Add DRD as an experimental tool.  Bart Van Assche is the maintainer.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7211 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/exp-drd/drd_segment.h b/exp-drd/drd_segment.h
new file mode 100644
index 0000000..209ed16
--- /dev/null
+++ b/exp-drd/drd_segment.h
@@ -0,0 +1,63 @@
+/*
+  This file is part of drd, a data race detector.
+
+  Copyright (C) 2006-2007 Bart Van Assche
+  bart.vanassche@gmail.com
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  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.
+
+  The GNU General Public License is contained in the file COPYING.
+*/
+
+
+#ifndef __SEGMENT_H
+#define __SEGMENT_H
+
+
+// Segments and segment lists. A segment represents information about 
+// a contiguous group of statements of a specific thread. There is a vector
+// clock associated with each segment.
+
+
+#include "drd_vc.h"
+#include "pub_drd_bitmap.h"
+#include "pub_tool_execontext.h" // ExeContext
+#include "pub_tool_stacktrace.h" // StackTrace
+
+
+typedef struct segment
+{
+  struct segment*    next;
+  struct segment*    prev;
+  ExeContext*        stacktrace;
+  VectorClock        vc;
+  struct bitmap*     bm;
+} Segment;
+
+void sg_init(Segment* const sg,
+             ThreadId const creator,
+             ThreadId const created);
+void sg_cleanup(Segment* const sg);
+Segment* sg_new(ThreadId const creator, ThreadId const created);
+void sg_delete(Segment* const sg);
+void sg_print(const Segment* const sg);
+Bool sg_get_trace(void);
+void sg_set_trace(Bool const trace_segment);
+ULong sg_get_segments_created_count(void);
+ULong sg_get_max_segments_alive_count(void);
+
+
+#endif // __SEGMENT_H