1 files changed, 120 insertions, 0 deletions
diff --git a/libs/glibmm2/glibmm/timeval.cc b/libs/glibmm2/glibmm/timeval.cc
new file mode 100644
index 0000000000..6494d0f41d
--- /dev/null
+++ b/libs/glibmm2/glibmm/timeval.cc
@@ -0,0 +1,120 @@
+// -*- c++ -*-
+/* $Id$ */
+
+/* timeval.cc
+ *
+ * Copyright (C) 2002 The gtkmm Development Team
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <glib/gmain.h>
+#include <glib/gmessages.h>
+#include <glib/gtimer.h>
+
+#include <glibmm/timeval.h>
+
+
+namespace Glib
+{
+
+void TimeVal::assign_current_time()
+{
+  g_get_current_time(this);
+}
+
+void TimeVal::add(const TimeVal& rhs)
+{
+  g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
+  g_return_if_fail(rhs.tv_usec >= 0 && rhs.tv_usec < G_USEC_PER_SEC);
+
+  tv_usec += rhs.tv_usec;
+
+  if(tv_usec >= G_USEC_PER_SEC)
+  {
+    tv_usec -= G_USEC_PER_SEC;
+    ++tv_sec;
+  }
+
+  tv_sec += rhs.tv_sec;
+}
+
+void TimeVal::subtract(const TimeVal& rhs)
+{
+  g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
+  g_return_if_fail(rhs.tv_usec >= 0 && rhs.tv_usec < G_USEC_PER_SEC);
+
+  tv_usec -= rhs.tv_usec;
+
+  if(tv_usec < 0)
+  {
+    tv_usec += G_USEC_PER_SEC;
+    --tv_sec;
+  }
+
+  tv_sec -= rhs.tv_sec;
+}
+
+void TimeVal::add_seconds(long seconds)
+{
+  g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
+
+  tv_sec += seconds;
+}
+
+void TimeVal::subtract_seconds(long seconds)
+{
+  g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
+
+  tv_sec -= seconds;
+}
+
+void TimeVal::add_milliseconds(long milliseconds)
+{
+  g_return_if_fail(tv_usec >= 0 && tv_usec < G_USEC_PER_SEC);
+
+  tv_usec += (milliseconds % 1000) * 1000;
+
+  if(tv_usec < 0)
+  {
+    tv_usec += G_USEC_PER_SEC;
+    --tv_sec;
+  }
+  else if(tv_usec >= G_USEC_PER_SEC)
+  {
+    tv_usec -= G_USEC_PER_SEC;
+    ++tv_sec;
+  }
+
+  tv_sec += milliseconds / 1000;
+}
+
+void TimeVal::subtract_milliseconds(long milliseconds)
+{
+  add_milliseconds(-1 * milliseconds);
+}
+
+void TimeVal::add_microseconds(long microseconds)
+{ 
+  g_time_val_add(this, microseconds);
+}
+
+void TimeVal::subtract_microseconds(long microseconds)
+{
+  g_time_val_add(this, -1 * microseconds);
+}
+
+} // namespace Glib
+