A safe API for Windows' job objects, which can be used to set various limits to processes associated with them.
[dependencies]
win32job = "2"Limit the amount of memory that will be available for this process (allocating more memory is still possible, but it will be paged):
use win32job::{Job, ExtendedLimitInfo};
fn main() -> Result<(), Box<dyn std::error::Error>> {
let mut info = ExtendedLimitInfo::new();
info.limit_working_memory(1 * 1024 * 1024, 4 * 1024 * 1024);
let job = Job::create_with_limit_info(&mut info)?;
job.assign_current_process()?;
Ok(())
}Force any created sub processes to exit when the main process exits:
use win32job::Job;
use std::process::Command;
fn main() -> Result<(), Box<dyn std::error::Error>> {
let job = Job::create()?;
let mut info = job.query_extended_limit_info()?;
info.limit_kill_on_job_close();
job.set_extended_limit_info(&mut info)?;
job.assign_current_process()?;
Command::new("cmd.exe")
.arg("/C")
.arg("ping -n 9999 127.0.0.1")
.spawn()?;
// The cmd will be killed once we exit, or `job` is dropped.
Ok(())
}The win32job crate is licensed under either of
Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.