1 files changed, 81 insertions, 0 deletions
diff --git a/libgfortran/intrinsics/etime.c b/libgfortran/intrinsics/etime.c
new file mode 100644
index 00000000000..89ee539f064
--- /dev/null
+++ b/libgfortran/intrinsics/etime.c
@@ -0,0 +1,81 @@
+/* Implementation of the ETIME intrinsic.
+   Copyright (C) 2004 Free Software Foundation, Inc.
+   Contributed by Steven G. Kargl <kargls@comcast.net>.
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+Libgfortran 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with libgfor; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "config.h"
+#include <sys/types.h>
+#include "libgfortran.h"
+
+#include <stdio.h>
+
+#if defined (HAVE_SYS_TIME_H) && defined (HAVE_SYS_RESOURCE_H)
+#include <sys/time.h>
+#include <sys/resource.h>
+#endif
+
+void
+prefix(etime_sub) (gfc_array_r4 *t, GFC_REAL_4 *result)
+{
+  GFC_REAL_4 tu, ts, tt, *tp;
+  index_type dim;
+
+#if defined(HAVE_SYS_TIME_H) && defined(HAVE_SYS_RESOURCE_H)
+  struct rusage rt;
+
+  if (getrusage(RUSAGE_SELF, &rt) == 0)
+    {
+      tu = (GFC_REAL_4)(rt.ru_utime.tv_sec + 1.e-6 * rt.ru_utime.tv_usec);
+      ts = (GFC_REAL_4)(rt.ru_stime.tv_sec + 1.e-6 * rt.ru_stime.tv_usec);
+      tt = tu + ts;
+    }
+  else
+    {
+      tu = -1.;
+      ts = -1.;
+      tt = -1.;
+    }
+#else
+  tu = -1.;
+  ts = -1.;
+  tt = -1.;
+#endif
+
+  dim = GFC_DESCRIPTOR_RANK (t);
+  if (dim != 1)
+    runtime_error ("Array rank of TARRAY is not 1.");
+
+  if (t->dim[0].stride == 0)
+    t->dim[0].stride = 1;
+
+  tp = t->data;
+
+  *tp = tu;
+  tp += t->dim[0].stride;
+  *tp = ts;
+  *result = tt;
+}
+
+GFC_REAL_4
+prefix(etime) (gfc_array_r4 *t)
+{
+  GFC_REAL_4 val;
+  prefix(etime_sub) (t, &val);
+  return val;
+}