patch 7.4.1263
Problem: ch_open() hangs when the server isn't running.
Solution: Add a timeout. Use a dict to pass arguments. (Yasuhiro Matsumoto)
diff --git a/src/proto/channel.pro b/src/proto/channel.pro
index 77040a5..f8e4a9b 100644
--- a/src/proto/channel.pro
+++ b/src/proto/channel.pro
@@ -1,7 +1,8 @@
/* channel.c */
void channel_gui_register_all(void);
-int channel_open(char *hostname, int port_in, void (*close_cb)(void));
+int channel_open(char *hostname, int port_in, int waittime, void (*close_cb)(void));
void channel_set_json_mode(int idx, int json_mode);
+void channel_set_timeout(int idx, int timeout);
void channel_set_callback(int idx, char_u *callback);
void channel_set_req_callback(int idx, char_u *callback, int id);
char_u *channel_get(int idx);