diff src/DLD-FUNCTIONS/getrusage.cc @ 2928:295f037b4b3e

[project @ 1997-05-05 05:32:33 by jwe]
author jwe
date Mon, 05 May 1997 05:33:54 +0000
parents
children 38de16594cb4
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/DLD-FUNCTIONS/getrusage.cc	Mon May 05 05:33:54 1997 +0000
@@ -0,0 +1,168 @@
+/*
+
+Copyright (C) 1996, 1997 John W. Eaton
+
+This file is part of Octave.
+
+Octave is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+Octave 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 Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "systime.h"
+
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+
+#if defined (HAVE_TIMES) && defined (HAVE_SYS_TIMES_H)
+
+#if defined (HAVE_SYS_PARAM_H)
+#include <sys/param.h>
+#endif
+#include <sys/times.h>
+
+#if !defined (HZ)
+#if defined (CLK_TCK)
+#define HZ CLK_TCK
+#elif defined (USG)
+#define HZ 100
+#else
+#define HZ 60
+#endif
+#endif
+
+#endif
+
+#include "defun-dld.h"
+#include "help.h"
+#include "oct-map.h"
+#include "sysdep.h"
+#include "ov.h"
+#include "oct-obj.h"
+#include "utils.h"
+
+#ifndef RUSAGE_SELF
+#define RUSAGE_SELF 0
+#endif
+
+// System resource functions.
+
+DEFUN_DLD (getrusage, , ,
+  "getrusage ()\n\
+\n\
+Return system resource statistics.")
+{
+  Octave_map m;
+  Octave_map tv_tmp;
+
+#if defined (HAVE_GETRUSAGE)
+
+  struct rusage ru;
+
+  getrusage (RUSAGE_SELF, &ru);
+
+  tv_tmp ["sec"] = static_cast<double> (ru.ru_utime.tv_sec);
+  tv_tmp ["usec"] = static_cast<double> (ru.ru_utime.tv_usec);
+  m ["utime"] = octave_value (tv_tmp);
+
+  tv_tmp ["sec"] = static_cast<double> (ru.ru_stime.tv_sec);
+  tv_tmp ["usec"] = static_cast<double> (ru.ru_stime.tv_usec);
+  m ["stime"] = octave_value (tv_tmp);
+
+#if ! defined (RUSAGE_TIMES_ONLY)
+  m ["maxrss"] = static_cast<double> (ru.ru_maxrss);
+  m ["ixrss"] = static_cast<double> (ru.ru_ixrss);
+  m ["idrss"] = static_cast<double> (ru.ru_idrss);
+  m ["isrss"] = static_cast<double> (ru.ru_isrss);
+  m ["minflt"] = static_cast<double> (ru.ru_minflt);
+  m ["majflt"] = static_cast<double> (ru.ru_majflt);
+  m ["nswap"] = static_cast<double> (ru.ru_nswap);
+  m ["inblock"] = static_cast<double> (ru.ru_inblock);
+  m ["oublock"] = static_cast<double> (ru.ru_oublock);
+  m ["msgsnd"] = static_cast<double> (ru.ru_msgsnd);
+  m ["msgrcv"] = static_cast<double> (ru.ru_msgrcv);
+  m ["nsignals"] = static_cast<double> (ru.ru_nsignals);
+  m ["nvcsw"] = static_cast<double> (ru.ru_nvcsw);
+  m ["nivcsw"] = static_cast<double> (ru.ru_nivcsw);
+#endif
+
+#else
+#if defined (HAVE_TIMES) && defined (HAVE_SYS_TIMES_H)
+
+  struct tms t;
+
+  times (&t);
+
+  unsigned long ticks;
+  unsigned long seconds;
+  unsigned long fraction;
+
+  ticks = t.tms_utime + t.tms_cutime;
+  fraction = ticks % HZ;
+  seconds = ticks / HZ;
+
+  tv_tmp ["sec"] = static_cast<double> (seconds);
+  tv_tmp ["usec"] = static_cast<double> (fraction * 1e6 / HZ);
+  m ["utime"] = octave_value (tv_tmp);
+
+  ticks = t.tms_stime + t.tms_cstime;
+  fraction = ticks % HZ;
+  seconds = ticks / HZ;
+
+  tv_tmp ["sec"] = static_cast<double> (seconds);
+  tv_tmp ["usec"] = static_cast<double> (fraction * 1e6 / HZ);
+  m ["stime"] = octave_value (tv_tmp);
+
+#else
+
+  tv_tmp ["sec"] = 0.0;
+  tv_tmp ["usec"] = 0.0;
+  m ["utime"] = octave_value (tv_tmp);
+
+  tv_tmp ["sec"] = 0.0;
+  tv_tmp ["usec"] = 0.0;
+  m ["stime"] = octave_value (tv_tmp);
+
+#endif
+
+  m ["maxrss"] = octave_NaN;
+  m ["ixrss"] = octave_NaN;
+  m ["idrss"] = octave_NaN;
+  m ["isrss"] = octave_NaN;
+  m ["minflt"] = octave_NaN;
+  m ["majflt"] = octave_NaN;
+  m ["nswap"] = octave_NaN;
+  m ["inblock"] = octave_NaN;
+  m ["oublock"] = octave_NaN;
+  m ["msgsnd"] = octave_NaN;
+  m ["msgrcv"] = octave_NaN;
+  m ["nsignals"] = octave_NaN;
+  m ["nvcsw"] = octave_NaN;
+  m ["nivcsw"] = octave_NaN;
+
+#endif
+
+  return octave_value (m);
+}
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/