--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Swig interface to tdb.
+
+ Copyright (C) 2004-2006 Tim Potter <tpot@samba.org>
+ Copyright (C) 2007-2008 Jelmer Vernooij <jelmer@samba.org>
+
+ ** NOTE! The following LGPL license applies to the tdb
+ ** library. This does NOT imply that all of Samba is released
+ ** under the LGPL
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 3 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <Python.h>
+#ifdef HAVE_FSTAT
+#undef HAVE_FSTAT
+#endif
+
+/* Include tdb headers */
+#include <stdint.h>
+#include <signal.h>
+#include <tdb.h>
+#include <fcntl.h>
+
+typedef struct {
+ PyObject_HEAD
+ TDB_CONTEXT *ctx;
+} PyTdbObject;
+
+PyAPI_DATA(PyTypeObject) PyTdb;
+
+static void PyErr_SetTDBError(TDB_CONTEXT *tdb)
+{
+ PyErr_SetObject(PyExc_RuntimeError,
+ Py_BuildValue("(i,s)", tdb_error(tdb), tdb_errorstr(tdb)));
+}
+
+static TDB_DATA PyString_AsTDB_DATA(PyObject *data)
+{
+ TDB_DATA ret;
+ ret.dptr = (unsigned char *)PyString_AsString(data);
+ ret.dsize = PyString_Size(data);
+ return ret;
+}
+
+static PyObject *PyString_FromTDB_DATA(TDB_DATA data)
+{
+ if (data.dptr == NULL && data.dsize == 0) {
+ return Py_None;
+ } else {
+ PyObject *ret = PyString_FromStringAndSize((const char *)data.dptr,
+ data.dsize);
+ free(data.dptr);
+ return ret;
+ }
+}
+
+#define PyErr_TDB_ERROR_IS_ERR_RAISE(ret, tdb) \
+ if (ret != 0) { \
+ PyErr_SetTDBError(tdb); \
+ return NULL; \
+ }
+
+static PyObject *py_tdb_open(PyTypeObject *type, PyObject *args, PyObject *kwargs)
+{
+ char *name;
+ int hash_size = 0, tdb_flags = TDB_DEFAULT, flags = O_RDWR, mode = 0600;
+ TDB_CONTEXT *ctx;
+ PyTdbObject *ret;
+ const char *kwnames[] = { "name", "hash_size", "tdb_flags", "flags", "mode", NULL };
+
+ if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s|iiii", (char **)kwnames, &name, &hash_size, &tdb_flags, &flags, &mode))
+ return NULL;
+
+ ctx = tdb_open(name, hash_size, tdb_flags, flags, mode);
+ if (ctx == NULL) {
+ PyErr_SetFromErrno(PyExc_IOError);
+ return NULL;
+ }
+
+ ret = PyObject_New(PyTdbObject, &PyTdb);
+ ret->ctx = ctx;
+ return (PyObject *)ret;
+}
+
+static PyObject *obj_transaction_cancel(PyTdbObject *self)
+{
+ int ret = tdb_transaction_cancel(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_transaction_commit(PyTdbObject *self)
+{
+ int ret = tdb_transaction_commit(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_transaction_recover(PyTdbObject *self)
+{
+ int ret = tdb_transaction_recover(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_transaction_start(PyTdbObject *self)
+{
+ int ret = tdb_transaction_start(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_reopen(PyTdbObject *self)
+{
+ int ret = tdb_reopen(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_lockall(PyTdbObject *self)
+{
+ int ret = tdb_lockall(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_unlockall(PyTdbObject *self)
+{
+ int ret = tdb_unlockall(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_lockall_read(PyTdbObject *self)
+{
+ int ret = tdb_lockall_read(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_unlockall_read(PyTdbObject *self)
+{
+ int ret = tdb_unlockall_read(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_close(PyTdbObject *self)
+{
+ int ret = tdb_close(self->ctx);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_get(PyTdbObject *self, PyObject *args)
+{
+ TDB_DATA key;
+ PyObject *py_key;
+ if (!PyArg_ParseTuple(args, "O", &py_key))
+ return NULL;
+
+ key = PyString_AsTDB_DATA(py_key);
+
+ return PyString_FromTDB_DATA(tdb_fetch(self->ctx, key));
+}
+
+static PyObject *obj_append(PyTdbObject *self, PyObject *args)
+{
+ TDB_DATA key, data;
+ PyObject *py_key, *py_data;
+ int ret;
+ if (!PyArg_ParseTuple(args, "OO", &py_key, &py_data))
+ return NULL;
+
+ key = PyString_AsTDB_DATA(py_key);
+ data = PyString_AsTDB_DATA(py_data);
+
+ ret = tdb_append(self->ctx, key, data);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_firstkey(PyTdbObject *self)
+{
+ return PyString_FromTDB_DATA(tdb_firstkey(self->ctx));
+}
+
+static PyObject *obj_nextkey(PyTdbObject *self, PyObject *args)
+{
+ TDB_DATA key;
+ PyObject *py_key;
+ if (!PyArg_ParseTuple(args, "O", &py_key))
+ return NULL;
+
+ key = PyString_AsTDB_DATA(py_key);
+
+ return PyString_FromTDB_DATA(tdb_nextkey(self->ctx, key));
+}
+
+static PyObject *obj_delete(PyTdbObject *self, PyObject *args)
+{
+ TDB_DATA key;
+ PyObject *py_key;
+ int ret;
+ if (!PyArg_ParseTuple(args, "O", &py_key))
+ return NULL;
+
+ key = PyString_AsTDB_DATA(py_key);
+ ret = tdb_delete(self->ctx, key);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyObject *obj_has_key(PyTdbObject *self, PyObject *args)
+{
+ TDB_DATA key;
+ int ret;
+ PyObject *py_key;
+ if (!PyArg_ParseTuple(args, "O", &py_key))
+ return NULL;
+
+ key = PyString_AsTDB_DATA(py_key);
+ ret = tdb_exists(self->ctx, key);
+ if (ret != TDB_ERR_NOEXIST) {
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ }
+
+ return (ret == TDB_ERR_NOEXIST)?Py_False:Py_True;
+}
+
+static PyObject *obj_store(PyTdbObject *self, PyObject *args)
+{
+ TDB_DATA key, value;
+ int ret;
+ int flag = TDB_REPLACE;
+ PyObject *py_key, *py_value;
+
+ if (!PyArg_ParseTuple(args, "OO|i", &py_key, &py_value, &flag))
+ return NULL;
+
+ key = PyString_AsTDB_DATA(py_key);
+ value = PyString_AsTDB_DATA(py_value);
+
+ ret = tdb_store(self->ctx, key, value, flag);
+ PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
+ return Py_None;
+}
+
+static PyMethodDef tdb_object_methods[] = {
+ { "transaction_cancel", (PyCFunction)obj_transaction_cancel, METH_NOARGS,
+ "S.transaction_cancel() -> None\n"
+ "Cancel the currently active transaction." },
+ { "transaction_commit", (PyCFunction)obj_transaction_commit, METH_NOARGS,
+ "S.transaction_commit() -> None\n"
+ "Commit the currently active transaction." },
+ { "transaction_recover", (PyCFunction)obj_transaction_recover, METH_NOARGS,
+ "S.transaction_recover() -> None\n"
+ "Recover the currently active transaction." },
+ { "transaction_start", (PyCFunction)obj_transaction_start, METH_NOARGS,
+ "S.transaction_start() -> None\n"
+ "Start a new transaction." },
+ { "reopen", (PyCFunction)obj_reopen, METH_NOARGS, "Reopen this file." },
+ { "lock_all", (PyCFunction)obj_lockall, METH_NOARGS, NULL },
+ { "unlock_all", (PyCFunction)obj_unlockall, METH_NOARGS, NULL },
+ { "read_lock_all", (PyCFunction)obj_lockall_read, METH_NOARGS, NULL },
+ { "read_unlock_all", (PyCFunction)obj_unlockall_read, METH_NOARGS, NULL },
+ { "close", (PyCFunction)obj_close, METH_NOARGS, NULL },
+ { "get", (PyCFunction)obj_get, METH_VARARGS, "S.fetch(key) -> value\n"
+ "Fetch a value." },
+ { "append", (PyCFunction)obj_append, METH_VARARGS, "S.append(key, value) -> None\n"
+ "Append data to an existing key." },
+ { "firstkey", (PyCFunction)obj_firstkey, METH_NOARGS, "S.firstkey() -> data\n"
+ "Return the first key in this database." },
+ { "nextkey", (PyCFunction)obj_nextkey, METH_NOARGS, "S.nextkey(key) -> data\n"
+ "Return the next key in this database." },
+ { "delete", (PyCFunction)obj_delete, METH_VARARGS, "S.delete(key) -> None\n"
+ "Delete an entry." },
+ { "has_key", (PyCFunction)obj_has_key, METH_VARARGS, "S.has_key(key) -> None\n"
+ "Check whether key exists in this database." },
+ { "store", (PyCFunction)obj_store, METH_VARARGS, "S.store(key, data, flag=REPLACE) -> None"
+ "Store data." },
+ { NULL }
+};
+
+static PyObject *obj_get_hash_size(PyTdbObject *self, void *closure)
+{
+ return PyInt_FromLong(tdb_hash_size(self->ctx));
+}
+
+static int obj_set_max_dead(PyTdbObject *self, PyObject *max_dead, void *closure)
+{
+ if (!PyInt_Check(max_dead))
+ return -1;
+ tdb_set_max_dead(self->ctx, PyInt_AsLong(max_dead));
+ return 0;
+}
+
+static PyObject *obj_get_map_size(PyTdbObject *self, void *closure)
+{
+ return PyInt_FromLong(tdb_map_size(self->ctx));
+}
+
+static PyObject *obj_get_flags(PyTdbObject *self, void *closure)
+{
+ return PyInt_FromLong(tdb_get_flags(self->ctx));
+}
+
+static PyObject *obj_get_filename(PyTdbObject *self, void *closure)
+{
+ return PyString_FromString(tdb_name(self->ctx));
+}
+
+static PyGetSetDef tdb_object_getsetters[] = {
+ { (char *)"hash_size", (getter)obj_get_hash_size, NULL, NULL },
+ { (char *)"map_size", (getter)obj_get_map_size, NULL, NULL },
+ { (char *)"flags", (getter)obj_get_flags, NULL, NULL },
+ { (char *)"max_dead", NULL, (setter)obj_set_max_dead, NULL },
+ { (char *)"filename", (getter)obj_get_filename, NULL, (char *)"The filename of this TDB file."},
+ { NULL }
+};
+
+static PyObject *tdb_object_repr(PyTdbObject *self)
+{
+ return PyString_FromFormat("Tdb('%s')", tdb_name(self->ctx));
+}
+
+static void tdb_object_dealloc(PyTdbObject *self)
+{
+ tdb_close(self->ctx);
+ PyObject_Del(self);
+}
+
+static PyObject *obj_getitem(PyTdbObject *self, PyObject *key)
+{
+ TDB_DATA tkey, val;
+ if (!PyString_Check(key)) {
+ PyErr_SetString(PyExc_TypeError, "Expected string as key");
+ return NULL;
+ }
+
+ tkey.dptr = (unsigned char *)PyString_AsString(key);
+ tkey.dsize = PyString_Size(key);
+
+ val = tdb_fetch(self->ctx, tkey);
+ if (val.dptr == NULL) {
+ PyErr_SetString(PyExc_KeyError, "No such TDB entry");
+ return NULL;
+ } else {
+ return PyString_FromTDB_DATA(val);
+ }
+}
+
+static int obj_setitem(PyTdbObject *self, PyObject *key, PyObject *value)
+{
+ TDB_DATA tkey, tval;
+ int ret;
+ if (!PyString_Check(key)) {
+ PyErr_SetString(PyExc_TypeError, "Expected string as key");
+ return -1;
+ }
+
+ tkey = PyString_AsTDB_DATA(key);
+
+ if (value == NULL) {
+ ret = tdb_delete(self->ctx, tkey);
+ } else {
+ if (!PyString_Check(value)) {
+ PyErr_SetString(PyExc_TypeError, "Expected string as value");
+ return -1;
+ }
+
+ tval = PyString_AsTDB_DATA(value);
+
+ ret = tdb_store(self->ctx, tkey, tval, TDB_REPLACE);
+ }
+
+ if (ret != 0) {
+ PyErr_SetTDBError(self->ctx);
+ return -1;
+ }
+
+ return ret;
+}
+
+static PyMappingMethods tdb_object_mapping = {
+ .mp_subscript = (binaryfunc)obj_getitem,
+ .mp_ass_subscript = (objobjargproc)obj_setitem,
+};
+
+PyTypeObject PyTdb = {
+ .tp_name = "Tdb",
+ .tp_basicsize = sizeof(PyTdbObject),
+ .tp_methods = tdb_object_methods,
+ .tp_getset = tdb_object_getsetters,
+ .tp_new = py_tdb_open,
+ .tp_doc = "A TDB file",
+ .tp_repr = (reprfunc)tdb_object_repr,
+ .tp_dealloc = (destructor)tdb_object_dealloc,
+ .tp_as_mapping = &tdb_object_mapping,
+ .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
+};
+
+static PyMethodDef tdb_methods[] = {
+ { "open", (PyCFunction)py_tdb_open, METH_VARARGS|METH_KEYWORDS, "open(name, hash_size=0, tdb_flags=TDB_DEFAULT, flags=O_RDWR, mode=0600)\n"
+ "Open a TDB file." },
+ { NULL }
+};
+
+void inittdb(void)
+{
+ PyObject *m;
+
+ if (PyType_Ready(&PyTdb) < 0)
+ return;
+
+ m = Py_InitModule3("tdb", tdb_methods, "TDB is a simple key-value database similar to GDBM that supports multiple writers.");
+ if (m == NULL)
+ return;
+
+ PyModule_AddObject(m, "REPLACE", PyInt_FromLong(TDB_REPLACE));
+ PyModule_AddObject(m, "INSERT", PyInt_FromLong(TDB_INSERT));
+ PyModule_AddObject(m, "MODIFY", PyInt_FromLong(TDB_MODIFY));
+
+ PyModule_AddObject(m, "DEFAULT", PyInt_FromLong(TDB_DEFAULT));
+ PyModule_AddObject(m, "CLEAR_IF_FIRST", PyInt_FromLong(TDB_CLEAR_IF_FIRST));
+ PyModule_AddObject(m, "INTERNAL", PyInt_FromLong(TDB_INTERNAL));
+ PyModule_AddObject(m, "NOLOCK", PyInt_FromLong(TDB_NOLOCK));
+ PyModule_AddObject(m, "NOMMAP", PyInt_FromLong(TDB_NOMMAP));
+ PyModule_AddObject(m, "CONVERT", PyInt_FromLong(TDB_CONVERT));
+ PyModule_AddObject(m, "BIGENDIAN", PyInt_FromLong(TDB_BIGENDIAN));
+ PyModule_AddObject(m, "__docformat__", PyString_FromString("restructuredText"));
+
+ Py_INCREF(&PyTdb);
+ PyModule_AddObject(m, "Tdb", (PyObject *)&PyTdb);
+}
--- /dev/null
+#!/usr/bin/python
+# Some simple tests for the Python bindings for TDB
+# Note that this tests the interface of the Python bindings
+# It does not test tdb itself.
+#
+# Copyright (C) 2007-2008 Jelmer Vernooij <jelmer@samba.org>
+# Published under the GNU LGPLv3 or later
+
+import tdb
+from unittest import TestCase
+import os, tempfile
+
+
+class OpenTdbTests(TestCase):
+ def test_nonexistant_read(self):
+ self.assertRaises(IOError, tdb.Tdb, "/some/nonexistant/file", 0, tdb.DEFAULT, os.O_RDWR)
+
+
+class SimpleTdbTests(TestCase):
+ def setUp(self):
+ super(SimpleTdbTests, self).setUp()
+ self.tdb = tdb.Tdb(tempfile.mkstemp()[1], 0, tdb.DEFAULT, os.O_CREAT|os.O_RDWR)
+ self.assertNotEqual(None, self.tdb)
+
+ def tearDown(self):
+ del self.tdb
+
+ def test_repr(self):
+ self.assertTrue(repr(self.tdb).startswith("Tdb('"))
+
+ def test_lockall(self):
+ self.tdb.lock_all()
+
+ def test_max_dead(self):
+ self.tdb.max_dead = 20
+
+ def test_unlockall(self):
+ self.tdb.lock_all()
+ self.tdb.unlock_all()
+
+ def test_lockall_read(self):
+ self.tdb.read_lock_all()
+ self.tdb.read_unlock_all()
+
+ def test_reopen(self):
+ self.tdb.reopen()
+
+ def test_store(self):
+ self.tdb.store("bar", "bla")
+ self.assertEquals("bla", self.tdb.get("bar"))
+
+ def test_getitem(self):
+ self.tdb["bar"] = "foo"
+ self.tdb.reopen()
+ self.assertEquals("foo", self.tdb["bar"])
+
+ def test_delete(self):
+ self.tdb["bar"] = "foo"
+ del self.tdb["bar"]
+ self.assertRaises(KeyError, lambda: self.tdb["bar"])
+
+ def test_contains(self):
+ self.tdb["bla"] = "bloe"
+ self.assertTrue("bla" in self.tdb)
+
+ def test_keyerror(self):
+ self.assertRaises(KeyError, lambda: self.tdb["bla"])
+
+ def test_hash_size(self):
+ self.tdb.hash_size
+
+ def test_map_size(self):
+ self.tdb.map_size
+
+ def test_name(self):
+ self.tdb.filename
+
+ def test_iterator(self):
+ self.tdb["bla"] = "1"
+ self.tdb["brainslug"] = "2"
+ self.assertEquals(["bla", "brainslug"], list(self.tdb))
+
+ def test_items(self):
+ self.tdb["bla"] = "1"
+ self.tdb["brainslug"] = "2"
+ self.assertEquals([("bla", "1"), ("brainslug", "2")], self.tdb.items())
+
+ def test_iteritems(self):
+ self.tdb["bloe"] = "2"
+ self.tdb["bla"] = "25"
+ i = self.tdb.iteritems()
+ self.assertEquals(set([("bla", "25"), ("bloe", "2")]),
+ set([i.next(), i.next()]))
+
+ def test_transaction_cancel(self):
+ self.tdb["bloe"] = "2"
+ self.tdb.transaction_start()
+ self.tdb["bloe"] = "1"
+ self.tdb.transaction_cancel()
+ self.assertEquals("2", self.tdb["bloe"])
+
+ def test_transaction_commit(self):
+ self.tdb["bloe"] = "2"
+ self.tdb.transaction_start()
+ self.tdb["bloe"] = "1"
+ self.tdb.transaction_commit()
+ self.assertEquals("1", self.tdb["bloe"])
+
+ def test_iterator(self):
+ self.tdb["bloe"] = "2"
+ self.tdb["bla"] = "hoi"
+ i = iter(self.tdb)
+ self.assertEquals(set(["bloe", "bla"]), set([i.next(), i.next()]))
+
+ def test_keys(self):
+ self.tdb["bloe"] = "2"
+ self.tdb["bla"] = "25"
+ self.assertEquals(["bla", "bloe"], self.tdb.keys())
+
+ def test_iterkeys(self):
+ self.tdb["bloe"] = "2"
+ self.tdb["bla"] = "25"
+ i = self.tdb.iterkeys()
+ self.assertEquals(set(["bloe", "bla"]), set([i.next(), i.next()]))
+
+ def test_values(self):
+ self.tdb["bloe"] = "2"
+ self.tdb["bla"] = "25"
+ self.assertEquals(["25", "2"], self.tdb.values())
+
+ def test_itervalues(self):
+ self.tdb["bloe"] = "2"
+ self.tdb["bla"] = "25"
+ i = self.tdb.itervalues()
+ self.assertEquals(set(["25", "2"]), set([i.next(), i.next()]))
+
+ def test_clear(self):
+ self.tdb["bloe"] = "2"
+ self.tdb["bla"] = "25"
+ self.assertEquals(2, len(self.tdb))
+ self.tdb.clear()
+ self.assertEquals(0, len(self.tdb))
+
+ def test_len(self):
+ self.assertEquals(0, len(self.tdb))
+ self.tdb["entry"] = "value"
+ self.assertEquals(1, len(self.tdb))
+
+
+if __name__ == '__main__':
+ import unittest
+ unittest.TestProgram()
git.samba.org / ctdb.git / commitdiff