mirror of
https://github.com/genodelabs/genode.git
synced 2025-01-08 14:02:56 +00:00
85 lines
2.0 KiB
C++
85 lines
2.0 KiB
C++
/*
|
|
* \brief ROM service provided to Noux processes
|
|
* \author Norman Feske
|
|
* \date 2013-07-18
|
|
*
|
|
* The local ROM service has the sole purpose of tracking ROM dataspaces
|
|
* so that they are properly detached from RM sessions when the corresponding
|
|
* ROM sessions are closed.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2013 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU General Public License version 2.
|
|
*/
|
|
|
|
#ifndef _NOUX__LOCAL_ROM_SERVICE_H_
|
|
#define _NOUX__LOCAL_ROM_SERVICE_H_
|
|
|
|
/* Genode includes */
|
|
#include <base/service.h>
|
|
|
|
/* Noux includes */
|
|
#include <dataspace_registry.h>
|
|
#include <rom_session_component.h>
|
|
|
|
namespace Noux {
|
|
|
|
class Local_rom_service : public Service
|
|
{
|
|
private:
|
|
|
|
Rpc_entrypoint &_ep;
|
|
Dataspace_registry &_ds_registry;
|
|
|
|
public:
|
|
|
|
Local_rom_service(Rpc_entrypoint &ep, Dataspace_registry &ds_registry)
|
|
:
|
|
Service(Rom_session::service_name()), _ep(ep),
|
|
_ds_registry(ds_registry)
|
|
{ }
|
|
|
|
Genode::Session_capability session(const char *args, Affinity const &)
|
|
{
|
|
enum { NAME_MAX_LEN = 128 };
|
|
char name[NAME_MAX_LEN];
|
|
Arg_string::find_arg(args, "filename").string(name, sizeof(name), "<noname>");
|
|
|
|
try {
|
|
Rom_session_component *rom = new (env()->heap())
|
|
Rom_session_component(_ds_registry, name);
|
|
|
|
return _ep.manage(rom);
|
|
} catch (Rom_connection::Rom_connection_failed) {
|
|
throw Service::Unavailable();
|
|
}
|
|
}
|
|
|
|
void upgrade(Genode::Session_capability, const char *args) { }
|
|
|
|
void close(Genode::Session_capability session)
|
|
{
|
|
/* acquire locked session object */
|
|
Rom_session_component *rom_session;
|
|
|
|
_ep.apply(session, [&] (Rom_session_component *rsc) {
|
|
rom_session = rsc;
|
|
|
|
if (!rom_session) {
|
|
PWRN("Unexpected call of close with non-ROM-session argument");
|
|
return;
|
|
}
|
|
|
|
_ep.dissolve(rom_session);
|
|
});
|
|
|
|
destroy(env()->heap(), rom_session);
|
|
}
|
|
};
|
|
}
|
|
|
|
#endif /* _NOUX__LOCAL_ROM_SERVICE_H_ */
|