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lnwallet: set initiator and channel type during reservation creation

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This commit is contained in:
Olaoluwa Osuntokun 2016-11-16 12:51:18 -08:00
parent 74122a0901
commit 3010412bbc
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GPG Key ID: 9CC5B105D03521A2
1 changed files with 38 additions and 6 deletions
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44
lnwallet/reservation.go
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@ -139,8 +139,11 @@ type ChannelReservation struct {
// lnwallet.InitChannelReservation interface.
func NewChannelReservation(capacity, fundingAmt btcutil.Amount, minFeeRate btcutil.Amount,
wallet *LightningWallet, id uint64, numConfs uint16) *ChannelReservation {
var ourBalance btcutil.Amount
var theirBalance btcutil.Amount
var (
ourBalance btcutil.Amount
theirBalance btcutil.Amount
)
// If we're the responder to a single-funder reservation, then we have
// no initial balance in the channel.
@ -151,19 +154,46 @@ func NewChannelReservation(capacity, fundingAmt btcutil.Amount, minFeeRate btcut
// TODO(roasbeef): need to rework fee structure in general and
// also when we "unlock" dual funder within the daemon
// If we're initiating a single funder workflow, then we pay
// all the initial fees within the commitment transaction.
if capacity == fundingAmt+commitFee {
// If we're initiating a single funder workflow, then
// we pay all the initial fees within the commitment
// transaction.
ourBalance = capacity - commitFee
// Otherwise, this is a dual funder workflow where both slides
// split the amount funded and the commitment fee.
} else {
// Otherwise, this is a dual funder workflow where both
// slides split the amount funded and the commitment
// fee.
ourBalance = fundingAmt - commitFee
}
theirBalance = capacity - fundingAmt - commitFee
}
var (
initiator bool
chanType channeldb.ChannelType
)
switch {
// If our balance is zero, then we're the responder to a single funder
// channel workflow.
case ourBalance == 0:
initiator = false
chanType = channeldb.SingleFunder
// Or, if their balance is zero, then we're the initiator to a single
// funder channel workflow.
case theirBalance == 0:
initiator = true
chanType = channeldb.SingleFunder
// Otherwise, if both sides are starting out with a non-zero balance,
// then neither of us is technically the "initiator" and this is a dual
// funder channel.
default:
initiator = false
chanType = channeldb.DualFunder
}
return &ChannelReservation{
ourContribution: &ChannelContribution{
FundingAmount: ourBalance,
@ -173,6 +203,8 @@ func NewChannelReservation(capacity, fundingAmt btcutil.Amount, minFeeRate btcut
},
partialState: &channeldb.OpenChannel{
Capacity: capacity,
IsInitiator: initiator,
ChanType: chanType,
OurBalance: ourBalance,
TheirBalance: theirBalance,
MinFeePerKb: minFeeRate,