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diff --git a/src/libs/xpcom18a4/nsprpub/pr/tests/lock.c b/src/libs/xpcom18a4/nsprpub/pr/tests/lock.c
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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 ***** */
+
+/*
+** File: lock.c
+** Purpose: test basic locking functions
+**
+** Modification History:
+** 14-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
+** The debug mode will print all of the printfs associated with this test.
+** The regress mode will be the default mode. Since the regress tool limits
+** the output to a one line status:PASS or FAIL,all of the printf statements
+** have been handled with an if (debug_mode) statement.
+** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
+** recognize the return code from tha main program.
+**
+** 11-Aug-97 LarryH. Win16 port of NSPR.
+** - Added "PASS", "FAIL" messages on completion.
+** - Change stack variables to static scope variables
+** because of shadow-stack use by Win16
+** - Added PR_CALLBACK attribute to functions called by NSPR
+** - Added command line arguments:
+** - l <num> to control the number of loops
+** - c <num> to control the number of CPUs.
+** (was positional argv).
+**
+**
+***********************************************************************/
+
+/***********************************************************************
+** Includes
+***********************************************************************/
+/* Used to get the command line option */
+#include "plgetopt.h"
+
+#include "prio.h"
+#include "prcmon.h"
+#include "prinit.h"
+#include "prinrval.h"
+#include "prprf.h"
+#include "prlock.h"
+#include "prlog.h"
+#include "prmon.h"
+#include "prmem.h"
+#include "prthread.h"
+#include "prtypes.h"
+
+#include "plstr.h"
+
+#include <stdlib.h>
+
+#if defined(XP_UNIX)
+#include <string.h>
+#endif
+
+#ifdef XP_MAC
+#include "prlog.h"
+#define printf PR_LogPrint
+extern void SetupMacPrintfLog(char *logFile);
+#endif
+
+static PRIntn failed_already=0;
+static PRFileDesc *std_err = NULL;
+static PRBool verbosity = PR_FALSE;
+static PRBool debug_mode = PR_FALSE;
+
+const static PRIntervalTime contention_interval = 50;
+
+typedef struct LockContentious_s {
+ PRLock *ml;
+ PRInt32 loops;
+ PRUint32 contender;
+ PRUint32 contentious;
+ PRIntervalTime overhead;
+ PRIntervalTime interval;
+} LockContentious_t;
+
+typedef struct MonitorContentious_s {
+ PRMonitor *ml;
+ PRInt32 loops;
+ PRUint32 contender;
+ PRUint32 contentious;
+ PRIntervalTime overhead;
+ PRIntervalTime interval;
+} MonitorContentious_t;
+
+
+static PRIntervalTime Sleeper(PRUint32 loops)
+{
+ PRIntervalTime predicted = 0;
+ while (loops-- > 0)
+ {
+ predicted += contention_interval;
+ (void)PR_Sleep(contention_interval);
+ }
+ return predicted;
+} /* Sleeper */
+
+/*
+** BASIC LOCKS
+*/
+static PRIntervalTime MakeLock(PRUint32 loops)
+{
+ PRLock *ml = NULL;
+ while (loops-- > 0)
+ {
+ ml = PR_NewLock();
+ PR_DestroyLock(ml);
+ ml = NULL;
+ }
+ return 0;
+} /* MakeLock */
+
+static PRIntervalTime NonContentiousLock(PRUint32 loops)
+{
+ PRLock *ml = NULL;
+ ml = PR_NewLock();
+ while (loops-- > 0)
+ {
+ PR_Lock(ml);
+ PR_Unlock(ml);
+ }
+ PR_DestroyLock(ml);
+ return 0;
+} /* NonContentiousLock */
+
+static void PR_CALLBACK LockContender(void *arg)
+{
+ LockContentious_t *contention = (LockContentious_t*)arg;
+ while (contention->loops-- > 0)
+ {
+ PR_Lock(contention->ml);
+ contention->contender+= 1;
+ contention->overhead += contention->interval;
+ PR_Sleep(contention->interval);
+ PR_Unlock(contention->ml);
+ }
+} /* LockContender */
+
+static PRIntervalTime ContentiousLock(PRUint32 loops)
+{
+ PRStatus status;
+ PRThread *thread = NULL;
+ LockContentious_t * contention;
+ PRIntervalTime rv, overhead, timein = PR_IntervalNow();
+
+ contention = PR_NEWZAP(LockContentious_t);
+ contention->loops = loops;
+ contention->overhead = 0;
+ contention->ml = PR_NewLock();
+ contention->interval = contention_interval;
+ thread = PR_CreateThread(
+ PR_USER_THREAD, LockContender, contention,
+ PR_PRIORITY_LOW, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
+ PR_ASSERT(thread != NULL);
+
+ overhead = PR_IntervalNow() - timein;
+
+ while (contention->loops-- > 0)
+ {
+ PR_Lock(contention->ml);
+ contention->contentious+= 1;
+ contention->overhead += contention->interval;
+ PR_Sleep(contention->interval);
+ PR_Unlock(contention->ml);
+ }
+
+ timein = PR_IntervalNow();
+ status = PR_JoinThread(thread);
+ PR_DestroyLock(contention->ml);
+ overhead += (PR_IntervalNow() - timein);
+ rv = overhead + contention->overhead;
+ if (verbosity)
+ PR_fprintf(
+ std_err, "Access ratio: %u to %u\n",
+ contention->contentious, contention->contender);
+ PR_Free(contention);
+ return rv;
+} /* ContentiousLock */
+
+/*
+** MONITORS
+*/
+static PRIntervalTime MakeMonitor(PRUint32 loops)
+{
+ PRMonitor *ml = NULL;
+ while (loops-- > 0)
+ {
+ ml = PR_NewMonitor();
+ PR_DestroyMonitor(ml);
+ ml = NULL;
+ }
+ return 0;
+} /* MakeMonitor */
+
+static PRIntervalTime NonContentiousMonitor(PRUint32 loops)
+{
+ PRMonitor *ml = NULL;
+ ml = PR_NewMonitor();
+ while (loops-- > 0)
+ {
+ PR_EnterMonitor(ml);
+ PR_ExitMonitor(ml);
+ }
+ PR_DestroyMonitor(ml);
+ return 0;
+} /* NonContentiousMonitor */
+
+static void PR_CALLBACK TryEntry(void *arg)
+{
+ PRMonitor *ml = (PRMonitor*)arg;
+ if (debug_mode) PR_fprintf(std_err, "Reentrant thread created\n");
+ PR_EnterMonitor(ml);
+ if (debug_mode) PR_fprintf(std_err, "Reentrant thread acquired monitor\n");
+ PR_ExitMonitor(ml);
+ if (debug_mode) PR_fprintf(std_err, "Reentrant thread released monitor\n");
+} /* TryEntry */
+
+static PRIntervalTime ReentrantMonitor(PRUint32 loops)
+{
+ PRStatus status;
+ PRThread *thread;
+ PRMonitor *ml = PR_NewMonitor();
+ if (debug_mode) PR_fprintf(std_err, "\nMonitor created for reentrant test\n");
+
+ PR_EnterMonitor(ml);
+ PR_EnterMonitor(ml);
+ if (debug_mode) PR_fprintf(std_err, "Monitor acquired twice\n");
+
+ thread = PR_CreateThread(
+ PR_USER_THREAD, TryEntry, ml,
+ PR_PRIORITY_LOW, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
+ PR_ASSERT(thread != NULL);
+ PR_Sleep(PR_SecondsToInterval(1));
+
+ PR_ExitMonitor(ml);
+ if (debug_mode) PR_fprintf(std_err, "Monitor released first time\n");
+
+ PR_ExitMonitor(ml);
+ if (debug_mode) PR_fprintf(std_err, "Monitor released second time\n");
+
+ status = PR_JoinThread(thread);
+ if (debug_mode) PR_fprintf(std_err,
+ "Reentrant thread joined %s\n",
+ (status == PR_SUCCESS) ? "successfully" : "in error");
+
+ PR_DestroyMonitor(ml);
+ return 0;
+} /* ReentrantMonitor */
+
+static void PR_CALLBACK MonitorContender(void *arg)
+{
+ MonitorContentious_t *contention = (MonitorContentious_t*)arg;
+ while (contention->loops-- > 0)
+ {
+ PR_EnterMonitor(contention->ml);
+ contention->contender+= 1;
+ contention->overhead += contention->interval;
+ PR_Sleep(contention->interval);
+ PR_ExitMonitor(contention->ml);
+ }
+} /* MonitorContender */
+
+static PRUint32 ContentiousMonitor(PRUint32 loops)
+{
+ PRStatus status;
+ PRThread *thread = NULL;
+ MonitorContentious_t * contention;
+ PRIntervalTime rv, overhead, timein = PR_IntervalNow();
+
+ contention = PR_NEWZAP(MonitorContentious_t);
+ contention->loops = loops;
+ contention->overhead = 0;
+ contention->ml = PR_NewMonitor();
+ contention->interval = contention_interval;
+ thread = PR_CreateThread(
+ PR_USER_THREAD, MonitorContender, contention,
+ PR_PRIORITY_LOW, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
+ PR_ASSERT(thread != NULL);
+
+ overhead = PR_IntervalNow() - timein;
+
+ while (contention->loops-- > 0)
+ {
+ PR_EnterMonitor(contention->ml);
+ contention->contentious+= 1;
+ contention->overhead += contention->interval;
+ PR_Sleep(contention->interval);
+ PR_ExitMonitor(contention->ml);
+ }
+
+ timein = PR_IntervalNow();
+ status = PR_JoinThread(thread);
+ PR_DestroyMonitor(contention->ml);
+ overhead += (PR_IntervalNow() - timein);
+ rv = overhead + contention->overhead;
+ if (verbosity)
+ PR_fprintf(
+ std_err, "Access ratio: %u to %u\n",
+ contention->contentious, contention->contender);
+ PR_Free(contention);
+ return rv;
+} /* ContentiousMonitor */
+
+/*
+** CACHED MONITORS
+*/
+static PRIntervalTime NonContentiousCMonitor(PRUint32 loops)
+{
+ MonitorContentious_t contention;
+ while (loops-- > 0)
+ {
+ PR_CEnterMonitor(&contention);
+ PR_CExitMonitor(&contention);
+ }
+ return 0;
+} /* NonContentiousCMonitor */
+
+static void PR_CALLBACK Contender(void *arg)
+{
+ MonitorContentious_t *contention = (MonitorContentious_t*)arg;
+ while (contention->loops-- > 0)
+ {
+ PR_CEnterMonitor(contention);
+ contention->contender+= 1;
+ contention->overhead += contention->interval;
+ PR_Sleep(contention->interval);
+ PR_CExitMonitor(contention);
+ }
+} /* Contender */
+
+static PRIntervalTime ContentiousCMonitor(PRUint32 loops)
+{
+ PRStatus status;
+ PRThread *thread = NULL;
+ MonitorContentious_t * contention;
+ PRIntervalTime overhead, timein = PR_IntervalNow();
+
+ contention = PR_NEWZAP(MonitorContentious_t);
+ contention->ml = NULL;
+ contention->loops = loops;
+ contention->interval = contention_interval;
+ thread = PR_CreateThread(
+ PR_USER_THREAD, Contender, contention,
+ PR_PRIORITY_LOW, PR_LOCAL_THREAD, PR_JOINABLE_THREAD, 0);
+ PR_ASSERT(thread != NULL);
+
+ overhead = PR_IntervalNow() - timein;
+
+ while (contention->loops-- > 0)
+ {
+ PR_CEnterMonitor(contention);
+ contention->contentious+= 1;
+ contention->overhead += contention->interval;
+ PR_Sleep(contention->interval);
+ PR_CExitMonitor(contention);
+ }
+
+ timein = PR_IntervalNow();
+ status = PR_JoinThread(thread);
+ overhead += (PR_IntervalNow() - timein);
+ overhead += overhead + contention->overhead;
+ if (verbosity)
+ PR_fprintf(
+ std_err, "Access ratio: %u to %u\n",
+ contention->contentious, contention->contender);
+ PR_Free(contention);
+ return overhead;
+} /* ContentiousCMonitor */
+
+static PRIntervalTime Test(
+ const char* msg, PRUint32 (*test)(PRUint32 loops),
+ PRUint32 loops, PRIntervalTime overhead)
+{
+ /*
+ * overhead - overhead not measured by the test.
+ * duration - wall clock time it took to perform test.
+ * predicted - extra time test says should not be counted
+ *
+ * Time accountable to the test is duration - overhead - predicted
+ * All times are Intervals and accumulated for all iterations.
+ */
+ PRFloat64 elapsed;
+ PRIntervalTime accountable, duration;
+ PRUintn spaces = PL_strlen(msg);
+ PRIntervalTime timeout, timein = PR_IntervalNow();
+ PRIntervalTime predicted = test(loops);
+ timeout = PR_IntervalNow();
+ duration = timeout - timein;
+
+ if (debug_mode)
+ {
+ accountable = duration - predicted;
+ accountable -= overhead;
+ elapsed = (PRFloat64)PR_IntervalToMicroseconds(accountable);
+ PR_fprintf(PR_STDOUT, "%s:", msg);
+ while (spaces++ < 50) PR_fprintf(PR_STDOUT, " ");
+ if ((PRInt32)accountable < 0)
+ PR_fprintf(PR_STDOUT, "*****.** usecs/iteration\n");
+ else
+ PR_fprintf(PR_STDOUT, "%8.2f usecs/iteration\n", elapsed/loops);
+ }
+ return duration;
+} /* Test */
+
+int main(int argc, char **argv)
+{
+ PRBool rv = PR_TRUE;
+ PRIntervalTime duration;
+ PRUint32 cpu, cpus = 2, loops = 100;
+
+
+ PR_STDIO_INIT();
+ PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
+ {
+ /* 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.
+ Command line argument -l <num> sets the number of loops.
+ Command line argument -c <num> sets the number of cpus.
+ Usage: lock [-d] [-l <num>] [-c <num>]
+ */
+ PLOptStatus os;
+ PLOptState *opt = PL_CreateOptState(argc, argv, "dvl:c:");
+ 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 'v': /* debug mode */
+ verbosity = PR_TRUE;
+ break;
+ case 'l': /* number of loops */
+ loops = atoi(opt->value);
+ break;
+ case 'c': /* number of cpus */
+ cpus = atoi(opt->value);
+ break;
+ default:
+ break;
+ }
+ }
+ PL_DestroyOptState(opt);
+ }
+
+ /* main test */
+ PR_SetConcurrency(8);
+
+#ifdef XP_MAC
+ SetupMacPrintfLog("lock.log");
+ debug_mode = 1;
+#endif
+
+ if (loops == 0) loops = 100;
+ if (debug_mode)
+ {
+ std_err = PR_STDERR;
+ PR_fprintf(std_err, "Lock: Using %d loops\n", loops);
+ }
+
+ if (cpus == 0) cpus = 2;
+ if (debug_mode) PR_fprintf(std_err, "Lock: Using %d cpu(s)\n", cpus);
+
+ (void)Sleeper(10); /* try filling in the caches */
+
+ for (cpu = 1; cpu <= cpus; ++cpu)
+ {
+ if (debug_mode) PR_fprintf(std_err, "\nLock: Using %d CPU(s)\n", cpu);
+ PR_SetConcurrency(cpu);
+
+ duration = Test("Overhead of PR_Sleep", Sleeper, loops, 0);
+ duration = 0;
+
+ (void)Test("Lock creation/deletion", MakeLock, loops, 0);
+ (void)Test("Lock non-contentious locking/unlocking", NonContentiousLock, loops, 0);
+ (void)Test("Lock contentious locking/unlocking", ContentiousLock, loops, duration);
+ (void)Test("Monitor creation/deletion", MakeMonitor, loops, 0);
+ (void)Test("Monitor non-contentious locking/unlocking", NonContentiousMonitor, loops, 0);
+ (void)Test("Monitor contentious locking/unlocking", ContentiousMonitor, loops, duration);
+
+ (void)Test("Cached monitor non-contentious locking/unlocking", NonContentiousCMonitor, loops, 0);
+ (void)Test("Cached monitor contentious locking/unlocking", ContentiousCMonitor, loops, duration);
+
+ (void)ReentrantMonitor(loops);
+ }
+
+ if (debug_mode)
+ PR_fprintf(
+ std_err, "%s: test %s\n", "Lock(mutex) test",
+ ((rv) ? "passed" : "failed"));
+ else {
+ if (!rv)
+ failed_already=1;
+ }
+
+ if(failed_already)
+ {
+ PR_fprintf(PR_STDOUT, "FAIL\n");
+ return 1;
+ }
+ else
+ {
+ PR_fprintf(PR_STDOUT, "PASS\n");
+ return 0;
+ }
+
+} /* main */
+
+/* testlock.c */
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