usa	2008-09-23 19:50:42 +0900 (Tue, 23 Sep 2008)

  New Revision: 19486

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=19486

  Log:
    * win32/win32.c (subtruct): check tv_sec.

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/win32/win32.c

Index: ruby_1_8/ChangeLog
===================================================================
--- ruby_1_8/ChangeLog	(revision 19485)
+++ ruby_1_8/ChangeLog	(revision 19486)
@@ -1,3 +1,7 @@
+Tue Sep 23 19:50:24 2008  NAKAMURA Usaku  <usa@r...>
+
+	* win32/win32.c (subtruct): check tv_sec.
+
 Tue Sep 23 19:30:41 2008  NAKAMURA Usaku  <usa@r...>
 
 	* win32/win32.c (filetime_to_timeval): new function, split from
Index: ruby_1_8/win32/win32.c
===================================================================
--- ruby_1_8/win32/win32.c	(revision 19485)
+++ ruby_1_8/win32/win32.c	(revision 19486)
@@ -2172,6 +2172,9 @@
 static inline int
 subtract(struct timeval *rest, const struct timeval *wait)
 {
+    if (rest->tv_sec < wait->tv_sec) {
+	return 0;
+    }
     while (rest->tv_usec < wait->tv_usec) {
 	if (rest->tv_sec <= wait->tv_sec) {
 	    return 0;

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