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diff --git a/src/client/Trace.cc b/src/client/Trace.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+
+
+#include "Trace.h"
+#include "common/debug.h"
+
+#include <iostream>
+#include <map>
+
+#include "common/Mutex.h"
+
+#include "common/config.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+
+
+
+
+void Trace::start()
+{
+ //cout << "start" << std::endl;
+ delete fs;
+
+ fs = new ifstream();
+ fs->open(filename);
+ if (!fs->is_open()) {
+ //generic_dout(0) << "** unable to open trace file " << filename << dendl;
+ ceph_abort();
+ }
+ //generic_dout(2) << "opened traced file '" << filename << "'" << dendl;
+
+ // read first line
+ getline(*fs, line);
+ //cout << "first line is " << line << std::endl;
+
+ _line = 1;
+}
+
+const char *Trace::peek_string(string &buf, const char *prefix)
+{
+ //if (prefix) cout << "prefix '" << prefix << "' line '" << line << "'" << std::endl;
+ if (prefix &&
+ strstr(line.c_str(), "/prefix") == line.c_str()) {
+ buf.clear();
+ buf.append(prefix);
+ buf.append(line.c_str() + strlen("/prefix"));
+ } else {
+ buf = line;
+ }
+ return buf.c_str();
+}
+
+
+const char *Trace::get_string(string &buf, const char *prefix)
+{
+ peek_string(buf, prefix);
+
+ //cout << "buf is " << buf << std::endl;
+ // read next line (and detect eof early)
+ _line++;
+ getline(*fs, line);
+ //cout << "next line is " << line << std::endl;
+
+ return buf.c_str();
+}