2016-04-15 15:19:22 +02:00
|
|
|
/*
|
2011-12-22 16:19:25 +01:00
|
|
|
* \brief RM root interface
|
2016-04-15 15:19:22 +02:00
|
|
|
* \author Norman Feske
|
|
|
|
* \date 2016-04-17
|
2011-12-22 16:19:25 +01:00
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
2017-02-20 13:23:52 +01:00
|
|
|
* Copyright (C) 2016-2017 Genode Labs GmbH
|
2011-12-22 16:19:25 +01:00
|
|
|
*
|
|
|
|
* This file is part of the Genode OS framework, which is distributed
|
2017-02-20 13:23:52 +01:00
|
|
|
* under the terms of the GNU Affero General Public License version 3.
|
2011-12-22 16:19:25 +01:00
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef _CORE__INCLUDE__RM_ROOT_H_
|
|
|
|
#define _CORE__INCLUDE__RM_ROOT_H_
|
|
|
|
|
2016-04-15 15:19:22 +02:00
|
|
|
/* Genode includes */
|
2011-12-22 16:19:25 +01:00
|
|
|
#include <root/component.h>
|
|
|
|
|
2016-01-19 20:24:22 +01:00
|
|
|
/* core-local includes */
|
2011-12-22 16:19:25 +01:00
|
|
|
#include <rm_session_component.h>
|
2016-01-19 20:24:22 +01:00
|
|
|
#include <rpc_cap_factory.h>
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-04-15 15:19:22 +02:00
|
|
|
namespace Genode { class Rm_root; }
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
|
2016-04-15 15:19:22 +02:00
|
|
|
class Genode::Rm_root : public Root_component<Rm_session_component>
|
|
|
|
{
|
|
|
|
private:
|
2012-12-14 09:29:49 +01:00
|
|
|
|
2016-04-15 15:19:22 +02:00
|
|
|
Pager_entrypoint &_pager_ep;
|
2012-12-14 09:29:49 +01:00
|
|
|
|
2016-04-15 15:19:22 +02:00
|
|
|
protected:
|
2015-08-10 13:34:16 +02:00
|
|
|
|
2019-02-14 22:39:08 +01:00
|
|
|
Rm_session_component *_create_session(const char *args) override
|
2016-04-15 15:19:22 +02:00
|
|
|
{
|
|
|
|
size_t ram_quota = Arg_string::find_arg(args, "ram_quota").ulong_value(0);
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-04-15 15:19:22 +02:00
|
|
|
return new (md_alloc())
|
|
|
|
Rm_session_component(*this->ep(), *md_alloc(), _pager_ep, ram_quota);
|
|
|
|
}
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2019-02-13 15:47:33 +01:00
|
|
|
void _upgrade_session(Rm_session_component *rm, const char *args) override
|
2016-04-15 15:19:22 +02:00
|
|
|
{
|
|
|
|
size_t ram_quota = Arg_string::find_arg(args, "ram_quota").ulong_value(0);
|
2019-02-13 15:47:33 +01:00
|
|
|
rm->upgrade_ram_quota(ram_quota);
|
2016-04-15 15:19:22 +02:00
|
|
|
}
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-04-15 15:19:22 +02:00
|
|
|
public:
|
2011-12-22 16:19:25 +01:00
|
|
|
|
2016-04-15 15:19:22 +02:00
|
|
|
/**
|
|
|
|
* Constructor
|
|
|
|
*
|
|
|
|
* \param session_ep entry point for managing RM session objects
|
|
|
|
* \param md_alloc meta data allocator to be used by root component
|
|
|
|
* \param pager_ep pager entrypoint
|
|
|
|
*/
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
Rm_root(Rpc_entrypoint &session_ep,
|
|
|
|
Allocator &md_alloc,
|
2016-04-15 15:19:22 +02:00
|
|
|
Pager_entrypoint &pager_ep)
|
|
|
|
:
|
base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
|
|
|
Root_component<Rm_session_component>(&session_ep, &md_alloc),
|
2016-04-15 15:19:22 +02:00
|
|
|
_pager_ep(pager_ep)
|
|
|
|
{ }
|
|
|
|
};
|
2011-12-22 16:19:25 +01:00
|
|
|
|
|
|
|
#endif /* _CORE__INCLUDE__RM_ROOT_H_ */
|