Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 6d023c9 | 1995-01-04 19:12:13 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame^] | 7 | Copyright (c) 2000, BeOpen.com. |
| 8 | Copyright (c) 1995-2000, Corporation for National Research Initiatives. |
| 9 | Copyright (c) 1990-1995, Stichting Mathematisch Centrum. |
| 10 | All rights reserved. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 11 | |
Guido van Rossum | fd71b9e | 2000-06-30 23:50:40 +0000 | [diff] [blame^] | 12 | See the file "Misc/COPYRIGHT" for information on usage and |
| 13 | redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 14 | |
| 15 | ******************************************************************/ |
| 16 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 17 | /* Error handling */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 18 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 19 | #include "Python.h" |
Guido van Rossum | f22120a | 1990-12-20 23:05:40 +0000 | [diff] [blame] | 20 | |
Jack Jansen | eceb3e3 | 1995-06-27 13:15:15 +0000 | [diff] [blame] | 21 | #ifdef SYMANTEC__CFM68K__ |
Guido van Rossum | e9fbc09 | 1995-02-18 14:52:19 +0000 | [diff] [blame] | 22 | #pragma lib_export on |
| 23 | #endif |
| 24 | |
Jack Jansen | 8fd2d94 | 1994-12-14 12:54:54 +0000 | [diff] [blame] | 25 | #ifdef macintosh |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 26 | extern char *PyMac_StrError Py_PROTO((int)); |
Jack Jansen | 5ef86d5 | 1995-01-19 12:16:44 +0000 | [diff] [blame] | 27 | #undef strerror |
Guido van Rossum | e9fbc09 | 1995-02-18 14:52:19 +0000 | [diff] [blame] | 28 | #define strerror PyMac_StrError |
| 29 | #endif /* macintosh */ |
| 30 | |
Guido van Rossum | 53e8d44 | 1995-03-09 12:11:31 +0000 | [diff] [blame] | 31 | #ifndef __STDC__ |
Guido van Rossum | 7844e38 | 1997-04-11 20:44:04 +0000 | [diff] [blame] | 32 | #ifndef MS_WINDOWS |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 33 | extern char *strerror Py_PROTO((int)); |
Guido van Rossum | 53e8d44 | 1995-03-09 12:11:31 +0000 | [diff] [blame] | 34 | #endif |
Guido van Rossum | 7844e38 | 1997-04-11 20:44:04 +0000 | [diff] [blame] | 35 | #endif |
Guido van Rossum | f5401bd | 1990-11-02 17:50:28 +0000 | [diff] [blame] | 36 | |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 37 | #ifdef MS_WIN32 |
| 38 | #include "windows.h" |
| 39 | #include "winbase.h" |
| 40 | #endif |
| 41 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 42 | void |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 43 | PyErr_Restore(type, value, traceback) |
| 44 | PyObject *type; |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 45 | PyObject *value; |
| 46 | PyObject *traceback; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 47 | { |
Guido van Rossum | 885553e | 1998-12-21 18:33:30 +0000 | [diff] [blame] | 48 | PyThreadState *tstate = PyThreadState_GET(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 49 | PyObject *oldtype, *oldvalue, *oldtraceback; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 50 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 51 | if (traceback != NULL && !PyTraceBack_Check(traceback)) { |
| 52 | /* XXX Should never happen -- fatal error instead? */ |
| 53 | Py_DECREF(traceback); |
| 54 | traceback = NULL; |
| 55 | } |
| 56 | |
| 57 | /* Save these in locals to safeguard against recursive |
| 58 | invocation through Py_XDECREF */ |
| 59 | oldtype = tstate->curexc_type; |
| 60 | oldvalue = tstate->curexc_value; |
| 61 | oldtraceback = tstate->curexc_traceback; |
| 62 | |
| 63 | tstate->curexc_type = type; |
| 64 | tstate->curexc_value = value; |
| 65 | tstate->curexc_traceback = traceback; |
| 66 | |
| 67 | Py_XDECREF(oldtype); |
| 68 | Py_XDECREF(oldvalue); |
| 69 | Py_XDECREF(oldtraceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 70 | } |
| 71 | |
| 72 | void |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 73 | PyErr_SetObject(exception, value) |
| 74 | PyObject *exception; |
| 75 | PyObject *value; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 76 | { |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 77 | Py_XINCREF(exception); |
| 78 | Py_XINCREF(value); |
| 79 | PyErr_Restore(exception, value, (PyObject *)NULL); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | void |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 83 | PyErr_SetNone(exception) |
| 84 | PyObject *exception; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 85 | { |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 86 | PyErr_SetObject(exception, (PyObject *)NULL); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 87 | } |
| 88 | |
| 89 | void |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 90 | PyErr_SetString(exception, string) |
| 91 | PyObject *exception; |
Guido van Rossum | 067998f | 1996-12-10 15:33:34 +0000 | [diff] [blame] | 92 | const char *string; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 93 | { |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 94 | PyObject *value = PyString_FromString(string); |
| 95 | PyErr_SetObject(exception, value); |
| 96 | Py_XDECREF(value); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 97 | } |
| 98 | |
Guido van Rossum | 3a24181 | 1994-08-29 12:14:12 +0000 | [diff] [blame] | 99 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 100 | PyObject * |
| 101 | PyErr_Occurred() |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 102 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 103 | PyThreadState *tstate = PyThreadState_Get(); |
| 104 | |
| 105 | return tstate->curexc_type; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 106 | } |
| 107 | |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 108 | |
| 109 | int |
| 110 | PyErr_GivenExceptionMatches(err, exc) |
| 111 | PyObject *err, *exc; |
| 112 | { |
Barry Warsaw | fa5c315 | 2000-05-02 19:27:51 +0000 | [diff] [blame] | 113 | if (err == NULL || exc == NULL) { |
| 114 | /* maybe caused by "import exceptions" that failed early on */ |
| 115 | return 0; |
| 116 | } |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 117 | if (PyTuple_Check(exc)) { |
| 118 | int i, n; |
| 119 | n = PyTuple_Size(exc); |
| 120 | for (i = 0; i < n; i++) { |
| 121 | /* Test recursively */ |
| 122 | if (PyErr_GivenExceptionMatches( |
| 123 | err, PyTuple_GET_ITEM(exc, i))) |
| 124 | { |
| 125 | return 1; |
| 126 | } |
| 127 | } |
| 128 | return 0; |
| 129 | } |
| 130 | /* err might be an instance, so check its class. */ |
| 131 | if (PyInstance_Check(err)) |
| 132 | err = (PyObject*)((PyInstanceObject*)err)->in_class; |
| 133 | |
| 134 | if (PyClass_Check(err) && PyClass_Check(exc)) |
| 135 | return PyClass_IsSubclass(err, exc); |
| 136 | |
| 137 | return err == exc; |
| 138 | } |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 139 | |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 140 | |
| 141 | int |
| 142 | PyErr_ExceptionMatches(exc) |
| 143 | PyObject *exc; |
| 144 | { |
| 145 | return PyErr_GivenExceptionMatches(PyErr_Occurred(), exc); |
| 146 | } |
| 147 | |
| 148 | |
| 149 | /* Used in many places to normalize a raised exception, including in |
| 150 | eval_code2(), do_raise(), and PyErr_Print() |
| 151 | */ |
| 152 | void |
| 153 | PyErr_NormalizeException(exc, val, tb) |
| 154 | PyObject **exc; |
| 155 | PyObject **val; |
| 156 | PyObject **tb; |
| 157 | { |
| 158 | PyObject *type = *exc; |
| 159 | PyObject *value = *val; |
| 160 | PyObject *inclass = NULL; |
| 161 | |
| 162 | /* If PyErr_SetNone() was used, the value will have been actually |
| 163 | set to NULL. |
| 164 | */ |
| 165 | if (!value) { |
| 166 | value = Py_None; |
| 167 | Py_INCREF(value); |
| 168 | } |
| 169 | |
| 170 | if (PyInstance_Check(value)) |
| 171 | inclass = (PyObject*)((PyInstanceObject*)value)->in_class; |
| 172 | |
| 173 | /* Normalize the exception so that if the type is a class, the |
| 174 | value will be an instance. |
| 175 | */ |
| 176 | if (PyClass_Check(type)) { |
| 177 | /* if the value was not an instance, or is not an instance |
| 178 | whose class is (or is derived from) type, then use the |
| 179 | value as an argument to instantiation of the type |
| 180 | class. |
| 181 | */ |
| 182 | if (!inclass || !PyClass_IsSubclass(inclass, type)) { |
| 183 | PyObject *args, *res; |
| 184 | |
| 185 | if (value == Py_None) |
| 186 | args = Py_BuildValue("()"); |
| 187 | else if (PyTuple_Check(value)) { |
| 188 | Py_INCREF(value); |
| 189 | args = value; |
| 190 | } |
| 191 | else |
| 192 | args = Py_BuildValue("(O)", value); |
| 193 | |
| 194 | if (args == NULL) |
| 195 | goto finally; |
| 196 | res = PyEval_CallObject(type, args); |
| 197 | Py_DECREF(args); |
| 198 | if (res == NULL) |
| 199 | goto finally; |
| 200 | Py_DECREF(value); |
| 201 | value = res; |
| 202 | } |
Barry Warsaw | 3a74993 | 1997-09-30 15:00:18 +0000 | [diff] [blame] | 203 | /* if the class of the instance doesn't exactly match the |
| 204 | class of the type, believe the instance |
| 205 | */ |
| 206 | else if (inclass != type) { |
| 207 | Py_DECREF(type); |
| 208 | type = inclass; |
| 209 | Py_INCREF(type); |
| 210 | } |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 211 | } |
| 212 | *exc = type; |
| 213 | *val = value; |
| 214 | return; |
| 215 | finally: |
Guido van Rossum | 19b55f2 | 1997-12-09 14:11:39 +0000 | [diff] [blame] | 216 | Py_DECREF(type); |
| 217 | Py_DECREF(value); |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 218 | Py_XDECREF(*tb); |
| 219 | PyErr_Fetch(exc, val, tb); |
| 220 | /* normalize recursively */ |
| 221 | PyErr_NormalizeException(exc, val, tb); |
| 222 | } |
| 223 | |
| 224 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 225 | void |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 226 | PyErr_Fetch(p_type, p_value, p_traceback) |
| 227 | PyObject **p_type; |
| 228 | PyObject **p_value; |
| 229 | PyObject **p_traceback; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 230 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 231 | PyThreadState *tstate = PyThreadState_Get(); |
| 232 | |
| 233 | *p_type = tstate->curexc_type; |
| 234 | *p_value = tstate->curexc_value; |
| 235 | *p_traceback = tstate->curexc_traceback; |
| 236 | |
| 237 | tstate->curexc_type = NULL; |
| 238 | tstate->curexc_value = NULL; |
| 239 | tstate->curexc_traceback = NULL; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 240 | } |
| 241 | |
| 242 | void |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 243 | PyErr_Clear() |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 244 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 245 | PyErr_Restore(NULL, NULL, NULL); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 246 | } |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 247 | |
| 248 | /* Convenience functions to set a type error exception and return 0 */ |
| 249 | |
| 250 | int |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 251 | PyErr_BadArgument() |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 252 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 253 | PyErr_SetString(PyExc_TypeError, |
| 254 | "illegal argument type for built-in operation"); |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 255 | return 0; |
| 256 | } |
| 257 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 258 | PyObject * |
| 259 | PyErr_NoMemory() |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 260 | { |
Barry Warsaw | 2d8adff | 1997-08-29 21:54:35 +0000 | [diff] [blame] | 261 | /* raise the pre-allocated instance if it still exists */ |
| 262 | if (PyExc_MemoryErrorInst) |
| 263 | PyErr_SetObject(PyExc_MemoryError, PyExc_MemoryErrorInst); |
| 264 | else |
| 265 | /* this will probably fail since there's no memory and hee, |
| 266 | hee, we have to instantiate this class |
| 267 | */ |
| 268 | PyErr_SetNone(PyExc_MemoryError); |
| 269 | |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 270 | return NULL; |
| 271 | } |
| 272 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 273 | PyObject * |
Barry Warsaw | 97d9515 | 1998-07-23 16:05:56 +0000 | [diff] [blame] | 274 | PyErr_SetFromErrnoWithFilename(exc, filename) |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 275 | PyObject *exc; |
Barry Warsaw | 97d9515 | 1998-07-23 16:05:56 +0000 | [diff] [blame] | 276 | char *filename; |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 277 | { |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 278 | PyObject *v; |
Guido van Rossum | e0e5982 | 1998-10-14 20:38:13 +0000 | [diff] [blame] | 279 | char *s; |
Guido van Rossum | 3a24181 | 1994-08-29 12:14:12 +0000 | [diff] [blame] | 280 | int i = errno; |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 281 | #ifdef MS_WIN32 |
| 282 | char *s_buf = NULL; |
| 283 | #endif |
Guido van Rossum | e9fbc09 | 1995-02-18 14:52:19 +0000 | [diff] [blame] | 284 | #ifdef EINTR |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 285 | if (i == EINTR && PyErr_CheckSignals()) |
Guido van Rossum | 5063bab | 1991-10-20 20:14:56 +0000 | [diff] [blame] | 286 | return NULL; |
Guido van Rossum | e9fbc09 | 1995-02-18 14:52:19 +0000 | [diff] [blame] | 287 | #endif |
Guido van Rossum | e0e5982 | 1998-10-14 20:38:13 +0000 | [diff] [blame] | 288 | if (i == 0) |
| 289 | s = "Error"; /* Sometimes errno didn't get set */ |
Barry Warsaw | 97d9515 | 1998-07-23 16:05:56 +0000 | [diff] [blame] | 290 | else |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 291 | #ifndef MS_WIN32 |
Guido van Rossum | e0e5982 | 1998-10-14 20:38:13 +0000 | [diff] [blame] | 292 | s = strerror(i); |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 293 | #else |
| 294 | { |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 295 | /* Note that the Win32 errors do not lineup with the |
| 296 | errno error. So if the error is in the MSVC error |
| 297 | table, we use it, otherwise we assume it really _is_ |
| 298 | a Win32 error code |
| 299 | */ |
Guido van Rossum | 584b16a | 2000-02-21 16:50:31 +0000 | [diff] [blame] | 300 | if (i > 0 && i < _sys_nerr) { |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 301 | s = _sys_errlist[i]; |
| 302 | } |
| 303 | else { |
| 304 | int len = FormatMessage( |
| 305 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| 306 | FORMAT_MESSAGE_FROM_SYSTEM | |
| 307 | FORMAT_MESSAGE_IGNORE_INSERTS, |
| 308 | NULL, /* no message source */ |
| 309 | i, |
| 310 | MAKELANGID(LANG_NEUTRAL, |
| 311 | SUBLANG_DEFAULT), |
| 312 | /* Default language */ |
| 313 | (LPTSTR) &s_buf, |
| 314 | 0, /* size not used */ |
| 315 | NULL); /* no args */ |
| 316 | s = s_buf; |
| 317 | /* remove trailing cr/lf and dots */ |
| 318 | while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.')) |
| 319 | s[--len] = '\0'; |
| 320 | } |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 321 | } |
| 322 | #endif |
Barry Warsaw | fa5c315 | 2000-05-02 19:27:51 +0000 | [diff] [blame] | 323 | if (filename != NULL) |
Guido van Rossum | e0e5982 | 1998-10-14 20:38:13 +0000 | [diff] [blame] | 324 | v = Py_BuildValue("(iss)", i, s, filename); |
| 325 | else |
| 326 | v = Py_BuildValue("(is)", i, s); |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 327 | if (v != NULL) { |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 328 | PyErr_SetObject(exc, v); |
| 329 | Py_DECREF(v); |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 330 | } |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 331 | #ifdef MS_WIN32 |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 332 | LocalFree(s_buf); |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 333 | #endif |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 334 | return NULL; |
| 335 | } |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 336 | |
Barry Warsaw | 97d9515 | 1998-07-23 16:05:56 +0000 | [diff] [blame] | 337 | |
| 338 | PyObject * |
| 339 | PyErr_SetFromErrno(exc) |
| 340 | PyObject *exc; |
| 341 | { |
| 342 | return PyErr_SetFromErrnoWithFilename(exc, NULL); |
| 343 | } |
Guido van Rossum | 683a072 | 1990-10-21 22:09:12 +0000 | [diff] [blame] | 344 | |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 345 | #ifdef MS_WINDOWS |
| 346 | /* Windows specific error code handling */ |
| 347 | PyObject *PyErr_SetFromWindowsErrWithFilename( |
| 348 | int ierr, |
| 349 | const char *filename) |
| 350 | { |
| 351 | int len; |
| 352 | char *s; |
| 353 | PyObject *v; |
| 354 | DWORD err = (DWORD)ierr; |
| 355 | if (err==0) err = GetLastError(); |
| 356 | len = FormatMessage( |
| 357 | /* Error API error */ |
| 358 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| 359 | FORMAT_MESSAGE_FROM_SYSTEM | |
| 360 | FORMAT_MESSAGE_IGNORE_INSERTS, |
| 361 | NULL, /* no message source */ |
| 362 | err, |
| 363 | MAKELANGID(LANG_NEUTRAL, |
| 364 | SUBLANG_DEFAULT), /* Default language */ |
| 365 | (LPTSTR) &s, |
| 366 | 0, /* size not used */ |
| 367 | NULL); /* no args */ |
| 368 | /* remove trailing cr/lf and dots */ |
| 369 | while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.')) |
| 370 | s[--len] = '\0'; |
Barry Warsaw | fa5c315 | 2000-05-02 19:27:51 +0000 | [diff] [blame] | 371 | if (filename != NULL) |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 372 | v = Py_BuildValue("(iss)", err, s, filename); |
| 373 | else |
| 374 | v = Py_BuildValue("(is)", err, s); |
| 375 | if (v != NULL) { |
Guido van Rossum | 0b55670 | 2000-03-02 13:55:01 +0000 | [diff] [blame] | 376 | PyErr_SetObject(PyExc_WindowsError, v); |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 377 | Py_DECREF(v); |
| 378 | } |
| 379 | LocalFree(s); |
| 380 | return NULL; |
| 381 | } |
| 382 | |
| 383 | PyObject *PyErr_SetFromWindowsErr(int ierr) |
| 384 | { |
| 385 | return PyErr_SetFromWindowsErrWithFilename(ierr, NULL); |
| 386 | |
| 387 | } |
| 388 | #endif /* MS_WINDOWS */ |
| 389 | |
Guido van Rossum | 683a072 | 1990-10-21 22:09:12 +0000 | [diff] [blame] | 390 | void |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 391 | PyErr_BadInternalCall() |
Guido van Rossum | 683a072 | 1990-10-21 22:09:12 +0000 | [diff] [blame] | 392 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 393 | PyErr_SetString(PyExc_SystemError, |
| 394 | "bad argument to internal function"); |
Guido van Rossum | 683a072 | 1990-10-21 22:09:12 +0000 | [diff] [blame] | 395 | } |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 396 | |
| 397 | |
| 398 | #ifdef HAVE_STDARG_PROTOTYPES |
| 399 | PyObject * |
| 400 | PyErr_Format(PyObject *exception, const char *format, ...) |
| 401 | #else |
| 402 | PyObject * |
| 403 | PyErr_Format(exception, format, va_alist) |
| 404 | PyObject *exception; |
| 405 | const char *format; |
| 406 | va_dcl |
| 407 | #endif |
| 408 | { |
| 409 | va_list vargs; |
| 410 | char buffer[500]; /* Caller is responsible for limiting the format */ |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 411 | |
| 412 | #ifdef HAVE_STDARG_PROTOTYPES |
| 413 | va_start(vargs, format); |
| 414 | #else |
| 415 | va_start(vargs); |
| 416 | #endif |
| 417 | |
| 418 | vsprintf(buffer, format, vargs); |
| 419 | PyErr_SetString(exception, buffer); |
| 420 | return NULL; |
| 421 | } |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 422 | |
| 423 | |
| 424 | PyObject * |
| 425 | PyErr_NewException(name, base, dict) |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 426 | char *name; /* modulename.classname */ |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 427 | PyObject *base; |
| 428 | PyObject *dict; |
| 429 | { |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 430 | char *dot; |
| 431 | PyObject *modulename = NULL; |
| 432 | PyObject *classname = NULL; |
| 433 | PyObject *mydict = NULL; |
| 434 | PyObject *bases = NULL; |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 435 | PyObject *result = NULL; |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 436 | dot = strrchr(name, '.'); |
| 437 | if (dot == NULL) { |
| 438 | PyErr_SetString(PyExc_SystemError, |
| 439 | "PyErr_NewException: name must be module.class"); |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 440 | return NULL; |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 441 | } |
| 442 | if (base == NULL) |
| 443 | base = PyExc_Exception; |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 444 | if (!PyClass_Check(base)) { |
| 445 | /* Must be using string-based standard exceptions (-X) */ |
| 446 | return PyString_FromString(name); |
| 447 | } |
| 448 | if (dict == NULL) { |
| 449 | dict = mydict = PyDict_New(); |
| 450 | if (dict == NULL) |
| 451 | goto failure; |
| 452 | } |
| 453 | if (PyDict_GetItemString(dict, "__module__") == NULL) { |
| 454 | modulename = PyString_FromStringAndSize(name, (int)(dot-name)); |
| 455 | if (modulename == NULL) |
| 456 | goto failure; |
| 457 | if (PyDict_SetItemString(dict, "__module__", modulename) != 0) |
| 458 | goto failure; |
| 459 | } |
| 460 | classname = PyString_FromString(dot+1); |
| 461 | if (classname == NULL) |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 462 | goto failure; |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 463 | bases = Py_BuildValue("(O)", base); |
| 464 | if (bases == NULL) |
| 465 | goto failure; |
| 466 | result = PyClass_New(bases, dict, classname); |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 467 | failure: |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 468 | Py_XDECREF(bases); |
| 469 | Py_XDECREF(mydict); |
| 470 | Py_XDECREF(classname); |
| 471 | Py_XDECREF(modulename); |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 472 | return result; |
| 473 | } |