/usr/include/tango/w_attrsetval.tpp 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 : w_attrsetval.tpp
//
// description : C++ source code for the WAttribute class template methods
//
// project : TANGO
//
// author(s) : E.Taurel
//
// Copyright (C) : 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: 17240 $
//
//-===================================================================================================================
#ifndef _WATTRSETVAL_TPP
#define _WATTRSETVAL_TPP
#ifdef HAS_TYPE_TRAITS
#include <type_traits>
#endif
namespace Tango
{
//+-----------------------------------------------------------------------------------------------------------------
//
// method :
// WAttribute::get_write_value()
//
// description :
// Get value written by the client. These two templated methods are used for enumerated attribute
//
// args :
// out :
// - data : User data to be initialized
//
//-----------------------------------------------------------------------------------------------------------------
template <typename T>
void WAttribute::get_write_value(T &data)
{
//
// First some check on user type
//
T dum;
check_type(dum,"WAttribute::get_write_value");
//
// Then, init user data
//
data = static_cast<T>(short_val);
}
template <typename T>
void WAttribute::get_write_value(const T *&ptr)
{
//
// First some check on user type
//
T dum;
check_type(dum,"WAttribute::get_write_value");
//
// Then, init user data
//
ptr = (const T *)short_ptr;
}
//+-----------------------------------------------------------------------------------------------------------------
//
// method :
// WAttribute::check_type()
//
// description :
// Check user type given to the template get_write_value() method
//
// args :
// in :
// - dummy : Dummy data used to pass type
// - origin : Calling method name (for exception)
//
//-----------------------------------------------------------------------------------------------------------------
template <typename T>
void WAttribute::check_type(T &dummy,const string &origin)
{
#ifdef HAS_UNDERLYING
bool short_enum = is_same<short,typename underlying_type<T>::type>::value;
bool uns_int_enum = is_same<unsigned int,typename underlying_type<T>::type>::value;
if (short_enum == false && uns_int_enum == false)
{
stringstream ss;
ss << "Invalid enumeration type. Supported types are C++11 scoped enum with short as underlying data type\n";
ss << "or old enum";
Except::throw_exception(API_IncompatibleArgumentType,ss.str(),origin);
}
#endif // HAS_UNDERLYING
//
// Check if the input type is an enum and if it is from the valid type
//
#ifdef HAS_TYPE_TRAITS
if (is_enum<T>::value == false)
{
Except::throw_exception(API_IncompatibleArgumentType,
"The input argument data type is not an enumeration",origin);
}
#endif // HAS_TYPE_TRAITS
Tango::DeviceClass *dev_class;
try
{
DeviceImpl *dev = get_att_device();
dev_class = dev->get_device_class();
}
catch (Tango::DevFailed &e)
{
string reas = e.errors[0].reason.in();
if (reas == API_DeviceNotFound)
{
Util *tg = Util::instance();
const vector<Tango::DeviceClass *> *cl_list_ptr = tg->get_class_list();
dev_class = (*cl_list_ptr)[cl_list_ptr->size() - 2];
}
else
throw;
}
Tango::MultiClassAttribute *mca = dev_class->get_class_attr();
Tango::Attr &att = mca->get_attr(name);
if (att.same_type(typeid(T)) == false)
{
stringstream ss;
ss << "Invalid enumeration type. Requested enum type is " << att.get_enum_type();
Except::throw_exception(API_IncompatibleArgumentType,ss.str(),origin);
}
}
//+-----------------------------------------------------------------------------------------------------------------
//
// method :
// WAttribute::set_write_value()
//
// description :
// Set written part of a WAttribute. These two templated methods are used for enumerated attribute
//
// args :
// in :
// - val : Data to be set as written value
//
//-----------------------------------------------------------------------------------------------------------------
template <typename T>
void WAttribute::set_write_value(T val)
{
check_type(val,"WAttribute::set_write_value");
CORBA::Any tmp_any;
Tango::DevVarShortArray tmp_seq(1);
tmp_seq.length(1);
tmp_seq[0] = (short)val;
tmp_any <<= tmp_seq;
check_written_value(tmp_any,1,0);
copy_data(tmp_any);
set_user_set_write_value(true);
}
template <typename T>
void WAttribute::set_write_value(T *val, long x, long y)
{
T dum;
check_type(dum,"WAttribute::set_write_value");
long nb_data;
if (y == 0)
nb_data = x;
else
nb_data = x * y;
short *ptr = new short [nb_data];
for (int i = 0;i < nb_data;i++)
ptr[i] = (short)val[i];
try
{
Tango::DevVarShortArray tmp_seq(nb_data,nb_data,ptr,false);
CORBA::Any tmp_any;
tmp_any <<= tmp_seq;
check_written_value(tmp_any, x, y);
copy_data(tmp_any);
set_user_set_write_value(true);
delete [] ptr;
}
catch (...)
{
delete [] ptr;
throw;
}
}
template <typename T>
void WAttribute::set_write_value(vector<T> &val, long x, long y)
{
T dum;
check_type(dum,"WAttribute::set_write_value");
short *ptr = new short [val.size()];
for (unsigned int i = 0;i < val.size();i++)
ptr[i] = (short)val[i];
try
{
Tango::DevVarShortArray tmp_seq(val.size(),val.size(),ptr,false);
CORBA::Any tmp_any;
tmp_any <<= tmp_seq;
check_written_value(tmp_any, x, y);
copy_data(tmp_any);
set_user_set_write_value(true);
delete [] ptr;
}
catch (...)
{
delete [] ptr;
throw;
}
}
} // End of Tango namespace
#endif // _WATTRSETVAL_TPP
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