/usr/include/tango/lockthread.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 : LockThread.h
//
// description : Include for the LockThread object. This class implements
// the locking thread
//
// project : TANGO
//
// author(s) : E.Taurel
//
// 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 _LOCKTHREAD_H
#define _LOCKTHREAD_H
#include <tango.h>
#ifndef _TG_WINDOWS_
#include <sys/time.h>
#endif
namespace Tango
{
//=============================================================================
//
// The LockThCmd structure
//
// description : This structure is used to shared data between the locking
// thread and the main thread.
//
//=============================================================================
struct LockThCmd
{
bool cmd_pending; // The new command flag
LockCmdCode cmd_code; // The command code
string dev_name; // The device name
DevLong lock_validity; // The lock validity
bool suicide; // The suicide flag
};
struct LockedDevice
{
string dev_name; // The locked device name
DevLong validity; // The locked device validity
bool operator<(LockedDevice &arg) {return validity < arg.validity;}
};
enum LockCmdType
{
LOCK_TIME_OUT = 0,
LOCK_COMMAND
};
//=============================================================================
//
// The LockThread class
//
// description : Class to store all the necessary information for the
// locking thread. It's run() method is the thread code
//
//=============================================================================
class TangoMonitor;
class LockThread: public omni_thread
{
public:
LockThread(LockThCmd &,TangoMonitor &,DeviceProxy *,string &,DevLong);
void run(void *);
void execute_cmd();
void one_more_lock();
void unlock_all_devs();
void update_th_period();
void compute_sleep_time(bool);
LockCmdType get_command(DevLong);
protected:
LockThCmd &shared_cmd;
TangoMonitor &p_mon;
LockThCmd local_cmd;
DevLong sleep;
vector<LockedDevice> locked_devices;
vector<string> re_lock_cmd_args;
DevLong period;
DevLong period_ms;
DeviceProxy *admin_proxy;
struct timeval next_work;
};
} // End of Tango namespace
#endif /* _LOCKTHREAD_ */
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