Function fork_tree

user/src/bin/forktree.rs:26–34

(cur: &str)

}

fn fork_tree(cur: &str) {
    println!("pid{}: {}", getpid(), cur);
    fork_child(cur, '0');
    fork_child(cur, '1');
    let mut exit_code: i32 = 0;
    for _ in 0..2 {
        wait(&mut exit_code);
    }
}

#[no_mangle]
pub fn main() -> i32 {