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
78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
/*
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* \brief Connection to ROM file service
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* \author Norman Feske
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* \date 2008-08-22
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*/
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/*
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* Copyright (C) 2008-2016 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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#ifndef _INCLUDE__ROM_SESSION__CONNECTION_H_
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#define _INCLUDE__ROM_SESSION__CONNECTION_H_
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#include <rom_session/client.h>
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#include <base/connection.h>
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#include <base/log.h>
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namespace Genode { class Rom_connection; }
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class Genode::Rom_connection : public Connection<Rom_session>,
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public Rom_session_client
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{
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public:
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class Rom_connection_failed : public Parent::Exception { };
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enum { RAM_QUOTA = 4096UL };
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private:
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Rom_session_capability _session(Parent &parent, char const *label)
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{
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return session("ram_quota=%ld, label=\"%s\"", RAM_QUOTA, label);
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}
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public:
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/**
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* Constructor
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*
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* \param label request label and name of ROM module
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*
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* \throw Rom_connection_failed
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*/
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Rom_connection(Env &env, const char *label)
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try :
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Connection<Rom_session>(env, _session(env.parent(), label)),
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Rom_session_client(cap())
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{ }
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catch (...) {
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error("Could not open ROM session for \"", label, "\"");
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throw Rom_connection_failed();
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}
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/**
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* Constructor
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*
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* \noapi
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* \deprecated Use the constructor with 'Env &' as first
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* argument instead
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*/
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Rom_connection(const char *label)
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try :
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Connection<Rom_session>(_session(*env()->parent(), label)),
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Rom_session_client(cap())
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{ }
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catch (...) {
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error("Could not open ROM session for \"", label, "\"");
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throw Rom_connection_failed();
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}
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};
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#endif /* _INCLUDE__ROM_SESSION__CONNECTION_H_ */
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