quiescent_region/
quiescent_region.rs

1//! Shows the only phase where ordinary byte slices are exposed by native regions.
2
3#[cfg(target_os = "linux")]
4fn main() -> Result<(), Box<dyn std::error::Error>> {
5    let mut region = native_ipc_platform::linux::QuiescentRegion::new(256)?;
6    initialize(&mut region.as_bytes_mut()[..256]);
7    println!(
8        "Linux memfd capability: {} page-rounded bytes",
9        region.len()
10    );
11    Ok(())
12}
13
14#[cfg(target_os = "macos")]
15fn main() -> Result<(), Box<dyn std::error::Error>> {
16    let mut region = native_ipc_platform::macos::QuiescentRegion::new(256)?;
17    initialize(&mut region.as_bytes_mut()[..256]);
18    println!("Mach VM capability: {} page-rounded bytes", region.len());
19    Ok(())
20}
21
22#[cfg(target_os = "windows")]
23fn main() -> Result<(), Box<dyn std::error::Error>> {
24    let mut region = native_ipc_platform::windows::QuiescentRegion::new(256)?;
25    initialize(&mut region.as_bytes_mut()[..256]);
26    println!(
27        "Windows section capability: {} page-rounded bytes",
28        region.len()
29    );
30    Ok(())
31}
32
33#[cfg(not(any(target_os = "linux", target_os = "macos", target_os = "windows")))]
34fn main() {
35    compile_error!("quiescent_region requires Linux, macOS, or Windows");
36}
37
38fn initialize(bytes: &mut [u8]) {
39    assert!(bytes.iter().all(|byte| *byte == 0));
40    bytes[..8].copy_from_slice(b"NIPCDEMO");
41    // The consuming prepare/transfer transition removes this slice accessor
42    // before another process can map the same capability.
43}
quiescent_region/quiescent_region.rs

quiescent_region/
quiescent_region.rs
