lib/tevent/pytevent.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #include <Python.h>
  20 #include <tevent.h>
  21 #include <stdbool.h>
  22 #include <tevent_util.h>
  23
  24 typedef struct {
  25         PyObject_HEAD
  26         struct tevent_context *ev_ctx;
  27 } PyTEventContextObject;
  28
  29 PyAPI_DATA(PyTypeObject) PyTEventContext;
  30
  31 static PyObject *py_set_default_backend(PyObject *self, PyObject *args)
  32 {
  33     char *name;
  34
  35     if (!PyArg_ParseTuple(args, "s", &name))
  36         return NULL;
  37     tevent_set_default_backend(name);
  38     Py_RETURN_NONE;
  39 }
  40
  41 static PyObject *py_backend_list(PyObject *self)
  42 {
  43     const char **backends = tevent_backend_list(NULL);
  44     PyObject *ret;
  45     int i, len;
  46
  47     len = ev_str_list_length(backends);
  48     ret = PyList_New(len);
  49     for (i = 0; i < len; i++)
  50         PyList_SetItem(ret, i, PyString_FromString(backends[i]));
  51     talloc_free(backends);
  52
  53     return ret;
  54 }
  55
  56 static PyMethodDef tevent_methods[] = {
  57     { "set_default_backend", (PyCFunction)py_set_default_backend,
  58         METH_VARARGS, "set_default_backend(name) -> None" },
  59     { "backend_list", (PyCFunction)py_backend_list,
  60         METH_NOARGS, "backend_list() -> list" },
  61     { NULL },
  62 };
  63
  64 static PyObject *py_event_ctx_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
  65 {
  66     const char *kwnames[] = { "name", NULL };
  67     char *name = NULL;
  68     struct tevent_context *ev_ctx;
  69     PyTEventContextObject *ret;
  70     if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s", (char **)kwnames, &name))
  71         return NULL;
  72
  73     if (name == NULL)
  74         ev_ctx = tevent_context_init(NULL);
  75     else
  76         ev_ctx = tevent_context_init_byname(NULL, name);
  77
  78     ret = (PyTEventContextObject *)type->tp_alloc(type, 0);
  79     ret->ev_ctx = ev_ctx;
  80     return (PyObject *)ret;
  81 }
  82
  83 static PyObject *py_event_ctx_loop_once(PyTEventContextObject *self)
  84 {
  85     return PyInt_FromLong(tevent_loop_once(self->ev_ctx));
  86 }
  87
  88 static PyObject *py_event_ctx_loop_wait(PyTEventContextObject *self)
  89 {
  90     return PyInt_FromLong(tevent_loop_wait(self->ev_ctx));
  91 }
  92
  93 static PyMethodDef py_event_ctx_methods[] = {
  94     { "loop_once", (PyCFunction)py_event_ctx_loop_once, METH_NOARGS,
  95         "S.loop_once() -> int" },
  96     { "loop_wait", (PyCFunction)py_event_ctx_loop_wait, METH_NOARGS,
  97         "S.loop_wait() -> int" },
  98     { NULL }
  99 };
 100
 101 static void py_event_ctx_dealloc(PyTEventContextObject * self)
 102 {
 103         talloc_free(self->ev_ctx);
 104         self->ob_type->tp_free(self);
 105 }
 106
 107
 108 PyTypeObject PyTEventContext = {
 109     .tp_name = "TEventContext",
 110     .tp_methods = py_event_ctx_methods,
 111     .tp_basicsize = sizeof(PyTEventContextObject),
 112     .tp_dealloc = (destructor)py_event_ctx_dealloc,
 113     .tp_flags = Py_TPFLAGS_DEFAULT,
 114     .tp_new = py_event_ctx_new,
 115 };
 116
 117 void inittevent(void)
 118 {
 119     PyObject *m;
 120
 121     if (PyType_Ready(&PyTEventContext) < 0)
 122         return;
 123
 124     m = Py_InitModule3("tevent", tevent_methods, "Event management.");
 125     if (m == NULL)
 126         return;
 127
 128     Py_INCREF(&PyTEventContext);
 129     PyModule_AddObject(m, "TEventContext", (PyObject *)&PyTEventContext);
 130 }
 131