Macro mioco::select

macro_rules! select {
    (@wrap1 ) => { ... };
    (@wrap1 r:$rx:expr => $code:expr, $($tail:tt)*) => { ... };
    (@wrap1 r:$rx:expr => $code:expr) => { ... };
    (@wrap1 w:$rx:expr => $code:expr, $($tail:tt)*) => { ... };
    (@wrap1 w:$rx:expr => $code:expr) => { ... };
    (@wrap1 rw:$rx:expr => $code:expr, $($tail:tt)*) => { ... };
    (@wrap1 rw:$rx:expr => $code:expr) => { ... };
    (@wrap2 $ret:ident) => { ... };
    (@wrap2 $ret:ident r:$rx:expr => $code:expr, $($tail:tt)*) => { ... };
    (@wrap2 $ret:ident r:$rx:expr => $code:expr) => { ... };
    (@wrap2 $ret:ident w:$rx:expr => $code:expr, $($tail:tt)*) => { ... };
    (@wrap2 $ret:ident w:$rx:expr => $code:expr) => { ... };
    (@wrap2 $ret:ident rw:$rx:expr => $code:expr, $($tail:tt)*) => { ... };
    (@wrap2 $ret:ident rw:$rx:expr => $code:expr) => { ... };
    ($($tail:tt)*) => { ... };
}

Select operation on multiple IO.

Warning: Mioco can't guarantee that the returned EventSource will not block when actually attempting to read or write. You must use try_read and try_write instead to handle spurious wakeups.