mirror of https://github.com/nymea/nymea.git
126 lines
4.0 KiB
C
126 lines
4.0 KiB
C
#ifndef PYTHINGSETUPINFO_H
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#define PYTHINGSETUPINFO_H
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#include <Python.h>
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#include "structmember.h"
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#include "pything.h"
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#include "integrations/thingsetupinfo.h"
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Winvalid-offsetof"
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#pragma GCC diagnostic ignored "-Wwrite-strings"
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#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
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/* Note:
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*
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* When using this, make sure to call PyThingSetupInfo_setInfo() while holding the GIL to initialize
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* stuff after constructing it. Also set info to nullptr while holding the GIL when the info object vanishes.
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*
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* The ThingSetupInfo class is not threadsafe and self->info is owned by nymeas main thread.
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* So we must never directly access anything of it in here.
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*
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* For writing to it, invoking methods with QueuedConnections will thread-decouple stuff.
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* Make sure to check if the info object is still valid (it might not be if nymea finished
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* the setup and destroyed it but the PyThingSetupInfo is not garbage collected yet.
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*
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* For reading access, we keep copies of the thing properties here and sync them
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* over to the according py* members when they change.
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*
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*/
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typedef struct {
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PyObject_HEAD
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ThingSetupInfo* info;
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PyThing *pyThing;
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} PyThingSetupInfo;
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static PyObject* PyThingSetupInfo_new(PyTypeObject *type, PyObject *args, PyObject *kwds) {
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PyThingSetupInfo *self = (PyThingSetupInfo*)type->tp_alloc(type, 0);
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if (self == NULL) {
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return nullptr;
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}
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qCDebug(dcPythonIntegrations()) << "+++ PyThingSetupInfo";
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static char *kwlist[] = {"thing", nullptr};
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PyObject *pyThing = nullptr;
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if (!PyArg_ParseTupleAndKeywords(args, kwds, "O", kwlist, &pyThing)) {
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PyErr_Print();
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PyErr_SetString(PyExc_ValueError, "Invalid arguments.");
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return nullptr;
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}
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self->pyThing = (PyThing*)pyThing;
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Py_INCREF(self->pyThing);
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return (PyObject*)self;
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}
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static void PyThingSetupInfo_dealloc(PyThingSetupInfo * self) {
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qCDebug(dcPythonIntegrations()) << "--- PyThingSetupInfo";
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Py_DECREF(self->pyThing);
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Py_TYPE(self)->tp_free(self);
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}
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static PyObject * PyThingSetupInfo_finish(PyThingSetupInfo* self, PyObject* args) {
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int status;
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char *message = nullptr;
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if (!PyArg_ParseTuple(args, "i|s", &status, &message)) {
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PyErr_SetString(PyExc_TypeError, "Invalid arguments in finish call. Expected: finish(ThingError, message = \"\"");
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return nullptr;
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}
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Thing::ThingError thingError = static_cast<Thing::ThingError>(status);
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QString displayMessage = message != nullptr ? QString(message) : QString();
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if (self->info) {
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QMetaObject::invokeMethod(self->info, "finish", Qt::QueuedConnection, Q_ARG(Thing::ThingError, thingError), Q_ARG(QString, displayMessage));
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}
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Py_RETURN_NONE;
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}
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static PyMemberDef PyThingSetupInfo_members[] = {
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{"thing", T_OBJECT_EX, offsetof(PyThingSetupInfo, pyThing), 0, "Thing being setup in this setup transaction"},
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{nullptr, 0, 0, 0, nullptr} /* Sentinel */
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};
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static PyMethodDef PyThingSetupInfo_methods[] = {
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{ "finish", (PyCFunction)PyThingSetupInfo_finish, METH_VARARGS, "finish a setup" },
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{nullptr, nullptr, 0, nullptr} // sentinel
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};
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static PyTypeObject PyThingSetupInfoType = {
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PyVarObject_HEAD_INIT(NULL, 0)
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"nymea.ThingSetupInfo", /* tp_name */
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sizeof(PyThingSetupInfo), /* tp_basicsize */
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0, /* tp_itemsize */
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(destructor)PyThingSetupInfo_dealloc, /* tp_dealloc */
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};
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static void registerThingSetupInfoType(PyObject *module)
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{
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PyThingSetupInfoType.tp_new = (newfunc)PyThingSetupInfo_new;
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PyThingSetupInfoType.tp_flags = Py_TPFLAGS_DEFAULT;
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PyThingSetupInfoType.tp_methods = PyThingSetupInfo_methods;
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PyThingSetupInfoType.tp_members = PyThingSetupInfo_members;
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PyThingSetupInfoType.tp_doc = "The ThingSetupInfo is used to set up a thing.";
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if (PyType_Ready(&PyThingSetupInfoType) < 0) {
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return;
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}
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PyModule_AddObject(module, "ThingSetupInfo", (PyObject *)&PyThingSetupInfoType);
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}
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#pragma GCC diagnostic pop
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#endif // PYTHINGSETUPINFO_H
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