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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/*
+ * Program to test different ways to get the time; right now it is tuned
+ * only for solaris.
+ * solaris results (100000 iterations):
+ * time to get time with time(): 4.63 usec avg, 463 msec total
+ * time to get time with gethrtime(): 2.17 usec avg, 217 msec total
+ * time to get time with gettimeofday(): 1.25 usec avg, 125 msec total
+ *
+ *
+ */
+/***********************************************************************
+** Includes
+***********************************************************************/
+/* Used to get the command line option */
+#include "plgetopt.h"
+
+#include "nspr.h"
+#include "prpriv.h"
+#include "prinrval.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+
+#define DEFAULT_COUNT 100000
+PRInt32 count;
+
+time_t itime;
+hrtime_t ihrtime;
+
+void
+ftime_init()
+{
+ itime = time(NULL);
+ ihrtime = gethrtime();
+}
+
+time_t
+ftime()
+{
+ hrtime_t now = gethrtime();
+
+ return itime + ((now - ihrtime) / 1000000000ll);
+}
+
+static void timeTime(void)
+{
+ PRInt32 index = count;
+ time_t rv;
+
+ for (;index--;)
+ rv = time(NULL);
+}
+
+static void timeGethrtime(void)
+{
+ PRInt32 index = count;
+ time_t rv;
+
+ for (;index--;)
+ rv = ftime();
+}
+
+static void timeGettimeofday(void)
+{
+ PRInt32 index = count;
+ time_t rv;
+ struct timeval tp;
+
+ for (;index--;)
+ rv = gettimeofday(&tp, NULL);
+}
+
+static void timePRTime32(void)
+{
+ PRInt32 index = count;
+ PRInt32 rv32;
+ PRTime q;
+ PRTime rv;
+
+ LL_I2L(q, 1000000);
+
+ for (;index--;) {
+ rv = PR_Now();
+ LL_DIV(rv, rv, q);
+ LL_L2I(rv32, rv);
+ }
+}
+
+static void timePRTime64(void)
+{
+ PRInt32 index = count;
+ PRTime rv;
+
+ for (;index--;)
+ rv = PR_Now();
+}
+
+/************************************************************************/
+
+static void Measure(void (*func)(void), const char *msg)
+{
+ PRIntervalTime start, stop;
+ double d;
+ PRInt32 tot;
+
+ start = PR_IntervalNow();
+ (*func)();
+ stop = PR_IntervalNow();
+
+ d = (double)PR_IntervalToMicroseconds(stop - start);
+ tot = PR_IntervalToMilliseconds(stop-start);
+
+ if (debug_mode) printf("%40s: %6.2f usec avg, %d msec total\n", msg, d / count, tot);
+}
+
+void main(int argc, char **argv)
+{
+ /* The command line argument: -d is used to determine if the test is being run
+ in debug mode. The regress tool requires only one line output:PASS or FAIL.
+ All of the printfs associated with this test has been handled with a if (debug_mode)
+ test.
+ Usage: test_name -d
+ */
+ PLOptStatus os;
+ PLOptState *opt = PL_CreateOptState(argc, argv, "d:");
+ while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+ {
+ if (PL_OPT_BAD == os) continue;
+ switch (opt->option)
+ {
+ case 'd': /* debug mode */
+ debug_mode = 1;
+ break;
+ default:
+ break;
+ }
+ }
+ PL_DestroyOptState(opt);
+
+ PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
+ PR_STDIO_INIT();
+
+ if (argc > 1) {
+ count = atoi(argv[1]);
+ } else {
+ count = DEFAULT_COUNT;
+ }
+
+ ftime_init();
+
+ Measure(timeTime, "time to get time with time()");
+ Measure(timeGethrtime, "time to get time with gethrtime()");
+ Measure(timeGettimeofday, "time to get time with gettimeofday()");
+ Measure(timePRTime32, "time to get time with PR_Time() (32bit)");
+ Measure(timePRTime64, "time to get time with PR_Time() (64bit)");
+
+ PR_Cleanup();
+ return 0;
+}
+
+
+