patch 8.0.0097
Problem: When a channel callback consumes a lot of time Vim becomes
unresponsive. (skywind)
Solution: Bail out of checking channel readahead after 100 msec.
diff --git a/src/misc2.c b/src/misc2.c
index 27d26be..9fa11e3 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -6263,3 +6263,34 @@
# endif
}
#endif
+
+#ifdef ELAPSED_TIMEVAL /* proto is defined in vim.h */
+/*
+ * Return time in msec since "start_tv".
+ */
+ long
+elapsed(struct timeval *start_tv)
+{
+ struct timeval now_tv;
+
+ gettimeofday(&now_tv, NULL);
+ return (now_tv.tv_sec - start_tv->tv_sec) * 1000L
+ + (now_tv.tv_usec - start_tv->tv_usec) / 1000L;
+}
+#endif
+
+#ifdef ELAPSED_TICKCOUNT
+/*
+ * Return time in msec since "start_tick".
+ */
+ long
+elapsed(DWORD start_tick)
+{
+ DWORD now = GetTickCount();
+
+ if (now < start_tick)
+ /* overflow */
+ return (long)now;
+ return (long)now - (long)start_tick;
+}
+#endif