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Merge pull request #3139 from Roasbeef/zero-fees

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rpc: update updatechanpolicy to allow zero fees
This commit is contained in:
Olaoluwa Osuntokun
2019-06-17 18:16:38 -07:00
committed by GitHub
parent df40a9c1e1 281f6daccb
commit df53c32489
1 changed files with 8 additions and 6 deletions
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14
rpcserver.go
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@@ -4493,15 +4493,17 @@ func (r *rpcServer) UpdateChannelPolicy(ctx context.Context,
return nil, fmt.Errorf("unknown scope: %v", scope) return nil, fmt.Errorf("unknown scope: %v", scope)
} }
// As a sanity check, we'll ensure that the passed fee rate is below switch {
// 1e-6, or the lowest allowed fee rate, and that the passed timelock // As a sanity check, if the fee isn't zero, we'll ensure that the
// is large enough. // passed fee rate is below 1e-6, or the lowest allowed non-zero fee
if req.FeeRate < minFeeRate { // rate expressible within the protocol.
case req.FeeRate != 0 && req.FeeRate < minFeeRate:
return nil, fmt.Errorf("fee rate of %v is too small, min fee "+ return nil, fmt.Errorf("fee rate of %v is too small, min fee "+
"rate is %v", req.FeeRate, minFeeRate) "rate is %v", req.FeeRate, minFeeRate)
}
if req.TimeLockDelta < minTimeLockDelta { // We'll also ensure that the user isn't setting a CLTV delta that
// won't give outgoing HTLCs enough time to fully resolve if needed.
case req.TimeLockDelta < minTimeLockDelta:
return nil, fmt.Errorf("time lock delta of %v is too small, "+ return nil, fmt.Errorf("time lock delta of %v is too small, "+
"minimum supported is %v", req.TimeLockDelta, "minimum supported is %v", req.TimeLockDelta,
minTimeLockDelta) minTimeLockDelta)