96 lines
2.1 KiB
C++
96 lines
2.1 KiB
C++
/*
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* \brief Session
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* \author Norman Feske
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* \date 2011-05-15
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*/
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/*
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* Copyright (C) 2011-2017 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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#ifndef _INCLUDE__SESSION__SESSION_H_
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#define _INCLUDE__SESSION__SESSION_H_
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#include <base/quota_guard.h>
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#include <base/session_label.h>
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#include <util/arg_string.h>
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/*
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* Each session interface declares an RPC interface and, therefore, relies on
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* the RPC framework. By including 'base/rpc.h' here, we relieve the interfaces
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* from including 'base/rpc.h' in addition to 'session/session.h'.
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*/
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#include <base/rpc.h>
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namespace Genode {
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struct Session;
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/*
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* Exceptions that may occur during the session creation
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*/
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struct Insufficient_ram_quota : Exception { };
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struct Insufficient_cap_quota : Exception { };
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struct Service_denied : Exception { };
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}
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/**
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* Base class of session interfaces
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*/
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struct Genode::Session
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{
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struct Resources
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{
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Ram_quota ram_quota;
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Cap_quota cap_quota;
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};
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struct Diag { bool enabled; };
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typedef Session_label Label;
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/*
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* Each session interface must implement the class function 'service_name'
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* ! static const char *service_name();
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* This function returns the name of the service provided via the session
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* interface.
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*/
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virtual ~Session() { }
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};
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namespace Genode {
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static inline Ram_quota ram_quota_from_args(char const *args)
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{
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return { Arg_string::find_arg(args, "ram_quota").ulong_value(0) };
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}
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static inline Cap_quota cap_quota_from_args(char const *args)
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{
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return { Arg_string::find_arg(args, "cap_quota").ulong_value(0) };
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}
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static inline Session::Label session_label_from_args(char const *args)
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{
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return label_from_args(args);
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}
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static inline Session::Resources session_resources_from_args(char const *args)
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{
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return { ram_quota_from_args(args), cap_quota_from_args(args) };
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}
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static inline Session::Diag session_diag_from_args(char const *args)
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{
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return { Arg_string::find_arg(args, "diag").bool_value(false) };
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}
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}
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#endif /* _INCLUDE__SESSION__SESSION_H_ */
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