genode/repos/base/include/region_map/client.h
2017-02-28 12:59:29 +01:00

56 lines
1.7 KiB
C++

/*
* \brief Client-side stub for region map
* \author Christian Helmuth
* \author Norman Feske
* \date 2006-07-11
*/
/*
* Copyright (C) 2006-2017 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 _INCLUDE__REGION_MAP__CLIENT_H_
#define _INCLUDE__REGION_MAP__CLIENT_H_
#include <base/rpc_client.h>
#include <region_map/region_map.h>
namespace Genode { class Region_map_client; }
class Genode::Region_map_client : public Rpc_client<Region_map>
{
private:
/*
* Multiple calls to get the dataspace capability on NOVA lead to the
* situation that the caller gets each time a new mapping of the same
* capability at different indices. But the client/caller assumes to
* get every time the very same index, e.g., in Noux the index is used
* to look up data structures attached to the capability. Therefore, we
* cache the dataspace capability on the first request.
*
* On all other base platforms, this member variable remains unused.
*/
Dataspace_capability _rm_ds_cap;
public:
explicit Region_map_client(Capability<Region_map>);
Local_addr attach(Dataspace_capability ds, size_t size = 0,
off_t offset = 0, bool use_local_addr = false,
Local_addr local_addr = (void *)0,
bool executable = false) override;
void detach(Local_addr) override;
void fault_handler(Signal_context_capability) override;
State state() override;
Dataspace_capability dataspace() override;
};
#endif /* _INCLUDE__REGION_MAP__CLIENT_H_ */