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channeldb: move helper function to codec.go

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This method is not only used by the payment logic so we need to
move it to a generalized place because in the following commits
we move payment related code into its own package.
This commit is contained in:
ziggie
2025-08-13 09:14:51 +02:00
parent 4bb21a7284
commit 77a6b577eb
2 changed files with 34 additions and 33 deletions
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34
channeldb/codec.go
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@@ -6,6 +6,7 @@ import (
"fmt"
"io"
"net"
"time"
"github.com/btcsuite/btcd/btcec/v2"
"github.com/btcsuite/btcd/btcutil"
@@ -466,3 +467,36 @@ func ReadElements(r io.Reader, elements ...interface{}) error {
}
return nil
}
// deserializeTime deserializes time as unix nanoseconds.
func deserializeTime(r io.Reader) (time.Time, error) {
var scratch [8]byte
if _, err := io.ReadFull(r, scratch[:]); err != nil {
return time.Time{}, err
}
// Convert to time.Time. Interpret unix nano time zero as a zero
// time.Time value.
unixNano := byteOrder.Uint64(scratch[:])
if unixNano == 0 {
return time.Time{}, nil
}
return time.Unix(0, int64(unixNano)), nil
}
// serializeTime serializes time as unix nanoseconds.
func serializeTime(w io.Writer, t time.Time) error {
var scratch [8]byte
// Convert to unix nano seconds, but only if time is non-zero. Calling
// UnixNano() on a zero time yields an undefined result.
var unixNano int64
if !t.IsZero() {
unixNano = t.UnixNano()
}
byteOrder.PutUint64(scratch[:], uint64(unixNano))
_, err := w.Write(scratch[:])
return err
}

33
channeldb/mp_payment.go
View File

@@ -654,39 +654,6 @@ func deserializeHTLCFailInfo(r io.Reader) (*HTLCFailInfo, error) {
return f, nil
}
// deserializeTime deserializes time as unix nanoseconds.
func deserializeTime(r io.Reader) (time.Time, error) {
var scratch [8]byte
if _, err := io.ReadFull(r, scratch[:]); err != nil {
return time.Time{}, err
}
// Convert to time.Time. Interpret unix nano time zero as a zero
// time.Time value.
unixNano := byteOrder.Uint64(scratch[:])
if unixNano == 0 {
return time.Time{}, nil
}
return time.Unix(0, int64(unixNano)), nil
}
// serializeTime serializes time as unix nanoseconds.
func serializeTime(w io.Writer, t time.Time) error {
var scratch [8]byte
// Convert to unix nano seconds, but only if time is non-zero. Calling
// UnixNano() on a zero time yields an undefined result.
var unixNano int64
if !t.IsZero() {
unixNano = t.UnixNano()
}
byteOrder.PutUint64(scratch[:], uint64(unixNano))
_, err := w.Write(scratch[:])
return err
}
// generateSphinxPacket generates then encodes a sphinx packet which encodes
// the onion route specified by the passed layer 3 route. The blob returned
// from this function can immediately be included within an HTLC add packet to