Revert "Removed delay and check for nanosleep (replaced by ready message in libguac)"

This reverts commit a9ea3ac383de3f92e5b0d29449f1daa618b60624.

protocols/vnc/configure.in

@@ -52,6 +52,7 @@ AC_CHECK_HEADERS([stdlib.h string.h syslog.h guacamole/client.h guacamole/guacio
 
 # Checks for library functions.
 AC_FUNC_MALLOC
+AC_CHECK_FUNCS([nanosleep])
 
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT

protocols/vnc/src/vnc_client.c

@@ -217,6 +217,23 @@ void guac_vnc_cut_text(rfbClient* client, const char* text, int textlen) {
 
 }
 
+void vnc_guac_client_sleep(int millis) {
+
+#ifdef HAVE_NANOSLEEP 
+        struct timespec sleep_period;
+
+        sleep_period.tv_sec = 0;
+        sleep_period.tv_nsec = millis * 1000000L;
+
+        nanosleep(&sleep_period, NULL);
+#elif defined(__MINGW32__)
+        Sleep(millis)
+#else
+#warning No sleep/nanosleep function available. VNC client may not perform as expected. Consider editing the vnc_client.c to add support for your platform.
+#endif
+
+}
+
 int vnc_guac_client_handle_messages(guac_client* client) {
 
     int wait_result;
@@ -236,6 +253,11 @@ int vnc_guac_client_handle_messages(guac_client* client) {
             return 1;
         }
 
+        /* Wait before returning ... don't want to handle
+         * too many server messages. */
+
+        vnc_guac_client_sleep(50);
+
     }
 
     return 0;