patch 8.1.1575: callbacks may be garbage collected
Problem: Callbacks may be garbage collected.
Solution: Set reference in callbacks. (Ozaki Kiichi, closes #4564)
diff --git a/src/buffer.c b/src/buffer.c
index c3911ae..ee68bc9 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -5962,3 +5962,48 @@
if (!aucmd)
unblock_autocmds();
}
+
+#if defined(FEAT_EVAL) || defined(PROTO)
+/*
+ * Mark references in functions of buffers.
+ */
+ int
+set_ref_in_buffers(int copyID)
+{
+ int abort = FALSE;
+ buf_T *bp;
+
+ FOR_ALL_BUFFERS(bp)
+ {
+ listener_T *lnr;
+ typval_T tv;
+
+ for (lnr = bp->b_listener; !abort && lnr != NULL; lnr = lnr->lr_next)
+ {
+ if (lnr->lr_callback.cb_partial != NULL)
+ {
+ tv.v_type = VAR_PARTIAL;
+ tv.vval.v_partial = lnr->lr_callback.cb_partial;
+ abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL);
+ }
+ }
+# ifdef FEAT_JOB_CHANNEL
+ if (!abort && bp->b_prompt_callback.cb_partial != NULL)
+ {
+ tv.v_type = VAR_PARTIAL;
+ tv.vval.v_partial = bp->b_prompt_callback.cb_partial;
+ abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL);
+ }
+ if (!abort && bp->b_prompt_interrupt.cb_partial != NULL)
+ {
+ tv.v_type = VAR_PARTIAL;
+ tv.vval.v_partial = bp->b_prompt_interrupt.cb_partial;
+ abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL);
+ }
+# endif
+ if (abort)
+ break;
+ }
+ return abort;
+}
+#endif