/usr/include/tango/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 : attsetval.tpp
//
// description : C++ source code for the Attribute class template methods when they are not specialized and
// related to attribute value setting
//
// 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 _ATTRSETVAL_TPP
#define _ATTRSETVAL_TPP
#ifdef HAS_TYPE_TRAITS
#include <type_traits>
#endif
namespace Tango
{
//+-------------------------------------------------------------------------------------------------------------------
//
// method :
// Attribute::set_value
//
// description :
// Set the attribute read value and quality. This method automatically set the date when it has been called
//
// This method is overloaded several times for all the supported attribute data type. Nevertheless, one
// template method is defined (this one) which will be called for all data types with no overload.
// This is the case for enumeration data type
//
// argument :
// in :
// - enum_ptr : The attribute read value
// - x : The attribute x dimension (default is 1)
// - y : The atttribute y dimension (default is 0)
// - release : A flag set to true if memory must be de-allocated (default is false)
//
//-------------------------------------------------------------------------------------------------------------------
template <typename T>
void Attribute::set_value(T *enum_ptr,long x,long y,bool release)
{
//
// Throw exception if attribute data type is not correct
//
if (data_type != Tango::DEV_ENUM)
{
SAFE_DELETE(enum_ptr);
stringstream o;
o << "Invalid data type for attribute " << name << ends;
Except::throw_exception(API_AttrOptProp,o.str(),"Attribute::set_value()");
}
#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)
{
SAFE_DELETE(enum_ptr);
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(),"Attribute::set_value()");
}
#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)
{
SAFE_DELETE(enum_ptr);
Except::throw_exception(API_IncompatibleArgumentType,
"The input argument data type is not an enumeration",
"Attribute::set_value()");
}
#endif // HAS_TYPE_TRAITS
//
// Check if enum labels are defined
//
if (enum_labels.size() == 0)
{
SAFE_DELETE(enum_ptr);
stringstream ss;
ss << "Attribute " << name << " data type is enum but no enum labels are defined!";
Except::throw_exception(API_AttrOptProp,ss.str(),"Attribute::set_value()");
}
//
// Check enum type
//
DeviceImpl *dev = get_att_device();
Tango::DeviceClass *dev_class = dev->get_device_class();
Tango::MultiClassAttribute *mca = dev_class->get_class_attr();
Tango::Attr &att = mca->get_attr(name);
if (att.same_type(typeid(T)) == false)
{
SAFE_DELETE(enum_ptr);
stringstream ss;
ss << "Invalid enumeration type. Requested enum type is " << att.get_enum_type();
Except::throw_exception(API_IncompatibleArgumentType,ss.str(),"Attribute::set_value()");
}
//
// Check that data size is less than the given max
//
if ((x > max_x) || (y > max_y))
{
SAFE_DELETE(enum_ptr);
stringstream o;
o << "Data size for attribute " << name << " exceeds given limit" << ends;
Except::throw_exception(API_AttrOptProp,o.str(),"Attribute::set_value()");
}
//
// Compute data size and set default quality to valid.
//
dim_x = x;
dim_y = y;
set_data_size();
quality = Tango::ATTR_VALID;
//
// Throw exception if pointer is null and data_size != 0
//
if (data_size != 0)
{
CHECK_PTR(enum_ptr,name);
}
//
// If the data is wanted from the DevState command, store it in a sequence. If the attribute has an associated
// writable attribute, store data in a temporary buffer (the write value must be added before the data is sent
// back to the caller)
//
if (data_size > enum_nb)
{
if (enum_nb != 0)
delete [] loc_enum_ptr;
loc_enum_ptr = new short [data_size];
enum_nb = data_size;
}
short max_val = (short)enum_labels.size() - 1;
for (int i = 0;i < data_size;i++)
{
loc_enum_ptr[i] = (short)enum_ptr[i];
if (loc_enum_ptr[i] < 0 || loc_enum_ptr[i] > max_val)
{
SAFE_DELETE(enum_ptr);
enum_nb = 0;
stringstream ss;
ss << "Wrong value for attribute " << name;
ss << ". Element " << i << " (value = " << loc_enum_ptr[i] << ") is negative or above the limit defined by the enum (" << max_val << ").";
delete [] loc_enum_ptr;
Except::throw_exception(API_AttrOptProp,ss.str(),"Attribute::set_value()");
}
}
SAFE_DELETE(enum_ptr);
if (date == false)
{
value.sh_seq = new Tango::DevVarShortArray(data_size,data_size,loc_enum_ptr,false);
}
else
{
if ((is_writ_associated() == true))
{
if (data_format == Tango::SCALAR)
{
tmp_sh[0] = *loc_enum_ptr;
}
else
{
value.sh_seq = new Tango::DevVarShortArray(data_size);
value.sh_seq->length(data_size);
::memcpy(value.sh_seq->get_buffer(false),loc_enum_ptr,data_size * sizeof(Tango::DevShort));
}
}
else
{
if ((data_format == Tango::SCALAR) && (release == true))
{
value.sh_seq = new Tango::DevVarShortArray(data_size,data_size,loc_enum_ptr,false);
}
else
value.sh_seq = new Tango::DevVarShortArray(data_size,data_size,loc_enum_ptr,release);
}
}
value_flag = true;
//
// Reset alarm flags
//
alarm.reset();
//
// Get time
//
set_time();
}
template <typename T>
void Attribute::set_value_date_quality(T *p_data,time_t t,Tango::AttrQuality qual,long x,long y,bool release)
{
set_value(p_data,x,y,release);
set_quality(qual,false);
set_date(t);
if (qual == Tango::ATTR_INVALID)
{
if (!((is_writ_associated() == true) && (data_format == Tango::SCALAR)))
delete_seq();
}
}
#ifdef _TG_WINDOWS_
template <typename T>
void Attribute::set_value_date_quality(T *p_data,struct _timeb &t,Tango::AttrQuality qual,long x,long y,bool release)
{
set_value(p_data,x,y,release);
set_quality(qual,false);
set_date(t);
if (qual == Tango::ATTR_INVALID)
{
if (!((is_writ_associated() == true) && (data_format == Tango::SCALAR)))
delete_seq();
}
}
#else
template <typename T>
void Attribute::set_value_date_quality(T *p_data,struct timeval &t,Tango::AttrQuality qual,long x,long y,bool release)
{
set_value(p_data,x,y,release);
set_quality(qual,false);
set_date(t);
if (qual == Tango::ATTR_INVALID)
{
if (!((is_writ_associated() == true) && (data_format == Tango::SCALAR)))
delete_seq();
}
}
#endif
} // End of Tango namespace
#endif // _ATTRSETVAL_TPP
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