Function poll_until_terminal

tests/test_subprocess.c:256–269

}

static bool poll_until_terminal(cbm_subprocess_t *process, int timeout_ms, cbm_proc_result_t *out) {
    uint64_t deadline = cbm_now_ms() + (uint64_t)timeout_ms;
    do {
        cbm_proc_poll_t state = cbm_subprocess_poll(process, out);
        if (state == CBM_PROC_POLL_TERMINAL) {
            return true;
        }
        if (state == CBM_PROC_POLL_ERROR) {
            return false;
        }
        subprocess_test_pause();
    } while (cbm_now_ms() < deadline);
    return cbm_subprocess_poll(process, out) == CBM_PROC_POLL_TERMINAL;
}

static bool make_tree_pid_path(char path[64]) {
    strcpy(path, "/tmp/cbm-subprocess-tree-XXXXXX");