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python/ext/py-sink.c: add 'with' interface (PEP 343)

--- a/python/ext/py-sink.c

+++ b/python/ext/py-sink.c

@@ -203,10 +203,25 @@

   Py_RETURN_NONE;

 }

+static char Pyaubio_sink_enter_doc[] = "";

+static PyObject* Pyaubio_sink_enter(Py_sink *self, PyObject *unused) {

+  Py_INCREF(self);

+  return (PyObject*)self;

+}

+

+static char Pyaubio_sink_exit_doc[] = "";

+static PyObject* Pyaubio_sink_exit(Py_sink *self, PyObject *unused) {

+  return Pyaubio_sink_close(self, unused);

+}

+

 static PyMethodDef Py_sink_methods[] = {

   {"do", (PyCFunction) Py_sink_do, METH_VARARGS, Py_sink_do_doc},

   {"do_multi", (PyCFunction) Py_sink_do_multi, METH_VARARGS, Py_sink_do_multi_doc},

   {"close", (PyCFunction) Pyaubio_sink_close, METH_NOARGS, Py_sink_close_doc},

+  {"__enter__", (PyCFunction)Pyaubio_sink_enter, METH_NOARGS,

+    Pyaubio_sink_enter_doc},

+  {"__exit__",  (PyCFunction)Pyaubio_sink_exit, METH_VARARGS,

+    Pyaubio_sink_exit_doc},

   {NULL} /* sentinel */

 };

-- 

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