57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/*
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* \brief Helper classes to make raw Nova IPC calls which can't be expressed
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* via the Genode base RPC abstractions
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* \author Alexander Boettcher
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*
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*/
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/*
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* Copyright (C) 2016-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* Genode includes */
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#include <base/thread.h>
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/* test specific includes */
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#include "server.h"
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using namespace Test;
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long Test::cap_void_manual(Genode::Native_capability dst,
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Genode::Native_capability arg1,
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Genode::addr_t &local_reply)
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{
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if (!arg1.valid())
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return Genode::Rpc_exception_code::INVALID_OBJECT;
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Genode::Thread * myself = Genode::Thread::myself();
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Nova::Utcb *utcb = reinterpret_cast<Nova::Utcb *>(myself->utcb());
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/* save original receive window */
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Nova::Crd orig_crd = utcb->crd_rcv;
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/* don't open receive window */
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utcb->crd_rcv = Nova::Obj_crd();
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/* not used on base-nova */
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utcb->msg()[0] = 0;
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/* method number of RPC interface to be called on server side */
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utcb->msg()[1] = 0;
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utcb->set_msg_word(2);
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Nova::Crd crd = Genode::Capability_space::crd(arg1);
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if (!utcb->append_item(crd, 0, false, false, false))
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return Genode::Rpc_exception_code::INVALID_OBJECT;
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Genode::uint8_t res = Nova::call(dst.local_name());
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/* restore original receive window */
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utcb->crd_rcv = orig_crd;
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local_reply = utcb->msg()[1];
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return (res == Nova::NOVA_OK && utcb->msg_words() == 3 && utcb->msg()[2])
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? utcb->msg()[0] : Genode::Rpc_exception_code::INVALID_OBJECT;
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}
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