pub type WaitCloseFn = unsafe extern "system" fn(HANDLE) -> BOOL;Expand description
A Win32 routine that closes a wait target.
This is the shape Win32 close routines already have, so one can be passed
directly with no shim: CloseHandle and FindCloseChangeNotification both
match it. The return value is ignored – there is nothing a destructor could
usefully do with a close failure.