NAME
Protocol::SPDY::Base - abstract support for the SPDY protocol
VERSION
version 0.999_002
DESCRIPTION
Provides the base class for client, server and generic (proxy/analysis) SPDY handling.
METHODS
new
Instantiates a new SPDY-handling object. Applies any attributes passed as named parameters.
sender_zlib
The compression instance used for sending data.
receiver_zlib
Compression instance used for receiving (decompressing) data.
request_close
Issue a close request by sending a GOAWAY message.
check_version
Called before we do anything with a control frame.
Returns true if it's supported, false if not.
next_stream_id
Generate the next stream ID for this connection.
Returns the next available stream ID, or 0 if we're out of available streams
queue_frame
Requests sending the given $frame at the earliest opportunity.
on_read
This is the method that an external transport would call when it has some data received from the other side of the SPDY connection. It expects to be called with a scalar containing bytes which can be decoded as SPDY frames; any SSL/TLS decoding should happen before passing data to this method.
Will call "dispatch_frame" for any valid frames that can be extracted from the stream.
prioritise_incoming_frames
Given a list of Protocol::SPDY::Frame instances, returns them reordered so that higher-priority items such as PING are handled first.
Does not yet support stream priority.
dispatch_frame
Dispatches the given frame to appropriate handlers - this will be the matching Protocol::SPDY::Stream if one exists, or internal connection state handling for GOAWAY/SETTINGS frames.
incoming_stream
Called when a new SYN_STREAM frame is received.
related_stream
Returns the Protocol::SPDY::Stream matching the stream_id for this frame (if it has one).
Will return undef if we have no stream yet or this frame does not have a stream_id.
apply_settings
Applies the given settings to our internal state.
Note : Not yet implemented
extract_frame
Given a scalar reference to a byte buffer, this will extract the first frame if possible and return the bytes if it succeeded, undef if not. No frame validation is performed: the bytes are extracted based on the length information only.
parse_frame
Parse a frame extracted by "extract_frame". Returns an appropriate subclass of Protocol::SPDY::Frame if this succeeded, dies if it fails.
goaway
Requests termination of the connection.
ping
Sends a ping request. We should get a PING packet back as a high-priority reply.
settings
Send settings to the remote.
credential
Sends credential information to the remote.
version
Returns the version supported by this instance. Currently, this is always 3.
last_stream_id
The ID for the last stream we created.
write
Calls the external code which is expected to handle writes.
create_stream
Instantiate a new stream, returning the Protocol::SPDY::Stream instance.
pending_send
Returns a count of the frames that are waiting to be sent.
has_stream
Returns true if we have a stream matching the ID on the provided Protocol::SPDY::Stream instance.
stream_by_id
Returns the Protocol::SPDY::Stream matching the given ID.
INHERITED METHODS
- Mixin::Event::Dispatch
-
add_handler_for_event, clear_event_handlers, event_handlers, invoke_event, subscribe_to_event, unsubscribe_from_event
AUTHOR
Tom Molesworth <cpan@entitymodel.com>
LICENSE
Copyright Tom Molesworth 2011-2013. Licensed under the same terms as Perl itself.