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-rw-r--r--Python/fileutils.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/Python/fileutils.c b/Python/fileutils.c
index 06d632a..a710c99 100644
--- a/Python/fileutils.c
+++ b/Python/fileutils.c
@@ -683,6 +683,10 @@ _Py_fstat(int fd, struct _Py_stat_struct *status)
{
int res;
+#ifdef WITH_THREAD
+ assert(PyGILState_Check());
+#endif
+
Py_BEGIN_ALLOW_THREADS
res = _Py_fstat_noraise(fd, status);
Py_END_ALLOW_THREADS
@@ -1164,6 +1168,10 @@ _Py_read(int fd, void *buf, size_t count)
int err;
int async_err = 0;
+#ifdef WITH_THREAD
+ assert(PyGILState_Check());
+#endif
+
/* _Py_read() must not be called with an exception set, otherwise the
* caller may think that read() was interrupted by a signal and the signal
* handler raised an exception. */
@@ -1319,6 +1327,10 @@ _Py_write_impl(int fd, const void *buf, size_t count, int gil_held)
Py_ssize_t
_Py_write(int fd, const void *buf, size_t count)
{
+#ifdef WITH_THREAD
+ assert(PyGILState_Check());
+#endif
+
/* _Py_write() must not be called with an exception set, otherwise the
* caller may think that write() was interrupted by a signal and the signal
* handler raised an exception. */
@@ -1468,6 +1480,10 @@ _Py_dup(int fd)
DWORD ftype;
#endif
+#ifdef WITH_THREAD
+ assert(PyGILState_Check());
+#endif
+
if (!_PyVerify_fd(fd)) {
PyErr_SetFromErrno(PyExc_OSError);
return -1;