Function dr_app_setup_and_start 

pub unsafe extern "C" fn dr_app_setup_and_start() -> c_int

Calls dr_app_setup() and, if it succeeds, calls dr_app_start(). Returns the result of dr_app_setup(), which returns zero on success. This routine is intended as a convenient single point of entry for callers who are using dlsym() or GetProcAddress() to access the app API.