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// **********************************************************************
//
// Copyright (c) 2003-2018 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifdef _WIN32
# include <IceUtil/Config.h>
#endif
#include <Dispatcher.h>
#include <Connection.h>
#include <Thread.h>
#include <Ice/Initialize.h>
using namespace std;
using namespace IcePy;
namespace IcePy
{
struct DispatcherCallObject
{
PyObject_HEAD
Ice::DispatcherCallPtr* call;
};
}
#ifdef WIN32
extern "C"
#endif
static void
dispatcherCallDealloc(DispatcherCallObject* self)
{
delete self->call;
Py_TYPE(self)->tp_free(reinterpret_cast<PyObject*>(self));
}
#ifdef WIN32
extern "C"
#endif
static PyObject*
dispatcherCallInvoke(DispatcherCallObject* self, PyObject* /*args*/, PyObject* /*kwds*/)
{
try
{
AllowThreads allowThreads; // Release Python's global interpreter lock during blocking calls.
(*self->call)->run();
}
catch(const Ice::Exception& ex)
{
setPythonException(ex);
return 0;
}
return incRef(Py_None);
}
namespace IcePy
{
PyTypeObject DispatcherCallType =
{
/* The ob_type field must be initialized in the module init function
* to be portable to Windows without using C++. */
PyVarObject_HEAD_INIT(0, 0)
STRCAST("IcePy.DispatcherCall"), /* tp_name */
sizeof(DispatcherCallObject), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
reinterpret_cast<destructor>(dispatcherCallDealloc), /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_reserved */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
reinterpret_cast<ternaryfunc>(dispatcherCallInvoke), /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
0, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
0, /* tp_new */
0, /* tp_free */
0, /* tp_is_gc */
};
}
bool
IcePy::initDispatcher(PyObject* module)
{
if(PyType_Ready(&DispatcherCallType) < 0)
{
return false;
}
PyTypeObject* type = &DispatcherCallType; // Necessary to prevent GCC's strict-alias warnings.
if(PyModule_AddObject(module, STRCAST("DispatcherCall"), reinterpret_cast<PyObject*>(type)) < 0)
{
return false;
}
return true;
}
IcePy::Dispatcher::Dispatcher(PyObject* dispatcher) :
_dispatcher(dispatcher)
{
if(!PyCallable_Check(dispatcher))
{
throw Ice::InitializationException(__FILE__, __LINE__, "dispatcher must be a callable");
}
Py_INCREF(dispatcher);
}
void
IcePy::Dispatcher::setCommunicator(const Ice::CommunicatorPtr& communicator)
{
_communicator = communicator;
}
void
IcePy::Dispatcher::dispatch(const Ice::DispatcherCallPtr& call, const Ice::ConnectionPtr& con)
{
AdoptThread adoptThread; // Ensure the current thread is able to call into Python.
DispatcherCallObject* obj =
reinterpret_cast<DispatcherCallObject*>(DispatcherCallType.tp_alloc(&DispatcherCallType, 0));
if(!obj)
{
return;
}
obj->call = new Ice::DispatcherCallPtr(call);
PyObjectHandle c = createConnection(con, _communicator);
PyObjectHandle tmp = PyObject_CallFunction(_dispatcher.get(), STRCAST("OO"), obj, c.get());
Py_DECREF(reinterpret_cast<PyObject*>(obj));
if(!tmp.get())
{
throwPythonException();
}
}
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