2025-04-24 Fred Gleason <fredg@paravelsystems.com>

* Added a 'RDTimeArray' class for optimization and debugging.

Signed-off-by: Fred Gleason <fredg@paravelsystems.com>

lib/rdtimearray.h

@@ -0,0 +1,60 @@
+// rdtimearray.h
+//
+// Record a sequence of precise points in time with microsecond precision.
+//
+//   (C) Copyright 2025 Fred Gleason <fredg@paravelsystems.com>
+//
+//   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+
+#ifndef RDTIMEARRAY_H
+#define RDTIMEARRAY_H
+
+#include <stdint.h>
+
+#include <QList>
+#include <QString>
+
+class RDTimePoint
+{
+ public:
+  RDTimePoint(const QString &label);
+  QString label() const;
+  int64_t usecs() const;
+  QString toString() const;
+  int64_t operator-(const RDTimePoint &rhs) const;
+
+ private:
+  QString d_label;
+  int64_t d_usecs;
+};
+
+
+class RDTimeArray
+{
+ public:
+  RDTimeArray();
+  int size() const;
+  RDTimePoint timePoint(int n) const;
+  void addPoint(QString label="");
+  QString toString(int from=0,int to=-1) const;
+  QString offsetsToString(int from=1,int to=-1) const;
+  int64_t usecsElapsed(int from=0,int to=-1) const;
+  
+ private:
+  QList<RDTimePoint> d_points;
+};
+
+
+#endif  // RDTIMEARRAY_H