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
46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
/*
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* \brief Utility for using a dynamically upgradeable session
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* \author Norman Feske
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* \date 2013-09-25
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*/
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/*
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* Copyright (C) 2006-2013 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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#ifndef _INCLUDE__BASE__INTERNAL__UPGRADEABLE_CLIENT_H_
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#define _INCLUDE__BASE__INTERNAL__UPGRADEABLE_CLIENT_H_
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#include <base/env.h>
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#include <base/log.h>
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namespace Genode { template <typename> struct Upgradeable_client; }
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/**
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* Client object for a session that may get its session quota upgraded
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*/
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template <typename CLIENT>
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struct Genode::Upgradeable_client : CLIENT
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{
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typedef Genode::Capability<typename CLIENT::Rpc_interface> Capability;
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Parent::Client::Id _id;
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Upgradeable_client(Capability cap, Parent::Client::Id id)
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: CLIENT(cap), _id(id) { }
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void upgrade_ram(size_t quota)
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{
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char buf[128];
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snprintf(buf, sizeof(buf), "ram_quota=%lu", quota);
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env()->parent()->upgrade(_id, buf);
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}
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};
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#endif /* _INCLUDE__BASE__INTERNAL__UPGRADEABLE_CLIENT_H_ */
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