[PATCH] Add register_poll for alsaseq
Hector Martin
hector at marcansoft.com
Wed Apr 21 05:54:49 CEST 2010
Signed-off-by: Hector Martin <hector at marcansoft.com>
---
pyalsa/alsaseq.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/pyalsa/alsaseq.c b/pyalsa/alsaseq.c
index de131a4..bbf6b2e 100644
--- a/pyalsa/alsaseq.c
+++ b/pyalsa/alsaseq.c
@@ -3236,6 +3236,53 @@ Sequencer_stop_queue(SequencerObject *self,
Py_RETURN_NONE;
}
+PyDoc_STRVAR(Sequencer_registerpoll__doc__,
+"register_poll(pollObj, input=False, output=False) -- Register poll file descriptors.");
+
+static PyObject *
+Sequencer_registerpoll(SequencerObject *self, PyObject *args, PyObject *kwds)
+{
+ PyObject *pollObj, *reg, *t;
+ struct pollfd *pfd;
+ int i, count;
+ int input = 0;
+ int output = 0;
+ int mode = POLLIN|POLLOUT;
+
+ static char * kwlist[] = { "pollObj", "input", "output", NULL };
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|ii", kwlist, &pollObj, &input, &output))
+ return NULL;
+
+ if (input && !output)
+ mode = POLLIN;
+ else if (!input && output)
+ mode = POLLOUT;
+
+ count = snd_seq_poll_descriptors_count(self->handle, mode);
+ if (count <= 0)
+ Py_RETURN_NONE;
+ pfd = alloca(sizeof(struct pollfd) * count);
+ count = snd_seq_poll_descriptors(self->handle, pfd, count, mode);
+ if (count <= 0)
+ Py_RETURN_NONE;
+
+ reg = PyObject_GetAttr(pollObj, PyString_InternFromString("register"));
+
+ for (i = 0; i < count; i++) {
+ t = PyTuple_New(2);
+ if (t) {
+ PyTuple_SET_ITEM(t, 0, PyInt_FromLong(pfd[i].fd));
+ PyTuple_SET_ITEM(t, 1, PyInt_FromLong(pfd[i].events));
+ Py_XDECREF(PyObject_CallObject(reg, t));
+ Py_DECREF(t);
+ }
+ }
+
+ Py_XDECREF(reg);
+
+ Py_RETURN_NONE;
+}
@@ -3309,6 +3356,10 @@ static PyMethodDef Sequencer_methods[] = {
(PyCFunction) Sequencer_stop_queue,
METH_VARARGS | METH_KEYWORDS,
Sequencer_stop_queue__doc__},
+ {"register_poll",
+ (PyCFunction) Sequencer_registerpoll,
+ METH_VARARGS | METH_KEYWORDS,
+ Sequencer_registerpoll__doc__},
{NULL}
};
--
1.6.4.4
--------------060801080008070807030804--
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