Is it possible that the last line shows any number other than 1337or 0due to a race condition?
static mut FOO: i32 = 1337;
// en hilo 1
unsafe { FOO = 0; }
// en hilo 2
unsafe { println!("{}", FOO); }
I imagine it FOOcould be read while writing, when only a few bits have been updated, if the operations are performed in different threads.
I am using crate winsafeand I want to know when a menu has been clicked.
flags & MF_MOUSESELECT as u16It should be 1when yes and 0when no, but it always is 32768.
Why?
self.wnd.on().wm(winsafe::co::WM::MENUSELECT, {
move |params| {
let wparam = params.wparam;
let lparam = params.lparam;
let flags = (wparam >> 16 & 0xffff) as u16;
let MF_MOUSESELECT = 0x00008000 as u32;
println!("{}", flags & MF_MOUSESELECT as u16);
// siempre 32768
0
}
});