+static int
+drv_testmouse(TERMINAL_CONTROL_BLOCK * TCB, int delay)
+{
+ int rc = 0;
+ SCREEN *sp;
+
+ AssertTCB();
+ SetSP();
+
+#if USE_SYSMOUSE
+ if ((sp->_mouse_type == M_SYSMOUSE)
+ && (sp->_sysmouse_head < sp->_sysmouse_tail)) {
+ rc = TW_MOUSE;
+ } else
+#endif
+ {
+ rc = TCBOf(sp)->drv->twait(TCBOf(sp),
+ TWAIT_MASK,
+ delay,
+ (int *) 0
+ EVENTLIST_2nd(evl));
+#if USE_SYSMOUSE
+ if ((sp->_mouse_type == M_SYSMOUSE)
+ && (sp->_sysmouse_head < sp->_sysmouse_tail)
+ && (rc == 0)
+ && (errno == EINTR)) {
+ rc |= TW_MOUSE;
+ }
+#endif
+ }
+ return rc;
+}
+