Backport PR #27290: Ensure GIL while releasing buffer

tacaswell · meeseeksmachine · commit 2bbdeb1171f8 · 2023-11-15T21:16:10.000Z
diff --git a/src/_macosx.m b/src/_macosx.m
@@ -1287,8 +1287,10 @@ - (void)setCanvas: (PyObject*)newCanvas
 }
 
 static void _buffer_release(void* info, const void* data, size_t size) {
+    PyGILState_STATE gstate = PyGILState_Ensure();
     PyBuffer_Release((Py_buffer *)info);
     free(info);
+    PyGILState_Release(gstate);
 }
 
 static int _copy_agg_buffer(CGContextRef cr, PyObject *renderer)

Original file line number	Diff line number	Diff line change
`@@ -1287,8 +1287,10 @@ - (void)setCanvas: (PyObject*)newCanvas`
`1287`	`1287`	`}`
`1288`	`1288`
`1289`	`1289`	`static void _buffer_release(void* info, const void* data, size_t size) {`
	`1290`	`+ PyGILState_STATE gstate = PyGILState_Ensure();`
`1290`	`1291`	`PyBuffer_Release((Py_buffer *)info);`
`1291`	`1292`	`free(info);`
	`1293`	`+ PyGILState_Release(gstate);`
`1292`	`1294`	`}`
`1293`	`1295`
`1294`	`1296`	`static int _copy_agg_buffer(CGContextRef cr, PyObject *renderer)`