Remove Netty entirely, using the new Nio wrapper classes instead
* BitcoinSerializer now uses ByteBuffers directly instead of
InputStreams.
* TCPNetworkConnection and NetworkConnection interface deleted,
Peer now extends the abstract class PeerSocketHandler which
handles deserialization and interfaces with the Nio wrapper
classes.
* As a part of this, all version message handling has been moved
to Peer, instead of doing it in TCPNetworkConnection.
* Peer.setMinProtocolVersion() now returns a boolean instead of a
null/non-null future which holds the now-closing channel.
* Peer.sendMessage (now PeerSocketHandler.sendMessage()) now
returns void.
* PeerGroup has some significant API changes:
* removed constructors which take pipeline factories,
makePipelineFactory, createClientBootstrap
* Replaced with a setSocketTimeoutMillis method that sets a
timeout between openConnection() and version/verack exchange.
(Note that because Peer extends AbstractTimeoutHandler, it has
useful timeout setters public already).
* connectTo returns a Peer future, not a ChannelFuture
* removed peerFromChannelFuture and peerFromChannel
* Peer and PeerGroup Tests have semi-significant rewrites:
* They use actual TCP connections to localhost
* The "remote" side is a InboundMessageQueuer, which queues
inbound messages and allows for writing arbitrary messages.
* It ignores certain special pings which come from pingAndWait,
which is used to wait for message processing in the Peer.
* Removed a broken test in PeerGroupTest that should be reenabled
if we ever prefer a different version than our minimum version
again.
* Removed two duplicate tests in PeerTest (testRun_*Exception)
which are tested for in badMessage as well.
* Added a test for peer timeout and large message deserialization
Author: Matt Corallo <git@bluematt.me>
Unlock Peer almost completely and make it fully thread safe with minimal use of locking.
Introduce a new convention that volatile variables have a v prefix.
