X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fltt%2Fevent.c;h=bd9a8fbe9eeaded3edb9e8f218c1b0cde8d8df02;hb=96da5c0d83846884f7be822410209325a2dd0e51;hp=f762dbddf5d174e306175115682f4d94a8776444;hpb=dd691a2ef3d6fdcba001206bf686a4cdce26b545;p=lttv.git

diff --git a/ltt/branches/poly/ltt/event.c b/ltt/branches/poly/ltt/event.c
index f762dbdd..bd9a8fbe 100644
--- a/ltt/branches/poly/ltt/event.c
+++ b/ltt/branches/poly/ltt/event.c
@@ -1,3 +1,21 @@
+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2003-2004 Xiangxiu Yang
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
+ * MA 02111-1307, USA.
+ */
+
 #include <stdio.h>
 #include <asm/types.h>
 #include <linux/byteorder/swab.h>
@@ -242,6 +260,66 @@ void ltt_event_position_set(LttEventPosition *ep,
   ep->event_num = index_in_block;  
 }
 
+/*****************************************************************************
+ * Function name
+ *    ltt_event_position_compare : compare two positions
+ * Input params
+ *    ep1                    : a pointer to event's position structure
+ *    ep2                    : a pointer to event's position structure
+ * Return
+ *    -1 is ep1 < ep2
+ *    1 if ep1 > ep2
+ *    0 if ep1 == ep2
+ ****************************************************************************/
+
+
+gint ltt_event_position_compare(const LttEventPosition *ep1,
+                                const LttEventPosition *ep2)
+{
+  if(ep1->tf != ep2->tf)
+    g_error("ltt_event_position_compare on different tracefiles makes no sense");
+  if(ep1->block_num < ep2->block_num)
+    return -1;
+  if(ep1->block_num > ep2->block_num)
+    return 1;
+  if(ep1->event_num < ep2->event_num)
+    return -1;
+  if(ep1->event_num > ep2->event_num)
+    return 1;
+  return 0;
+}
+
+/*****************************************************************************
+ * Function name
+ *    ltt_event_event_position_compare : compare two positions, one in event,
+ *    other in position opaque structure.
+ * Input params
+ *    event                  : a pointer to event structure
+ *    ep                     : a pointer to event's position structure
+ * Return
+ *    -1 is event < ep
+ *    1 if event > ep
+ *    0 if event == ep
+ ****************************************************************************/
+
+gint ltt_event_event_position_compare(const LttEvent *event,
+                                      const LttEventPosition *ep)
+{
+  if(event->tf != ep->tf)
+    g_error("ltt_event_position_compare on different tracefiles makes no sense");
+  if(e->which_block < ep->block_num)
+    return -1;
+  if(e->which_block > ep->block_num)
+    return 1;
+  if(e->which_event < ep->event_num)
+    return -1;
+  if(e->which_event > ep->event_num)
+    return 1;
+  return 0;
+}
+
+
+
 /*****************************************************************************
  *Function name
  *    ltt_event_cpu_i: get the cpu id where the event happens