annotate Python/errors.c @ 12559:3b8d9e63e4e1 legacy-trunk

PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and return 0 (exceptions don't match). This means that if an ImportError is raised because exceptions.py can't be imported, the interpreter will exit "cleanly" with an error message instead of just core dumping. PyErr_SetFromErrnoWithFilename(), PyErr_SetFromWindowsErrWithFilename(): Don't test on Py_UseClassExceptionsFlag.
author Barry Warsaw <barry@python.org>
date Tue, 02 May 2000 19:27:51 +0000
parents 723efcdcce1b
children 916fb024ce94
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
145
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
1 /***********************************************************
2062
d0d0a69b5ca3 Added 1995 to copyright message.
Guido van Rossum <guido@python.org>
parents: 2052
diff changeset
2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
d0d0a69b5ca3 Added 1995 to copyright message.
Guido van Rossum <guido@python.org>
parents: 2052
diff changeset
3 The Netherlands.
145
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
4
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
5 All Rights Reserved
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
6
4503
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
7 Permission to use, copy, modify, and distribute this software and its
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
8 documentation for any purpose and without fee is hereby granted,
145
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
9 provided that the above copyright notice appear in all copies and that
4503
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
10 both that copyright notice and this permission notice appear in
145
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
11 supporting documentation, and that the names of Stichting Mathematisch
4503
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
12 Centrum or CWI or Corporation for National Research Initiatives or
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
13 CNRI not be used in advertising or publicity pertaining to
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
14 distribution of the software without specific, written prior
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
15 permission.
145
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
16
4503
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
17 While CWI is the initial source for this software, a modified version
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
18 is made available by the Corporation for National Research Initiatives
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
19 (CNRI) at the Internet address ftp://ftp.python.org.
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
20
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
65d2d8e67da3 New permission notice, includes CNRI.
Guido van Rossum <guido@python.org>
parents: 3100
diff changeset
28 PERFORMANCE OF THIS SOFTWARE.
145
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
29
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
30 ******************************************************************/
853b736a6a9e Added copyright notice.
Guido van Rossum <guido@python.org>
parents: 90
diff changeset
31
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
32 /* Error handling */
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
33
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
34 #include "Python.h"
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 66
diff changeset
35
2793
b8937e74fdf5 Porting to CW CFM68K
Jack Jansen <jack.jansen@cwi.nl>
parents: 2502
diff changeset
36 #ifdef SYMANTEC__CFM68K__
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
37 #pragma lib_export on
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
38 #endif
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
39
2019
9e3469c0ed75 Added hook for better mac error messages.
Jack Jansen <jack.jansen@cwi.nl>
parents: 2003
diff changeset
40 #ifdef macintosh
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
41 extern char *PyMac_StrError Py_PROTO((int));
2190
b40e10bda231 Undef strerror on the mac before redefining it
Jack Jansen <jack.jansen@cwi.nl>
parents: 2062
diff changeset
42 #undef strerror
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
43 #define strerror PyMac_StrError
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
44 #endif /* macintosh */
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
45
2502
d5978238e3ba changes in NT tests
Guido van Rossum <guido@python.org>
parents: 2376
diff changeset
46 #ifndef __STDC__
5318
2c4b802a3b5d Keep Microsoft VC happy.
Guido van Rossum <guido@python.org>
parents: 5312
diff changeset
47 #ifndef MS_WINDOWS
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
48 extern char *strerror Py_PROTO((int));
2502
d5978238e3ba changes in NT tests
Guido van Rossum <guido@python.org>
parents: 2376
diff changeset
49 #endif
5318
2c4b802a3b5d Keep Microsoft VC happy.
Guido van Rossum <guido@python.org>
parents: 5312
diff changeset
50 #endif
59
433f52d1d958 Added prototype for strerror.
Guido van Rossum <guido@python.org>
parents: 37
diff changeset
51
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
52 #ifdef MS_WIN32
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
53 #include "windows.h"
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
54 #include "winbase.h"
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
55 #endif
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
56
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
57 void
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
58 PyErr_Restore(type, value, traceback)
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
59 PyObject *type;
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
60 PyObject *value;
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
61 PyObject *traceback;
2052
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 2019
diff changeset
62 {
9671
1d40bc25703a Use PyThreadState_GET() macro.
Guido van Rossum <guido@python.org>
parents: 9365
diff changeset
63 PyThreadState *tstate = PyThreadState_GET();
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
64 PyObject *oldtype, *oldvalue, *oldtraceback;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
65
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
66 if (traceback != NULL && !PyTraceBack_Check(traceback)) {
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
67 /* XXX Should never happen -- fatal error instead? */
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
68 Py_DECREF(traceback);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
69 traceback = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
70 }
2052
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 2019
diff changeset
71
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
72 /* Save these in locals to safeguard against recursive
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
73 invocation through Py_XDECREF */
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
74 oldtype = tstate->curexc_type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
75 oldvalue = tstate->curexc_value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
76 oldtraceback = tstate->curexc_traceback;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
77
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
78 tstate->curexc_type = type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
79 tstate->curexc_value = value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
80 tstate->curexc_traceback = traceback;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
81
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
82 Py_XDECREF(oldtype);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
83 Py_XDECREF(oldvalue);
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
84 Py_XDECREF(oldtraceback);
2052
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 2019
diff changeset
85 }
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 2019
diff changeset
86
d7e91437f0a2 Lots of changes, most minor (fatal() instead of abort(), use of
Guido van Rossum <guido@python.org>
parents: 2019
diff changeset
87 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
88 PyErr_SetObject(exception, value)
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
89 PyObject *exception;
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
90 PyObject *value;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
91 {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
92 Py_XINCREF(exception);
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
93 Py_XINCREF(value);
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
94 PyErr_Restore(exception, value, (PyObject *)NULL);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
95 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
96
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
97 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
98 PyErr_SetNone(exception)
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
99 PyObject *exception;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
100 {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
101 PyErr_SetObject(exception, (PyObject *)NULL);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
102 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
103
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
104 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
105 PyErr_SetString(exception, string)
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
106 PyObject *exception;
4654
df81856db58c Add const to error and newstring functions
Guido van Rossum <guido@python.org>
parents: 4503
diff changeset
107 const char *string;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
108 {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
109 PyObject *value = PyString_FromString(string);
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
110 PyErr_SetObject(exception, value);
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
111 Py_XDECREF(value);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
112 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
113
1832
79e420805c67 err_clear: clear interpreter stack trace
Guido van Rossum <guido@python.org>
parents: 1319
diff changeset
114
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
115 PyObject *
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
116 PyErr_Occurred()
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
117 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
118 PyThreadState *tstate = PyThreadState_Get();
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
119
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
120 return tstate->curexc_type;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
121 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
122
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
123
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
124 int
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
125 PyErr_GivenExceptionMatches(err, exc)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
126 PyObject *err, *exc;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
127 {
12559
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
128 if (err == NULL || exc == NULL) {
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
129 /* maybe caused by "import exceptions" that failed early on */
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
130 return 0;
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
131 }
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
132 if (PyTuple_Check(exc)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
133 int i, n;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
134 n = PyTuple_Size(exc);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
135 for (i = 0; i < n; i++) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
136 /* Test recursively */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
137 if (PyErr_GivenExceptionMatches(
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
138 err, PyTuple_GET_ITEM(exc, i)))
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
139 {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
140 return 1;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
141 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
142 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
143 return 0;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
144 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
145 /* err might be an instance, so check its class. */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
146 if (PyInstance_Check(err))
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
147 err = (PyObject*)((PyInstanceObject*)err)->in_class;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
148
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
149 if (PyClass_Check(err) && PyClass_Check(exc))
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
150 return PyClass_IsSubclass(err, exc);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
151
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
152 return err == exc;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
153 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
154
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
155
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
156 int
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
157 PyErr_ExceptionMatches(exc)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
158 PyObject *exc;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
159 {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
160 return PyErr_GivenExceptionMatches(PyErr_Occurred(), exc);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
161 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
162
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
163
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
164 /* Used in many places to normalize a raised exception, including in
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
165 eval_code2(), do_raise(), and PyErr_Print()
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
166 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
167 void
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
168 PyErr_NormalizeException(exc, val, tb)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
169 PyObject **exc;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
170 PyObject **val;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
171 PyObject **tb;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
172 {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
173 PyObject *type = *exc;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
174 PyObject *value = *val;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
175 PyObject *inclass = NULL;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
176
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
177 /* If PyErr_SetNone() was used, the value will have been actually
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
178 set to NULL.
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
179 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
180 if (!value) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
181 value = Py_None;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
182 Py_INCREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
183 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
184
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
185 if (PyInstance_Check(value))
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
186 inclass = (PyObject*)((PyInstanceObject*)value)->in_class;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
187
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
188 /* Normalize the exception so that if the type is a class, the
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
189 value will be an instance.
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
190 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
191 if (PyClass_Check(type)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
192 /* if the value was not an instance, or is not an instance
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
193 whose class is (or is derived from) type, then use the
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
194 value as an argument to instantiation of the type
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
195 class.
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
196 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
197 if (!inclass || !PyClass_IsSubclass(inclass, type)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
198 PyObject *args, *res;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
199
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
200 if (value == Py_None)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
201 args = Py_BuildValue("()");
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
202 else if (PyTuple_Check(value)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
203 Py_INCREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
204 args = value;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
205 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
206 else
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
207 args = Py_BuildValue("(O)", value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
208
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
209 if (args == NULL)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
210 goto finally;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
211 res = PyEval_CallObject(type, args);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
212 Py_DECREF(args);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
213 if (res == NULL)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
214 goto finally;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
215 Py_DECREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
216 value = res;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
217 }
6358
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
218 /* if the class of the instance doesn't exactly match the
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
219 class of the type, believe the instance
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
220 */
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
221 else if (inclass != type) {
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
222 Py_DECREF(type);
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
223 type = inclass;
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
224 Py_INCREF(type);
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
225 }
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
226 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
227 *exc = type;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
228 *val = value;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
229 return;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
230 finally:
6789
bb440a2975ab Fix subtle bug in cleanup code in PyErr_NormalizeException(), detected
Guido van Rossum <guido@python.org>
parents: 6377
diff changeset
231 Py_DECREF(type);
bb440a2975ab Fix subtle bug in cleanup code in PyErr_NormalizeException(), detected
Guido van Rossum <guido@python.org>
parents: 6377
diff changeset
232 Py_DECREF(value);
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
233 Py_XDECREF(*tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
234 PyErr_Fetch(exc, val, tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
235 /* normalize recursively */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
236 PyErr_NormalizeException(exc, val, tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
237 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
238
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
239
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
240 void
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
241 PyErr_Fetch(p_type, p_value, p_traceback)
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
242 PyObject **p_type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
243 PyObject **p_value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
244 PyObject **p_traceback;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
245 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
246 PyThreadState *tstate = PyThreadState_Get();
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
247
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
248 *p_type = tstate->curexc_type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
249 *p_value = tstate->curexc_value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
250 *p_traceback = tstate->curexc_traceback;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
251
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
252 tstate->curexc_type = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
253 tstate->curexc_value = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
254 tstate->curexc_traceback = NULL;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
255 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
256
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
257 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
258 PyErr_Clear()
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
259 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
260 PyErr_Restore(NULL, NULL, NULL);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
261 }
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
262
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
263 /* Convenience functions to set a type error exception and return 0 */
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
264
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
265 int
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
266 PyErr_BadArgument()
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
267 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
268 PyErr_SetString(PyExc_TypeError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
269 "illegal argument type for built-in operation");
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
270 return 0;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
271 }
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
272
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
273 PyObject *
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
274 PyErr_NoMemory()
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
275 {
6190
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
276 /* raise the pre-allocated instance if it still exists */
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
277 if (PyExc_MemoryErrorInst)
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
278 PyErr_SetObject(PyExc_MemoryError, PyExc_MemoryErrorInst);
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
279 else
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
280 /* this will probably fail since there's no memory and hee,
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
281 hee, we have to instantiate this class
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
282 */
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
283 PyErr_SetNone(PyExc_MemoryError);
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
284
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
285 return NULL;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
286 }
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
287
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
288 PyObject *
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
289 PyErr_SetFromErrnoWithFilename(exc, filename)
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
290 PyObject *exc;
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
291 char *filename;
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
292 {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
293 PyObject *v;
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
294 char *s;
1832
79e420805c67 err_clear: clear interpreter stack trace
Guido van Rossum <guido@python.org>
parents: 1319
diff changeset
295 int i = errno;
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
296 #ifdef MS_WIN32
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
297 char *s_buf = NULL;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
298 #endif
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
299 #ifdef EINTR
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
300 if (i == EINTR && PyErr_CheckSignals())
390
172aa2c3e734 Check for EINTR and turn it into KeyboardInterrupt
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
301 return NULL;
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
302 #endif
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
303 if (i == 0)
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
304 s = "Error"; /* Sometimes errno didn't get set */
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
305 else
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
306 #ifndef MS_WIN32
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
307 s = strerror(i);
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
308 #else
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
309 {
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
310 /* Note that the Win32 errors do not lineup with the
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
311 errno error. So if the error is in the MSVC error
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
312 table, we use it, otherwise we assume it really _is_
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
313 a Win32 error code
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
314 */
11825
4080c7a0f1ed Mark pointed out a buglet in his patch: i < _sys_nerr isn't strong
Guido van Rossum <guido@python.org>
parents: 11801
diff changeset
315 if (i > 0 && i < _sys_nerr) {
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
316 s = _sys_errlist[i];
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
317 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
318 else {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
319 int len = FormatMessage(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
320 FORMAT_MESSAGE_ALLOCATE_BUFFER |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
321 FORMAT_MESSAGE_FROM_SYSTEM |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
322 FORMAT_MESSAGE_IGNORE_INSERTS,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
323 NULL, /* no message source */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
324 i,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
325 MAKELANGID(LANG_NEUTRAL,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
326 SUBLANG_DEFAULT),
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
327 /* Default language */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
328 (LPTSTR) &s_buf,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
329 0, /* size not used */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
330 NULL); /* no args */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
331 s = s_buf;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
332 /* remove trailing cr/lf and dots */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
333 while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.'))
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
334 s[--len] = '\0';
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
335 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
336 }
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
337 #endif
12559
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
338 if (filename != NULL)
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
339 v = Py_BuildValue("(iss)", i, s, filename);
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
340 else
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
341 v = Py_BuildValue("(is)", i, s);
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
342 if (v != NULL) {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
343 PyErr_SetObject(exc, v);
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
344 Py_DECREF(v);
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
345 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
346 #ifdef MS_WIN32
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
347 LocalFree(s_buf);
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
348 #endif
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
349 return NULL;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
350 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
351
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
352
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
353 PyObject *
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
354 PyErr_SetFromErrno(exc)
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
355 PyObject *exc;
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
356 {
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
357 return PyErr_SetFromErrnoWithFilename(exc, NULL);
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
358 }
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
359
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
360 #ifdef MS_WINDOWS
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
361 /* Windows specific error code handling */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
362 PyObject *PyErr_SetFromWindowsErrWithFilename(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
363 int ierr,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
364 const char *filename)
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
365 {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
366 int len;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
367 char *s;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
368 PyObject *v;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
369 DWORD err = (DWORD)ierr;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
370 if (err==0) err = GetLastError();
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
371 len = FormatMessage(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
372 /* Error API error */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
373 FORMAT_MESSAGE_ALLOCATE_BUFFER |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
374 FORMAT_MESSAGE_FROM_SYSTEM |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
375 FORMAT_MESSAGE_IGNORE_INSERTS,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
376 NULL, /* no message source */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
377 err,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
378 MAKELANGID(LANG_NEUTRAL,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
379 SUBLANG_DEFAULT), /* Default language */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
380 (LPTSTR) &s,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
381 0, /* size not used */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
382 NULL); /* no args */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
383 /* remove trailing cr/lf and dots */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
384 while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.'))
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
385 s[--len] = '\0';
12559
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
386 if (filename != NULL)
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
387 v = Py_BuildValue("(iss)", err, s, filename);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
388 else
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
389 v = Py_BuildValue("(is)", err, s);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
390 if (v != NULL) {
11899
723efcdcce1b Mark discovered a bug in his patch: he didn't *use* PyExc_WindowsError
Guido van Rossum <guido@python.org>
parents: 11825
diff changeset
391 PyErr_SetObject(PyExc_WindowsError, v);
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
392 Py_DECREF(v);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
393 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
394 LocalFree(s);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
395 return NULL;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
396 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
397
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
398 PyObject *PyErr_SetFromWindowsErr(int ierr)
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
399 {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
400 return PyErr_SetFromWindowsErrWithFilename(ierr, NULL);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
401
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
402 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
403 #endif /* MS_WINDOWS */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
404
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
405 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
406 PyErr_BadInternalCall()
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
407 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
408 PyErr_SetString(PyExc_SystemError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
409 "bad argument to internal function");
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
410 }
5105
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
411
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
412
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
413 #ifdef HAVE_STDARG_PROTOTYPES
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
414 PyObject *
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
415 PyErr_Format(PyObject *exception, const char *format, ...)
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
416 #else
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
417 PyObject *
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
418 PyErr_Format(exception, format, va_alist)
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
419 PyObject *exception;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
420 const char *format;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
421 va_dcl
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
422 #endif
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
423 {
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
424 va_list vargs;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
425 char buffer[500]; /* Caller is responsible for limiting the format */
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
426
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
427 #ifdef HAVE_STDARG_PROTOTYPES
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
428 va_start(vargs, format);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
429 #else
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
430 va_start(vargs);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
431 #endif
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
432
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
433 vsprintf(buffer, format, vargs);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
434 PyErr_SetString(exception, buffer);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
435 return NULL;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
436 }
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
437
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
438
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
439 PyObject *
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
440 PyErr_NewException(name, base, dict)
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
441 char *name; /* modulename.classname */
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
442 PyObject *base;
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
443 PyObject *dict;
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
444 {
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
445 char *dot;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
446 PyObject *modulename = NULL;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
447 PyObject *classname = NULL;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
448 PyObject *mydict = NULL;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
449 PyObject *bases = NULL;
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
450 PyObject *result = NULL;
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
451 dot = strrchr(name, '.');
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
452 if (dot == NULL) {
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
453 PyErr_SetString(PyExc_SystemError,
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
454 "PyErr_NewException: name must be module.class");
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
455 return NULL;
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
456 }
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
457 if (base == NULL)
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
458 base = PyExc_Exception;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
459 if (!PyClass_Check(base)) {
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
460 /* Must be using string-based standard exceptions (-X) */
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
461 return PyString_FromString(name);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
462 }
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
463 if (dict == NULL) {
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
464 dict = mydict = PyDict_New();
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
465 if (dict == NULL)
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
466 goto failure;
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
467 }
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
468 if (PyDict_GetItemString(dict, "__module__") == NULL) {
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
469 modulename = PyString_FromStringAndSize(name, (int)(dot-name));
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
470 if (modulename == NULL)
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
471 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
472 if (PyDict_SetItemString(dict, "__module__", modulename) != 0)
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
473 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
474 }
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
475 classname = PyString_FromString(dot+1);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
476 if (classname == NULL)
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
477 goto failure;
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
478 bases = Py_BuildValue("(O)", base);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
479 if (bases == NULL)
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
480 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
481 result = PyClass_New(bases, dict, classname);
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
482 failure:
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
483 Py_XDECREF(bases);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
484 Py_XDECREF(mydict);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
485 Py_XDECREF(classname);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
486 Py_XDECREF(modulename);
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
487 return result;
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
488 }