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add some p2p TODOs

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Ethan Buchman 2018-01-26 13:41:29 -05:00 committed by Anton Kaliaev
parent 9e767771fc
commit 7640e6a29f
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1 changed files with 12 additions and 4 deletions
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16
p2p/conn/connection.go
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@ -406,6 +406,7 @@ func (c *MConnection) sendMsgPacket() bool {
// recvRoutine reads msgPackets and reconstructs the message using the channels' "recving" buffer.
// After a whole message has been assembled, it's pushed to onReceive().
// Blocks depending on how the connection is throttled.
// Otherwise, it never blocks.
func (c *MConnection) recvRoutine() {
defer c._recover()
@ -449,8 +450,8 @@ FOR_LOOP:
c.Logger.Debug("Receive Ping")
select {
case c.pong <- struct{}{}:
case <-c.quit:
break FOR_LOOP
default:
// never block
}
case packetTypePong:
// do nothing
@ -494,8 +495,9 @@ FOR_LOOP:
break FOR_LOOP
}
// TODO: shouldn't this go in the sendRoutine?
// Better to send a ping packet when *we* haven't sent anything for a while.
// TODO: don't bother with this "only ping when we havent heard from them".
// lets just always ping every peer from the sendRoutine every 10s no matter what.
// if they dont pong within pongTimeout, disconnect :)
c.pingTimer.Reset()
}
@ -691,7 +693,13 @@ func (ch *Channel) recvMsgPacket(packet msgPacket) ([]byte, error) {
}
ch.recving = append(ch.recving, packet.Bytes...)
if packet.EOF == byte(0x01) {
// TODO: document that these returned msgBytes will change under you after Receive finishes.
// TODO: document it in the Reactor interface especially - implementations of a Reactor
// can not keep these bytes around after the Receive completes without copying!
// In general that's fine, because the first thing we do is unmarshal into a msg type and then
// we never use the bytes again
msgBytes := ch.recving
// clear the slice without re-allocating.
// http://stackoverflow.com/questions/16971741/how-do-you-clear-a-slice-in-go
// suggests this could be a memory leak, but we might as well keep the memory for the channel until it closes,