74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
/*
|
|
* \brief TRACE root interface
|
|
* \author Norman Feske
|
|
* \date 2013-08-12
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2013-2017 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#ifndef _CORE__INCLUDE__TRACE__ROOT_H_
|
|
#define _CORE__INCLUDE__TRACE__ROOT_H_
|
|
|
|
/* Genode includes */
|
|
#include <root/component.h>
|
|
|
|
/* core-internal includes */
|
|
#include <trace/session_component.h>
|
|
|
|
namespace Genode { namespace Trace { class Root; } }
|
|
|
|
|
|
class Genode::Trace::Root : public Genode::Root_component<Session_component>
|
|
{
|
|
private:
|
|
|
|
Source_registry &_sources;
|
|
Policy_registry &_policies;
|
|
|
|
protected:
|
|
|
|
Session_component *_create_session(const char *args)
|
|
{
|
|
size_t ram_quota = Arg_string::find_arg(args, "ram_quota").ulong_value(0);
|
|
size_t arg_buffer_size = Arg_string::find_arg(args, "arg_buffer_size").ulong_value(0);
|
|
unsigned parent_levels = Arg_string::find_arg(args, "parent_levels").ulong_value(0);
|
|
|
|
if (arg_buffer_size > ram_quota)
|
|
throw Root::Invalid_args();
|
|
|
|
return new (md_alloc())
|
|
Session_component(*md_alloc(), ram_quota, arg_buffer_size,
|
|
parent_levels, label_from_args(args).string(), _sources, _policies);
|
|
}
|
|
|
|
void _upgrade_session(Session_component *s, const char *args)
|
|
{
|
|
size_t ram_quota = Arg_string::find_arg(args, "ram_quota").ulong_value(0);
|
|
s->upgrade_ram_quota(ram_quota);
|
|
}
|
|
|
|
public:
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* \param session_ep entry point for managing session objects
|
|
* \param md_alloc meta data allocator used by root component
|
|
* \param ram_quota RAM for tracing purposes of this session
|
|
* \param arg_buffer_size session argument-buffer size
|
|
*/
|
|
Root(Rpc_entrypoint *session_ep, Allocator *md_alloc,
|
|
Source_registry &sources, Policy_registry &policies)
|
|
:
|
|
Root_component<Session_component>(session_ep, md_alloc),
|
|
_sources(sources), _policies(policies)
|
|
{ }
|
|
};
|
|
|
|
#endif /* _CORE__INCLUDE__TRACE__ROOT_H_ */
|