/* wait for incoming messages from the UI */
func PyBridgeReceiver() {
for {
message := bridges.ReceiveFromPyBridge()
switch message.Kind {
case defs.MSG_MYNAME:
localNameChannel <- message.Content
case defs.MSG_GAME_TYPE:
gameTypeChannel <- message.Content
case defs.MSG_CON_REQ:
valueType := strings.Split(message.Content, "|")[0]
consensus.Propose(message.Content, valueType)
case defs.MSG_CON_REPLY:
valueType := strings.Split(message.Content, "|")[0]
propCheckMutex.Lock()
propCheck := propChecksMap[valueType]
(*propCheck.Callback)(message.Content)
delete(propChecksMap, valueType)
propCheckMutex.Unlock()
case defs.MSG_EXIT:
// echo back to UI
bridges.SendToPyBridge(message)
// exit multegula
exitChannel <- true
default:
go putMessageIntoSendChannel(message)
}
}
}
/*
* sets the orientation of the players to alphabetical
*/
func uiSetCompetitorLocation(myName string, peers *[]messagePasser.Node) {
var toSend messagePasser.Message
var nodeNames = []string{}
// loop through all nodes and pull out names
for _, node := range *peers {
nodeNames = append(nodeNames, node.Name)
}
// sort and get length
sort.Strings(nodeNames)
length := len(nodeNames)
// create content of message
content := fmt.Sprintf("%d", length)
for _, name := range nodeNames {
content = fmt.Sprintf("%v%v%v", content, defs.PAYLOAD_DELIMITER, name)
}
// create message and send message
toSend.Source = myName
toSend.Destination = myName
toSend.Kind = defs.MSG_PLAYER_LOC
toSend.Content = content
bridges.SendToPyBridge(toSend)
}
/*
* Routine to commit proposals that have reached consensus
*/
func ConsensusReachedRoutine() {
for {
proposal := consensus.ProposalToCommit()
commitMessage := messagePasser.Message{
Source: messagePasser.LocalNode.Name,
Destination: messagePasser.LocalNode.Name,
Kind: defs.MSG_CON_COMMIT,
Content: proposal.Value,
}
bridges.SendToPyBridge(commitMessage)
}
}
/*
* Routine to check proposals for a local value and respond
*/
func ConsensusCheckReceiverRoutine() {
for {
propCheck := consensus.ProposalCheck()
propCheckMutex.Lock()
propChecksMap[propCheck.Prop.Type] = propCheck
propCheckMutex.Unlock()
bridges.SendToPyBridge(messagePasser.Message{
Source: messagePasser.LocalNode.Name,
Destination: messagePasser.LocalNode.Name,
Kind: defs.MSG_CON_CHECK,
Content: propCheck.Prop.Value,
})
}
}
/* receive message from messagePasser and route to correct location */
func inboundDispatcher() {
for {
// get message from MessagePasser
message := messagePasser.Receive()
// Based on the type of message, determine where it needs routed
switch message.Kind {
// UI Messages
case defs.MSG_BALL_DEFLECTED:
fallthrough
case defs.MSG_BALL_MISSED:
fallthrough
case defs.MSG_BLOCK_BROKEN:
fallthrough
case defs.MSG_CON_CHECK:
fallthrough
case defs.MSG_CON_COMMIT:
fallthrough
case defs.MSG_DEAD_NODE:
fallthrough
case defs.MSG_DEAD_UNICORN:
fallthrough
case defs.MSG_FORCE_COMMIT:
fallthrough
case defs.MSG_KILL_NODE:
fallthrough
case defs.MSG_PADDLE_DIR:
fallthrough
case defs.MSG_PAUSE_UPDATE:
fallthrough
case defs.MSG_REJOIN_ACK:
fallthrough
case defs.MSG_REJOIN_REQ:
fallthrough
case defs.MSG_START_PLAY:
fallthrough
case defs.MSG_SYNC_ERROR:
bridges.SendToPyBridge(message)
case defs.MSG_UNICORN:
initConsensus(message)
bridges.SendToPyBridge(message)
// election messages
case defs.MSG_BULLY_ELECTION:
fallthrough
case defs.MSG_BULLY_ANSWER:
fallthrough
case defs.MSG_BULLY_ARE_YOU_ALIVE:
fallthrough
case defs.MSG_BULLY_IAM_ALIVE:
bullySelection.PutMessageToReceiveChannel(message)
case defs.MSG_BULLY_UNICORN:
initConsensus(message)
bullySelection.PutMessageToReceiveChannel(message)
// consensus messages
case defs.CONSENSUS_ACCEPT_KIND:
fallthrough
case defs.CONSENSUS_REJECT_KIND:
fallthrough
case defs.CONSENSUS_PROPOSE_KIND:
fallthrough
case defs.CONSENSUS_COMMIT_KIND:
consensus.ReceiveMessage(message)
default:
fmt.Printf("inboundDispatcher couldn't recognize message: %+v\n", message)
}
}
}