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/*
* SPDX-FileCopyrightText: All Contributors to the PyTango project
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
#include "precompiled_header.hpp"
#include "pytgutils.h"
#include "fast_from_py.h"
#include "to_py_numpy.hpp"
namespace PyDeviceData
{
Tango::CmdArgType get_type(Tango::DeviceData &self)
{
/// @todo This should change in Tango itself, get_type should not return int!!
return static_cast<Tango::CmdArgType>(self.get_type());
}
/// @name Scalar Insertion
/// @{
template <long tangoTypeConst>
void insert_scalar(Tango::DeviceData &self, bopy::object py_value)
{
typedef typename TANGO_const2type(tangoTypeConst) TangoScalarType;
TangoScalarType value;
from_py<tangoTypeConst>::convert(py_value.ptr(), value);
self << value;
}
template <>
void insert_scalar<Tango::DEV_STRING>(Tango::DeviceData &self, bopy::object py_value)
{
PyObject *py_value_ptr = py_value.ptr();
if(PyUnicode_Check(py_value_ptr))
{
PyObject *obj_bytes_ptr = EncodeAsLatin1(py_value_ptr);
Tango::DevString value = PyBytes_AsString(obj_bytes_ptr);
self << value;
Py_DECREF(obj_bytes_ptr);
}
else if(PyBytes_Check(py_value_ptr))
{
Tango::DevString value = PyBytes_AsString(py_value_ptr);
self << value;
}
else
{
raise_(PyExc_TypeError, "can't translate python object to C char* in insert_scalar<Tango::DEV_STRING>");
}
}
template <>
void insert_scalar<Tango::DEV_ENCODED>(Tango::DeviceData &self, bopy::object py_value)
{
Tango::DevEncoded val;
bopy::object p0 = py_value[0];
const char *encoded_format = bopy::extract<const char *>(p0.ptr());
val.encoded_format = CORBA::string_dup(encoded_format);
view_pybytes_as_char_array(py_value[1], val.encoded_data);
// By giving a value (not a pointer) to << the data will be copied by CORBA
self << val;
}
template <>
void insert_scalar<Tango::DEV_VOID>(Tango::DeviceData &self, bopy::object py_value)
{
raise_(PyExc_TypeError, "Trying to insert a value in a DEV_VOID DeviceData!");
}
template <>
void insert_scalar<Tango::DEV_PIPE_BLOB>(Tango::DeviceData &self, bopy::object py_value)
{
assert(false);
}
/// @}
// ~Scalar Insertion
// -----------------------------------------------------------------------
/// @name Array Insertion
/// @{
template <long tangoArrayTypeConst>
void insert_array(Tango::DeviceData &self, bopy::object py_value)
{
typedef typename TANGO_const2type(tangoArrayTypeConst) TangoArrayType;
// self << val; -->> This ends up doing:
// inline void operator << (DevVarUShortArray* datum)
// { any.inout() <<= datum;}
// So:
// - We loose ownership of the pointer, should not remove it
// - it's a CORBA object who gets ownership, not a buggy Tango
// thing. So the last parameter to fast_convert2array is false
TangoArrayType *val = fast_convert2array<tangoArrayTypeConst>(py_value);
self << val;
}
/// @}
// ~Array Insertion
// -----------------------------------------------------------------------
/// @name Scalar Extraction
/// @{
template <long tangoTypeConst>
bopy::object extract_scalar(Tango::DeviceData &self)
{
typedef typename TANGO_const2type(tangoTypeConst) TangoScalarType;
/// @todo CONST_DEV_STRING ell el tracta com DEV_STRING
TangoScalarType val;
self >> val;
return bopy::object(val);
}
template <>
bopy::object extract_scalar<Tango::DEV_VOID>(Tango::DeviceData &self)
{
return bopy::object();
}
template <>
bopy::object extract_scalar<Tango::DEV_STRING>(Tango::DeviceData &self)
{
typedef std::string TangoScalarType;
TangoScalarType val;
self >> val;
return from_char_to_boost_str(val);
}
template <>
bopy::object extract_scalar<Tango::DEV_PIPE_BLOB>(Tango::DeviceData &self)
{
assert(false);
return bopy::object();
}
/// @}
// ~Scalar Extraction
// -----------------------------------------------------------------------
/// @name Array extraction
/// @{
template <long tangoArrayTypeConst>
bopy::object extract_array(Tango::DeviceData &self, bopy::object &py_self, PyTango::ExtractAs extract_as)
{
typedef typename TANGO_const2type(tangoArrayTypeConst) TangoArrayType;
// const is the pointed, not the pointer. So cannot modify the data.
// And that's because the data is still inside "self" after extracting.
// This also means that we are not supposed to "delete" tmp_ptr.
const TangoArrayType *tmp_ptr;
self >> tmp_ptr;
switch(extract_as)
{
default:
case PyTango::ExtractAsNumpy:
return to_py_numpy<tangoArrayTypeConst>(tmp_ptr, py_self);
case PyTango::ExtractAsList:
case PyTango::ExtractAsPyTango3:
return to_py_list(tmp_ptr);
case PyTango::ExtractAsTuple:
return to_py_tuple(tmp_ptr);
case PyTango::ExtractAsString: /// @todo
case PyTango::ExtractAsNothing:
return bopy::object();
}
}
template <>
bopy::object extract_array<Tango::DEVVAR_STATEARRAY>(Tango::DeviceData &self,
bopy::object &py_self,
PyTango::ExtractAs extract_as)
{
assert(false);
return bopy::object();
}
/// @}
// ~Array Extraction
// -----------------------------------------------------------------------
bopy::object extract(bopy::object py_self, PyTango::ExtractAs extract_as)
{
Tango::DeviceData &self = bopy::extract<Tango::DeviceData &>(py_self);
TANGO_DO_ON_DEVICE_DATA_TYPE_ID(self.get_type(), return extract_scalar<tangoTypeConst>(self);
, return extract_array<tangoTypeConst>(self, py_self, extract_as););
return bopy::object();
}
void insert(Tango::DeviceData &self, long data_type, bopy::object py_value)
{
TANGO_DO_ON_DEVICE_DATA_TYPE_ID(data_type, insert_scalar<tangoTypeConst>(self, py_value);
, insert_array<tangoTypeConst>(self, py_value););
}
} // namespace PyDeviceData
void export_device_data()
{
bopy::class_<Tango::DeviceData> DeviceData("DeviceData", bopy::init<>());
bopy::scope scope_dd = DeviceData;
/// @todo get rid of except_flags everywhere... or really use and export them everywhere!
bopy::enum_<Tango::DeviceData::except_flags>("except_flags")
.value("isempty_flag", Tango::DeviceData::isempty_flag)
.value("wrongtype_flag", Tango::DeviceData::wrongtype_flag)
.value("numFlags", Tango::DeviceData::numFlags);
DeviceData
.def(bopy::init<const Tango::DeviceData &>())
.def("extract", &PyDeviceData::extract, (arg_("self"), arg_("extract_as") = PyTango::ExtractAsNumpy))
.def("insert", &PyDeviceData::insert, (arg_("self"), arg_("data_type"), arg_("value")))
/// @todo do not throw exceptions!!
.def("is_empty", &Tango::DeviceData::is_empty)
// TODO
// void exceptions(bitset<numFlags> fl) {exceptions_flags = fl;}
// bitset<numFlags> exceptions() {return exceptions_flags;}
// void reset_exceptions(except_flags fl) {exceptions_flags.reset((size_t)fl);}
// void set_exceptions(except_flags fl) {exceptions_flags.set((size_t)fl);}
.def("get_type", &PyDeviceData::get_type);
}
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