1994-08-08 05:06:37 -03:00
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/* DBM module using dictionary interface */
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1998-03-03 18:02:24 -04:00
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/* Author: Anthony Baxter, after dbmmodule.c */
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/* Doc strings: Mitch Chapman */
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1994-08-08 05:06:37 -03:00
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2019-03-20 07:01:55 -03:00
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#define PY_SSIZE_T_CLEAN
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1996-12-17 15:55:33 -04:00
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#include "Python.h"
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1994-08-08 05:06:37 -03:00
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "gdbm.h"
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2001-02-28 12:44:18 -04:00
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#if defined(WIN32) && !defined(__CYGWIN__)
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1998-10-03 02:13:27 -03:00
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#include "gdbmerrno.h"
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extern const char * gdbm_strerror(gdbm_error);
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#endif
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2015-04-17 15:05:18 -03:00
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/*[clinic input]
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module _gdbm
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class _gdbm.gdbm "dbmobject *" "&Dbmtype"
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[clinic start generated code]*/
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/*[clinic end generated code: output=da39a3ee5e6b4b0d input=113927c6170729b2]*/
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2002-06-13 17:33:02 -03:00
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PyDoc_STRVAR(gdbmmodule__doc__,
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"This module provides an interface to the GNU DBM (GDBM) library.\n\
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1998-03-03 18:02:24 -04:00
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\n\
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This module is quite similar to the dbm module, but uses GDBM instead to\n\
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2015-04-17 15:05:18 -03:00
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provide some additional functionality. Please note that the file formats\n\
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created by GDBM and dbm are incompatible.\n\
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1998-03-03 18:02:24 -04:00
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\n\
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GDBM objects behave like mappings (dictionaries), except that keys and\n\
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2015-04-17 15:05:18 -03:00
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values are always immutable bytes-like objects or strings. Printing\n\
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a GDBM object doesn't print the keys and values, and the items() and\n\
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values() methods are not supported.");
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1998-03-03 18:02:24 -04:00
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1994-08-08 05:06:37 -03:00
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typedef struct {
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2000-07-08 02:00:07 -03:00
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PyObject_HEAD
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2010-05-09 12:52:27 -03:00
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int di_size; /* -1 means recompute */
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2000-07-08 02:00:07 -03:00
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GDBM_FILE di_dbm;
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1994-08-08 05:06:37 -03:00
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} dbmobject;
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2002-07-17 13:30:39 -03:00
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static PyTypeObject Dbmtype;
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1994-08-08 05:06:37 -03:00
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2015-04-17 15:05:18 -03:00
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#include "clinic/_gdbmmodule.c.h"
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2007-12-18 22:45:37 -04:00
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#define is_dbmobject(v) (Py_TYPE(v) == &Dbmtype)
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1997-07-17 19:56:01 -03:00
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#define check_dbmobject_open(v) if ((v)->di_dbm == NULL) \
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2000-07-08 02:00:07 -03:00
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{ PyErr_SetString(DbmError, "GDBM object has already been closed"); \
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return NULL; }
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1997-07-17 19:56:01 -03:00
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1994-08-08 05:06:37 -03:00
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1996-12-17 15:55:33 -04:00
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static PyObject *DbmError;
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1994-08-08 05:06:37 -03:00
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2002-06-13 17:33:02 -03:00
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PyDoc_STRVAR(gdbm_object__doc__,
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"This object represents a GDBM database.\n\
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1998-03-03 18:02:24 -04:00
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GDBM objects behave like mappings (dictionaries), except that keys and\n\
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2015-04-17 15:05:18 -03:00
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values are always immutable bytes-like objects or strings. Printing\n\
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a GDBM object doesn't print the keys and values, and the items() and\n\
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values() methods are not supported.\n\
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1998-03-03 18:02:24 -04:00
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\n\
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GDBM objects also support additional operations such as firstkey,\n\
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2002-06-13 17:33:02 -03:00
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nextkey, reorganize, and sync.");
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1998-03-03 18:02:24 -04:00
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1996-12-17 15:55:33 -04:00
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static PyObject *
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2015-04-17 15:05:18 -03:00
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newdbmobject(const char *file, int flags, int mode)
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1994-08-08 05:06:37 -03:00
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{
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2000-07-08 02:00:07 -03:00
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dbmobject *dp;
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dp = PyObject_New(dbmobject, &Dbmtype);
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if (dp == NULL)
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return NULL;
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dp->di_size = -1;
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errno = 0;
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2015-04-17 15:05:18 -03:00
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if ((dp->di_dbm = gdbm_open((char *)file, 0, flags, mode, NULL)) == 0) {
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2000-07-08 02:00:07 -03:00
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if (errno != 0)
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2018-09-27 16:54:34 -03:00
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PyErr_SetFromErrnoWithFilename(DbmError, file);
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2000-07-08 02:00:07 -03:00
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else
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PyErr_SetString(DbmError, gdbm_strerror(gdbm_errno));
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Py_DECREF(dp);
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return NULL;
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}
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return (PyObject *)dp;
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1994-08-08 05:06:37 -03:00
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}
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/* Methods */
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static void
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2013-08-13 15:18:52 -03:00
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dbm_dealloc(dbmobject *dp)
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1994-08-08 05:06:37 -03:00
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{
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2000-07-08 02:00:07 -03:00
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if (dp->di_dbm)
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gdbm_close(dp->di_dbm);
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PyObject_Del(dp);
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1994-08-08 05:06:37 -03:00
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}
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2006-02-15 13:27:45 -04:00
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static Py_ssize_t
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2000-07-08 02:00:07 -03:00
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dbm_length(dbmobject *dp)
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1994-08-08 05:06:37 -03:00
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{
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2000-07-08 02:00:07 -03:00
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if (dp->di_dbm == NULL) {
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2007-05-23 17:51:02 -03:00
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PyErr_SetString(DbmError, "GDBM object has already been closed");
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return -1;
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2000-07-08 02:00:07 -03:00
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}
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if (dp->di_size < 0) {
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datum key,okey;
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int size;
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okey.dsize=0;
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2006-03-01 18:54:36 -04:00
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okey.dptr=NULL;
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2000-07-08 02:00:07 -03:00
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size = 0;
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for (key=gdbm_firstkey(dp->di_dbm); key.dptr;
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key = gdbm_nextkey(dp->di_dbm,okey)) {
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size++;
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if(okey.dsize) free(okey.dptr);
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okey=key;
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1997-07-17 19:56:01 -03:00
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}
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2000-07-08 02:00:07 -03:00
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dp->di_size = size;
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}
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return dp->di_size;
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1994-08-08 05:06:37 -03:00
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}
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2019-03-20 07:01:55 -03:00
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// Wrapper function for PyArg_Parse(o, "s#", &d.dptr, &d.size).
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// This function is needed to support PY_SSIZE_T_CLEAN.
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// Return 1 on success, same to PyArg_Parse().
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static int
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parse_datum(PyObject *o, datum *d, const char *failmsg)
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{
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Py_ssize_t size;
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if (!PyArg_Parse(o, "s#", &d->dptr, &size)) {
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if (failmsg != NULL) {
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PyErr_SetString(PyExc_TypeError, failmsg);
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}
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return 0;
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}
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if (INT_MAX < size) {
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PyErr_SetString(PyExc_OverflowError, "size does not fit in an int");
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return 0;
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}
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d->dsize = size;
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return 1;
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}
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|
1996-12-17 15:55:33 -04:00
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static PyObject *
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2013-08-13 15:18:52 -03:00
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dbm_subscript(dbmobject *dp, PyObject *key)
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1994-08-08 05:06:37 -03:00
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{
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2000-07-08 02:00:07 -03:00
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PyObject *v;
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datum drec, krec;
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2019-03-20 07:01:55 -03:00
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if (!parse_datum(key, &krec, NULL)) {
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2000-07-08 02:00:07 -03:00
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return NULL;
|
2019-03-20 07:01:55 -03:00
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}
|
2000-07-08 02:00:07 -03:00
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if (dp->di_dbm == NULL) {
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PyErr_SetString(DbmError,
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"GDBM object has already been closed");
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return NULL;
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}
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drec = gdbm_fetch(dp->di_dbm, krec);
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if (drec.dptr == 0) {
|
2007-05-23 17:51:02 -03:00
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PyErr_SetObject(PyExc_KeyError, key);
|
2000-07-08 02:00:07 -03:00
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return NULL;
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}
|
2008-05-26 10:28:38 -03:00
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v = PyBytes_FromStringAndSize(drec.dptr, drec.dsize);
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2000-07-08 02:00:07 -03:00
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free(drec.dptr);
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return v;
|
1994-08-08 05:06:37 -03:00
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}
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2015-04-17 15:05:18 -03:00
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|
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/*[clinic input]
|
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_gdbm.gdbm.get
|
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key: object
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default: object = None
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/
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Get the value for key, or default if not present.
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[clinic start generated code]*/
|
2010-12-04 05:14:36 -04:00
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static PyObject *
|
2015-04-17 15:05:18 -03:00
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_gdbm_gdbm_get_impl(dbmobject *self, PyObject *key, PyObject *default_value)
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/*[clinic end generated code: output=19b7c585ad4f554a input=a9c20423f34c17b6]*/
|
2010-12-04 05:14:36 -04:00
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{
|
2015-04-17 15:05:18 -03:00
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PyObject *res;
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2010-12-04 05:14:36 -04:00
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2015-04-17 15:05:18 -03:00
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res = dbm_subscript(self, key);
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2010-12-04 05:14:36 -04:00
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if (res == NULL && PyErr_ExceptionMatches(PyExc_KeyError)) {
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PyErr_Clear();
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2015-04-17 15:05:18 -03:00
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Py_INCREF(default_value);
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return default_value;
|
2010-12-04 05:14:36 -04:00
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}
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return res;
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}
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|
1994-08-08 05:06:37 -03:00
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static int
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2000-07-08 02:00:07 -03:00
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dbm_ass_sub(dbmobject *dp, PyObject *v, PyObject *w)
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1994-08-08 05:06:37 -03:00
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{
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2000-07-08 02:00:07 -03:00
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datum krec, drec;
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2019-03-20 07:01:55 -03:00
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const char *failmsg = "gdbm mappings have bytes or string indices only";
|
2000-07-08 02:00:07 -03:00
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2019-03-20 07:01:55 -03:00
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if (!parse_datum(v, &krec, failmsg)) {
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2000-07-08 02:00:07 -03:00
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return -1;
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}
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if (dp->di_dbm == NULL) {
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PyErr_SetString(DbmError,
|
2007-05-23 17:51:02 -03:00
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"GDBM object has already been closed");
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return -1;
|
2000-07-08 02:00:07 -03:00
|
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}
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dp->di_size = -1;
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if (w == NULL) {
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if (gdbm_delete(dp->di_dbm, krec) < 0) {
|
2018-12-12 08:46:55 -04:00
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if (gdbm_errno == GDBM_ITEM_NOT_FOUND) {
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PyErr_SetObject(PyExc_KeyError, v);
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}
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else {
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PyErr_SetString(DbmError, gdbm_strerror(gdbm_errno));
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}
|
2000-07-08 02:00:07 -03:00
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return -1;
|
1997-07-17 19:56:01 -03:00
|
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}
|
2000-07-08 02:00:07 -03:00
|
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}
|
|
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else {
|
2019-03-20 07:01:55 -03:00
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if (!parse_datum(w, &drec, failmsg)) {
|
2000-07-08 02:00:07 -03:00
|
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return -1;
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|
}
|
|
|
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errno = 0;
|
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if (gdbm_store(dp->di_dbm, krec, drec, GDBM_REPLACE) < 0) {
|
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|
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if (errno != 0)
|
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PyErr_SetFromErrno(DbmError);
|
|
|
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else
|
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PyErr_SetString(DbmError,
|
|
|
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gdbm_strerror(gdbm_errno));
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
1994-08-08 05:06:37 -03:00
|
|
|
}
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
/*[clinic input]
|
|
|
|
_gdbm.gdbm.setdefault
|
|
|
|
|
|
|
|
key: object
|
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default: object = None
|
|
|
|
/
|
|
|
|
|
|
|
|
Get value for key, or set it to default and return default if not present.
|
|
|
|
[clinic start generated code]*/
|
2010-12-04 05:14:36 -04:00
|
|
|
|
|
|
|
static PyObject *
|
2015-04-17 15:05:18 -03:00
|
|
|
_gdbm_gdbm_setdefault_impl(dbmobject *self, PyObject *key,
|
|
|
|
PyObject *default_value)
|
|
|
|
/*[clinic end generated code: output=88760ee520329012 input=0db46b69e9680171]*/
|
2010-12-04 05:14:36 -04:00
|
|
|
{
|
2015-04-17 15:05:18 -03:00
|
|
|
PyObject *res;
|
2010-12-04 05:14:36 -04:00
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
res = dbm_subscript(self, key);
|
2010-12-04 05:14:36 -04:00
|
|
|
if (res == NULL && PyErr_ExceptionMatches(PyExc_KeyError)) {
|
|
|
|
PyErr_Clear();
|
2015-04-17 15:05:18 -03:00
|
|
|
if (dbm_ass_sub(self, key, default_value) < 0)
|
2010-12-04 05:14:36 -04:00
|
|
|
return NULL;
|
2015-04-17 15:05:18 -03:00
|
|
|
return dbm_subscript(self, key);
|
2010-12-04 05:14:36 -04:00
|
|
|
}
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
1996-12-17 15:55:33 -04:00
|
|
|
static PyMappingMethods dbm_as_mapping = {
|
2010-05-09 12:52:27 -03:00
|
|
|
(lenfunc)dbm_length, /*mp_length*/
|
2000-07-08 02:00:07 -03:00
|
|
|
(binaryfunc)dbm_subscript, /*mp_subscript*/
|
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|
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(objobjargproc)dbm_ass_sub, /*mp_ass_subscript*/
|
1994-08-08 05:06:37 -03:00
|
|
|
};
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
/*[clinic input]
|
|
|
|
_gdbm.gdbm.close
|
|
|
|
|
|
|
|
Close the database.
|
|
|
|
[clinic start generated code]*/
|
1998-03-03 18:02:24 -04:00
|
|
|
|
1996-12-17 15:55:33 -04:00
|
|
|
static PyObject *
|
2015-04-17 15:05:18 -03:00
|
|
|
_gdbm_gdbm_close_impl(dbmobject *self)
|
|
|
|
/*[clinic end generated code: output=23512a594598b563 input=0a203447379b45fd]*/
|
1995-07-07 19:37:11 -03:00
|
|
|
{
|
2015-04-17 15:05:18 -03:00
|
|
|
if (self->di_dbm)
|
|
|
|
gdbm_close(self->di_dbm);
|
|
|
|
self->di_dbm = NULL;
|
2017-01-23 03:47:21 -04:00
|
|
|
Py_RETURN_NONE;
|
1995-07-07 19:37:11 -03:00
|
|
|
}
|
|
|
|
|
2007-05-23 17:51:02 -03:00
|
|
|
/* XXX Should return a set or a set view */
|
2015-04-17 15:05:18 -03:00
|
|
|
/*[clinic input]
|
|
|
|
_gdbm.gdbm.keys
|
|
|
|
|
|
|
|
Get a list of all keys in the database.
|
|
|
|
[clinic start generated code]*/
|
1998-03-03 18:02:24 -04:00
|
|
|
|
1996-12-17 15:55:33 -04:00
|
|
|
static PyObject *
|
2015-04-17 15:05:18 -03:00
|
|
|
_gdbm_gdbm_keys_impl(dbmobject *self)
|
|
|
|
/*[clinic end generated code: output=cb4b1776c3645dcc input=1832ee0a3132cfaf]*/
|
1994-08-08 05:06:37 -03:00
|
|
|
{
|
2013-08-13 15:18:52 -03:00
|
|
|
PyObject *v, *item;
|
2000-07-08 02:00:07 -03:00
|
|
|
datum key, nextkey;
|
|
|
|
int err;
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
if (self == NULL || !is_dbmobject(self)) {
|
2000-07-08 02:00:07 -03:00
|
|
|
PyErr_BadInternalCall();
|
|
|
|
return NULL;
|
|
|
|
}
|
2015-04-17 15:05:18 -03:00
|
|
|
check_dbmobject_open(self);
|
2000-07-08 02:00:07 -03:00
|
|
|
|
|
|
|
v = PyList_New(0);
|
|
|
|
if (v == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
key = gdbm_firstkey(self->di_dbm);
|
2000-07-08 02:00:07 -03:00
|
|
|
while (key.dptr) {
|
2008-05-26 10:28:38 -03:00
|
|
|
item = PyBytes_FromStringAndSize(key.dptr, key.dsize);
|
2000-07-08 02:00:07 -03:00
|
|
|
if (item == NULL) {
|
|
|
|
free(key.dptr);
|
|
|
|
Py_DECREF(v);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
err = PyList_Append(v, item);
|
|
|
|
Py_DECREF(item);
|
|
|
|
if (err != 0) {
|
|
|
|
free(key.dptr);
|
|
|
|
Py_DECREF(v);
|
|
|
|
return NULL;
|
|
|
|
}
|
2015-04-17 15:05:18 -03:00
|
|
|
nextkey = gdbm_nextkey(self->di_dbm, key);
|
2000-07-08 02:00:07 -03:00
|
|
|
free(key.dptr);
|
|
|
|
key = nextkey;
|
|
|
|
}
|
|
|
|
return v;
|
1994-08-08 05:06:37 -03:00
|
|
|
}
|
|
|
|
|
2006-08-19 20:18:48 -03:00
|
|
|
static int
|
|
|
|
dbm_contains(PyObject *self, PyObject *arg)
|
1994-08-08 05:06:37 -03:00
|
|
|
{
|
2006-08-19 20:18:48 -03:00
|
|
|
dbmobject *dp = (dbmobject *)self;
|
2000-07-08 02:00:07 -03:00
|
|
|
datum key;
|
2013-10-24 18:06:52 -03:00
|
|
|
Py_ssize_t size;
|
2000-07-08 02:00:07 -03:00
|
|
|
|
2006-08-19 20:18:48 -03:00
|
|
|
if ((dp)->di_dbm == NULL) {
|
2010-05-09 12:52:27 -03:00
|
|
|
PyErr_SetString(DbmError,
|
|
|
|
"GDBM object has already been closed");
|
|
|
|
return -1;
|
2006-08-19 20:18:48 -03:00
|
|
|
}
|
2013-10-24 18:06:52 -03:00
|
|
|
if (PyUnicode_Check(arg)) {
|
2017-01-22 17:07:07 -04:00
|
|
|
key.dptr = (char *)PyUnicode_AsUTF8AndSize(arg, &size);
|
2013-10-24 18:06:52 -03:00
|
|
|
key.dsize = size;
|
|
|
|
if (key.dptr == NULL)
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
else if (!PyBytes_Check(arg)) {
|
2010-05-09 12:52:27 -03:00
|
|
|
PyErr_Format(PyExc_TypeError,
|
2013-10-24 18:06:52 -03:00
|
|
|
"gdbm key must be bytes or string, not %.100s",
|
2010-05-09 12:52:27 -03:00
|
|
|
arg->ob_type->tp_name);
|
|
|
|
return -1;
|
2006-08-19 20:18:48 -03:00
|
|
|
}
|
2013-10-24 18:06:52 -03:00
|
|
|
else {
|
|
|
|
key.dptr = PyBytes_AS_STRING(arg);
|
|
|
|
key.dsize = PyBytes_GET_SIZE(arg);
|
|
|
|
}
|
2006-08-19 20:18:48 -03:00
|
|
|
return gdbm_exists(dp->di_dbm, key);
|
1994-08-08 05:06:37 -03:00
|
|
|
}
|
|
|
|
|
2006-08-19 20:18:48 -03:00
|
|
|
static PySequenceMethods dbm_as_sequence = {
|
2010-05-09 12:52:27 -03:00
|
|
|
0, /* sq_length */
|
|
|
|
0, /* sq_concat */
|
|
|
|
0, /* sq_repeat */
|
|
|
|
0, /* sq_item */
|
|
|
|
0, /* sq_slice */
|
|
|
|
0, /* sq_ass_item */
|
|
|
|
0, /* sq_ass_slice */
|
|
|
|
dbm_contains, /* sq_contains */
|
|
|
|
0, /* sq_inplace_concat */
|
|
|
|
0, /* sq_inplace_repeat */
|
2006-08-19 20:18:48 -03:00
|
|
|
};
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
/*[clinic input]
|
|
|
|
_gdbm.gdbm.firstkey
|
|
|
|
|
|
|
|
Return the starting key for the traversal.
|
|
|
|
|
|
|
|
It's possible to loop over every key in the database using this method
|
|
|
|
and the nextkey() method. The traversal is ordered by GDBM's internal
|
|
|
|
hash values, and won't be sorted by the key values.
|
|
|
|
[clinic start generated code]*/
|
1998-03-03 18:02:24 -04:00
|
|
|
|
1996-12-17 15:55:33 -04:00
|
|
|
static PyObject *
|
2015-04-17 15:05:18 -03:00
|
|
|
_gdbm_gdbm_firstkey_impl(dbmobject *self)
|
|
|
|
/*[clinic end generated code: output=9ff85628d84b65d2 input=0dbd6a335d69bba0]*/
|
1995-03-16 12:07:34 -04:00
|
|
|
{
|
2013-08-13 15:18:52 -03:00
|
|
|
PyObject *v;
|
2000-07-08 02:00:07 -03:00
|
|
|
datum key;
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
check_dbmobject_open(self);
|
|
|
|
key = gdbm_firstkey(self->di_dbm);
|
2000-07-08 02:00:07 -03:00
|
|
|
if (key.dptr) {
|
2008-05-26 10:28:38 -03:00
|
|
|
v = PyBytes_FromStringAndSize(key.dptr, key.dsize);
|
2000-07-08 02:00:07 -03:00
|
|
|
free(key.dptr);
|
|
|
|
return v;
|
|
|
|
}
|
|
|
|
else {
|
2017-01-23 03:47:21 -04:00
|
|
|
Py_RETURN_NONE;
|
2000-07-08 02:00:07 -03:00
|
|
|
}
|
1995-03-16 12:07:34 -04:00
|
|
|
}
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
/*[clinic input]
|
|
|
|
_gdbm.gdbm.nextkey
|
|
|
|
|
2015-05-08 03:30:09 -03:00
|
|
|
key: str(accept={str, robuffer}, zeroes=True)
|
2015-04-17 15:05:18 -03:00
|
|
|
/
|
|
|
|
|
|
|
|
Returns the key that follows key in the traversal.
|
|
|
|
|
|
|
|
The following code prints every key in the database db, without having
|
|
|
|
to create a list in memory that contains them all:
|
|
|
|
|
|
|
|
k = db.firstkey()
|
|
|
|
while k != None:
|
|
|
|
print(k)
|
|
|
|
k = db.nextkey(k)
|
|
|
|
[clinic start generated code]*/
|
1998-03-03 18:02:24 -04:00
|
|
|
|
1996-12-17 15:55:33 -04:00
|
|
|
static PyObject *
|
2015-04-17 15:05:18 -03:00
|
|
|
_gdbm_gdbm_nextkey_impl(dbmobject *self, const char *key,
|
|
|
|
Py_ssize_clean_t key_length)
|
2015-05-08 03:30:09 -03:00
|
|
|
/*[clinic end generated code: output=192ab892de6eb2f6 input=1f1606943614e36f]*/
|
1995-03-16 12:07:34 -04:00
|
|
|
{
|
2013-08-13 15:18:52 -03:00
|
|
|
PyObject *v;
|
2015-04-17 15:05:18 -03:00
|
|
|
datum dbm_key, nextkey;
|
2000-07-08 02:00:07 -03:00
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
dbm_key.dptr = (char *)key;
|
|
|
|
dbm_key.dsize = key_length;
|
|
|
|
check_dbmobject_open(self);
|
|
|
|
nextkey = gdbm_nextkey(self->di_dbm, dbm_key);
|
2000-07-08 02:00:07 -03:00
|
|
|
if (nextkey.dptr) {
|
2008-05-26 10:28:38 -03:00
|
|
|
v = PyBytes_FromStringAndSize(nextkey.dptr, nextkey.dsize);
|
2000-07-08 02:00:07 -03:00
|
|
|
free(nextkey.dptr);
|
|
|
|
return v;
|
|
|
|
}
|
|
|
|
else {
|
2017-01-23 03:47:21 -04:00
|
|
|
Py_RETURN_NONE;
|
2000-07-08 02:00:07 -03:00
|
|
|
}
|
1995-03-16 12:07:34 -04:00
|
|
|
}
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
/*[clinic input]
|
|
|
|
_gdbm.gdbm.reorganize
|
|
|
|
|
|
|
|
Reorganize the database.
|
|
|
|
|
|
|
|
If you have carried out a lot of deletions and would like to shrink
|
|
|
|
the space used by the GDBM file, this routine will reorganize the
|
|
|
|
database. GDBM will not shorten the length of a database file except
|
|
|
|
by using this reorganization; otherwise, deleted file space will be
|
|
|
|
kept and reused as new (key,value) pairs are added.
|
|
|
|
[clinic start generated code]*/
|
1998-03-03 18:02:24 -04:00
|
|
|
|
1996-12-17 15:55:33 -04:00
|
|
|
static PyObject *
|
2015-04-17 15:05:18 -03:00
|
|
|
_gdbm_gdbm_reorganize_impl(dbmobject *self)
|
|
|
|
/*[clinic end generated code: output=38d9624df92e961d input=f6bea85bcfd40dd2]*/
|
1995-03-16 12:07:34 -04:00
|
|
|
{
|
2015-04-17 15:05:18 -03:00
|
|
|
check_dbmobject_open(self);
|
2000-07-08 02:00:07 -03:00
|
|
|
errno = 0;
|
2015-04-17 15:05:18 -03:00
|
|
|
if (gdbm_reorganize(self->di_dbm) < 0) {
|
2000-07-08 02:00:07 -03:00
|
|
|
if (errno != 0)
|
|
|
|
PyErr_SetFromErrno(DbmError);
|
|
|
|
else
|
|
|
|
PyErr_SetString(DbmError, gdbm_strerror(gdbm_errno));
|
|
|
|
return NULL;
|
|
|
|
}
|
2017-01-23 03:47:21 -04:00
|
|
|
Py_RETURN_NONE;
|
1995-03-16 12:07:34 -04:00
|
|
|
}
|
|
|
|
|
2015-04-17 15:05:18 -03:00
|
|
|
/*[clinic input]
|
|
|
|
_gdbm.gdbm.sync
|
|
|
|
|
|
|
|
Flush the database to the disk file.
|
|
|
|
|
|
|
|
When the database has been opened in fast mode, this method forces
|
|
|
|
any unwritten data to be written to the disk.
|
|
|
|
[clinic start generated code]*/
|
1998-03-03 18:02:24 -04:00
|
|
|
|
1997-03-25 13:39:56 -04:00
|
|
|
static PyObject *
|
2015-04-17 15:05:18 -03:00
|
|
|
_gdbm_gdbm_sync_impl(dbmobject *self)
|
|
|
|
/*[clinic end generated code: output=488b15f47028f125 input=2a47d2c9e153ab8a]*/
|
1997-03-25 13:39:56 -04:00
|
|
|
{
|
2015-04-17 15:05:18 -03:00
|
|
|
check_dbmobject_open(self);
|
|
|
|
gdbm_sync(self->di_dbm);
|
2017-01-23 03:47:21 -04:00
|
|
|
Py_RETURN_NONE;
|
1997-03-25 13:39:56 -04:00
|
|
|
}
|
|
|
|
|
2013-11-17 01:59:51 -04:00
|
|
|
static PyObject *
|
|
|
|
dbm__enter__(PyObject *self, PyObject *args)
|
|
|
|
{
|
|
|
|
Py_INCREF(self);
|
|
|
|
return self;
|
|
|
|
}
|
|
|
|
|
|
|
|
static PyObject *
|
|
|
|
dbm__exit__(PyObject *self, PyObject *args)
|
|
|
|
{
|
|
|
|
_Py_IDENTIFIER(close);
|
2019-07-08 05:19:25 -03:00
|
|
|
return _PyObject_CallMethodIdNoArgs(self, &PyId_close);
|
2013-11-17 01:59:51 -04:00
|
|
|
}
|
|
|
|
|
1996-12-17 15:55:33 -04:00
|
|
|
static PyMethodDef dbm_methods[] = {
|
2015-04-17 15:05:18 -03:00
|
|
|
_GDBM_GDBM_CLOSE_METHODDEF
|
|
|
|
_GDBM_GDBM_KEYS_METHODDEF
|
|
|
|
_GDBM_GDBM_FIRSTKEY_METHODDEF
|
|
|
|
_GDBM_GDBM_NEXTKEY_METHODDEF
|
|
|
|
_GDBM_GDBM_REORGANIZE_METHODDEF
|
|
|
|
_GDBM_GDBM_SYNC_METHODDEF
|
|
|
|
_GDBM_GDBM_GET_METHODDEF
|
|
|
|
_GDBM_GDBM_SETDEFAULT_METHODDEF
|
2013-11-17 01:59:51 -04:00
|
|
|
{"__enter__", dbm__enter__, METH_NOARGS, NULL},
|
|
|
|
{"__exit__", dbm__exit__, METH_VARARGS, NULL},
|
2010-05-09 12:52:27 -03:00
|
|
|
{NULL, NULL} /* sentinel */
|
1994-08-08 05:06:37 -03:00
|
|
|
};
|
|
|
|
|
1996-12-17 15:55:33 -04:00
|
|
|
static PyTypeObject Dbmtype = {
|
Merged revisions 56467-56482 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk
................
r56477 | martin.v.loewis | 2007-07-21 09:04:38 +0200 (Sa, 21 Jul 2007) | 11 lines
Merged revisions 56466-56476 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r56476 | martin.v.loewis | 2007-07-21 08:55:02 +0200 (Sa, 21 Jul 2007) | 4 lines
PEP 3123: Provide forward compatibility with Python 3.0, while keeping
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
........
................
r56478 | martin.v.loewis | 2007-07-21 09:47:23 +0200 (Sa, 21 Jul 2007) | 2 lines
PEP 3123: Use proper C inheritance for PyObject.
................
r56479 | martin.v.loewis | 2007-07-21 10:06:55 +0200 (Sa, 21 Jul 2007) | 3 lines
Add longintrepr.h to Python.h, so that the compiler can
see that PyFalse is really some kind of PyObject*.
................
r56480 | martin.v.loewis | 2007-07-21 10:47:18 +0200 (Sa, 21 Jul 2007) | 2 lines
Qualify SHIFT, MASK, BASE.
................
r56482 | martin.v.loewis | 2007-07-21 19:10:57 +0200 (Sa, 21 Jul 2007) | 2 lines
Correctly refer to _ob_next.
................
2007-07-21 14:22:18 -03:00
|
|
|
PyVarObject_HEAD_INIT(0, 0)
|
2008-05-26 07:29:35 -03:00
|
|
|
"_gdbm.gdbm",
|
2000-07-08 02:00:07 -03:00
|
|
|
sizeof(dbmobject),
|
|
|
|
0,
|
|
|
|
(destructor)dbm_dealloc, /*tp_dealloc*/
|
2019-05-30 23:13:39 -03:00
|
|
|
0, /*tp_vectorcall_offset*/
|
2008-07-02 19:38:47 -03:00
|
|
|
0, /*tp_getattr*/
|
2000-07-08 02:00:07 -03:00
|
|
|
0, /*tp_setattr*/
|
2019-05-30 23:13:39 -03:00
|
|
|
0, /*tp_as_async*/
|
2000-07-08 02:00:07 -03:00
|
|
|
0, /*tp_repr*/
|
|
|
|
0, /*tp_as_number*/
|
2006-08-19 20:18:48 -03:00
|
|
|
&dbm_as_sequence, /*tp_as_sequence*/
|
2000-07-08 02:00:07 -03:00
|
|
|
&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*/
|
Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61064,61066-61080 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r61063 | andrew.kuchling | 2008-02-25 17:29:19 +0100 (Mon, 25 Feb 2008) | 1 line
Move .setupterm() output so that we don't try to call endwin() if it fails
........
r61064 | andrew.kuchling | 2008-02-25 17:29:58 +0100 (Mon, 25 Feb 2008) | 1 line
Use file descriptor for real stdout
........
r61067 | facundo.batista | 2008-02-25 19:06:00 +0100 (Mon, 25 Feb 2008) | 4 lines
Issue 2117. Update compiler module to handle class decorators.
Thanks Thomas Herve
........
r61069 | georg.brandl | 2008-02-25 21:17:56 +0100 (Mon, 25 Feb 2008) | 2 lines
Rename sphinx.addons to sphinx.ext.
........
r61071 | georg.brandl | 2008-02-25 21:20:45 +0100 (Mon, 25 Feb 2008) | 2 lines
Revert r61029.
........
r61072 | facundo.batista | 2008-02-25 23:33:55 +0100 (Mon, 25 Feb 2008) | 4 lines
Issue 2168. gdbm and dbm needs to be iterable; this fixes a
failure in the shelve module. Thanks Thomas Herve.
........
r61073 | raymond.hettinger | 2008-02-25 23:42:32 +0100 (Mon, 25 Feb 2008) | 1 line
Make sure the itertools filter functions give the same performance for func=bool as func=None.
........
r61074 | raymond.hettinger | 2008-02-26 00:17:41 +0100 (Tue, 26 Feb 2008) | 1 line
Revert part of r60927 which made invalid assumptions about the API offered by db modules.
........
r61075 | facundo.batista | 2008-02-26 00:46:02 +0100 (Tue, 26 Feb 2008) | 3 lines
Coerced PyBool_Type to be able to compare it.
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r61076 | raymond.hettinger | 2008-02-26 03:46:54 +0100 (Tue, 26 Feb 2008) | 1 line
Docs for itertools.combinations(). Implementation in forthcoming checkin.
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r61077 | neal.norwitz | 2008-02-26 05:50:37 +0100 (Tue, 26 Feb 2008) | 3 lines
Don't use a hard coded port. This test could hang/fail if the port is in use.
Speed this test up by avoiding a sleep and using the event.
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r61078 | neal.norwitz | 2008-02-26 06:12:50 +0100 (Tue, 26 Feb 2008) | 1 line
Whitespace normalization
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r61079 | neal.norwitz | 2008-02-26 06:23:51 +0100 (Tue, 26 Feb 2008) | 1 line
Whitespace normalization
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r61080 | georg.brandl | 2008-02-26 07:40:10 +0100 (Tue, 26 Feb 2008) | 2 lines
Banish tab.
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2008-02-26 04:18:30 -04:00
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Py_TPFLAGS_DEFAULT, /*tp_xxx4*/
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2000-07-08 02:00:07 -03:00
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gdbm_object__doc__, /*tp_doc*/
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2008-07-02 19:38:47 -03:00
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0, /*tp_traverse*/
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0, /*tp_clear*/
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0, /*tp_richcompare*/
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0, /*tp_weaklistoffset*/
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0, /*tp_iter*/
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0, /*tp_iternext*/
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dbm_methods, /*tp_methods*/
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1994-08-08 05:06:37 -03:00
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};
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/* ----------------------------------------------------------------- */
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2015-04-17 15:05:18 -03:00
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/*[clinic input]
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_gdbm.open as dbmopen
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2018-02-26 10:02:22 -04:00
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filename: unicode
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2015-04-17 15:05:18 -03:00
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flags: str="r"
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mode: int(py_default="0o666") = 0o666
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/
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Open a dbm database and return a dbm object.
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The filename argument is the name of the database file.
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The optional flags argument can be 'r' (to open an existing database
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for reading only -- default), 'w' (to open an existing database for
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reading and writing), 'c' (which creates the database if it doesn't
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exist), or 'n' (which always creates a new empty database).
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Some versions of gdbm support additional flags which must be
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appended to one of the flags described above. The module constant
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'open_flags' is a string of valid additional flags. The 'f' flag
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opens the database in fast mode; altered data will not automatically
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be written to the disk after every change. This results in faster
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writes to the database, but may result in an inconsistent database
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if the program crashes while the database is still open. Use the
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sync() method to force any unwritten data to be written to the disk.
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The 's' flag causes all database operations to be synchronized to
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disk. The 'u' flag disables locking of the database file.
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The optional mode argument is the Unix mode of the file, used only
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when the database has to be created. It defaults to octal 0o666.
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[clinic start generated code]*/
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1998-03-03 18:02:24 -04:00
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1996-12-17 15:55:33 -04:00
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static PyObject *
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2018-02-26 10:02:22 -04:00
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dbmopen_impl(PyObject *module, PyObject *filename, const char *flags,
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int mode)
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/*[clinic end generated code: output=9527750f5df90764 input=3be0b0875974b928]*/
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1994-08-08 05:06:37 -03:00
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{
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2000-07-08 02:00:07 -03:00
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int iflags;
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switch (flags[0]) {
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case 'r':
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iflags = GDBM_READER;
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break;
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case 'w':
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iflags = GDBM_WRITER;
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break;
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case 'c':
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iflags = GDBM_WRCREAT;
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break;
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case 'n':
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iflags = GDBM_NEWDB;
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break;
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default:
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PyErr_SetString(DbmError,
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2000-12-17 03:14:13 -04:00
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"First flag must be one of 'r', 'w', 'c' or 'n'");
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2000-07-08 02:00:07 -03:00
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return NULL;
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}
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2000-12-17 03:14:13 -04:00
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for (flags++; *flags != '\0'; flags++) {
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char buf[40];
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switch (*flags) {
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#ifdef GDBM_FAST
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case 'f':
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iflags |= GDBM_FAST;
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break;
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#endif
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#ifdef GDBM_SYNC
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case 's':
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iflags |= GDBM_SYNC;
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break;
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#endif
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#ifdef GDBM_NOLOCK
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case 'u':
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iflags |= GDBM_NOLOCK;
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break;
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#endif
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default:
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2001-11-28 16:27:42 -04:00
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PyOS_snprintf(buf, sizeof(buf), "Flag '%c' is not supported.",
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2010-05-09 12:52:27 -03:00
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*flags);
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2000-12-17 03:14:13 -04:00
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PyErr_SetString(DbmError, buf);
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return NULL;
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}
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}
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2018-02-26 10:02:22 -04:00
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PyObject *filenamebytes = PyUnicode_EncodeFSDefault(filename);
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if (filenamebytes == NULL) {
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return NULL;
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}
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const char *name = PyBytes_AS_STRING(filenamebytes);
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if (strlen(name) != (size_t)PyBytes_GET_SIZE(filenamebytes)) {
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Py_DECREF(filenamebytes);
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PyErr_SetString(PyExc_ValueError, "embedded null character");
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return NULL;
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}
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PyObject *self = newdbmobject(name, iflags, mode);
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Py_DECREF(filenamebytes);
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return self;
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1994-08-08 05:06:37 -03:00
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}
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2015-12-25 13:53:18 -04:00
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static const char dbmmodule_open_flags[] = "rwcn"
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2000-12-17 03:14:13 -04:00
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#ifdef GDBM_FAST
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"f"
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#endif
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#ifdef GDBM_SYNC
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"s"
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#endif
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#ifdef GDBM_NOLOCK
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"u"
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#endif
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;
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1996-12-17 15:55:33 -04:00
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static PyMethodDef dbmmodule_methods[] = {
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2015-04-17 15:05:18 -03:00
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DBMOPEN_METHODDEF
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2000-07-08 02:00:07 -03:00
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{ 0, 0 },
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1994-08-08 05:06:37 -03:00
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};
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2008-06-11 02:26:20 -03:00
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static struct PyModuleDef _gdbmmodule = {
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2010-05-09 12:52:27 -03:00
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PyModuleDef_HEAD_INIT,
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"_gdbm",
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gdbmmodule__doc__,
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-1,
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dbmmodule_methods,
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NULL,
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NULL,
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NULL,
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NULL
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2008-06-11 02:26:20 -03:00
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};
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2002-08-01 23:27:13 -03:00
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PyMODINIT_FUNC
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2008-06-11 02:26:20 -03:00
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PyInit__gdbm(void) {
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2018-06-19 18:29:22 -03:00
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PyObject *m;
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2000-07-08 02:00:07 -03:00
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2006-08-19 20:18:48 -03:00
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if (PyType_Ready(&Dbmtype) < 0)
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2010-05-09 12:52:27 -03:00
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return NULL;
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2008-06-11 02:26:20 -03:00
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m = PyModule_Create(&_gdbmmodule);
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2018-06-19 18:29:22 -03:00
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if (m == NULL) {
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2010-05-09 12:52:27 -03:00
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return NULL;
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2018-06-19 18:29:22 -03:00
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}
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2017-04-16 04:46:38 -03:00
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DbmError = PyErr_NewException("_gdbm.error", PyExc_OSError, NULL);
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2018-06-19 18:29:22 -03:00
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if (DbmError == NULL) {
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goto error;
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}
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Py_INCREF(DbmError);
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if (PyModule_AddObject(m, "error", DbmError) < 0) {
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Py_DECREF(DbmError);
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goto error;
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}
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if (PyModule_AddStringConstant(m, "open_flags",
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dbmmodule_open_flags) < 0) {
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goto error;
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2000-12-17 03:14:13 -04:00
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}
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2018-06-19 18:29:22 -03:00
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2018-06-20 10:23:30 -03:00
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#if defined(GDBM_VERSION_MAJOR) && defined(GDBM_VERSION_MINOR) && \
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defined(GDBM_VERSION_PATCH)
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2018-06-19 18:29:22 -03:00
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PyObject *obj = Py_BuildValue("iii", GDBM_VERSION_MAJOR,
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GDBM_VERSION_MINOR, GDBM_VERSION_PATCH);
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if (obj == NULL) {
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goto error;
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}
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if (PyModule_AddObject(m, "_GDBM_VERSION", obj) < 0) {
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Py_DECREF(obj);
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goto error;
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}
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2018-06-20 10:23:30 -03:00
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#endif
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2018-06-19 18:29:22 -03:00
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2008-06-11 02:26:20 -03:00
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return m;
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2018-06-19 18:29:22 -03:00
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error:
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Py_DECREF(m);
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return NULL;
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1994-08-08 05:06:37 -03:00
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}
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