1 unstable release
0.1.0 | Sep 24, 2023 |
---|
#1018 in Embedded development
8KB
145 lines
vfork-rs
vfork-rs
is used in embedded low memory to run an external program and read the stdout output.
Just like the name, the vfork-rs
uses the linux vfork
syscall. the vfork
syscall is used to create new processes without copying the page tables of the parent process.
Notice
Used in linux only.
Usage
use vfork::Command;
fn main() {
let s = "hello, world!";
let mut cmd = Command::new("/bin/echo")
.arg(s)
.spawn()
.expect("failed to execute process");
let status_code = cmd.wait().expect("failed to wait process");
assert_eq!(0, status_code.code());
let output = cmd.output().expect("failed to get output");
assert_eq!(String::from_utf8_lossy(&output), s);
}
Reference
Dependencies
~43KB