Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 1 | |
| 2 | /* DBM module using dictionary interface */ |
| 3 | |
| 4 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 5 | #include "Python.h" |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 6 | |
| 7 | #include <sys/types.h> |
| 8 | #include <sys/stat.h> |
| 9 | #include <fcntl.h> |
Fred Drake | d94f707 | 2000-09-14 15:48:06 +0000 | [diff] [blame] | 10 | |
| 11 | /* Some Linux systems install gdbm/ndbm.h, but not ndbm.h. This supports |
| 12 | * whichever configure was able to locate. |
| 13 | */ |
| 14 | #if defined(HAVE_NDBM_H) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 15 | #include <ndbm.h> |
Fred Drake | ae90f8d | 2000-09-15 03:38:12 +0000 | [diff] [blame^] | 16 | #elif defined(HAVE_DB1_NDBM_H) |
| 17 | #include <db1/ndbm.h> |
Fred Drake | d94f707 | 2000-09-14 15:48:06 +0000 | [diff] [blame] | 18 | #elif defined(HAVE_GDBM_NDBM_H) |
| 19 | #include <gdbm/ndbm.h> |
| 20 | #else |
| 21 | #error "No ndbm.h available!" |
| 22 | #endif |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 23 | |
| 24 | typedef struct { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 25 | PyObject_HEAD |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 26 | int di_size; /* -1 means recompute */ |
| 27 | DBM *di_dbm; |
| 28 | } dbmobject; |
| 29 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 30 | staticforward PyTypeObject Dbmtype; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 31 | |
| 32 | #define is_dbmobject(v) ((v)->ob_type == &Dbmtype) |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 33 | #define check_dbmobject_open(v) if ((v)->di_dbm == NULL) \ |
| 34 | { PyErr_SetString(DbmError, "DBM object has already been closed"); \ |
| 35 | return NULL; } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 36 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 37 | static PyObject *DbmError; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 38 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 39 | static PyObject * |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 40 | newdbmobject(char *file, int flags, 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 |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 59 | dbm_dealloc(register dbmobject *dp) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 60 | { |
| 61 | if ( dp->di_dbm ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 62 | dbm_close(dp->di_dbm); |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 63 | PyObject_Del(dp); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 64 | } |
| 65 | |
| 66 | static int |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 67 | dbm_length(dbmobject *dp) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 68 | { |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 69 | if (dp->di_dbm == NULL) { |
| 70 | PyErr_SetString(DbmError, "DBM object has already been closed"); |
| 71 | return -1; |
| 72 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 73 | if ( dp->di_size < 0 ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 74 | datum key; |
| 75 | int size; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 76 | |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 77 | size = 0; |
| 78 | for ( key=dbm_firstkey(dp->di_dbm); key.dptr; |
| 79 | key = dbm_nextkey(dp->di_dbm)) |
| 80 | size++; |
| 81 | dp->di_size = size; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 82 | } |
| 83 | return dp->di_size; |
| 84 | } |
| 85 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 86 | static PyObject * |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 87 | dbm_subscript(dbmobject *dp, register PyObject *key) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 88 | { |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 89 | datum drec, krec; |
| 90 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 91 | if (!PyArg_Parse(key, "s#", &krec.dptr, &krec.dsize) ) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 92 | return NULL; |
| 93 | |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 94 | check_dbmobject_open(dp); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 95 | drec = dbm_fetch(dp->di_dbm, krec); |
| 96 | if ( drec.dptr == 0 ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 97 | PyErr_SetString(PyExc_KeyError, |
| 98 | PyString_AS_STRING((PyStringObject *)key)); |
| 99 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 100 | } |
| 101 | if ( dbm_error(dp->di_dbm) ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 102 | dbm_clearerr(dp->di_dbm); |
| 103 | PyErr_SetString(DbmError, ""); |
| 104 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 105 | } |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 106 | return PyString_FromStringAndSize(drec.dptr, drec.dsize); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 107 | } |
| 108 | |
| 109 | static int |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 110 | dbm_ass_sub(dbmobject *dp, PyObject *v, PyObject *w) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 111 | { |
| 112 | datum krec, drec; |
| 113 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 114 | if ( !PyArg_Parse(v, "s#", &krec.dptr, &krec.dsize) ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 115 | PyErr_SetString(PyExc_TypeError, |
| 116 | "dbm mappings have string indices only"); |
| 117 | return -1; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 118 | } |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 119 | if (dp->di_dbm == NULL) { |
| 120 | PyErr_SetString(DbmError, "DBM object has already been closed"); |
| 121 | return -1; |
| 122 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 123 | dp->di_size = -1; |
| 124 | if (w == NULL) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 125 | if ( dbm_delete(dp->di_dbm, krec) < 0 ) { |
| 126 | dbm_clearerr(dp->di_dbm); |
| 127 | PyErr_SetString(PyExc_KeyError, |
Roger E. Masse | bd4b961 | 1996-12-13 15:59:22 +0000 | [diff] [blame] | 128 | PyString_AS_STRING((PyStringObject *)v)); |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 129 | return -1; |
| 130 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 131 | } else { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 132 | if ( !PyArg_Parse(w, "s#", &drec.dptr, &drec.dsize) ) { |
| 133 | PyErr_SetString(PyExc_TypeError, |
Roger E. Masse | bd4b961 | 1996-12-13 15:59:22 +0000 | [diff] [blame] | 134 | "dbm mappings have string elements only"); |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 135 | return -1; |
| 136 | } |
| 137 | if ( dbm_store(dp->di_dbm, krec, drec, DBM_REPLACE) < 0 ) { |
| 138 | dbm_clearerr(dp->di_dbm); |
Roger E. Masse | bd4b961 | 1996-12-13 15:59:22 +0000 | [diff] [blame] | 139 | PyErr_SetString(DbmError, |
| 140 | "Cannot add item to database"); |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 141 | return -1; |
| 142 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 143 | } |
| 144 | if ( dbm_error(dp->di_dbm) ) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 145 | dbm_clearerr(dp->di_dbm); |
| 146 | PyErr_SetString(DbmError, ""); |
| 147 | return -1; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 148 | } |
| 149 | return 0; |
| 150 | } |
| 151 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 152 | static PyMappingMethods dbm_as_mapping = { |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 153 | (inquiry)dbm_length, /*mp_length*/ |
| 154 | (binaryfunc)dbm_subscript, /*mp_subscript*/ |
| 155 | (objobjargproc)dbm_ass_sub, /*mp_ass_subscript*/ |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 156 | }; |
| 157 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 158 | static PyObject * |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 159 | dbm__close(register dbmobject *dp, PyObject *args) |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 160 | { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 161 | if ( !PyArg_NoArgs(args) ) |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 162 | return NULL; |
| 163 | if ( dp->di_dbm ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 164 | dbm_close(dp->di_dbm); |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 165 | dp->di_dbm = NULL; |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 166 | Py_INCREF(Py_None); |
| 167 | return Py_None; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 168 | } |
| 169 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 170 | static PyObject * |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 171 | dbm_keys(register dbmobject *dp, PyObject *args) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 172 | { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 173 | register PyObject *v, *item; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 174 | datum key; |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 175 | int err; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 176 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 177 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 178 | return NULL; |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 179 | check_dbmobject_open(dp); |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 180 | v = PyList_New(0); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 181 | if (v == NULL) |
| 182 | return NULL; |
| 183 | for (key = dbm_firstkey(dp->di_dbm); key.dptr; |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 184 | key = dbm_nextkey(dp->di_dbm)) { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 185 | item = PyString_FromStringAndSize(key.dptr, key.dsize); |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 186 | if (item == NULL) { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 187 | Py_DECREF(v); |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 188 | return NULL; |
| 189 | } |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 190 | err = PyList_Append(v, item); |
| 191 | Py_DECREF(item); |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 192 | if (err != 0) { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 193 | Py_DECREF(v); |
Guido van Rossum | d503913 | 1995-01-30 12:45:38 +0000 | [diff] [blame] | 194 | return NULL; |
| 195 | } |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 196 | } |
| 197 | return v; |
| 198 | } |
| 199 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 200 | static PyObject * |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 201 | dbm_has_key(register dbmobject *dp, PyObject *args) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 202 | { |
| 203 | datum key, val; |
| 204 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 205 | if (!PyArg_Parse(args, "s#", &key.dptr, &key.dsize)) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 206 | return NULL; |
Guido van Rossum | 77eecfa | 1997-07-17 22:56:01 +0000 | [diff] [blame] | 207 | check_dbmobject_open(dp); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 208 | val = dbm_fetch(dp->di_dbm, key); |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 209 | return PyInt_FromLong(val.dptr != NULL); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 210 | } |
| 211 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 212 | static PyMethodDef dbm_methods[] = { |
| 213 | {"close", (PyCFunction)dbm__close}, |
| 214 | {"keys", (PyCFunction)dbm_keys}, |
| 215 | {"has_key", (PyCFunction)dbm_has_key}, |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 216 | {NULL, NULL} /* sentinel */ |
| 217 | }; |
| 218 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 219 | static PyObject * |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 220 | dbm_getattr(dbmobject *dp, char *name) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 221 | { |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 222 | return Py_FindMethod(dbm_methods, (PyObject *)dp, name); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 223 | } |
| 224 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 225 | static PyTypeObject Dbmtype = { |
| 226 | PyObject_HEAD_INIT(&PyType_Type) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 227 | 0, |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 228 | "dbm", |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 229 | sizeof(dbmobject), |
| 230 | 0, |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 231 | (destructor)dbm_dealloc, /*tp_dealloc*/ |
| 232 | 0, /*tp_print*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 233 | (getattrfunc)dbm_getattr, /*tp_getattr*/ |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 234 | 0, /*tp_setattr*/ |
| 235 | 0, /*tp_compare*/ |
| 236 | 0, /*tp_repr*/ |
| 237 | 0, /*tp_as_number*/ |
| 238 | 0, /*tp_as_sequence*/ |
| 239 | &dbm_as_mapping, /*tp_as_mapping*/ |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 240 | }; |
| 241 | |
| 242 | /* ----------------------------------------------------------------- */ |
| 243 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 244 | static PyObject * |
Peter Schneider-Kamp | cb27c35 | 2000-07-10 17:06:38 +0000 | [diff] [blame] | 245 | dbmopen(PyObject *self, PyObject *args) |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 246 | { |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 247 | char *name; |
| 248 | char *flags = "r"; |
| 249 | int iflags; |
| 250 | int mode = 0666; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 251 | |
Guido van Rossum | 43713e5 | 2000-02-29 13:59:29 +0000 | [diff] [blame] | 252 | if ( !PyArg_ParseTuple(args, "s|si:open", &name, &flags, &mode) ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 253 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 254 | if ( strcmp(flags, "r") == 0 ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 255 | iflags = O_RDONLY; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 256 | else if ( strcmp(flags, "w") == 0 ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 257 | iflags = O_RDWR; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 258 | else if ( strcmp(flags, "rw") == 0 ) /* B/W compat */ |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 259 | iflags = O_RDWR|O_CREAT; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 260 | else if ( strcmp(flags, "c") == 0 ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 261 | iflags = O_RDWR|O_CREAT; |
Guido van Rossum | 807b7be | 1995-07-07 22:37:11 +0000 | [diff] [blame] | 262 | else if ( strcmp(flags, "n") == 0 ) |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 263 | iflags = O_RDWR|O_CREAT|O_TRUNC; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 264 | else { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 265 | PyErr_SetString(DbmError, |
| 266 | "Flags should be one of 'r', 'w', 'c' or 'n'"); |
| 267 | return NULL; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 268 | } |
| 269 | return newdbmobject(name, iflags, mode); |
| 270 | } |
| 271 | |
Roger E. Masse | b0dfe96 | 1996-12-10 00:07:00 +0000 | [diff] [blame] | 272 | static PyMethodDef dbmmodule_methods[] = { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 273 | { "open", (PyCFunction)dbmopen, 1 }, |
| 274 | { 0, 0 }, |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 275 | }; |
| 276 | |
Guido van Rossum | 3886bb6 | 1998-12-04 18:50:17 +0000 | [diff] [blame] | 277 | DL_EXPORT(void) |
Thomas Wouters | 58d0510 | 2000-07-24 14:43:35 +0000 | [diff] [blame] | 278 | initdbm(void) { |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 279 | PyObject *m, *d; |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 280 | |
Roger E. Masse | e7ee8c3 | 1996-12-13 15:55:22 +0000 | [diff] [blame] | 281 | m = Py_InitModule("dbm", dbmmodule_methods); |
| 282 | d = PyModule_GetDict(m); |
Guido van Rossum | 0cb96de | 1997-10-01 04:29:29 +0000 | [diff] [blame] | 283 | DbmError = PyErr_NewException("dbm.error", NULL, NULL); |
| 284 | if (DbmError != NULL) |
| 285 | PyDict_SetItemString(d, "error", DbmError); |
Guido van Rossum | dd9ed83 | 1992-06-29 17:10:40 +0000 | [diff] [blame] | 286 | } |