Function second

user/src/bin/test_condvar.rs:31–41

()

}

unsafe fn second() -> ! {
    println!("Second want to continue,but need to wait A=1");
    mutex_lock(MUTEX_ID);
    while A == 0 {
        println!("Second: A is {}", A);
        condvar_wait(CONDVAR_ID, MUTEX_ID);
    }
    mutex_unlock(MUTEX_ID);
    println!("A is {}, Second can work now", A);
    exit(0)
}

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