pub fn wait_for_event(events: &[&GpioEventHandle], timeout_ms: i32) -> io::Result<(u64)> {
    let mut fds: std::vec::Vec<libc::pollfd> = Vec::with_capacity(events.len());
    let mut result: u64 = 0;

    if events.len() > 64 {
        return Err(io::Error::new(io::ErrorKind::InvalidData, "Function does not support more than 64 events"))
    }

    for event in events {
        fds.push( libc::pollfd { fd: event.file.as_raw_fd(), events: libc::POLLIN | libc::POLLPRI, revents: 0 } );
    }

    let ret = unsafe { libc::poll(&mut fds[0], fds.len() as libc::nfds_t, timeout_ms) };
    if ret < 0 {
        return Err(io::Error::last_os_error())
    } else if ret == 0 {
        return Ok(0);
    }

    for i in 0..fds.len() {
        if fds[i].revents != 0 {
            result |= 1 << i;
        }
    }

    Ok(result)
}
/// Wait until at least one gpio event has been received or timeout occured.
///
/// The return value is a bitmap, which marks the GpioEventHandles with data available
Wait until at least one gpio event has been received or timeout occured.
The return value is a bitmap, which marks the GpioEventHandles with data available
Wait until at least one gpio event has been received or timeout occured . The return value is a bitmap which marks the GpioEventHandles with data available
pub fn wait_for_event(events: &[&GpioEventHandle], timeout_ms: i32) -> io::Result<(u64)> {
    let mut fds: std::vec::Vec<libc::pollfd> = Vec::with_capacity(events.len());
    let mut result: u64 = 0;
    if events.len() > 64 {
        return Err(io::Error::new(io::ErrorKind::InvalidData, "Function does not support more than 64 events"))
    }
    for event in events {
        fds.push( libc::pollfd { fd: event.file.as_raw_fd(), events: libc::POLLIN | libc::POLLPRI, revents: 0 } );
    }
    let ret = unsafe { libc::poll(&mut fds[0], fds.len() as libc::nfds_t, timeout_ms) };
    if ret < 0 {
        return Err(io::Error::last_os_error())
    } else if ret == 0 {
        return Ok(0);
    }
    for i in 0..fds.len() {
        if fds[i].revents != 0 {
            result |= 1 << i;
        }
    }
    Ok(result)
}
pub fn wait_for_event ( events : & [ & GpioEventHandle ] , timeout_ms : i32 ) -> io :: Result < ( u64 ) > { let mut fds : std :: vec :: Vec < libc :: pollfd > = Vec :: with_capacity ( events . len ( ) ) ; let mut result : u64 = 0 ; if events . len ( ) > 64 { return Err ( io :: Error :: new ( io :: ErrorKind :: InvalidData , " " ) ) } for event in events { fds . push ( libc :: pollfd { fd : event . file . as_raw_fd ( ) , events : libc :: POLLIN | libc :: POLLPRI , revents : 0 } ) ; } let ret = unsafe { libc :: poll ( & mut fds [ 0 ] , fds . len ( ) as libc :: nfds_t , timeout_ms ) } ; if ret < 0 { return Err ( io :: Error :: last_os_error ( ) ) } else if ret == 0 { return Ok ( 0 ) ; } for i in 0 .. fds . len ( ) { if fds [ i ] . revents != 0 { result |= 1 << i ; } } Ok ( result ) }
Wait until at least one gpio event has been received or timeout occured.
Wait until at least one gpio event has been received or timeout occured .
events
&[&GpioEventHandle]
timeout_ms
i32
events
&[&GpioEventHandle]
timeout_ms
i32