genode/repos/base/include/session/session.h

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/*
* \brief Session
* \author Norman Feske
* \date 2011-05-15
*/
/*
* Copyright (C) 2011-2017 Genode Labs GmbH
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*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
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*/
#ifndef _INCLUDE__SESSION__SESSION_H_
#define _INCLUDE__SESSION__SESSION_H_
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#include <base/quota_guard.h>
#include <base/session_label.h>
#include <util/arg_string.h>
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/*
* Each session interface declares an RPC interface and, therefore, relies on
* the RPC framework. By including 'base/rpc.h' here, we relieve the interfaces
* from including 'base/rpc.h' in addition to 'session/session.h'.
*/
#include <base/rpc.h>
namespace Genode {
struct Session;
/*
* Exceptions that may occur during the session creation
*/
struct Insufficient_ram_quota : Exception { };
struct Insufficient_cap_quota : Exception { };
}
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/**
* Base class of session interfaces
*/
struct Genode::Session
{
struct Resources
{
Ram_quota ram_quota;
Cap_quota cap_quota;
};
struct Diag { bool enabled; };
typedef Session_label Label;
/*
* Each session interface must implement the class function 'service_name'
* ! static const char *service_name();
* This function returns the name of the service provided via the session
* interface.
*/
virtual ~Session() { }
};
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namespace Genode {
static inline Ram_quota ram_quota_from_args(char const *args)
{
return { Arg_string::find_arg(args, "ram_quota").ulong_value(0) };
}
static inline Cap_quota cap_quota_from_args(char const *args)
{
return { Arg_string::find_arg(args, "cap_quota").ulong_value(0) };
}
static inline Session::Label session_label_from_args(char const *args)
{
return label_from_args(args);
}
static inline Session::Resources session_resources_from_args(char const *args)
{
return { ram_quota_from_args(args), cap_quota_from_args(args) };
}
static inline Session::Diag session_diag_from_args(char const *args)
{
return { Arg_string::find_arg(args, "diag").bool_value(false) };
}
}
#endif /* _INCLUDE__SESSION__SESSION_H_ */