7569cca19b
To avoid code changing underneath the static migrations, we copy the lnwire dependency in its current form into the migration directory. Ideally the migrations doesn't depend on any code that might change, this takes us a step closer.
52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
package lnwire
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import (
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"fmt"
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"github.com/btcsuite/btcutil"
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)
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const (
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// mSatScale is a value that's used to scale satoshis to milli-satoshis, and
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// the other way around.
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mSatScale uint64 = 1000
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// MaxMilliSatoshi is the maximum number of msats that can be expressed
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// in this data type.
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MaxMilliSatoshi = ^MilliSatoshi(0)
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)
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// MilliSatoshi are the native unit of the Lightning Network. A milli-satoshi
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// is simply 1/1000th of a satoshi. There are 1000 milli-satoshis in a single
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// satoshi. Within the network, all HTLC payments are denominated in
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// milli-satoshis. As milli-satoshis aren't deliverable on the native
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// blockchain, before settling to broadcasting, the values are rounded down to
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// the nearest satoshi.
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type MilliSatoshi uint64
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// NewMSatFromSatoshis creates a new MilliSatoshi instance from a target amount
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// of satoshis.
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func NewMSatFromSatoshis(sat btcutil.Amount) MilliSatoshi {
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return MilliSatoshi(uint64(sat) * mSatScale)
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}
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// ToBTC converts the target MilliSatoshi amount to its corresponding value
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// when expressed in BTC.
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func (m MilliSatoshi) ToBTC() float64 {
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sat := m.ToSatoshis()
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return sat.ToBTC()
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}
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// ToSatoshis converts the target MilliSatoshi amount to satoshis. Simply, this
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// sheds a factor of 1000 from the mSAT amount in order to convert it to SAT.
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func (m MilliSatoshi) ToSatoshis() btcutil.Amount {
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return btcutil.Amount(uint64(m) / mSatScale)
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}
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// String returns the string representation of the mSAT amount.
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func (m MilliSatoshi) String() string {
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return fmt.Sprintf("%v mSAT", uint64(m))
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}
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// TODO(roasbeef): extend with arithmetic operations?
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