pycallback.cpp

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/** @file
 *  @author Bram de Greve (bram@cocamware.com)
 *  @author Tom De Muer (tom@cocamware.com)
 *
 *  *** BEGIN LICENSE INFORMATION ***
 *  
 *  The contents of this file are subject to the Common Public Attribution License 
 *  Version 1.0 (the "License"); you may not use this file except in compliance with 
 *  the License. You may obtain a copy of the License at 
 *  http://lass.sourceforge.net/cpal-license. The License is based on the 
 *  Mozilla Public License Version 1.1 but Sections 14 and 15 have been added to cover 
 *  use of software over a computer network and provide for limited attribution for 
 *  the Original Developer. In addition, Exhibit A has been modified to be consistent 
 *  with Exhibit B.
 *  
 *  Software distributed under the License is distributed on an "AS IS" basis, WITHOUT 
 *  WARRANTY OF ANY KIND, either express or implied. See the License for the specific 
 *  language governing rights and limitations under the License.
 *  
 *  The Original Code is LASS - Library of Assembled Shared Sources.
 *  
 *  The Initial Developer of the Original Code is Bram de Greve and Tom De Muer.
 *  The Original Developer is the Initial Developer.
 *  
 *  All portions of the code written by the Initial Developer are:
 *  Copyright (C) 2004-2026 the Initial Developer.
 *  All Rights Reserved.
 *  
 *  Contributor(s):
 *
 *  Alternatively, the contents of this file may be used under the terms of the 
 *  GNU General Public License Version 2 or later (the GPL), in which case the 
 *  provisions of GPL are applicable instead of those above.  If you wish to allow use
 *  of your version of this file only under the terms of the GPL and not to allow 
 *  others to use your version of this file under the CPAL, indicate your decision by 
 *  deleting the provisions above and replace them with the notice and other 
 *  provisions required by the GPL License. If you do not delete the provisions above,
 *  a recipient may use your version of this file under either the CPAL or the GPL.
 *  
 *  *** END LICENSE INFORMATION ***
 */
 
 
 
#include "python_common.h"
#include "pycallback.h"
#include "pyobject_macros.h"
#include "_lass_module.h"
 
namespace lass
{
namespace python
{
namespace impl
{
 
const std::string MultiCallbackImplBase::repr() const
{
    // convert container to python equivalent and ask repr of that.
    return std::string("MultiCallbackRepr");
}
 
}
    PY_DECLARE_CLASS( MultiCallback )
    PY_CLASS_METHOD( MultiCallback, reset )
    PY_CLASS_PY_METHOD_EX( MultiCallback, callVar, "call", "" )
    PY_CLASS_PY_METHOD_EX( MultiCallback, addVar, "add", "" )
    PY_CLASS_METHOD_NAME( MultiCallback, repr, methods::_repr_ )
    LASS_EXECUTE_BEFORE_MAIN_EX( MultiCallback_executeBeforeMain,
        MultiCallback::_lassPyClassDef.setSlot(Py_tp_call, &MultiCallback::_tp_call);
    )
 
    MultiCallback::~MultiCallback()
    {
    }
 
    MultiCallback::MultiCallback(TPimpl&& pimpl)
    {
        init(std::move(pimpl));
    }
 
    // wrapping the call ourselves as the macro's and templates have difficulties
    // automatically wrapping everything up
    PyObject * MultiCallback::_tp_call(PyObject * self, PyObject *args, PyObject* kwargs)
    {
        LockGIL lock;
        if (!PyType_IsSubtype(self->ob_type , MultiCallback::_lassPyClassDef.type() ))
        {
            PyErr_SetString(PyExc_TypeError,"not castable to MultiCallback");
            return 0;
        }
        if (kwargs)
        {
            if (!PyDict_CheckExact(kwargs))
            {
                PyErr_BadInternalCall();
                return 0;
            }
            if (PyDict_Size(kwargs) != 0)
            {
                PyErr_SetString(PyExc_TypeError, "function takes no keyword arguments");
                return 0;
            }
        }
        return static_cast<MultiCallback*>(self)->callVar(args);
    }
 
    void MultiCallback::init(TPimpl&& pimpl)
    {
        impl::initLassModule();
        impl::fixObjectType(this);
        pimpl_ = std::move(pimpl);
    }
    
    std::string MultiCallback::repr() const
    {
        return pimpl_->repr();
    }
    
    void MultiCallback::reset()
    {
        pimpl_->reset();
    }
 
    void MultiCallback::call(const python::TPyObjPtr& args)
    {
        LockGIL lock;
        pimpl_->call(args,this);
    }
    PyObject* MultiCallback::callVar(PyObject* args) 
    { 
        LockGIL lock;
        try
        {
            call(python::fromNakedToSharedPtrCast<PyObject>(args));
        }
        LASS_PYTHON_CATCH_AND_RETURN_EX(nullptr)
        Py_RETURN_NONE;
    }
    const std::type_info& MultiCallback::type() const
    {
        return pimpl_->type();
    }
    void* MultiCallback::raw(bool writable) const
    {
        return pimpl_->raw(writable);
    }
 
    Py_ssize_t MultiCallback::length( PyObject* self)
    {
        return static_cast<MultiCallback*>(self)->pimpl_->length();
    }
    void MultiCallback::add(const python::TPyObjPtr& args)
    {
        LockGIL lock;
        pimpl_->add(args);
    }
    PyObject* MultiCallback::addVar(PyObject* args)
    {
        LockGIL lock;
        try
        {
            add(python::fromNakedToSharedPtrCast<PyObject>(args));
        }
        LASS_PYTHON_CATCH_AND_RETURN_EX(nullptr)
        Py_RETURN_NONE;
    }
 
}
 
}