Module timers
Init init_function
Function INT add(INT,INT)
Function INT subtract(INT,INT)
Function VOID unit(PRIV_VCL,STRING)
Function REAL req_start(PRIV_VCL)
Function TIME req_start_as_string(PRIV_VCL)
Function REAL req_end(PRIV_VCL)
Function TIME req_end_as_string(PRIV_VCL)
Function INT req_handle_time(PRIV_VCL)
Function INT req_response_time(PRIV_VCL)
Function INT req_delivery_time(PRIV_VCL)