1 files changed, 57 insertions, 0 deletions
diff --git a/src/GudhUI/utils/MClock.h b/src/GudhUI/utils/MClock.h
new file mode 100644
index 00000000..54b28211
--- /dev/null
+++ b/src/GudhUI/utils/MClock.h
@@ -0,0 +1,57 @@
+/*    This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
+ *    See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
+ *    Author(s):       David Salinas
+ *
+ *    Copyright (C) 2014 Inria
+ *
+ *    Modification(s):
+ *      - YYYY/MM Author: Description of the modification
+ */
+
+#ifndef UTILS_MCLOCK_H_
+#define UTILS_MCLOCK_H_
+
+#include <sys/time.h>
+
+class MClock {
+ public:
+  MClock() {
+    end_called = false;
+    begin();
+  }
+
+  void begin() const {
+    end_called = false;
+    gettimeofday(&startTime, NULL);
+  }
+
+  void end() const {
+    end_called = true;
+    gettimeofday(&endTime, NULL);
+  }
+
+  friend std::ostream& operator<<(std::ostream& stream, const MClock& clock) {
+    // if(!clock.end_called) clock.end();
+    if (!clock.end_called) {
+      stream << "end not called";
+    } else {
+      long totalTime = (clock.endTime.tv_sec - clock.startTime.tv_sec) * 1000000L;
+      totalTime += (clock.endTime.tv_usec - clock.startTime.tv_usec);
+      stream << clock.num_seconds() << "s";
+    }
+    return stream;
+  }
+
+  double num_seconds() const {
+    if (!end_called) end();
+    long totalTime = (endTime.tv_sec - startTime.tv_sec) * 1000000L;
+    totalTime += (endTime.tv_usec - startTime.tv_usec);
+    return (totalTime / 1000L) / static_cast<double>(1000);
+  }
+
+ private:
+  mutable struct timeval startTime, endTime;
+  mutable bool end_called;
+};
+
+#endif  // UTILS_MCLOCK_H_