1 files changed, 177 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/time.c b/nsprpub/pr/tests/time.c
new file mode 100644
index 0000000000..cdb3ef73a8
--- /dev/null
+++ b/nsprpub/pr/tests/time.c
@@ -0,0 +1,177 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * 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);
+    }
+}
+
+int 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;
+}
+
+
+