A datastructure for holding a set of headers from either a -// SYN_STREAM or SYN_REPLY frame. +// A datastructure for holding a set of headers from a HEADERS, PUSH_PROMISE, +// SYN_STREAM, or SYN_REPLY frame. typedef std::map<std::string, std::string> SpdyHeaderBlock; // A datastructure for holding the ID and flag fields for SETTINGS. @@ -111,10 +111,11 @@ struct NET_EXPORT_PRIVATE SpdySettingsScratch { // Implement this interface to receive event callbacks as frames are // decoded from the framer. // -// Control frames that contain SPDY header blocks (SYN_STREAM, SYN_REPLY, and -// HEADER) are processed in fashion that allows the decompressed header block -// to be delivered in chunks to the visitor. The following steps are followed: -// 1. OnSynStream, OnSynReply or OnHeaders is called. +// Control frames that contain SPDY header blocks (SYN_STREAM, SYN_REPLY, +// HEADER, and PUSH_PROMISE) are processed in fashion that allows the +// decompressed header block to be delivered in chunks to the visitor. +// The following steps are followed: +// 1. OnSynStream, OnSynReply, OnHeaders, or OnPushPromise is called. // 2. Repeated: OnControlFrameHeaderData is called with chunks of the // decompressed header block. In each call the len parameter is greater // than zero. @@ -156,7 +157,7 @@ class NET_EXPORT_PRIVATE SpdyFramerVisitorInterface { virtual void OnHeaders(SpdyStreamId stream_id, bool fin) = 0; // Called when a chunk of header data is available. This is called - // after OnSynStream, OnSynReply or OnHeaders(). + // after OnSynStream, OnPushPromise, OnSynReply, or OnHeaders(). // |stream_id| The stream receiving the header data. // |header_data| A buffer containing the header data chunk received. // |len| The length of the header data buffer. A length of zero indicates @@ -221,6 +222,12 @@ class NET_EXPORT_PRIVATE SpdyFramerVisitorInterface { // Called when a BLOCKED frame has been parsed. virtual void OnBlocked(SpdyStreamId stream_id) {} + + // Called when a PUSH_PROMISE frame is received. + // Note that header block data is not included. See + // OnControlFrameHeaderData(). + virtual void OnPushPromise(SpdyStreamId stream_id, + SpdyStreamId promised_stream_id) = 0; }; // Optionally, and in addition to SpdyFramerVisitorInterface, a class supporting @@ -428,6 +435,16 @@ class NET_EXPORT_PRIVATE SpdyFramer { // advisory and optional. SpdySerializedFrame* SerializeBlocked(const SpdyBlockedIR& blocked) const; + // Creates and serializes a PUSH_PROMISE frame. The PUSH_PROMISE frame is used + // to inform the client that it will be receiving an additional stream + // in response to the original request. The frame includes synthesized + // headers to explain the upcoming data. + SpdyFrame* CreatePushPromise(SpdyStreamId stream_id, + SpdyStreamId promised_stream_id, + const SpdyHeaderBlock* headers); + SpdySerializedFrame* SerializePushPromise( + const SpdyPushPromiseIR& push_promise); + // Given a CREDENTIAL frame's payload, extract the credential. // Returns true on successful parse, false otherwise. // TODO(hkhalil): Implement CREDENTIAL frame parsing in SpdyFramer @@ -491,6 +508,7 @@ class NET_EXPORT_PRIVATE SpdyFramer { size_t GetWindowUpdateSize() const; size_t GetCredentialMinimumSize() const; size_t GetBlockedSize() const; + size_t GetPushPromiseMinimumSize() const; // Returns the minimum size a frame can be (data or control). size_t GetFrameMinimumSize() const; |