Add m-esr52 at 52.6.0

1 files changed, 194 insertions, 0 deletions

diff --git a/nsprpub/pr/tests/priotest.c b/nsprpub/pr/tests/priotest.c
new file mode 100644
index 000000000..577d55333
--- /dev/null
+++ b/nsprpub/pr/tests/priotest.c
@@ -0,0 +1,194 @@
+/* -*- 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/. */
+
+/*
+ * File:        priotest.c
+ * Purpose:     testing priorities
+ */
+
+#include "prcmon.h"
+#include "prinit.h"
+#include "prinrval.h"
+#include "prlock.h"
+#include "prlog.h"
+#include "prmon.h"
+#include "prprf.h"
+#include "prthread.h"
+#include "prtypes.h"
+
+#include "plerror.h"
+#include "plgetopt.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define DEFAULT_DURATION 5
+
+static PRBool failed = PR_FALSE;
+static PRIntervalTime oneSecond;
+static PRFileDesc *debug_out = NULL;
+static PRBool debug_mode = PR_FALSE;
+
+static PRUint32 PerSecond(PRIntervalTime timein)
+{
+    PRUint32 loop = 0;
+    while (((PRIntervalTime)(PR_IntervalNow()) - timein) < oneSecond)
+        loop += 1;
+    return loop;
+}  /* PerSecond */
+
+static void PR_CALLBACK Low(void *arg)
+{
+    PRUint32 t3 = 0, t2 = 0, t1 = 0, t0, *tn = (PRUint32*)arg;
+    while (1)
+    {
+        t0 = PerSecond(PR_IntervalNow());
+        *tn = (t3 + 3 * t2 + 3 * t1 + t0) / 8;
+        t3 = t2; t2 = t1; t1 = t0;
+    }
+}  /* Low */
+
+static void PR_CALLBACK High(void *arg)
+{
+    PRUint32 t3 = 0, t2 = 0, t1 = 0, t0, *tn = (PRUint32*)arg;
+    while (1)
+    {
+        PRIntervalTime timein = PR_IntervalNow();
+        PR_Sleep(oneSecond >> 2);  /* 0.25 seconds */
+        t0 = PerSecond(timein);
+        *tn = (t3 + 3 * t2 + 3 * t1 + t0) / 8;
+        t3 = t2; t2 = t1; t1 = t0;
+    }
+}  /* High */
+
+static void Help(void)
+{
+    PR_fprintf(
+		debug_out, "Usage: priotest [-d] [-c n]\n");
+    PR_fprintf(
+		debug_out, "-c n\tduration of test in seconds (default: %d)\n", DEFAULT_DURATION);
+    PR_fprintf(
+        debug_out, "-d\tturn on debugging output (default: FALSE)\n");
+}  /* Help */
+
+static void RudimentaryTests(void)
+{
+    /*
+    ** Try some rudimentary tests like setting valid priority and
+    ** getting it back, or setting invalid priorities and getting
+    ** back a valid answer.
+    */
+    PRThreadPriority priority;
+    PR_SetThreadPriority(PR_GetCurrentThread(), PR_PRIORITY_URGENT);
+    priority = PR_GetThreadPriority(PR_GetCurrentThread());
+    failed = ((PR_TRUE == failed) || (PR_PRIORITY_URGENT != priority))
+        ? PR_TRUE : PR_FALSE;
+    if (debug_mode && (PR_PRIORITY_URGENT != priority))
+    {
+        PR_fprintf(debug_out, "PR_[S/G]etThreadPriority() failed\n");
+    }
+
+
+    PR_SetThreadPriority(
+        PR_GetCurrentThread(), (PRThreadPriority)(PR_PRIORITY_FIRST - 1));
+    priority = PR_GetThreadPriority(PR_GetCurrentThread());
+    failed = ((PR_TRUE == failed) || (PR_PRIORITY_FIRST != priority))
+        ? PR_TRUE : PR_FALSE;
+    if (debug_mode && (PR_PRIORITY_FIRST != priority))
+    {
+        PR_fprintf(debug_out, "PR_SetThreadPriority(-1) failed\n");
+    }
+
+    PR_SetThreadPriority(
+        PR_GetCurrentThread(), (PRThreadPriority)(PR_PRIORITY_LAST + 1));
+    priority = PR_GetThreadPriority(PR_GetCurrentThread());
+    failed = ((PR_TRUE == failed) || (PR_PRIORITY_LAST != priority))
+        ? PR_TRUE : PR_FALSE;
+    if (debug_mode && (PR_PRIORITY_LAST != priority))
+    {
+        PR_fprintf(debug_out, "PR_SetThreadPriority(+1) failed\n");
+    }
+
+}  /* RudimentataryTests */
+
+static void CreateThreads(PRUint32 *lowCount, PRUint32 *highCount)
+{
+    (void)PR_CreateThread(
+        PR_USER_THREAD, Low, lowCount, PR_PRIORITY_LOW,
+        PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
+    (void)PR_CreateThread(
+        PR_USER_THREAD, High, highCount, PR_PRIORITY_HIGH,
+        PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
+} /* CreateThreads */
+
+int main(int argc, char **argv)
+{
+    PLOptStatus os;
+    PRIntn duration = DEFAULT_DURATION;
+    PRUint32 totalCount, highCount = 0, lowCount = 0;
+	PLOptState *opt = PL_CreateOptState(argc, argv, "hdc:");
+
+    debug_out = PR_STDOUT;
+    oneSecond = PR_SecondsToInterval(1);
+
+	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+    {
+		if (PL_OPT_BAD == os) continue;
+        switch (opt->option)
+        {
+        case 'd':  /* debug mode */
+			debug_mode = PR_TRUE;
+            break;
+        case 'c':  /* test duration */
+			duration = atoi(opt->value);
+            break;
+        case 'h':  /* help message */
+         default:
+			Help();
+			return 2;
+        }
+    }
+	PL_DestroyOptState(opt);
+    PR_STDIO_INIT();
+
+    if (duration == 0) duration = DEFAULT_DURATION;
+
+    RudimentaryTests();
+
+    printf("Priority test: running for %d seconds\n\n", duration);
+
+    (void)PerSecond(PR_IntervalNow());
+    totalCount = PerSecond(PR_IntervalNow());
+
+    PR_SetThreadPriority(PR_GetCurrentThread(), PR_PRIORITY_URGENT);
+
+    if (debug_mode)
+    {
+        PR_fprintf(debug_out,
+		    "The high priority thread should get approximately three\n");
+        PR_fprintf( debug_out,
+		    "times what the low priority thread manages. A maximum of \n");
+        PR_fprintf( debug_out, "%d cycles are available.\n\n", totalCount);
+    }
+
+    duration = (duration + 4) / 5;
+    CreateThreads(&lowCount, &highCount);
+    while (duration--)
+    {
+        PRIntn loop = 5;
+        while (loop--) PR_Sleep(oneSecond);
+        if (debug_mode)
+            PR_fprintf(debug_out, "high : low :: %d : %d\n", highCount, lowCount);
+    }
+
+
+    PR_ProcessExit((failed) ? 1 : 0);
+
+	PR_NOT_REACHED("You can't get here -- but you did!");
+	return 1;  /* or here */
+
+}  /* main */
+
+/* priotest.c */