Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 2 | Copyright (c) 2000, BeOpen.com. |
| 3 | Copyright (c) 1995-2000, Corporation for National Research Initiatives. |
| 4 | Copyright (c) 1990-1995, Stichting Mathematisch Centrum. |
| 5 | All rights reserved. |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 6 | |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame] | 7 | See the file "Misc/COPYRIGHT" for information on usage and |
| 8 | redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 9 | ******************************************************************/ |
| 10 | |
| 11 | /* DBM module using dictionary interface */ |
| 12 | |
| 13 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 14 | #include "Python.h" |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 15 | |
| 16 | #include <sys/types.h> |
| 17 | #include <sys/stat.h> |
| 18 | #include <fcntl.h> |
| 19 | #include <ndbm.h> |
| 20 | |
| 21 | typedef struct { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 22 | PyObject_HEAD |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 23 | int di_size; /* -1 means recompute */ |
| 24 | DBM *di_dbm; |
| 25 | } dbmobject; |
| 26 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 27 | staticforward PyTypeObject Dbmtype; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 28 | |
| 29 | #define is_dbmobject(v) ((v)->ob_type == &Dbmtype) |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 30 | #define check_dbmobject_open(v) if ((v)->di_dbm == NULL) \ |
| 31 | { PyErr_SetString(DbmError, "DBM object has already been closed"); \ |
| 32 | return NULL; } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 33 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 34 | static PyObject *DbmError; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 35 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 36 | static PyObject * |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 37 | newdbmobject(file, flags, mode) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 38 | char *file; |
| 39 | int flags; |
| 40 | int mode; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 41 | { |
| 42 | dbmobject *dp; |
| 43 | |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 44 | dp = PyObject_New(dbmobject, &Dbmtype); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 45 | if (dp == NULL) |
| 46 | return NULL; |
| 47 | dp->di_size = -1; |
| 48 | if ( (dp->di_dbm = dbm_open(file, flags, mode)) == 0 ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 49 | PyErr_SetFromErrno(DbmError); |
| 50 | Py_DECREF(dp); |
| 51 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 52 | } |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 53 | return (PyObject *)dp; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 54 | } |
| 55 | |
| 56 | /* Methods */ |
| 57 | |
| 58 | static void |
| 59 | dbm_dealloc(dp) |
| 60 | register dbmobject *dp; |
| 61 | { |
| 62 | if ( dp->di_dbm ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 63 | dbm_close(dp->di_dbm); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 64 | PyObject_Del(dp); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | static int |
| 68 | dbm_length(dp) |
| 69 | dbmobject *dp; |
| 70 | { |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 71 | if (dp->di_dbm == NULL) { |
| 72 | PyErr_SetString(DbmError, "DBM object has already been closed"); |
| 73 | return -1; |
| 74 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 75 | if ( dp->di_size < 0 ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 76 | datum key; |
| 77 | int size; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 78 | |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 79 | size = 0; |
| 80 | for ( key=dbm_firstkey(dp->di_dbm); key.dptr; |
| 81 | key = dbm_nextkey(dp->di_dbm)) |
| 82 | size++; |
| 83 | dp->di_size = size; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 84 | } |
| 85 | return dp->di_size; |
| 86 | } |
| 87 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 88 | static PyObject * |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 89 | dbm_subscript(dp, key) |
| 90 | dbmobject *dp; |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 91 | register PyObject *key; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 92 | { |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 93 | datum drec, krec; |
| 94 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 95 | if (!PyArg_Parse(key, "s#", &krec.dptr, &krec.dsize) ) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 96 | return NULL; |
| 97 | |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 98 | check_dbmobject_open(dp); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 99 | drec = dbm_fetch(dp->di_dbm, krec); |
| 100 | if ( drec.dptr == 0 ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 101 | PyErr_SetString(PyExc_KeyError, |
| 102 | PyString_AS_STRING((PyStringObject *)key)); |
| 103 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 104 | } |
| 105 | if ( dbm_error(dp->di_dbm) ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 106 | dbm_clearerr(dp->di_dbm); |
| 107 | PyErr_SetString(DbmError, ""); |
| 108 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 109 | } |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 110 | return PyString_FromStringAndSize(drec.dptr, drec.dsize); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 111 | } |
| 112 | |
| 113 | static int |
| 114 | dbm_ass_sub(dp, v, w) |
| 115 | dbmobject *dp; |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 116 | PyObject *v, *w; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 117 | { |
| 118 | datum krec, drec; |
| 119 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 120 | if ( !PyArg_Parse(v, "s#", &krec.dptr, &krec.dsize) ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 121 | PyErr_SetString(PyExc_TypeError, |
| 122 | "dbm mappings have string indices only"); |
| 123 | return -1; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 124 | } |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 125 | if (dp->di_dbm == NULL) { |
| 126 | PyErr_SetString(DbmError, "DBM object has already been closed"); |
| 127 | return -1; |
| 128 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 129 | dp->di_size = -1; |
| 130 | if (w == NULL) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 131 | if ( dbm_delete(dp->di_dbm, krec) < 0 ) { |
| 132 | dbm_clearerr(dp->di_dbm); |
| 133 | PyErr_SetString(PyExc_KeyError, |
Roger E. Masse | bd4b961 | 1996-12-13 15:59:22 +0000 | [diff] [blame] | 134 | PyString_AS_STRING((PyStringObject *)v)); |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 135 | return -1; |
| 136 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 137 | } else { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 138 | if ( !PyArg_Parse(w, "s#", &drec.dptr, &drec.dsize) ) { |
| 139 | PyErr_SetString(PyExc_TypeError, |
Roger E. Masse | bd4b961 | 1996-12-13 15:59:22 +0000 | [diff] [blame] | 140 | "dbm mappings have string elements only"); |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 141 | return -1; |
| 142 | } |
| 143 | if ( dbm_store(dp->di_dbm, krec, drec, DBM_REPLACE) < 0 ) { |
| 144 | dbm_clearerr(dp->di_dbm); |
Roger E. Masse | bd4b961 | 1996-12-13 15:59:22 +0000 | [diff] [blame] | 145 | PyErr_SetString(DbmError, |
| 146 | "Cannot add item to database"); |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 147 | return -1; |
| 148 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 149 | } |
| 150 | if ( dbm_error(dp->di_dbm) ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 151 | dbm_clearerr(dp->di_dbm); |
| 152 | PyErr_SetString(DbmError, ""); |
| 153 | return -1; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 154 | } |
| 155 | return 0; |
| 156 | } |
| 157 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 158 | static PyMappingMethods dbm_as_mapping = { |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 159 | (inquiry)dbm_length, /*mp_length*/ |
| 160 | (binaryfunc)dbm_subscript, /*mp_subscript*/ |
| 161 | (objobjargproc)dbm_ass_sub, /*mp_ass_subscript*/ |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 162 | }; |
| 163 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 164 | static PyObject * |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 165 | dbm__close(dp, args) |
| 166 | register dbmobject *dp; |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 167 | PyObject *args; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 168 | { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 169 | if ( !PyArg_NoArgs(args) ) |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 170 | return NULL; |
| 171 | if ( dp->di_dbm ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 172 | dbm_close(dp->di_dbm); |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 173 | dp->di_dbm = NULL; |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 174 | Py_INCREF(Py_None); |
| 175 | return Py_None; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 176 | } |
| 177 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 178 | static PyObject * |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 179 | dbm_keys(dp, args) |
| 180 | register dbmobject *dp; |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 181 | PyObject *args; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 182 | { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 183 | register PyObject *v, *item; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 184 | datum key; |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 185 | int err; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 186 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 187 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 188 | return NULL; |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 189 | check_dbmobject_open(dp); |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 190 | v = PyList_New(0); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 191 | if (v == NULL) |
| 192 | return NULL; |
| 193 | for (key = dbm_firstkey(dp->di_dbm); key.dptr; |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 194 | key = dbm_nextkey(dp->di_dbm)) { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 195 | item = PyString_FromStringAndSize(key.dptr, key.dsize); |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 196 | if (item == NULL) { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 197 | Py_DECREF(v); |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 198 | return NULL; |
| 199 | } |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 200 | err = PyList_Append(v, item); |
| 201 | Py_DECREF(item); |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 202 | if (err != 0) { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 203 | Py_DECREF(v); |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 204 | return NULL; |
| 205 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 206 | } |
| 207 | return v; |
| 208 | } |
| 209 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 210 | static PyObject * |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 211 | dbm_has_key(dp, args) |
| 212 | register dbmobject *dp; |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 213 | PyObject *args; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 214 | { |
| 215 | datum key, val; |
| 216 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 217 | if (!PyArg_Parse(args, "s#", &key.dptr, &key.dsize)) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 218 | return NULL; |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 219 | check_dbmobject_open(dp); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 220 | val = dbm_fetch(dp->di_dbm, key); |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 221 | return PyInt_FromLong(val.dptr != NULL); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 222 | } |
| 223 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 224 | static PyMethodDef dbm_methods[] = { |
| 225 | {"close", (PyCFunction)dbm__close}, |
| 226 | {"keys", (PyCFunction)dbm_keys}, |
| 227 | {"has_key", (PyCFunction)dbm_has_key}, |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 228 | {NULL, NULL} /* sentinel */ |
| 229 | }; |
| 230 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 231 | static PyObject * |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 232 | dbm_getattr(dp, name) |
| 233 | dbmobject *dp; |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 234 | char *name; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 235 | { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 236 | return Py_FindMethod(dbm_methods, (PyObject *)dp, name); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 237 | } |
| 238 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 239 | static PyTypeObject Dbmtype = { |
| 240 | PyObject_HEAD_INIT(&PyType_Type) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 241 | 0, |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 242 | "dbm", |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 243 | sizeof(dbmobject), |
| 244 | 0, |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 245 | (destructor)dbm_dealloc, /*tp_dealloc*/ |
| 246 | 0, /*tp_print*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 247 | (getattrfunc)dbm_getattr, /*tp_getattr*/ |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 248 | 0, /*tp_setattr*/ |
| 249 | 0, /*tp_compare*/ |
| 250 | 0, /*tp_repr*/ |
| 251 | 0, /*tp_as_number*/ |
| 252 | 0, /*tp_as_sequence*/ |
| 253 | &dbm_as_mapping, /*tp_as_mapping*/ |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 254 | }; |
| 255 | |
| 256 | /* ----------------------------------------------------------------- */ |
| 257 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 258 | static PyObject * |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 259 | dbmopen(self, args) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 260 | PyObject *self; |
| 261 | PyObject *args; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 262 | { |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 263 | char *name; |
| 264 | char *flags = "r"; |
| 265 | int iflags; |
| 266 | int mode = 0666; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 267 | |
Guido van Rossum | 43713e5 | 2000-02-29 13:59:29 +0000 | [diff] [blame] | 268 | if ( !PyArg_ParseTuple(args, "s|si:open", &name, &flags, &mode) ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 269 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 270 | if ( strcmp(flags, "r") == 0 ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 271 | iflags = O_RDONLY; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 272 | else if ( strcmp(flags, "w") == 0 ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 273 | iflags = O_RDWR; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 274 | else if ( strcmp(flags, "rw") == 0 ) /* B/W compat */ |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 275 | iflags = O_RDWR|O_CREAT; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 276 | else if ( strcmp(flags, "c") == 0 ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 277 | iflags = O_RDWR|O_CREAT; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 278 | else if ( strcmp(flags, "n") == 0 ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 279 | iflags = O_RDWR|O_CREAT|O_TRUNC; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 280 | else { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 281 | PyErr_SetString(DbmError, |
| 282 | "Flags should be one of 'r', 'w', 'c' or 'n'"); |
| 283 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 284 | } |
| 285 | return newdbmobject(name, iflags, mode); |
| 286 | } |
| 287 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 288 | static PyMethodDef dbmmodule_methods[] = { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 289 | { "open", (PyCFunction)dbmopen, 1 }, |
| 290 | { 0, 0 }, |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 291 | }; |
| 292 | |
Guido van Rossum | 3886bb6 | 1998-12-04 18:50:17 +0000 | [diff] [blame] | 293 | DL_EXPORT(void) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 294 | initdbm() { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 295 | PyObject *m, *d; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 296 | |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 297 | m = Py_InitModule("dbm", dbmmodule_methods); |
| 298 | d = PyModule_GetDict(m); |
Guido van Rossum | 0cb96de | 1997-10-01 04:29:29 +0000 | [diff] [blame] | 299 | DbmError = PyErr_NewException("dbm.error", NULL, NULL); |
| 300 | if (DbmError != NULL) |
| 301 | PyDict_SetItemString(d, "error", DbmError); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 302 | } |