C++ (Cpp) no_reply Examples

Example #1

File: irq.cpp Project: 702nADOS-archive/L4Re-AdmCtrl-SB-BA

PUBLIC
L4_msg_tag
Irq_muxer::kinvoke(L4_obj_ref, L4_fpage::Rights /*rights*/, Syscall_frame *f,
                   Utcb const *utcb, Utcb *)
{
  register Context *const c_thread = ::current();
  assert_opt (c_thread);
  register Space *const c_space = c_thread->space();
  assert_opt (c_space);

  L4_msg_tag tag = f->tag();

  if (EXPECT_FALSE(tag.proto() != L4_msg_tag::Label_irq))
    return commit_result(-L4_err::EBadproto);

  if (EXPECT_FALSE(tag.words() < 1))
    return commit_result(-L4_err::EInval);

  switch ((utcb->values[0] & 0xffff))
    {
    case Op_chain:
      return sys_attach(tag, utcb, f, c_space);
    case Op_trigger:
      log();
      hit(0);
      return no_reply();
    default:
      return commit_result(-L4_err::EInval);
    }
}

Example #2

File: vlog.cpp Project: decaprox/l4re-snapshot

PUBLIC
L4_msg_tag
Vlog::kinvoke(L4_obj_ref ref, Mword rights, Syscall_frame *f,
              Utcb const *r_msg, Utcb *s_msg)
{
  L4_msg_tag const t = f->tag();

  if (t.proto() == L4_msg_tag::Label_irq)
    return Icu_h<Vlog>::icu_invoke(ref, rights, f, r_msg, s_msg);
  else if (t.proto() != L4_msg_tag::Label_log)
    return commit_result(-L4_err::EBadproto);

  switch (r_msg->values[0])
    {
    case 0:
      log_string(f, r_msg);
      return no_reply();

    case 2: // set attr
      return set_attr(rights, f, r_msg);

    case 3: // get attr
      return get_attr(rights, f, s_msg);

    default:
      return get_input(rights, f, s_msg);
    }
}