Initial commit (code only without large binaries)

EdgeNode/internal/utils/kvstore/errors.go

@@ -0,0 +1,30 @@
+// Copyright 2024 GoEdge CDN goedge.cdn@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package kvstore
+
+import (
+	"errors"
+	"fmt"
+	"github.com/cockroachdb/pebble"
+)
+
+var ErrTableNotFound = errors.New("table not found")
+var ErrKeyTooLong = errors.New("too long key")
+var ErrSkip = errors.New("skip") // skip count in iterator
+var ErrTableClosed = errors.New("table closed")
+
+func IsNotFound(err error) bool {
+	return err != nil && errors.Is(err, pebble.ErrNotFound)
+}
+
+func IsSkipError(err error) bool {
+	return err != nil && errors.Is(err, ErrSkip)
+}
+
+func Skip() (bool, error) {
+	return true, ErrSkip
+}
+
+func NewTableClosedErr(tableName string) error {
+	return fmt.Errorf("table '"+tableName+"' closed: %w", ErrTableClosed)
+}