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/**
* Python plugin for Orthanc
* Copyright (C) 2020-2022 Osimis S.A., Belgium
* Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
*
* This program is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This program 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
* Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
**/
#include "ICallbackRegistration.h"
#include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h"
#include "PythonLock.h"
PyObject *ICallbackRegistration::Apply(ICallbackRegistration& registration,
PyObject* args,
PyObject*& singletonCallback,
const std::string& details)
{
// https://docs.python.org/3/extending/extending.html#calling-python-functions-from-c
PyObject* callback = NULL;
if (!PyArg_ParseTuple(args, "O", &callback) ||
callback == NULL)
{
const std::string message = "Expected a callback function to register one " + details;
PyErr_SetString(PyExc_ValueError, message.c_str());
return NULL;
}
else if (singletonCallback != NULL)
{
const std::string message = "Can only register one " + details;
PyErr_SetString(PyExc_RuntimeError, message.c_str());
return NULL;
}
else
{
OrthancPlugins::LogInfo("Registering one " + details);
registration.Register();
singletonCallback = callback;
Py_XINCREF(singletonCallback);
Py_INCREF(Py_None);
return Py_None;
}
}
void ICallbackRegistration::Unregister(PyObject*& singletonCallback)
{
PythonLock lock;
if (singletonCallback != NULL)
{
Py_XDECREF(singletonCallback);
}
}
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