Function wrapResultCallback

backend/handler.go:45–54

(callback mysql.ResultSpoolFn, modifiers ...ResultModifier)

func (h *MyHandler) ConnectionClosed(c *mysql.Conn) {
	var expectedConn *stdsql.Conn
	var expectedTx *stdsql.Tx
	if h != nil && h.provider != nil && h.provider.Pool() != nil && c != nil {
		expectedConn, expectedTx = h.provider.Pool().GetTxnBindingForRelease(c.ConnectionID)
	}
	// Let GMS remove the session first. Its LifecycleAwareSession callback
	// (SessionEnd) must still see the generic pool connection while it rolls back
	// a logical autocommit transaction and performs any same-connection cleanup;
	// closing the pool entry first could make that cleanup acquire and strand a
	// replacement connection. The final pool close then retires the exact entry.
	if h != nil && h.Handler != nil {
		h.Handler.ConnectionClosed(c)
	}