--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Modules/dbmmodule.c Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,414 @@
+
+/* DBM module using dictionary interface */
+
+
+#include "Python.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+/* Some Linux systems install gdbm/ndbm.h, but not ndbm.h. This supports
+ * whichever configure was able to locate.
+ */
+#if defined(HAVE_NDBM_H)
+#include <ndbm.h>
+#if defined(PYOS_OS2) && !defined(PYCC_GCC)
+static char *which_dbm = "ndbm";
+#else
+static char *which_dbm = "GNU gdbm"; /* EMX port of GDBM */
+#endif
+#elif defined(HAVE_GDBM_NDBM_H)
+#include <gdbm/ndbm.h>
+static char *which_dbm = "GNU gdbm";
+#elif defined(HAVE_BERKDB_H)
+#include <db.h>
+static char *which_dbm = "Berkeley DB";
+#else
+#error "No ndbm.h available!"
+#endif
+
+typedef struct {
+ PyObject_HEAD
+ int di_size; /* -1 means recompute */
+ DBM *di_dbm;
+} dbmobject;
+
+static PyTypeObject Dbmtype;
+
+#define is_dbmobject(v) (Py_TYPE(v) == &Dbmtype)
+#define check_dbmobject_open(v) if ((v)->di_dbm == NULL) \
+ { PyErr_SetString(DbmError, "DBM object has already been closed"); \
+ return NULL; }
+
+static PyObject *DbmError;
+
+static PyObject *
+newdbmobject(char *file, int flags, int mode)
+{
+ dbmobject *dp;
+
+ dp = PyObject_New(dbmobject, &Dbmtype);
+ if (dp == NULL)
+ return NULL;
+ dp->di_size = -1;
+ if ( (dp->di_dbm = dbm_open(file, flags, mode)) == 0 ) {
+ PyErr_SetFromErrno(DbmError);
+ Py_DECREF(dp);
+ return NULL;
+ }
+ return (PyObject *)dp;
+}
+
+/* Methods */
+
+static void
+dbm_dealloc(register dbmobject *dp)
+{
+ if ( dp->di_dbm )
+ dbm_close(dp->di_dbm);
+ PyObject_Del(dp);
+}
+
+static Py_ssize_t
+dbm_length(dbmobject *dp)
+{
+ if (dp->di_dbm == NULL) {
+ PyErr_SetString(DbmError, "DBM object has already been closed");
+ return -1;
+ }
+ if ( dp->di_size < 0 ) {
+ datum key;
+ int size;
+
+ size = 0;
+ for ( key=dbm_firstkey(dp->di_dbm); key.dptr;
+ key = dbm_nextkey(dp->di_dbm))
+ size++;
+ dp->di_size = size;
+ }
+ return dp->di_size;
+}
+
+static PyObject *
+dbm_subscript(dbmobject *dp, register PyObject *key)
+{
+ datum drec, krec;
+ int tmp_size;
+
+ if (!PyArg_Parse(key, "s#", &krec.dptr, &tmp_size) )
+ return NULL;
+
+ krec.dsize = tmp_size;
+ check_dbmobject_open(dp);
+ drec = dbm_fetch(dp->di_dbm, krec);
+ if ( drec.dptr == 0 ) {
+ PyErr_SetString(PyExc_KeyError,
+ PyString_AS_STRING((PyStringObject *)key));
+ return NULL;
+ }
+ if ( dbm_error(dp->di_dbm) ) {
+ dbm_clearerr(dp->di_dbm);
+ PyErr_SetString(DbmError, "");
+ return NULL;
+ }
+ return PyString_FromStringAndSize(drec.dptr, drec.dsize);
+}
+
+static int
+dbm_ass_sub(dbmobject *dp, PyObject *v, PyObject *w)
+{
+ datum krec, drec;
+ int tmp_size;
+
+ if ( !PyArg_Parse(v, "s#", &krec.dptr, &tmp_size) ) {
+ PyErr_SetString(PyExc_TypeError,
+ "dbm mappings have string indices only");
+ return -1;
+ }
+ krec.dsize = tmp_size;
+ if (dp->di_dbm == NULL) {
+ PyErr_SetString(DbmError, "DBM object has already been closed");
+ return -1;
+ }
+ dp->di_size = -1;
+ if (w == NULL) {
+ if ( dbm_delete(dp->di_dbm, krec) < 0 ) {
+ dbm_clearerr(dp->di_dbm);
+ PyErr_SetString(PyExc_KeyError,
+ PyString_AS_STRING((PyStringObject *)v));
+ return -1;
+ }
+ } else {
+ if ( !PyArg_Parse(w, "s#", &drec.dptr, &tmp_size) ) {
+ PyErr_SetString(PyExc_TypeError,
+ "dbm mappings have string elements only");
+ return -1;
+ }
+ drec.dsize = tmp_size;
+ if ( dbm_store(dp->di_dbm, krec, drec, DBM_REPLACE) < 0 ) {
+ dbm_clearerr(dp->di_dbm);
+ PyErr_SetString(DbmError,
+ "cannot add item to database");
+ return -1;
+ }
+ }
+ if ( dbm_error(dp->di_dbm) ) {
+ dbm_clearerr(dp->di_dbm);
+ PyErr_SetString(DbmError, "");
+ return -1;
+ }
+ return 0;
+}
+
+static int
+dbm_contains(register dbmobject *dp, PyObject *v)
+{
+ datum key, val;
+
+ if (PyString_AsStringAndSize(v, (char **)&key.dptr,
+ (Py_ssize_t *)&key.dsize)) {
+ return -1;
+ }
+
+ /* Expand check_dbmobject_open to return -1 */
+ if (dp->di_dbm == NULL) {
+ PyErr_SetString(DbmError, "DBM object has already been closed");
+ return -1;
+ }
+ val = dbm_fetch(dp->di_dbm, key);
+ return val.dptr != NULL;
+}
+
+static PySequenceMethods dbm_as_sequence = {
+ (lenfunc)dbm_length, /*_length*/
+ 0, /*sq_concat*/
+ 0, /*sq_repeat*/
+ 0, /*sq_item*/
+ 0, /*sq_slice*/
+ 0, /*sq_ass_item*/
+ 0, /*sq_ass_slice*/
+ (objobjproc)dbm_contains, /*sq_contains*/
+ 0, /*sq_inplace_concat*/
+ 0 /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods dbm_as_mapping = {
+ (lenfunc)dbm_length, /*mp_length*/
+ (binaryfunc)dbm_subscript, /*mp_subscript*/
+ (objobjargproc)dbm_ass_sub, /*mp_ass_subscript*/
+};
+
+static PyObject *
+dbm__close(register dbmobject *dp, PyObject *unused)
+{
+ if (dp->di_dbm)
+ dbm_close(dp->di_dbm);
+ dp->di_dbm = NULL;
+ Py_INCREF(Py_None);
+ return Py_None;
+}
+
+static PyObject *
+dbm_keys(register dbmobject *dp, PyObject *unused)
+{
+ register PyObject *v, *item;
+ datum key;
+ int err;
+
+ check_dbmobject_open(dp);
+ v = PyList_New(0);
+ if (v == NULL)
+ return NULL;
+ for (key = dbm_firstkey(dp->di_dbm); key.dptr;
+ key = dbm_nextkey(dp->di_dbm)) {
+ item = PyString_FromStringAndSize(key.dptr, key.dsize);
+ if (item == NULL) {
+ Py_DECREF(v);
+ return NULL;
+ }
+ err = PyList_Append(v, item);
+ Py_DECREF(item);
+ if (err != 0) {
+ Py_DECREF(v);
+ return NULL;
+ }
+ }
+ return v;
+}
+
+static PyObject *
+dbm_has_key(register dbmobject *dp, PyObject *args)
+{
+ char *tmp_ptr;
+ datum key, val;
+ int tmp_size;
+
+ if (!PyArg_ParseTuple(args, "s#:has_key", &tmp_ptr, &tmp_size))
+ return NULL;
+ key.dptr = tmp_ptr;
+ key.dsize = tmp_size;
+ check_dbmobject_open(dp);
+ val = dbm_fetch(dp->di_dbm, key);
+ return PyInt_FromLong(val.dptr != NULL);
+}
+
+static PyObject *
+dbm_get(register dbmobject *dp, PyObject *args)
+{
+ datum key, val;
+ PyObject *defvalue = Py_None;
+ char *tmp_ptr;
+ int tmp_size;
+
+ if (!PyArg_ParseTuple(args, "s#|O:get",
+ &tmp_ptr, &tmp_size, &defvalue))
+ return NULL;
+ key.dptr = tmp_ptr;
+ key.dsize = tmp_size;
+ check_dbmobject_open(dp);
+ val = dbm_fetch(dp->di_dbm, key);
+ if (val.dptr != NULL)
+ return PyString_FromStringAndSize(val.dptr, val.dsize);
+ else {
+ Py_INCREF(defvalue);
+ return defvalue;
+ }
+}
+
+static PyObject *
+dbm_setdefault(register dbmobject *dp, PyObject *args)
+{
+ datum key, val;
+ PyObject *defvalue = NULL;
+ char *tmp_ptr;
+ int tmp_size;
+
+ if (!PyArg_ParseTuple(args, "s#|S:setdefault",
+ &tmp_ptr, &tmp_size, &defvalue))
+ return NULL;
+ key.dptr = tmp_ptr;
+ key.dsize = tmp_size;
+ check_dbmobject_open(dp);
+ val = dbm_fetch(dp->di_dbm, key);
+ if (val.dptr != NULL)
+ return PyString_FromStringAndSize(val.dptr, val.dsize);
+ if (defvalue == NULL) {
+ defvalue = PyString_FromStringAndSize(NULL, 0);
+ if (defvalue == NULL)
+ return NULL;
+ }
+ else
+ Py_INCREF(defvalue);
+ val.dptr = PyString_AS_STRING(defvalue);
+ val.dsize = PyString_GET_SIZE(defvalue);
+ if (dbm_store(dp->di_dbm, key, val, DBM_INSERT) < 0) {
+ dbm_clearerr(dp->di_dbm);
+ PyErr_SetString(DbmError, "cannot add item to database");
+ return NULL;
+ }
+ return defvalue;
+}
+
+static PyMethodDef dbm_methods[] = {
+ {"close", (PyCFunction)dbm__close, METH_NOARGS,
+ "close()\nClose the database."},
+ {"keys", (PyCFunction)dbm_keys, METH_NOARGS,
+ "keys() -> list\nReturn a list of all keys in the database."},
+ {"has_key", (PyCFunction)dbm_has_key, METH_VARARGS,
+ "has_key(key} -> boolean\nReturn true iff key is in the database."},
+ {"get", (PyCFunction)dbm_get, METH_VARARGS,
+ "get(key[, default]) -> value\n"
+ "Return the value for key if present, otherwise default."},
+ {"setdefault", (PyCFunction)dbm_setdefault, METH_VARARGS,
+ "setdefault(key[, default]) -> value\n"
+ "Return the value for key if present, otherwise default. If key\n"
+ "is not in the database, it is inserted with default as the value."},
+ {NULL, NULL} /* sentinel */
+};
+
+static PyObject *
+dbm_getattr(dbmobject *dp, char *name)
+{
+ return Py_FindMethod(dbm_methods, (PyObject *)dp, name);
+}
+
+static PyTypeObject Dbmtype = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "dbm.dbm",
+ sizeof(dbmobject),
+ 0,
+ (destructor)dbm_dealloc, /*tp_dealloc*/
+ 0, /*tp_print*/
+ (getattrfunc)dbm_getattr, /*tp_getattr*/
+ 0, /*tp_setattr*/
+ 0, /*tp_compare*/
+ 0, /*tp_repr*/
+ 0, /*tp_as_number*/
+ &dbm_as_sequence, /*tp_as_sequence*/
+ &dbm_as_mapping, /*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_xxx4*/
+};
+
+/* ----------------------------------------------------------------- */
+
+static PyObject *
+dbmopen(PyObject *self, PyObject *args)
+{
+ char *name;
+ char *flags = "r";
+ int iflags;
+ int mode = 0666;
+
+ if ( !PyArg_ParseTuple(args, "s|si:open", &name, &flags, &mode) )
+ return NULL;
+ if ( strcmp(flags, "r") == 0 )
+ iflags = O_RDONLY;
+ else if ( strcmp(flags, "w") == 0 )
+ iflags = O_RDWR;
+ else if ( strcmp(flags, "rw") == 0 ) /* B/W compat */
+ iflags = O_RDWR|O_CREAT;
+ else if ( strcmp(flags, "c") == 0 )
+ iflags = O_RDWR|O_CREAT;
+ else if ( strcmp(flags, "n") == 0 )
+ iflags = O_RDWR|O_CREAT|O_TRUNC;
+ else {
+ PyErr_SetString(DbmError,
+ "arg 2 to open should be 'r', 'w', 'c', or 'n'");
+ return NULL;
+ }
+ return newdbmobject(name, iflags, mode);
+}
+
+static PyMethodDef dbmmodule_methods[] = {
+ { "open", (PyCFunction)dbmopen, METH_VARARGS,
+ "open(path[, flag[, mode]]) -> mapping\n"
+ "Return a database object."},
+ { 0, 0 },
+};
+
+PyMODINIT_FUNC
+initdbm(void) {
+ PyObject *m, *d, *s;
+
+ Dbmtype.ob_type = &PyType_Type;
+ m = Py_InitModule("dbm", dbmmodule_methods);
+ if (m == NULL)
+ return;
+ d = PyModule_GetDict(m);
+ if (DbmError == NULL)
+ DbmError = PyErr_NewException("dbm.error", NULL, NULL);
+ s = PyString_FromString(which_dbm);
+ if (s != NULL) {
+ PyDict_SetItemString(d, "library", s);
+ Py_DECREF(s);
+ }
+ if (DbmError != NULL)
+ PyDict_SetItemString(d, "error", DbmError);
+}