78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
/*
|
|
* \brief Filter framebuffer policy
|
|
* \author Christian Prochaska
|
|
* \date 2012-04-11
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2012-2013 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 _FILTER_FRAMEBUFFER_POLICY_H_
|
|
#define _FILTER_FRAMEBUFFER_POLICY_H_
|
|
|
|
/* Genode includes */
|
|
#include <base/service.h>
|
|
#include <os/slave.h>
|
|
|
|
|
|
class Filter_framebuffer_policy : public Genode::Slave_policy
|
|
{
|
|
private:
|
|
|
|
Genode::Service_registry &_framebuffer_in;
|
|
Genode::Service_registry &_framebuffer_out;
|
|
|
|
protected:
|
|
|
|
const char **_permitted_services() const
|
|
{
|
|
static const char *permitted_services[] = {
|
|
"CAP", "LOG", "RM", "ROM", "SIGNAL",
|
|
"Timer", 0 };
|
|
|
|
return permitted_services;
|
|
};
|
|
|
|
public:
|
|
|
|
Filter_framebuffer_policy(const char *name,
|
|
Genode::Rpc_entrypoint &entrypoint,
|
|
Genode::Service_registry &framebuffer_in,
|
|
Genode::Service_registry &framebuffer_out)
|
|
: Genode::Slave_policy(name, entrypoint, Genode::env()->ram_session()),
|
|
_framebuffer_in(framebuffer_in),
|
|
_framebuffer_out(framebuffer_out) { }
|
|
|
|
Genode::Service *resolve_session_request(const char *service_name,
|
|
const char *args)
|
|
{
|
|
if (strcmp(service_name, "Framebuffer") == 0) {
|
|
Genode::Client client;
|
|
return _framebuffer_in.wait_for_service(service_name, &client, name());
|
|
}
|
|
|
|
return Slave_policy::resolve_session_request(service_name, args);
|
|
}
|
|
|
|
bool announce_service(const char *name,
|
|
Genode::Root_capability root,
|
|
Genode::Allocator *alloc,
|
|
Genode::Server *server)
|
|
{
|
|
if (strcmp(name, "Framebuffer") == 0) {
|
|
_framebuffer_out.insert(new (alloc) Genode::Child_service(name, root, server));
|
|
return true;
|
|
}
|
|
|
|
return Slave_policy::announce_service(name, root, alloc, server);
|
|
}
|
|
|
|
|
|
};
|
|
|
|
#endif /* _FILTER_FRAMEBUFFER_POLICY_H_ */
|