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/*
* Copyright (c) 2016, NORDUnet A/S.
* See LICENSE for licensing information.
*/
#include <Python.h>
#include "permdb.h"
typedef struct permdb_object_py {
PyObject_HEAD
struct permdb_object *permdb;
} permdb_object_py;
static void
permdb_dealloc(permdb_object_py *state)
{
permdb_free(state->permdb);
}
PyTypeObject permdb_type = {
PyObject_HEAD_INIT(NULL)
0, /*ob_size*/
"permdb.permdb", /*tp_name*/
sizeof(permdb_object_py), /*tp_basicsize*/
0, /*tp_itemsize*/
(destructor)permdb_dealloc,/*tp_dealloc*/
0, /*tp_print*/
0, /*tp_getattr*/
0, /*tp_setattr*/
0, /*tp_compare*/
0, /*tp_repr*/
0, /*tp_as_number*/
0, /*tp_as_sequence*/
0, /*tp_as_mapping*/
0, /*tp_hash */
0, /*tp_call*/
0, /*tp_str*/
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT, /*tp_flags*/
"PermDB state", /*tp_doc*/
};
permdb_object_py *
permdb_alloc_py(const char *dbpath, int write_enable)
{
struct permdb_object *permdb;
permdb = permdb_alloc(dbpath, write_enable);
if (permdb == NULL) {
PyErr_SetString(PyExc_RuntimeError, "Cannot allocate permdb object");
return NULL;
}
permdb_object_py *state = PyObject_New(permdb_object_py, &permdb_type);
state->permdb = permdb;
return state;
}
static PyObject *
data_pread(PyObject *self, PyObject *args)
{
unsigned long long offset;
unsigned int length;
permdb_object_py *state;
if (!PyArg_ParseTuple(args, "O!KI", &permdb_type, &state, &offset, &length)) {
return NULL;
}
unsigned char *result = read_internal_data(state->permdb, offset, length);
if (result == NULL) {
PyErr_SetString(PyExc_RuntimeError, get_permdb_error(state->permdb));
return NULL;
}
PyObject* resultObj = PyString_FromStringAndSize((char *)result, length);
free(result);
return resultObj;
}
static PyObject *
permdb_alloc_wrapper(PyObject *self, PyObject *args)
{
const char *dbpath = NULL;
int write_enable = 1;
if (!PyArg_ParseTuple(args, "s|i", &dbpath, &write_enable)) {
return NULL;
}
return (PyObject*)permdb_alloc_py(dbpath, write_enable);
}
static PyObject *
datasize_wrapper(PyObject *self, PyObject *args)
{
permdb_object_py *state;
if (!PyArg_ParseTuple(args, "O!", &permdb_type, &state)) {
return NULL;
}
return PyInt_FromLong(datasize(state->permdb));
}
static PyObject *
addvalue_wrapper(PyObject *self, PyObject *args)
{
permdb_object_py *state;
const char *key;
unsigned int keylength;
const char *data;
unsigned int datalength;
if (!PyArg_ParseTuple(args, "O!s#s#", &permdb_type, &state, &key,
&keylength, &data, &datalength)) {
return NULL;
}
int result = addvalue(state->permdb, (unsigned char *) key, keylength,
(unsigned char *) data, datalength, 0);
if (result < 0) {
PyErr_SetString(PyExc_RuntimeError, get_permdb_error(state->permdb));
return NULL;
} else if (result == 0) {
Py_INCREF(Py_False);
return Py_False;
} else {
Py_INCREF(Py_True);
return Py_True;
}
}
static PyObject *
getvalue_wrapper(PyObject *self, PyObject *args)
{
permdb_object_py *state;
const char *key;
int keylen;
if (!PyArg_ParseTuple(args, "O!s#", &permdb_type, &state, &key,
&keylen)) {
return NULL;
}
size_t datalen;
unsigned char *result =
getvalue(state->permdb, (unsigned char *) key, keylen, &datalen);
if (result == NULL) {
Py_INCREF(Py_None);
return Py_None;
}
PyObject* resultObj =
PyString_FromStringAndSize((char *) result, datalen);
free(result);
return resultObj;
}
static PyObject *
clear_nodecache(PyObject *self, PyObject *args)
{
permdb_object_py *state;
if (!PyArg_ParseTuple(args, "O!", &permdb_type, &state)) {
return NULL;
}
delete_all_nodes_in_cache(state->permdb);
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
committree_wrapper(PyObject *self, PyObject *args)
{
permdb_object_py *state;
if (!PyArg_ParseTuple(args, "O!", &permdb_type, &state)) {
return NULL;
}
int result = committree(state->permdb);
if (result < 0) {
PyErr_SetString(PyExc_RuntimeError, get_permdb_error(state->permdb));
return NULL;
} else {
Py_INCREF(Py_None);
return Py_None;
}
}
static PyMethodDef UtilMethods[] = {
{"data_pread", data_pread, METH_VARARGS},
{"alloc", permdb_alloc_wrapper, METH_VARARGS},
{"datasize", datasize_wrapper, METH_VARARGS},
{"addvalue", addvalue_wrapper, METH_VARARGS},
{"getvalue", getvalue_wrapper, METH_VARARGS},
{"committree", committree_wrapper, METH_VARARGS},
{"clear_nodecache", clear_nodecache, METH_VARARGS},
{NULL, NULL}
};
void
initpermdb()
{
(void) Py_InitModule("permdb", UtilMethods);
}
/* Local Variables: */
/* c-file-style: "BSD" */
/* End: */
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