Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 276 insertions, 0 deletions

diff --git a/src/libs/xpcom18a4/nsprpub/pr/tests/lockfile.c b/src/libs/xpcom18a4/nsprpub/pr/tests/lockfile.c
new file mode 100644
index 00000000..27f8821e
--- /dev/null
+++ b/src/libs/xpcom18a4/nsprpub/pr/tests/lockfile.c
@@ -0,0 +1,276 @@
+/* -*- 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:        lockfile.c
+** Purpose:     test basic locking functions
+**              Just because this times stuff, don't think its a perforamnce
+**              test!!!
+**
+** Modification History:
+** 19-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.
+***********************************************************************/
+/***********************************************************************
+** Includes
+***********************************************************************/
+/* Used to get the command line option */
+#include "plgetopt.h"
+
+#include "prcmon.h"
+#include "prerror.h"
+#include "prinit.h"
+#include "prinrval.h"
+#include "prlock.h"
+#include "prlog.h"
+#include "prmon.h"
+#include "prthread.h"
+#include "prtypes.h"
+
+#ifndef XP_MAC
+#include "private/pprio.h"
+#else
+#include "pprio.h"
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef XP_MAC
+#include "prlog.h"
+#define printf PR_LogPrint
+extern void SetupMacPrintfLog(char *logFile);
+#endif
+
+PRIntn failed_already=0;
+PRIntn debug_mode;
+
+const static PRIntervalTime contention_interval = 50;
+
+typedef struct LockContentious_s {
+    PRLock *ml;
+    PRInt32 loops;
+    PRIntervalTime overhead;
+    PRIntervalTime interval;
+} LockContentious_t;
+
+#define LOCKFILE "prlock.fil"
+
+
+
+static PRIntervalTime NonContentiousLock(PRInt32 loops)
+{
+    PRFileDesc *_lockfile;
+    while (loops-- > 0)
+    {
+        _lockfile = PR_Open(LOCKFILE, PR_CREATE_FILE|PR_RDWR, 0666);
+        if (!_lockfile) {
+            if (debug_mode) printf(
+                "could not create lockfile: %d [%d]\n",
+                PR_GetError(), PR_GetOSError());
+            return PR_INTERVAL_NO_TIMEOUT;
+        }
+        PR_LockFile(_lockfile);
+        PR_UnlockFile(_lockfile);
+        PR_Close(_lockfile);
+    }
+    return 0;
+}  /* NonContentiousLock */
+
+static void PR_CALLBACK LockContender(void *arg)
+{
+    LockContentious_t *contention = (LockContentious_t*)arg;
+    PRFileDesc *_lockfile;
+    while (contention->loops-- > 0)
+    {
+        _lockfile = PR_Open(LOCKFILE, PR_CREATE_FILE|PR_RDWR, 0666);
+        if (!_lockfile) {
+            if (debug_mode) printf(
+                "could not create lockfile: %d [%d]\n",
+                PR_GetError(), PR_GetOSError());
+            break;
+        }
+        PR_LockFile(_lockfile);
+        PR_Sleep(contention->interval);
+        PR_UnlockFile(_lockfile);
+        PR_Close(_lockfile);
+    }
+
+}  /* LockContender */
+
+/*
+** Win16 requires things passed to Threads not be on the stack
+*/
+static LockContentious_t contention;
+
+static PRIntervalTime ContentiousLock(PRInt32 loops)
+{
+    PRStatus status;
+    PRThread *thread = NULL;
+    PRIntervalTime overhead, timein = PR_IntervalNow();
+
+    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.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);
+    return overhead + contention.overhead;
+}  /* ContentiousLock */
+
+static PRIntervalTime Test(
+    const char* msg, PRIntervalTime (*test)(PRInt32 loops),
+    PRInt32 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 = strlen(msg);
+    PRIntervalTime timeout, timein = PR_IntervalNow();
+    PRIntervalTime predicted = test(loops);
+    timeout = PR_IntervalNow();
+    duration = timeout - timein;
+    accountable = duration - predicted;
+    accountable -= overhead;
+    elapsed = (PRFloat64)PR_IntervalToMicroseconds(accountable);
+    if (debug_mode) printf("%s:", msg);
+    while (spaces++ < 50) if (debug_mode) printf(" ");
+    if ((PRInt32)accountable < 0) {
+        if (debug_mode) printf("*****.** usecs/iteration\n");
+    } else {
+        if (debug_mode) printf("%8.2f usecs/iteration\n", elapsed/loops);
+    }
+    return duration;
+}  /* Test */
+
+int main(int argc,  char **argv)
+{
+    PRIntervalTime duration;
+    PRUint32 cpu, cpus = 2;
+    PRInt32 loops = 100;
+
+	
+	/* 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);
+
+ /* main test */
+	
+    PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
+    PR_STDIO_INIT();
+
+#ifdef XP_MAC
+	SetupMacPrintfLog("lockfile.log");
+	debug_mode = 1;
+#endif
+
+    if (argc > 1) loops = atoi(argv[1]);
+    if (loops == 0) loops = 100;
+    if (debug_mode) printf("Lock: Using %d loops\n", loops);
+
+    cpus = (argc < 3) ? 2 : atoi(argv[2]);
+    if (cpus == 0) cpus = 2;
+    if (debug_mode) printf("Lock: Using %d cpu(s)\n", cpus);
+
+
+    for (cpu = 1; cpu <= cpus; ++cpu)
+    {
+        if (debug_mode) printf("\nLockFile: Using %d CPU(s)\n", cpu);
+        PR_SetConcurrency(cpu);
+        
+        duration = Test("LockFile non-contentious locking/unlocking", NonContentiousLock, loops, 0);
+        (void)Test("LockFile contentious locking/unlocking", ContentiousLock, loops, duration);
+    }
+
+    PR_Delete(LOCKFILE);  /* try to get rid of evidence */
+
+    if (debug_mode) printf("%s: test %s\n", "Lock(mutex) test", ((failed_already) ? "failed" : "passed"));
+	if(failed_already)	
+		return 1;
+	else
+		return 0;
+}  /* main */
+
+/* testlock.c */