/*
Unix SMB/CIFS implementation.
Python 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>
#include "replace.h"
#include "system/filesys.h"
/* Include tdb headers */
#include <tdb.h>
#if PY_MAJOR_VERSION >= 3
#define PyInt_FromLong PyLong_FromLong
#define PyInt_Check PyLong_Check
#define PyInt_AsLong PyLong_AsLong
#define Py_TPFLAGS_HAVE_ITER 0
#endif
/* discard signature of 'func' in favour of 'target_sig' */
#define PY_DISCARD_FUNC_SIG(target_sig, func) (target_sig)(void(*)(void))func
typedef struct {
PyObject_HEAD
TDB_CONTEXT *ctx;
bool closed;
} PyTdbObject;
static 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 PyBytes_AsTDB_DATA(PyObject *data)
{
TDB_DATA ret;
ret.dptr = (unsigned char *)PyBytes_AsString(data);
ret.dsize = PyBytes_Size(data);
return ret;
}
static PyObject *PyBytes_FromTDB_DATA(TDB_DATA data)
{
if (data.dptr == NULL && data.dsize == 0) {
Py_RETURN_NONE;
} else {
PyObject *ret = PyBytes_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; \
}
#define PyErr_TDB_RAISE_IF_CLOSED(self) \
if (self->closed) { \
PyErr_SetObject(PyExc_RuntimeError, \
Py_BuildValue("(i,s)", TDB_ERR_IO, "Database is already closed")); \
return NULL; \
}
#define PyErr_TDB_RAISE_RETURN_MINUS_1_IF_CLOSED(self) \
if (self->closed) { \
PyErr_SetObject(PyExc_RuntimeError, \
Py_BuildValue("(i,s)", TDB_ERR_IO, "Database is already closed")); \
return -1; \
}
static PyObject *py_tdb_open(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
char *name = NULL;
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 };
char **kwnames = discard_const_p(char *, _kwnames);
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|siiii", kwnames, &name, &hash_size, &tdb_flags, &flags, &mode))
return NULL;
if (name == NULL) {
tdb_flags |= TDB_INTERNAL;
}
ctx = tdb_open(name, hash_size, tdb_flags, flags, mode);
if (ctx == NULL) {
PyErr_SetFromErrno(PyExc_IOError);
return NULL;
}
ret = PyObject_New(PyTdbObject, &PyTdb);
if (!ret) {
tdb_close(ctx);
return NULL;
}
ret->ctx = ctx;
ret->closed = false;
return (PyObject *)ret;
}
static PyObject *obj_transaction_cancel(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_transaction_cancel(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_transaction_commit(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_transaction_commit(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_transaction_prepare_commit(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_transaction_prepare_commit(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_transaction_start(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_transaction_start(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_reopen(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_reopen(self->ctx);
if (ret != 0) {
self->closed = true;
PyErr_SetObject(PyExc_RuntimeError,
Py_BuildValue("(i,s)",
TDB_ERR_IO,
"Failed to reopen database"));
return NULL;
}
Py_RETURN_NONE;
}
static PyObject *obj_lockall(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_lockall(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_unlockall(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_unlockall(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_lockall_read(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_lockall_read(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_unlockall_read(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
int ret = tdb_unlockall_read(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_close(PyTdbObject *self, PyObject *Py_UNUSED(ignored))
{
int ret;
if (self->closed)
Py_RETURN_NONE;
ret = tdb_close(self->ctx);
self->closed = true;
if (ret != 0) {
PyErr_SetObject(PyExc_RuntimeError,
Py_BuildValue("(i,s)",
TDB_ERR_IO,
"Failed to close database"));
return NULL;
}
Py_RETURN_NONE;
}
static PyObject *obj_get(PyTdbObject *self, PyObject *args)
{
TDB_DATA key;
PyObject *py_key;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyArg_ParseTuple(args, "O", &py_key))
return NULL;
key = PyBytes_AsTDB_DATA(py_key);
if (!key.dptr)
return NULL;
return PyBytes_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;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyArg_ParseTuple(args, "OO", &py_key, &py_data))
return NULL;
key = PyBytes_AsTDB_DATA(py_key);
if (!key.dptr)
return NULL;
data = PyBytes_AsTDB_DATA(py_data);
if (!data.dptr)
return NULL;
ret = tdb_append(self->ctx, key, data);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_firstkey(PyTdbObject *self, PyObject *Py_UNUSED(ignored))
{
PyErr_TDB_RAISE_IF_CLOSED(self);
return PyBytes_FromTDB_DATA(tdb_firstkey(self->ctx));
}
static PyObject *obj_nextkey(PyTdbObject *self, PyObject *args)
{
TDB_DATA key;
PyObject *py_key;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyArg_ParseTuple(args, "O", &py_key))
return NULL;
key = PyBytes_AsTDB_DATA(py_key);
if (!key.dptr)
return NULL;
return PyBytes_FromTDB_DATA(tdb_nextkey(self->ctx, key));
}
static PyObject *obj_delete(PyTdbObject *self, PyObject *args)
{
TDB_DATA key;
PyObject *py_key;
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyArg_ParseTuple(args, "O", &py_key))
return NULL;
key = PyBytes_AsTDB_DATA(py_key);
if (!key.dptr)
return NULL;
ret = tdb_delete(self->ctx, key);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static int obj_contains(PyTdbObject *self, PyObject *py_key)
{
TDB_DATA key;
int ret;
PyErr_TDB_RAISE_RETURN_MINUS_1_IF_CLOSED(self);
key = PyBytes_AsTDB_DATA(py_key);
if (!key.dptr) {
PyErr_BadArgument();
return -1;
}
ret = tdb_exists(self->ctx, key);
if (ret)
return 1;
return 0;
}
#if PY_MAJOR_VERSION < 3
static PyObject *obj_has_key(PyTdbObject *self, PyObject *args)
{
int ret;
PyObject *py_key;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyArg_ParseTuple(args, "O", &py_key))
return NULL;
ret = obj_contains(self, py_key);
if (ret == -1)
return NULL;
if (ret)
Py_RETURN_TRUE;
Py_RETURN_FALSE;
}
#endif
static PyObject *obj_store(PyTdbObject *self, PyObject *args)
{
TDB_DATA key, value;
int ret;
int flag = TDB_REPLACE;
PyObject *py_key, *py_value;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyArg_ParseTuple(args, "OO|i", &py_key, &py_value, &flag))
return NULL;
key = PyBytes_AsTDB_DATA(py_key);
if (!key.dptr)
return NULL;
value = PyBytes_AsTDB_DATA(py_value);
if (!value.dptr)
return NULL;
ret = tdb_store(self->ctx, key, value, flag);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_add_flags(PyTdbObject *self, PyObject *args)
{
unsigned flags;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyArg_ParseTuple(args, "I", &flags))
return NULL;
tdb_add_flags(self->ctx, flags);
Py_RETURN_NONE;
}
static PyObject *obj_remove_flags(PyTdbObject *self, PyObject *args)
{
unsigned flags;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyArg_ParseTuple(args, "I", &flags))
return NULL;
tdb_remove_flags(self->ctx, flags);
Py_RETURN_NONE;
}
typedef struct {
PyObject_HEAD
TDB_DATA current;
PyTdbObject *iteratee;
} PyTdbIteratorObject;
static PyObject *tdb_iter_next(PyTdbIteratorObject *self)
{
TDB_DATA current;
PyObject *ret;
if (self->current.dptr == NULL && self->current.dsize == 0)
return NULL;
current = self->current;
self->current = tdb_nextkey(self->iteratee->ctx, self->current);
ret = PyBytes_FromTDB_DATA(current);
return ret;
}
static void tdb_iter_dealloc(PyTdbIteratorObject *self)
{
Py_DECREF(self->iteratee);
PyObject_Del(self);
}
PyTypeObject PyTdbIterator = {
.tp_name = "Iterator",
.tp_basicsize = sizeof(PyTdbIteratorObject),
.tp_iternext = (iternextfunc)tdb_iter_next,
.tp_dealloc = (destructor)tdb_iter_dealloc,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_iter = PyObject_SelfIter,
};
static PyObject *tdb_object_iter(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
PyTdbIteratorObject *ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = PyObject_New(PyTdbIteratorObject, &PyTdbIterator);
if (!ret)
return NULL;
ret->current = tdb_firstkey(self->ctx);
ret->iteratee = self;
Py_INCREF(self);
return (PyObject *)ret;
}
static PyObject *obj_clear(PyTdbObject *self, PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_wipe_all(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_repack(PyTdbObject *self, PyObject *Py_UNUSED(ignored))
{
int ret;
PyErr_TDB_RAISE_IF_CLOSED(self);
ret = tdb_repack(self->ctx);
PyErr_TDB_ERROR_IS_ERR_RAISE(ret, self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_enable_seqnum(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
PyErr_TDB_RAISE_IF_CLOSED(self);
tdb_enable_seqnum(self->ctx);
Py_RETURN_NONE;
}
static PyObject *obj_increment_seqnum_nonblock(PyTdbObject *self,
PyObject *Py_UNUSED(ignored))
{
PyErr_TDB_RAISE_IF_CLOSED(self);
tdb_increment_seqnum_nonblock(self->ctx);
Py_RETURN_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_prepare_commit", (PyCFunction)obj_transaction_prepare_commit, METH_NOARGS,
"S.transaction_prepare_commit() -> None\n"
"Prepare to commit 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.get(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_VARARGS, "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." },
#if PY_MAJOR_VERSION < 3
{ "has_key", (PyCFunction)obj_has_key, METH_VARARGS, "S.has_key(key) -> None\n"
"Check whether key exists in this database." },
#endif
{ "store", (PyCFunction)obj_store, METH_VARARGS, "S.store(key, data, flag=REPLACE) -> None"
"Store data." },
{ "add_flags", (PyCFunction)obj_add_flags, METH_VARARGS, "S.add_flags(flags) -> None" },
{ "remove_flags", (PyCFunction)obj_remove_flags, METH_VARARGS, "S.remove_flags(flags) -> None" },
#if PY_MAJOR_VERSION >= 3
{ "keys", (PyCFunction)tdb_object_iter, METH_NOARGS, "S.iterkeys() -> iterator" },
#else
{ "iterkeys", (PyCFunction)tdb_object_iter, METH_NOARGS, "S.iterkeys() -> iterator" },
#endif
{ "clear", (PyCFunction)obj_clear, METH_NOARGS, "S.clear() -> None\n"
"Wipe the entire database." },
{ "repack", (PyCFunction)obj_repack, METH_NOARGS, "S.repack() -> None\n"
"Repack the entire database." },
{ "enable_seqnum", (PyCFunction)obj_enable_seqnum, METH_NOARGS,
"S.enable_seqnum() -> None" },
{ "increment_seqnum_nonblock", (PyCFunction)obj_increment_seqnum_nonblock, METH_NOARGS,
"S.increment_seqnum_nonblock() -> None" },
{ NULL }
};
static PyObject *obj_get_hash_size(PyTdbObject *self, void *closure)
{
PyErr_TDB_RAISE_IF_CLOSED(self);
return PyInt_FromLong(tdb_hash_size(self->ctx));
}
static int obj_set_max_dead(PyTdbObject *self, PyObject *max_dead, void *closure)
{
PyErr_TDB_RAISE_RETURN_MINUS_1_IF_CLOSED(self);
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)
{
PyErr_TDB_RAISE_IF_CLOSED(self);
return PyInt_FromLong(tdb_map_size(self->ctx));
}
static PyObject *obj_get_freelist_size(PyTdbObject *self, void *closure)
{
PyErr_TDB_RAISE_IF_CLOSED(self);
return PyInt_FromLong(tdb_freelist_size(self->ctx));
}
static PyObject *obj_get_flags(PyTdbObject *self, void *closure)
{
PyErr_TDB_RAISE_IF_CLOSED(self);
return PyInt_FromLong(tdb_get_flags(self->ctx));
}
static PyObject *obj_get_filename(PyTdbObject *self, void *closure)
{
PyErr_TDB_RAISE_IF_CLOSED(self);
return PyBytes_FromString(tdb_name(self->ctx));
}
static PyObject *obj_get_seqnum(PyTdbObject *self, void *closure)
{
PyErr_TDB_RAISE_IF_CLOSED(self);
return PyInt_FromLong(tdb_get_seqnum(self->ctx));
}
static PyObject *obj_get_text(PyTdbObject *self, void *closure)
{
PyObject *mod, *cls, *inst;
mod = PyImport_ImportModule("_tdb_text");
if (mod == NULL)
return NULL;
cls = PyObject_GetAttrString(mod, "TdbTextWrapper");
if (cls == NULL) {
Py_DECREF(mod);
return NULL;
}
inst = PyObject_CallFunction(cls, discard_const_p(char, "O"), self);
Py_DECREF(mod);
Py_DECREF(cls);
return inst;
}
static PyGetSetDef tdb_object_getsetters[] = {
{
.name = discard_const_p(char, "hash_size"),
.get = (getter)obj_get_hash_size,
},
{
.name = discard_const_p(char, "map_size"),
.get = (getter)obj_get_map_size,
},
{
.name = discard_const_p(char, "freelist_size"),
.get = (getter)obj_get_freelist_size,
},
{
.name = discard_const_p(char, "flags"),
.get = (getter)obj_get_flags,
},
{
.name = discard_const_p(char, "max_dead"),
.set = (setter)obj_set_max_dead,
},
{
.name = discard_const_p(char, "filename"),
.get = (getter)obj_get_filename,
.doc = discard_const_p(char, "The filename of this TDB file."),
},
{
.name = discard_const_p(char, "seqnum"),
.get = (getter)obj_get_seqnum,
},
{
.name = discard_const_p(char, "text"),
.get = (getter)obj_get_text,
},
{ .name = NULL }
};
static PyObject *tdb_object_repr(PyTdbObject *self)
{
PyErr_TDB_RAISE_IF_CLOSED(self);
if (tdb_get_flags(self->ctx) & TDB_INTERNAL) {
return PyUnicode_FromString("Tdb(<internal>)");
} else {
return PyUnicode_FromFormat("Tdb('%s')", tdb_name(self->ctx));
}
}
static void tdb_object_dealloc(PyTdbObject *self)
{
if (!self->closed)
tdb_close(self->ctx);
Py_TYPE(self)->tp_free(self);
}
static PyObject *obj_getitem(PyTdbObject *self, PyObject *key)
{
TDB_DATA tkey, val;
PyErr_TDB_RAISE_IF_CLOSED(self);
if (!PyBytes_Check(key)) {
PyErr_SetString(PyExc_TypeError, "Expected bytestring as key");
return NULL;
}
tkey.dptr = (unsigned char *)PyBytes_AsString(key);
tkey.dsize = PyBytes_Size(key);
val = tdb_fetch(self->ctx, tkey);
if (val.dptr == NULL) {
/*
* if the key doesn't exist raise KeyError(key) to be
* consistent with python dict
*/
PyErr_SetObject(PyExc_KeyError, key);
return NULL;
} else {
return PyBytes_FromTDB_DATA(val);
}
}
static int obj_setitem(PyTdbObject *self, PyObject *key, PyObject *value)
{
TDB_DATA tkey, tval;
int ret;
PyErr_TDB_RAISE_RETURN_MINUS_1_IF_CLOSED(self);
if (!PyBytes_Check(key)) {
PyErr_SetString(PyExc_TypeError, "Expected bytestring as key");
return -1;
}
tkey = PyBytes_AsTDB_DATA(key);
if (value == NULL) {
ret = tdb_delete(self->ctx, tkey);
} else {
if (!PyBytes_Check(value)) {
PyErr_SetString(PyExc_TypeError, "Expected string as value");
return -1;
}
tval = PyBytes_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,
};
static PySequenceMethods tdb_object_seq = {
.sq_contains = (objobjproc)obj_contains,
};
static PyTypeObject PyTdb = {
.tp_name = "tdb.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_as_sequence = &tdb_object_seq,
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_ITER,
.tp_iter = PY_DISCARD_FUNC_SIG(getiterfunc,tdb_object_iter),
};
static PyMethodDef tdb_methods[] = {
{
.ml_name = "open",
.ml_meth = PY_DISCARD_FUNC_SIG(PyCFunction, py_tdb_open),
.ml_flags = METH_VARARGS|METH_KEYWORDS,
.ml_doc = "open(name, hash_size=0, tdb_flags=TDB_DEFAULT, "
"flags=O_RDWR, mode=0600)\nOpen a TDB file."
},
{ .ml_name = NULL }
};
#define MODULE_DOC "simple key-value database that supports multiple writers."
#if PY_MAJOR_VERSION >= 3
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
.m_name = "tdb",
.m_doc = MODULE_DOC,
.m_size = -1,
.m_methods = tdb_methods,
};
#endif
PyObject* module_init(void);
PyObject* module_init(void)
{
PyObject *m;
if (PyType_Ready(&PyTdb) < 0)
return NULL;
if (PyType_Ready(&PyTdbIterator) < 0)
return NULL;
#if PY_MAJOR_VERSION >= 3
m = PyModule_Create(&moduledef);
#else
m = Py_InitModule3("tdb", tdb_methods, MODULE_DOC);
#endif
if (m == NULL)
return NULL;
PyModule_AddIntConstant(m, "REPLACE", TDB_REPLACE);
PyModule_AddIntConstant(m, "INSERT", TDB_INSERT);
PyModule_AddIntConstant(m, "MODIFY", TDB_MODIFY);
PyModule_AddIntConstant(m, "DEFAULT", TDB_DEFAULT);
PyModule_AddIntConstant(m, "CLEAR_IF_FIRST", TDB_CLEAR_IF_FIRST);
PyModule_AddIntConstant(m, "INTERNAL", TDB_INTERNAL);
PyModule_AddIntConstant(m, "NOLOCK", TDB_NOLOCK);
PyModule_AddIntConstant(m, "NOMMAP", TDB_NOMMAP);
PyModule_AddIntConstant(m, "CONVERT", TDB_CONVERT);
PyModule_AddIntConstant(m, "BIGENDIAN", TDB_BIGENDIAN);
PyModule_AddIntConstant(m, "NOSYNC", TDB_NOSYNC);
PyModule_AddIntConstant(m, "SEQNUM", TDB_SEQNUM);
PyModule_AddIntConstant(m, "VOLATILE", TDB_VOLATILE);
PyModule_AddIntConstant(m, "ALLOW_NESTING", TDB_ALLOW_NESTING);
PyModule_AddIntConstant(m, "DISALLOW_NESTING", TDB_DISALLOW_NESTING);
PyModule_AddIntConstant(m, "INCOMPATIBLE_HASH", TDB_INCOMPATIBLE_HASH);
PyModule_AddStringConstant(m, "__docformat__", "restructuredText");
PyModule_AddStringConstant(m, "__version__", PACKAGE_VERSION);
Py_INCREF(&PyTdb);
PyModule_AddObject(m, "Tdb", (PyObject *)&PyTdb);
Py_INCREF(&PyTdbIterator);
return m;
}
#if PY_MAJOR_VERSION >= 3
PyMODINIT_FUNC PyInit_tdb(void);
PyMODINIT_FUNC PyInit_tdb(void)
{
return module_init();
}
#else
void inittdb(void);
void inittdb(void)
{
module_init();
}
#endif