kosaki	2010-12-20 01:18:16 +0900 (Mon, 20 Dec 2010)

  New Revision: 30247

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=30247

  Log:
    * io.c (Init_IO): Added O_DIRECT. This feature was propsed by Run Paint Run Run.
              [Feature #4015] [ruby-core:33018]

  Modified files:
    trunk/ChangeLog
    trunk/io.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 30246)
+++ ChangeLog	(revision 30247)
@@ -1,3 +1,8 @@
+Mon Dec 20 01:55:03 2010  KOSAKI Motohiro  <kosaki.motohiro@g...>
+
+	* io.c (Init_IO): Added O_DIRECT. This feature was propsed by Run Paint Run Run.
+	  [Feature #4015] [ruby-core:33018]
+
 Sun Dec 19 19:15:23 2010  Tanaka Akira  <akr@f...>
 
 	* marshal.c: parenthesize macro arguments.
Index: io.c
===================================================================
--- io.c	(revision 30246)
+++ io.c	(revision 30247)
@@ -10509,6 +10509,10 @@
     /* do not change atime */
     rb_file_const("NOATIME", INT2FIX(O_NOATIME)); /* Linux */
 #endif
+#ifdef O_DIRECT
+    /*  Try to minimize cache effects of the I/O to and from this file. */
+    rb_file_const("DIRECT", INT2FIX(O_DIRECT));
+#endif
 
     sym_mode = ID2SYM(rb_intern("mode"));
     sym_perm = ID2SYM(rb_intern("perm"));

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