badvpn/ncd/tests/depend.ncd

process main {
    var("hello") x;
    provide("A");
    depend("A") d;
    val_equal(d.x, "hello") a;
    assert(a);
    d.x->set("world");
    val_equal(d.x, "world") a;
    assert(a);

    var("hello") x;
    provide("B");
    val_equal(x, "world") a;
    assert(a);

    var("hello") x;
    provide("C");
    val_equal(x, "hello") a;
    assert(a);
    depend("C_done");
    val_equal(x, "world") a;
    assert(a);

    var("hello") x;
    blocker() blk;
    provide("D");
    val_equal(x, "hello") a;
    assert(a);
    blk->up();
    val_equal(x, "0") a;
    assert(a);
    blk->down();
    blk->up();
    val_equal(x, "1") a;
    assert(a);

    exit("0");
}

process proc1 {
    depend("B") dep;
    dep.x->set("world");
}

process proc2 {
    depend("C") dep;
    sleep("0", "0");
    dep.x->set("world");
    provide("C_done");
}

process proc3 {
    depend("D") dep;
    dep.blk->use();
    provide("E");
}

process proc4 {
    var("0") i;
    depend("E") dep;
    dep.dep.x->set(i);
    num_add(i, "1") j;
    i->set(j);
}