Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtinfo/DtMmdb/utility/xtime.C

@@ -0,0 +1,82 @@
+/*
+ * $XConsortium: xtime.cc /main/13 1996/07/18 15:00:24 drk $
+ *
+ * Copyright (c) 1992 HaL Computer Systems, Inc.  All rights reserved.
+ * UNPUBLISHED -- rights reserved under the Copyright Laws of the United
+ * States.  Use of a copyright notice is precautionary only and does not
+ * imply publication or disclosure.
+ * 
+ * This software contains confidential information and trade secrets of HaL
+ * Computer Systems, Inc.  Use, disclosure, or reproduction is prohibited
+ * without the prior express written permission of HaL Computer Systems, Inc.
+ * 
+ *                         RESTRICTED RIGHTS LEGEND
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions as set forth in subparagraph (c)(l)(ii) of the Rights in
+ * Technical Data and Computer Software clause at DFARS 252.227-7013.
+ *                        HaL Computer Systems, Inc.
+ *                  1315 Dell Avenue, Campbell, CA  95008
+ * 
+ */
+
+
+
+#include "utility/xtime.h"
+
+#ifdef SVR4
+#include <sys/time.h>
+
+#if !defined (_IBMR2) && !defined(sun) && !defined(USL)
+extern "C" { extern int gettimeofday(struct timeval *tp); }
+#endif
+
+#endif
+
+
+xtime::xtime() : 
+
+v_cpu_stamp(0), v_elapsed_stamp(0)
+{
+}
+
+void xtime::stop(float &cpu_time, long &elp_time)
+{
+   cpu_time = -v_cpu_stamp;
+   elp_time = v_elapsed_stamp;
+
+   start();
+
+   cpu_time += v_cpu_stamp;
+   elp_time = v_elapsed_stamp - elp_time;
+}
+
+// add a mark
+
+void xtime::start()
+{
+#if defined (SVR4) && !defined (_IBMR2) && !defined(sun) && !defined(__osf__) && !defined(USL)
+   if ( gettimeofday(&v_tv) != 0 ) {
+#else
+   if ( gettimeofday(&v_tv, &v_tz) != 0 ) {
+#endif
+      MESSAGE(cerr, "xtime::start(): gettimeofday() failed");
+      throw(systemException(errno));
+   } 
+
+   v_elapsed_stamp = v_tv.tv_sec;
+
+#if defined(SVR4) || defined(__osf__)
+   if ( times(&v_time_regs) == -1 ) 
+#else
+   if ( times(&v_time_regs) != 0 ) 
+#endif
+   {
+      MESSAGE(cerr, "xtime::start(): times() failed");
+      throw(systemException(errno));
+   } 
+
+   v_cpu_stamp = 
+      float(v_time_regs.tms_utime + v_time_regs.tms_stime +
+            v_time_regs.tms_cutime + v_time_regs.tms_cstime 
+           ) / 60.0;
+}