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Downloaded source from https://sourceforge.net/projects/smartmontools/files/smartmontools/7.0/ and imported here to git. Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
94 lines
2.1 KiB
C++
94 lines
2.1 KiB
C++
/*
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* dev_tunnelled.h
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*
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* Home page of code is: http://www.smartmontools.org
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*
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* Copyright (C) 2008 Christian Franke
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef DEV_TUNNELLED_H
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#define DEV_TUNNELLED_H
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#define DEV_TUNNELLED_H_CVSID "$Id: dev_tunnelled.h 4848 2018-12-05 18:30:46Z chrfranke $"
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#include "dev_interface.h"
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/////////////////////////////////////////////////////////////////////////////
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// tunnelled_device_base
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/// Common functionality for all tunnelled_device classes.
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class tunnelled_device_base
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: virtual public /*implements*/ smart_device
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{
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protected:
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explicit tunnelled_device_base(smart_device * tunnel_dev);
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public:
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virtual ~tunnelled_device_base() throw();
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virtual bool is_open() const;
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virtual bool open();
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virtual bool close();
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virtual bool owns(const smart_device * dev) const;
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virtual void release(const smart_device * dev);
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private:
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smart_device * m_tunnel_base_dev;
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};
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/////////////////////////////////////////////////////////////////////////////
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// tunnelled_device
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/// Implement a device by tunneling through another device
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template <class BaseDev, class TunnelDev>
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class tunnelled_device
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: public BaseDev,
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public tunnelled_device_base
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{
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public:
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typedef TunnelDev tunnel_device_type;
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protected:
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explicit tunnelled_device(tunnel_device_type * tunnel_dev)
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: smart_device(smart_device::never_called),
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tunnelled_device_base(tunnel_dev),
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m_tunnel_dev(tunnel_dev)
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{ }
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// For nvme_device
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explicit tunnelled_device(tunnel_device_type * tunnel_dev, unsigned nsid)
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: smart_device(smart_device::never_called),
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BaseDev(nsid),
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tunnelled_device_base(tunnel_dev),
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m_tunnel_dev(tunnel_dev)
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{ }
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public:
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virtual void release(const smart_device * dev)
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{
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if (m_tunnel_dev == dev)
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m_tunnel_dev = 0;
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tunnelled_device_base::release(dev);
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}
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tunnel_device_type * get_tunnel_dev()
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{ return m_tunnel_dev; }
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const tunnel_device_type * get_tunnel_dev() const
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{ return m_tunnel_dev; }
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private:
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tunnel_device_type * m_tunnel_dev;
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};
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#endif // DEV_TUNNELLED_H
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