Expand description
APIs for managing the Windows Subsystem for Linux (wslapi.h)
use wslapi::*;
let wsl = Library::new().unwrap();
let nonexistant = "Nonexistant";
assert!(!wsl.is_distribution_registered(nonexistant));
assert!(wsl.get_distribution_configuration(nonexistant).is_err());
let mut found = 0;
for distro in registry::distribution_names() {
if !wsl.is_distribution_registered(&distro) { continue }
found += 1;
let c = wsl.get_distribution_configuration(&distro).unwrap();
assert!(c.default_uid == 0 || (1000 ..= 2000).contains(&c.default_uid));
// 0 == root, 1000+ == regular user
assert!(c.flags & WSL_DISTRIBUTION_FLAGS::DEFAULT == WSL_DISTRIBUTION_FLAGS::DEFAULT);
// `c.flags` contains extra, undocumented flags like 0x8
assert!((1..=2).contains(&c.version)); // WSL version
wsl.launch_interactive(&distro, "echo testing 123", true).unwrap();
let stdin = "echo testing 456\necho PATH: ${PATH}\n";
let stdout = std::fs::File::create("target/basic.txt").unwrap();
let stderr = (); // shorthand for Stdio::null()
wsl.launch(&distro, "sh", true, stdin, stdout, stderr).unwrap().wait().unwrap();
for exit in [0, 1, 2, 3, 0xFF, 0x100, 0x101, 0x1FF].iter().copied() {
let script = format!("exit {}", exit);
let wsl = wsl.launch(&distro, "sh", true, script, (), ()).unwrap();
let code = wsl.wait().unwrap().code().unwrap();
if code == !0 {
// May happen if WSL doesn't know the exit code? On my machine, this
// only happens for Ubuntu 20.04, but on appveyor this happens on Ubuntu-18.04
// or Ubuntu-16.04 as well.
} else if code == 1 && distro == "docker-desktop-data" {
// Not launchable?
} else if exit & 0xFF == 0 {
// 0x100 may be truncated to 0, or coerced to something else
assert!(
code == exit || code == 0,
"distro {}, exit {} != code {}",
distro.to_string_lossy(), exit, code
);
} else {
// 0x101 may be truncated to 1 per POSIX
assert!(
code == exit || code == exit & 0xFF,
"distro {}, exit {} != code {}",
distro.to_string_lossy(), exit, code
);
}
}
}
assert_ne!(0, found, "Found {} distros", found);
Modules§
- registry
- wslapi.h “adjacent” registry keys to fill in where wslapi.h is missing functionality
Structs§
- Configuration
- The structified result of WslGetDistributionConfiguration
- Environment
Variables - The environment variables of WslGetDistributionConfiguration.
- Environment
Variables Iter - Iterator over &EnvironmentVariables
- Error
- A crate error. Convertable to std::io::Error, Box<dyn std::error::Error>
- Exit
Status - The exit status of a WSL process.
- Library
- A loaded
wslapi.dll
orapi-ms-win-wsl-api-l1-1-0.dll
instance - Process
- A WslLaunched Process
- Stdio
- A WslLaunch stdin, stdout, or stderr parameter
- WSL_
DISTRIBUTION_ FLAGS - Flags specifying WSL behavior
Type Aliases§
- Result
- A crate Result.