-
Notifications
You must be signed in to change notification settings - Fork 2.1k
/
msat.go
45 lines (36 loc) · 1.44 KB
/
msat.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
package lnwire
import (
"fmt"
"github.com/btcsuite/btcutil"
)
// mSatScale is a value that's used to scale satoshis to milli-satoshis, and
// the other way around.
const mSatScale uint64 = 1000
// MilliSatoshi are the native unit of the Lightning Network. A milli-satoshi
// is simply 1/1000th of a satoshi. There are 1000 milli-satoshis in a single
// satoshi. Within the network, all HTLC payments are denominated in
// milli-satoshis. As milli-satoshis aren't deliverable on the native
// blockchain, before settling to broadcasting, the values are rounded down to
// the nearest satoshi.
type MilliSatoshi uint64
// NewMSatFromSatoshis creates a new MilliSatoshi instance from a target amount
// of satoshis.
func NewMSatFromSatoshis(sat btcutil.Amount) MilliSatoshi {
return MilliSatoshi(uint64(sat) * mSatScale)
}
// ToBTC converts the target MilliSatoshi amount to its corresponding value
// when expressed in BTC.
func (m MilliSatoshi) ToBTC() float64 {
sat := m.ToSatoshis()
return sat.ToBTC()
}
// ToSatoshis converts the target MilliSatoshi amount to satoshis. Simply, this
// sheds a factor of 1000 from the mSAT amount in order to convert it to SAT.
func (m MilliSatoshi) ToSatoshis() btcutil.Amount {
return btcutil.Amount(uint64(m) / mSatScale)
}
// String returns the string representation of the mSAT amount.
func (m MilliSatoshi) String() string {
return fmt.Sprintf("%v mSAT", uint64(m))
}
// TODO(roasbeef): extend with arithmetic operations?