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149a8ce94f
This commit adds a new file legacy_serialization.go, where a copy of the current deserializeCloseChannelSummary is made, called deserializeCloseChannelSummaryV6. The rationale is to keep old deserialization code around to be used during migration, as it is hard maintaining compatibility with the old format while changing the code in use.
54 lines
1.6 KiB
Go
54 lines
1.6 KiB
Go
package channeldb
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import "io"
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// deserializeCloseChannelSummaryV6 reads the v6 database format for
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// ChannelCloseSummary.
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//
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// NOTE: deprecated, only for migration.
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func deserializeCloseChannelSummaryV6(r io.Reader) (*ChannelCloseSummary, error) {
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c := &ChannelCloseSummary{}
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err := ReadElements(r,
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&c.ChanPoint, &c.ShortChanID, &c.ChainHash, &c.ClosingTXID,
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&c.CloseHeight, &c.RemotePub, &c.Capacity, &c.SettledBalance,
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&c.TimeLockedBalance, &c.CloseType, &c.IsPending,
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)
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if err != nil {
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return nil, err
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}
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// We'll now check to see if the channel close summary was encoded with
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// any of the additional optional fields.
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err = ReadElements(r, &c.RemoteCurrentRevocation)
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switch {
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case err == io.EOF:
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return c, nil
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// If we got a non-eof error, then we know there's an actually issue.
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// Otherwise, it may have been the case that this summary didn't have
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// the set of optional fields.
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case err != nil:
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return nil, err
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}
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if err := readChanConfig(r, &c.LocalChanConfig); err != nil {
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return nil, err
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}
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// Finally, we'll attempt to read the next unrevoked commitment point
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// for the remote party. If we closed the channel before receiving a
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// funding locked message, then this can be nil. As a result, we'll use
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// the same technique to read the field, only if there's still data
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// left in the buffer.
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err = ReadElements(r, &c.RemoteNextRevocation)
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if err != nil && err != io.EOF {
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// If we got a non-eof error, then we know there's an actually
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// issue. Otherwise, it may have been the case that this
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// summary didn't have the set of optional fields.
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return nil, err
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}
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return c, nil
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}
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