fix: fix diskcache empty pos

GuanceCloud · Nov 17, 2023 · f890423 · f890423
1 parent 2309188
commit f890423
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Showing 2 changed files with 8 additions and 0 deletions.
diff --git a/diskcache/pos.go b/diskcache/pos.go
@@ -32,6 +32,10 @@ func posFromFile(fname string) (*pos, error) {
 		return nil, err
 	}
 
+	if len(bin) <= 8 {
+		return nil, nil
+	}
+
 	var p pos
 	if err := p.UnmarshalBinary(bin); err != nil {
 		return nil, err

diff --git a/diskcache/switch.go b/diskcache/switch.go
@@ -23,6 +23,10 @@ func (c *DiskCache) loadUnfinishedFile() error {
 		return fmt.Errorf("posFromFile: %w", err)
 	}
 
+	if pos == nil {
+		return nil
+	}
+
 	// check file's healty
 	if _, err := os.Stat(string(pos.Name)); err != nil { // not exist
 		if err := c.pos.reset(); err != nil {