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Issue #23152: Implement _Py_fstat() to support files larger than 2 GB on Windows.

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fstat() may fail with EOVERFLOW on files larger than 2 GB because the file size type is an signed 32-bit integer.
This commit is contained in:
Steve Dower 2015-02-21 08:44:05 -08:00
parent 18d1924987
commit f2f373f593
12 changed files with 242 additions and 180 deletions
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8
Modules/mmapmodule.c
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@ -459,8 +459,8 @@ mmap_size_method(mmap_object *self,
#ifdef UNIX
{
struct stat buf;
if (-1 == fstat(self->fd, &buf)) {
struct _Py_stat_struct buf;
if (-1 == _Py_fstat(self->fd, &buf)) {
PyErr_SetFromErrno(PyExc_OSError);
return NULL;
}
@ -1107,7 +1107,7 @@ static PyObject *
new_mmap_object(PyTypeObject *type, PyObject *args, PyObject *kwdict)
{
#ifdef HAVE_FSTAT
struct stat st;
struct _Py_stat_struct st;
#endif
mmap_object *m_obj;
PyObject *map_size_obj = NULL;
@ -1174,7 +1174,7 @@ new_mmap_object(PyTypeObject *type, PyObject *args, PyObject *kwdict)
(void)fcntl(fd, F_FULLFSYNC);
#endif
#ifdef HAVE_FSTAT
if (fd != -1 && fstat(fd, &st) == 0 && S_ISREG(st.st_mode)) {
if (fd != -1 && _Py_fstat(fd, &st) == 0 && S_ISREG(st.st_mode)) {
if (map_size == 0) {
if (st.st_size == 0) {
PyErr_SetString(PyExc_ValueError,