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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /nsprpub/pr/tests/priotest.c
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'nsprpub/pr/tests/priotest.c')
-rw-r--r--nsprpub/pr/tests/priotest.c194
1 files changed, 194 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/priotest.c b/nsprpub/pr/tests/priotest.c
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+++ b/nsprpub/pr/tests/priotest.c
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+/* -*- 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 */