/usr/include/tango/subdev_diag.h is in libtango-dev 9.2.5a+dfsg1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// file : subdev_diag.h
//
// description : Collect information on all used sub devices
// in a device server.
//
// project : TANGO
//
// author(s) : J.Meyer
//
// Copyright (C) : 2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015
// European Synchrotron Radiation Facility
// BP 220, Grenoble 38043
// FRANCE
//
// This file is part of Tango.
//
// Tango is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Tango is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Tango. If not, see <http://www.gnu.org/licenses/>.
//
// $Revision: 27410 $
//
//=============================================================================
#ifndef _SUBDEV_DIAG_H
#define _SUBDEV_DIAG_H
#include <tango.h>
namespace Tango
{
class SubDevDiag
{
private:
// Type definition and map to keep the
// list of accessed sub devices in a device server.
// List structure to store every device
// and its sub devices.
typedef struct sub_dev_list
{
bool modified; // was the list modified?
vector<string> sub_devices; // list of sub devices
} SubDeviceList;
// map and mutex to keep a list of sub devices per device
map<std::string,SubDeviceList> sub_device_map;
omni_mutex sub_dev_map_mutex;
// map to keep a list of sub devices per device as read from
// the database cache
map<std::string,SubDeviceList> sub_device_startup_map;
public:
// Constructor
SubDevDiag() {};
// destructor to free map data
~SubDevDiag();
// Set the device name that should be asscociated to a thread
// in the device server
void set_associated_device(string dev_name);
// Get the device name that is asscociated
// with the current thread of the device server
string get_associated_device();
// Register a sub device for an associated device
// in the list of sub devices of the device server
void register_sub_device (string dev_name, string sub_dev_name);
// Remove all sub devices for a device of the server
void remove_sub_devices (string dev_name);
// Remove all sub devices
void remove_sub_devices();
// Read the list of registered sub devices
Tango::DevVarStringArray *get_sub_devices();
// Store the list of sub devices when modified into the database
void store_sub_devices();
// Store the list sub devices at server start-up from the DB cache.
void get_sub_devices_from_cache();
};
} // End of Tango namespace
#endif /* SUBDEV_DIAG */
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