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Issue #18203: Replace malloc() with PyMem_RawMalloc() at Python initialization

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* Replace malloc() with PyMem_RawMalloc()
* Replace PyMem_Malloc() with PyMem_RawMalloc() where the GIL is not held.
* _Py_char2wchar() now returns a buffer allocated by PyMem_RawMalloc(), instead
  of PyMem_Malloc()
This commit is contained in:
Victor Stinner 2013-07-07 16:25:15 +02:00
parent 51fa458d0a
commit 1a7425f67a
8 changed files with 76 additions and 76 deletions
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23
Modules/python.c
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@ -18,11 +18,19 @@ wmain(int argc, wchar_t **argv)
int
main(int argc, char **argv)
{
wchar_t **argv_copy = (wchar_t **)PyMem_Malloc(sizeof(wchar_t*)*(argc+1));
wchar_t **argv_copy;
/* We need a second copies, as Python might modify the first one. */
wchar_t **argv_copy2 = (wchar_t **)PyMem_Malloc(sizeof(wchar_t*)*(argc+1));
wchar_t **argv_copy2;
int i, res;
char *oldloc;
argv_copy = (wchar_t **)PyMem_RawMalloc(sizeof(wchar_t*) * (argc+1));
argv_copy2 = (wchar_t **)PyMem_RawMalloc(sizeof(wchar_t*) * (argc+1));
if (!argv_copy || !argv_copy2) {
fprintf(stderr, "out of memory\n");
return 1;
}
/* 754 requires that FP exceptions run in "no stop" mode by default,
* and until C vendors implement C99's ways to control FP exceptions,
* Python requires non-stop mode. Alas, some platforms enable FP
@ -34,10 +42,7 @@ main(int argc, char **argv)
m = fpgetmask();
fpsetmask(m & ~FP_X_OFL);
#endif
if (!argv_copy || !argv_copy2) {
fprintf(stderr, "out of memory\n");
return 1;
}
oldloc = strdup(setlocale(LC_ALL, NULL));
setlocale(LC_ALL, "");
for (i = 0; i < argc; i++) {
@ -57,10 +62,10 @@ main(int argc, char **argv)
free(oldloc);
res = Py_Main(argc, argv_copy);
for (i = 0; i < argc; i++) {
PyMem_Free(argv_copy2[i]);
PyMem_RawFree(argv_copy2[i]);
}
PyMem_Free(argv_copy);
PyMem_Free(argv_copy2);
PyMem_RawFree(argv_copy);
PyMem_RawFree(argv_copy2);
return res;
}
#endif