65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
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/*
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* \brief Back end of the RPC entrypoint
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* \author Norman Feske
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* \date 2016-01-19
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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/env.h>
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#include <base/rpc_server.h>
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#include <deprecated/env.h>
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/* base-internal includes */
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#include <base/internal/native_thread.h>
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using namespace Genode;
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Native_capability Rpc_entrypoint::_alloc_rpc_cap(Pd_session& pd, Native_capability,
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addr_t)
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{
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/* first we allocate a cap from core, to allow accounting of caps. */
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for (;;) {
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Ram_quota ram_upgrade { 0 };
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Cap_quota cap_upgrade { 0 };
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try { pd.alloc_rpc_cap(_cap); break; }
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catch (Out_of_ram) { ram_upgrade = Ram_quota { 2*1024*sizeof(long) }; }
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catch (Out_of_caps) { cap_upgrade = Cap_quota { 4 }; }
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env_deprecated()->parent()->upgrade(Parent::Env::pd(),
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String<100>("ram_quota=", ram_upgrade, ", "
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"cap_quota=", cap_upgrade).string());
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}
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return Thread::native_thread().epoll.alloc_rpc_cap();
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}
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void Rpc_entrypoint::_free_rpc_cap(Pd_session& pd, Native_capability cap)
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{
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Native_thread::Epoll &epoll = Thread::native_thread().epoll;
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/*
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* Flag RPC entrypoint as exited to prevent 'free_rpc_cap' from issuing
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* a remote control request.
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*/
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if (_exit_handler.exit)
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epoll.rpc_ep_exited();
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/*
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* Perform the accounting of the PDs cap quota at core, to remain
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* consistent with other kernel platforms.
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*/
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pd.free_rpc_cap(Native_capability());
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epoll.free_rpc_cap(cap);
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}
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