1 /*
2 * \brief CAP-session interface
3 * \author Norman Feske
4 * \date 2006-06-23
5 *
6 * A `Cap_session` is an allocator of user-level capabilities.
7 * User-level capabilities are used to reference server objects
8 * across address spaces.
9 */
10
11 /*
12 * Copyright (C) 2006-2013 Genode Labs GmbH
13 *
14 * This file is part of the Genode OS framework, which is distributed
15 * under the terms of the GNU General Public License version 2.
16 */
17
18 #ifndef _INCLUDE__CAP_SESSION__CAP_SESSION_H_
19 #define _INCLUDE__CAP_SESSION__CAP_SESSION_H_
20
21 #include <base/native_types.h>
22 #include <session/session.h>
23
24 namespace Genode {
25
26 struct Cap_session : Session
27 {
28 static const char *service_name() { return "CAP"; }
29
30 virtual ~Cap_session() { }
31
32 /**
33 * Allocate new unique userland capability
34 *
35 * \param ep entry point that will use this capability
36 *
37 * \return new userland capability
38 */
39 virtual Native_capability alloc(Native_capability ep) = 0;
40
41 /**
42 * Free userland capability
43 *
44 * \param cap userland capability to free
45 */
46 virtual void free(Native_capability cap) = 0;
47
48
49 /*********************
50 ** RPC declaration **
51 *********************/
52
53 GENODE_RPC(Rpc_alloc, Native_capability, alloc, Native_capability);
54 GENODE_RPC(Rpc_free, void, free, Native_capability);
55 GENODE_RPC_INTERFACE(Rpc_alloc, Rpc_free);
56 };
57 }
58
59 #endif /* _INCLUDE__CAP_SESSION__CAP_SESSION_H_ */