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Refactor the common code out of the posix and windows listdir 

implementations from my previous commit into the higher level
function.
This commit is contained in:
Gregory P. Smith 2013-03-20 20:52:50 -07:00
parent 16ea14a690
commit 40a2160a09
1 changed files with 44 additions and 55 deletions
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99
Modules/posixmodule.c
View File

@ -3251,12 +3251,9 @@ On some platforms, path may also be specified as an open file descriptor;\n\
#if defined(MS_WINDOWS) && !defined(HAVE_OPENDIR)
static PyObject *
_listdir_windows_no_opendir(PyObject *self, PyObject *args, PyObject *kwargs)
_listdir_windows_no_opendir(path_t *path, PyObject *list)
{
path_t path;
PyObject *list = NULL;
static char *keywords[] = {"path", NULL};
int fd = -1;
PyObject *v;
HANDLE hFindFile = INVALID_HANDLE_VALUE;
BOOL result;
@ -3268,25 +3265,16 @@ _listdir_windows_no_opendir(PyObject *self, PyObject *args, PyObject *kwargs)
PyObject *po = NULL;
wchar_t *wnamebuf = NULL;
memset(&path, 0, sizeof(path));
path.function_name = "listdir";
path.nullable = 1;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|O&:listdir", keywords,
path_converter, &path)) {
return NULL;
}
if (!path.narrow) {
if (!path->narrow) {
WIN32_FIND_DATAW wFileData;
wchar_t *po_wchars;
if (!path.wide) { /* Default arg: "." */
if (!path->wide) { /* Default arg: "." */
po_wchars = L".";
len = 1;
} else {
po_wchars = path.wide;
len = wcslen(path.wide);
po_wchars = path->wide;
len = wcslen(path->wide);
}
/* The +5 is so we can append "\\*.*\0" */
wnamebuf = malloc((len + 5) * sizeof(wchar_t));
@ -3312,7 +3300,7 @@ _listdir_windows_no_opendir(PyObject *self, PyObject *args, PyObject *kwargs)
if (error == ERROR_FILE_NOT_FOUND)
goto exit;
Py_DECREF(list);
list = path_error(&path);
list = path_error(path);
goto exit;
}
do {
@ -3341,15 +3329,15 @@ _listdir_windows_no_opendir(PyObject *self, PyObject *args, PyObject *kwargs)
it got to the end of the directory. */
if (!result && GetLastError() != ERROR_NO_MORE_FILES) {
Py_DECREF(list);
list = path_error(&path);
list = path_error(path);
goto exit;
}
} while (result == TRUE);
goto exit;
}
strcpy(namebuf, path.narrow);
len = path.length;
strcpy(namebuf, path->narrow);
len = path->length;
if (len > 0) {
char ch = namebuf[len-1];
if (ch != SEP && ch != ALTSEP && ch != ':')
@ -3368,7 +3356,7 @@ _listdir_windows_no_opendir(PyObject *self, PyObject *args, PyObject *kwargs)
if (error == ERROR_FILE_NOT_FOUND)
goto exit;
Py_DECREF(list);
list = path_error(&path);
list = path_error(path);
goto exit;
}
do {
@ -3396,7 +3384,7 @@ _listdir_windows_no_opendir(PyObject *self, PyObject *args, PyObject *kwargs)
it got to the end of the directory. */
if (!result && GetLastError() != ERROR_NO_MORE_FILES) {
Py_DECREF(list);
list = path_error(&path);
list = path_error(path);
goto exit;
}
} while (result == TRUE);
@ -3406,26 +3394,21 @@ exit:
if (FindClose(hFindFile) == FALSE) {
if (list != NULL) {
Py_DECREF(list);
list = path_error(&path);
list = path_error(path);
}
}
}
if (wnamebuf)
free(wnamebuf);
path_cleanup(&path);
return list;
} /* end of _listdir_windows_no_opendir */
#else /* thus POSIX, ie: not (MS_WINDOWS and not HAVE_OPENDIR) */
static PyObject *
_posix_listdir(PyObject *self, PyObject *args, PyObject *kwargs)
_posix_listdir(path_t *path, PyObject *list)
{
path_t path;
PyObject *list = NULL;
static char *keywords[] = {"path", NULL};
int fd = -1;
PyObject *v;
@ -3433,24 +3416,12 @@ _posix_listdir(PyObject *self, PyObject *args, PyObject *kwargs)
struct dirent *ep;
int return_str; /* if false, return bytes */
memset(&path, 0, sizeof(path));
path.function_name = "listdir";
path.nullable = 1;
#ifdef HAVE_FDOPENDIR
path.allow_fd = 1;
path.fd = -1;
#endif
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|O&:listdir", keywords,
path_converter, &path)) {
return NULL;
}
errno = 0;
#ifdef HAVE_FDOPENDIR
if (path.fd != -1) {
if (path->fd != -1) {
/* closedir() closes the FD, so we duplicate it */
Py_BEGIN_ALLOW_THREADS
fd = dup(path.fd);
fd = dup(path->fd);
Py_END_ALLOW_THREADS
if (fd == -1) {
@ -3468,10 +3439,10 @@ _posix_listdir(PyObject *self, PyObject *args, PyObject *kwargs)
#endif
{
char *name;
if (path.narrow) {
name = path.narrow;
if (path->narrow) {
name = path->narrow;
/* only return bytes if they specified a bytes object */
return_str = !(PyBytes_Check(path.object));
return_str = !(PyBytes_Check(path->object));
}
else {
name = ".";
@ -3484,7 +3455,7 @@ _posix_listdir(PyObject *self, PyObject *args, PyObject *kwargs)
}
if (dirp == NULL) {
list = path_error(&path);
list = path_error(path);
goto exit;
}
if ((list = PyList_New(0)) == NULL) {
@ -3500,7 +3471,7 @@ _posix_listdir(PyObject *self, PyObject *args, PyObject *kwargs)
break;
} else {
Py_DECREF(list);
list = path_error(&path);
list = path_error(path);
goto exit;
}
}
@ -3533,8 +3504,6 @@ exit:
Py_END_ALLOW_THREADS
}
path_cleanup(&path);
return list;
} /* end of _posix_listdir */
#endif /* which OS */
@ -3542,11 +3511,31 @@ exit:
static PyObject *
posix_listdir(PyObject *self, PyObject *args, PyObject *kwargs)
{
#if defined(MS_WINDOWS) && !defined(HAVE_OPENDIR)
return _listdir_windows_no_opendir(self, args, kwargs);
#else
return _posix_listdir(self, args, kwargs);
path_t path;
PyObject *list = NULL;
static char *keywords[] = {"path", NULL};
PyObject *return_value;
memset(&path, 0, sizeof(path));
path.function_name = "listdir";
path.nullable = 1;
#ifdef HAVE_FDOPENDIR
path.allow_fd = 1;
path.fd = -1;
#endif
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|O&:listdir", keywords,
path_converter, &path)) {
return NULL;
}
#if defined(MS_WINDOWS) && !defined(HAVE_OPENDIR)
return_value = _listdir_windows_no_opendir(&path, list);
#else
return_value = _posix_listdir(&path, list);
#endif
path_cleanup(&path);
return return_value;
}
#ifdef MS_WINDOWS