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From: Alexander Motin <mav@FreeBSD.org>
Date: Tue, 15 Jun 2010 19:19:04 +0000 (UTC)
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Subject: svn commit: r209214 - head/usr.sbin/moused
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Author: mav
Date: Tue Jun 15 19:19:04 2010
New Revision: 209214
URL: http://svn.freebsd.org/changeset/base/209214

Log:
  When Emulate3Button is active, do not set select() timeout in states when
  it is not needed. No need to kick CPU every 20ms without a purpose.
  
  Reviewed by:	philip@

Modified:
  head/usr.sbin/moused/moused.c

Modified: head/usr.sbin/moused/moused.c
==============================================================================
--- head/usr.sbin/moused/moused.c	Tue Jun 15 19:14:39 2010	(r209213)
+++ head/usr.sbin/moused/moused.c	Tue Jun 15 19:19:04 2010	(r209214)
@@ -1090,7 +1090,8 @@ moused(void)
 	    FD_SET(rodent.mremcfd, &fds);
 
 	c = select(FD_SETSIZE, &fds, NULL, NULL,
-		   (rodent.flags & Emulate3Button) ? &timeout : NULL);
+		   ((rodent.flags & Emulate3Button) &&
+		    S_DELAYED(mouse_button_state)) ? &timeout : NULL);
 	if (c < 0) {                    /* error */
 	    logwarn("failed to read from mouse");
 	    continue;