cfdbccc5c2
This is a redesign of the root and parent interfaces to eliminate blocking RPC calls. - New session representation at the parent (base/session_state.h) - base-internal root proxy mechanism as migration path - Redesign of base/service.h - Removes ancient 'Connection::KEEP_OPEN' feature - Interface change of 'Child', 'Child_policy', 'Slave', 'Slave_policy' - New 'Slave::Connection' - Changed child-construction procedure to be compatible with the non-blocking parent interface and to be easier to use - The child's initial LOG session, its binary ROM session, and the linker ROM session have become part of the child's envirenment. - Session upgrading must now be performed via 'env.upgrade' instead of performing a sole RPC call the parent. To make RAM upgrades easier, the 'Connection' provides a new 'upgrade_ram' method. Issue #2120
56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
/*
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* \brief Core-specific 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 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 General Public License version 2.
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*/
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/* Genode includes */
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#include <base/env.h>
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#include <util/retry.h>
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#include <base/rpc_server.h>
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#include <pd_session/client.h>
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/* base-internal includes */
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#include <base/internal/globals.h>
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/* NOVA-specific part of the PD session interface */
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#include <nova_native_pd/client.h>
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using namespace Genode;
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Native_capability Rpc_entrypoint::_alloc_rpc_cap(Pd_session &pd, Native_capability ep,
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addr_t entry)
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{
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if (!_native_pd_cap.valid())
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_native_pd_cap = pd.native_pd();
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Nova_native_pd_client native_pd(_native_pd_cap);
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Untyped_capability new_obj_cap =
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retry<Genode::Pd_session::Out_of_metadata>(
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[&] () {
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return native_pd.alloc_rpc_cap(ep, entry, 0);
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},
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[&] () {
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internal_env().upgrade(Parent::Env::pd(), "ram_quota=16K");
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});
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native_pd.imprint_rpc_cap(new_obj_cap, new_obj_cap.local_name());
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return new_obj_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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return pd.free_rpc_cap(cap);
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}
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