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htlcswitch: utilize memoryMailBox within link, no longer spawn goroutine to forward in switch

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In this commit, we’ve modified the link and the switch to start to use
the new mailBox in place of the existing synchronous message send
directly into the link’s upstream/downstream channels. With his change,
we no longer need to spawn a new goroutine each time an HTLC needs to
be forwarded, or a user payment is initiated.
This commit is contained in:
Olaoluwa Osuntokun
2017-11-10 14:48:23 -08:00
parent 890559edfa
commit 70ed50738a
3 changed files with 30 additions and 24 deletions
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8
htlcswitch/interfaces.go
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@@ -38,14 +38,22 @@ type InvoiceDatabase interface {
// |
//
type ChannelLink interface {
// TODO(roasbeef): modify interface to embed mail boxes?
// HandleSwitchPacket handles the switch packets. This packets might be
// forwarded to us from another channel link in case the htlc update
// came from another peer or if the update was created by user
// initially.
//
// NOTE: This function MUST be non-blocking (or block as little as
// possible).
HandleSwitchPacket(*htlcPacket)
// HandleChannelUpdate handles the htlc requests as settle/add/fail
// which sent to us from remote peer we have a channel with.
//
// NOTE: This function MUST be non-blocking (or block as little as
// possible).
HandleChannelUpdate(lnwire.Message)
// ChanID returns the channel ID for the channel link. The channel ID