kosaki	2011-05-04 12:47:33 +0900 (Wed, 04 May 2011)

  New Revision: 31426

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=31426

  Log:
    * thread.c (rb_wait_for_single_fd): Added POLLNVAL check.
      based on a patch from Eric Wong at [ruby-core:35991].

  Modified files:
    trunk/ChangeLog
    trunk/thread.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 31425)
+++ ChangeLog	(revision 31426)
@@ -1,3 +1,8 @@
+Wed May  4 12:46:25 2011  KOSAKI Motohiro  <kosaki.motohiro@g...>
+
+	* thread.c (rb_wait_for_single_fd): Added POLLNVAL check.
+	  based on a patch from Eric Wong at [ruby-core:35991].
+
 Wed May  4 11:51:01 2011  KOSAKI Motohiro  <kosaki.motohiro@g...>
 
 	* io.c (rb_f_select): remove useless ifdef.
Index: thread.c
===================================================================
--- thread.c	(revision 31425)
+++ thread.c	(revision 31426)
@@ -2737,7 +2737,10 @@
     }, ubf_select, GET_THREAD());
 
     if (result > 0) {
-	/* remain compatible with select(2)-based implementation */
+	if (fds.revents & POLLNVAL) {
+	    errno = EBADF;
+	    return -1;
+	}
 	result = (int)(fds.revents & fds.events);
 	return result == 0 ? events : result;
     }

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