34 lines
617 B
Rust
34 lines
617 B
Rust
#![no_std]
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#![no_main]
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#[macro_use]
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extern crate user_lib;
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use user_lib::{
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fork,
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wait,
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exec,
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yield_,
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};
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#[no_mangle]
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fn main() -> i32 {
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if fork() == 0 {
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exec("user_shell\0", &[0 as *const u8]);
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} else {
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loop {
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let mut exit_code: i32 = 0;
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let pid = wait(&mut exit_code);
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if pid == -1 {
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yield_();
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continue;
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}
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println!(
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"[initproc] Released a zombie process, pid={}, exit_code={}",
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pid,
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exit_code,
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);
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}
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}
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0
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}
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