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
  21 #ifndef Py_RETURN_NONE
  22 #define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None
  23 #endif
  24
  25 #include <tevent.h>
  26 #include <stdbool.h>
  27 #include <tevent_util.h>
  28
  29 typedef struct {
  30         PyObject_HEAD
  31         struct tevent_context *ev_ctx;
  32 } PyTEventContextObject;
  33
  34 PyAPI_DATA(PyTypeObject) PyTEventContext;
  35
  36 static PyObject *py_set_default_backend(PyObject *self, PyObject *args)
  37 {
  38     char *name;
  39
  40     if (!PyArg_ParseTuple(args, "s", &name))
  41         return NULL;
  42     tevent_set_default_backend(name);
  43     Py_RETURN_NONE;
  44 }
  45
  46 static PyObject *py_backend_list(PyObject *self)
  47 {
  48     const char **backends = tevent_backend_list(NULL);
  49     PyObject *ret;
  50     int i, len;
  51
  52     len = ev_str_list_length(backends);
  53     ret = PyList_New(len);
  54     for (i = 0; i < len; i++)
  55         PyList_SetItem(ret, i, PyString_FromString(backends[i]));
  56     talloc_free(backends);
  57
  58     return ret;
  59 }
  60
  61 static PyMethodDef tevent_methods[] = {
  62     { "set_default_backend", (PyCFunction)py_set_default_backend,
  63         METH_VARARGS, "set_default_backend(name) -> None" },
  64     { "backend_list", (PyCFunction)py_backend_list,
  65         METH_NOARGS, "backend_list() -> list" },
  66     { NULL },
  67 };
  68
  69 static PyObject *py_event_ctx_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
  70 {
  71     const char *kwnames[] = { "name", NULL };
  72     char *name = NULL;
  73     struct tevent_context *ev_ctx;
  74     PyTEventContextObject *ret;
  75     if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s", (char **)kwnames, &name))
  76         return NULL;
  77
  78     if (name == NULL)
  79         ev_ctx = tevent_context_init(NULL);
  80     else
  81         ev_ctx = tevent_context_init_byname(NULL, name);
  82
  83     ret = (PyTEventContextObject *)type->tp_alloc(type, 0);
  84     ret->ev_ctx = ev_ctx;
  85     return (PyObject *)ret;
  86 }
  87
  88 static PyObject *py_event_ctx_loop_once(PyTEventContextObject *self)
  89 {
  90     return PyInt_FromLong(tevent_loop_once(self->ev_ctx));
  91 }
  92
  93 static PyObject *py_event_ctx_loop_wait(PyTEventContextObject *self)
  94 {
  95     return PyInt_FromLong(tevent_loop_wait(self->ev_ctx));
  96 }
  97
  98 static PyMethodDef py_event_ctx_methods[] = {
  99     { "loop_once", (PyCFunction)py_event_ctx_loop_once, METH_NOARGS,
 100         "S.loop_once() -> int" },
 101     { "loop_wait", (PyCFunction)py_event_ctx_loop_wait, METH_NOARGS,
 102         "S.loop_wait() -> int" },
 103     { NULL }
 104 };
 105
 106 static void py_event_ctx_dealloc(PyTEventContextObject * self)
 107 {
 108         talloc_free(self->ev_ctx);
 109         self->ob_type->tp_free(self);
 110 }
 111
 112
 113 PyTypeObject PyTEventContext = {
 114     .tp_name = "TEventContext",
 115     .tp_methods = py_event_ctx_methods,
 116     .tp_basicsize = sizeof(PyTEventContextObject),
 117     .tp_dealloc = (destructor)py_event_ctx_dealloc,
 118     .tp_flags = Py_TPFLAGS_DEFAULT,
 119     .tp_new = py_event_ctx_new,
 120 };
 121
 122 void inittevent(void)
 123 {
 124     PyObject *m;
 125
 126     if (PyType_Ready(&PyTEventContext) < 0)
 127         return;
 128
 129     m = Py_InitModule3("tevent", tevent_methods, "Event management.");
 130     if (m == NULL)
 131         return;
 132
 133     Py_INCREF(&PyTEventContext);
 134     PyModule_AddObject(m, "TEventContext", (PyObject *)&PyTEventContext);
 135 }
 136