Function nginx::ASYNC_WAIT_CTX_set_wait_fd

pub unsafe extern "C" fn ASYNC_WAIT_CTX_set_wait_fd(
    ctx: *mut ASYNC_WAIT_CTX, 
    key: *const c_void, 
    fd: c_int, 
    custom_data: *mut c_void, 
    cleanup: Option<unsafe extern "C" fn(arg1: *mut ASYNC_WAIT_CTX, arg2: *const c_void, arg3: c_int, arg4: *mut c_void)>
) -> c_int