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Fix rbf.Cursor.Close() panic

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This commit is contained in:
Ben Johnson 2021-01-07 11:28:46 -07:00
parent 17e010cca2
commit 93f06e0f9d
1 changed files with 3 additions and 0 deletions
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3
rbf/cursor.go
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@ -1388,7 +1388,10 @@ func (c *Cursor) difference(key uint64, data *roaring.Container) (bool, error) {
func (c *Cursor) Close() {
if c == nil {
panic("cannot Close nil Cursor")
} else if c.tx == nil || c.tx.db == nil {
return // already closed
}
tx := c.tx
c.tx = nil // allow tx to be garbage collected.