82 lines
2.3 KiB
Rust
82 lines
2.3 KiB
Rust
// run-fail
|
|
// only-windows
|
|
|
|
fn main() {
|
|
use std::fs;
|
|
use std::io::prelude::*;
|
|
use std::os::windows::prelude::*;
|
|
use std::ptr;
|
|
use std::sync::Arc;
|
|
use std::thread;
|
|
use std::time::Duration;
|
|
|
|
const FILE_FLAG_OVERLAPPED: u32 = 0x40000000;
|
|
|
|
fn create_pipe_server(path: &str) -> fs::File {
|
|
let mut path0 = path.as_bytes().to_owned();
|
|
path0.push(0);
|
|
extern "system" {
|
|
fn CreateNamedPipeA(
|
|
lpName: *const u8,
|
|
dwOpenMode: u32,
|
|
dwPipeMode: u32,
|
|
nMaxInstances: u32,
|
|
nOutBufferSize: u32,
|
|
nInBufferSize: u32,
|
|
nDefaultTimeOut: u32,
|
|
lpSecurityAttributes: *mut u8,
|
|
) -> RawHandle;
|
|
}
|
|
|
|
unsafe {
|
|
let h = CreateNamedPipeA(path0.as_ptr(), 3, 0, 1, 0, 0, 0, ptr::null_mut());
|
|
assert_ne!(h as isize, -1);
|
|
fs::File::from_raw_handle(h)
|
|
}
|
|
}
|
|
|
|
let path = "\\\\.\\pipe\\repro";
|
|
let mut server = create_pipe_server(path);
|
|
|
|
let client = Arc::new(
|
|
fs::OpenOptions::new().custom_flags(FILE_FLAG_OVERLAPPED).read(true).open(path).unwrap(),
|
|
);
|
|
|
|
let spawn_read = |is_first: bool| {
|
|
thread::spawn({
|
|
let f = client.clone();
|
|
move || {
|
|
let mut buf = [0xcc; 1];
|
|
let mut f = f.as_ref();
|
|
f.read(&mut buf).unwrap();
|
|
if is_first {
|
|
assert_ne!(buf[0], 0xcc);
|
|
} else {
|
|
let b = buf[0]; // capture buf[0]
|
|
thread::sleep(Duration::from_millis(200));
|
|
|
|
// Check the buffer hasn't been written to after read.
|
|
dbg!(buf[0], b);
|
|
assert_eq!(buf[0], b);
|
|
}
|
|
}
|
|
})
|
|
};
|
|
|
|
let t1 = spawn_read(true);
|
|
thread::sleep(Duration::from_millis(20));
|
|
let t2 = spawn_read(false);
|
|
thread::sleep(Duration::from_millis(100));
|
|
let _ = server.write(b"x");
|
|
thread::sleep(Duration::from_millis(100));
|
|
let _ = server.write(b"y");
|
|
|
|
// This is run fail because we need to test for the `abort`.
|
|
// That failing to run is the success case.
|
|
if t1.join().is_err() || t2.join().is_err() {
|
|
return;
|
|
} else {
|
|
panic!("success");
|
|
}
|
|
}
|