improve: optimal way to use memory

zikwall · Jun 10, 2022 · 2f1874b · 2f1874b
1 parent 42846ba
commit 2f1874b
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/buffer/memory/buffer.go b/src/buffer/memory/buffer.go
@@ -21,13 +21,15 @@ func (i *memory) Write(row buffer.RowSlice) {
 }
 
 func (i *memory) Read() []buffer.RowSlice {
-	return i.buffer
+	snapshot := make([]buffer.RowSlice, len(i.buffer))
+	copy(snapshot, i.buffer)
+	return snapshot
 }
 
 func (i *memory) Len() int {
 	return len(i.buffer)
 }
 
 func (i *memory) Flush() {
-	i.buffer = make([]buffer.RowSlice, 0, i.size)
+	i.buffer = i.buffer[:0]
 }