Merged revisions 66006 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt modes)
........
r66006 | neal.norwitz | 2008-08-23 22:04:52 -0700 (Sat, 23 Aug 2008) | 25 lines
Fix:
* crashes on memory allocation failure found with failmalloc
* memory leaks found with valgrind
* compiler warnings in opt mode which would lead to invalid memory reads
* problem using wrong name in decimal module reported by pychecker
Update the valgrind suppressions file with new leaks that are small/one-time
leaks we don't care about (ie, they are too hard to fix).
TBR=barry
TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt modes)
in opt mode:
valgrind -q --leak-check=yes --suppressions=Misc/valgrind-python.supp \
./python -E -tt ./Lib/test/regrtest.py -uall,-bsddb,-compiler \
-x test_logging test_ssl test_multiprocessing
valgrind -q --leak-check=yes --suppressions=Misc/valgrind-python.supp \
./python -E -tt ./Lib/test/regrtest.py test_multiprocessing
for i in `seq 1 4000` ; do
LD_PRELOAD=~/local/lib/libfailmalloc.so FAILMALLOC_INTERVAL=$i \
./python -c pass
done
At least some of these fixes should probably be backported to 2.5.
........
diff --git a/Python/getargs.c b/Python/getargs.c
index cf4444c..b7beb37 100644
--- a/Python/getargs.c
+++ b/Python/getargs.c
@@ -1354,7 +1354,7 @@
/* XXX for 3.x, getbuffer and convertbuffer can probably
be merged again. */
static int
-getbuffer(PyObject *arg, Py_buffer *view, char**errmsg)
+getbuffer(PyObject *arg, Py_buffer *view, char **errmsg)
{
void *buf;
Py_ssize_t count;
@@ -1364,8 +1364,10 @@
return -1;
}
if (pb->bf_getbuffer) {
- if (pb->bf_getbuffer(arg, view, 0) < 0)
+ if (pb->bf_getbuffer(arg, view, 0) < 0) {
+ *errmsg = "convertible to a buffer";
return -1;
+ }
if (!PyBuffer_IsContiguous(view, 'C')) {
*errmsg = "contiguous buffer";
return -1;
@@ -1374,8 +1376,10 @@
}
count = convertbuffer(arg, &buf, errmsg);
- if (count < 0)
+ if (count < 0) {
+ *errmsg = "convertible to a buffer";
return count;
+ }
PyBuffer_FillInfo(view, NULL, buf, count, 1, 0);
return 0;
}