Annotation of embedaddon/smartmontools/dev_tunnelled.h, revision 1.1.1.1
1.1 misho 1: /*
2: * dev_tunnelled.h
3: *
4: * Home page of code is: http://smartmontools.sourceforge.net
5: *
6: * Copyright (C) 2008 Christian Franke <smartmontools-support@lists.sourceforge.net>
7: *
8: * This program is free software; you can redistribute it and/or modify
9: * it under the terms of the GNU General Public License as published by
10: * the Free Software Foundation; either version 2, or (at your option)
11: * any later version.
12: *
13: * You should have received a copy of the GNU General Public License
14: * (for example COPYING); If not, see <http://www.gnu.org/licenses/>.
15: *
16: */
17:
18: #ifndef DEV_TUNNELLED_H
19: #define DEV_TUNNELLED_H
20:
21: #define DEV_TUNNELLED_H_CVSID "$Id: dev_tunnelled.h,v 1.1 2008/07/25 21:16:00 chrfranke Exp $\n"
22:
23: #include "dev_interface.h"
24:
25: /////////////////////////////////////////////////////////////////////////////
26: // tunnelled_device_base
27:
28: /// Common functionality for all tunnelled_device classes.
29:
30: class tunnelled_device_base
31: : virtual public /*implements*/ smart_device
32: {
33: protected:
34: explicit tunnelled_device_base(smart_device * tunnel_dev);
35:
36: public:
37: virtual ~tunnelled_device_base() throw();
38:
39: virtual bool is_open() const;
40:
41: virtual bool open();
42:
43: virtual bool close();
44:
45: virtual bool owns(const smart_device * dev) const;
46:
47: virtual void release(const smart_device * dev);
48:
49: private:
50: smart_device * m_tunnel_base_dev;
51: };
52:
53:
54: /////////////////////////////////////////////////////////////////////////////
55: // tunnelled_device
56:
57: /// Implement a device by tunneling through another device
58:
59: template <class BaseDev, class TunnelDev>
60: class tunnelled_device
61: : public BaseDev,
62: public tunnelled_device_base
63: {
64: public:
65: typedef TunnelDev tunnel_device_type;
66:
67: protected:
68: explicit tunnelled_device(tunnel_device_type * tunnel_dev)
69: : smart_device(smart_device::never_called),
70: tunnelled_device_base(tunnel_dev),
71: m_tunnel_dev(tunnel_dev)
72: { }
73:
74: public:
75: virtual void release(const smart_device * dev)
76: {
77: if (m_tunnel_dev == dev)
78: m_tunnel_dev = 0;
79: tunnelled_device_base::release(dev);
80: }
81:
82: tunnel_device_type * get_tunnel_dev()
83: { return m_tunnel_dev; }
84:
85: const tunnel_device_type * get_tunnel_dev() const
86: { return m_tunnel_dev; }
87:
88: private:
89: tunnel_device_type * m_tunnel_dev;
90: };
91:
92: #endif // DEV_TUNNELLED_H
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