Initial commit of upstream NSPR (4.7.3) and NSS3 (3.12).

third_party/nspr/mozilla/nsprpub/lib/msgc/tests/thrashgc.c

Index: third_party/nspr/mozilla/nsprpub/lib/msgc/tests/thrashgc.c
diff --git a/third_party/nspr/mozilla/nsprpub/lib/msgc/tests/thrashgc.c b/third_party/nspr/mozilla/nsprpub/lib/msgc/tests/thrashgc.c
new file mode 100644
index 0000000000000000000000000000000000000000..9d49ec19f308fc8e1d7b11e2e0807f35e78bea3f
--- /dev/null
+++ b/third_party/nspr/mozilla/nsprpub/lib/msgc/tests/thrashgc.c
@@ -0,0 +1,274 @@
+/* -*- 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 ***** */
+
+/***********************************************************************
+** Name: thrashgc
+**
+** Description: test garbace collection functions.
+**
+** 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
+***********************************************************************/
+#include "prthread.h"
+#include "prgc.h"
+#include "prprf.h"
+#include "prinrval.h"
+#include "prlock.h"
+#include "prinit.h"
+#include "prcvar.h"
+
+#ifndef XP_MAC
+#include "private/pprthred.h"
+#else
+#include "pprthred.h"
+#endif
+
+#include <stdio.h>
+#include <memory.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;
+
+static char* progname;
+static PRInt32 loops = 1000;
+static int tix1, tix2, tix3;
+static GCInfo* gcInfo;
+static PRLock* stderrLock;
+
+typedef struct Type1 Type1;
+typedef struct Type2 Type2;
+
+struct Type1 {
+  Type2* atwo;
+  Type1* next;
+};
+
+struct Type2 {
+  void* buf;
+};
+
+static void PR_CALLBACK ScanType1(void *obj) {
+  gcInfo->livePointer(((Type1 *)obj)->atwo);
+  gcInfo->livePointer(((Type1 *)obj)->next);
+}
+
+static void PR_CALLBACK ScanType2(void *obj) {
+  gcInfo->livePointer(((Type2 *)obj)->buf);
+}
+
+static GCType type1 = {
+    ScanType1
+};
+
+static GCType type2 = {
+    ScanType2
+/*  (void (*)(void*)) ScanType2 */
+};
+
+static GCType type3 = {
+  0
+};
+
+Type1* NewType1(void) {
+    Type1* p = (Type1*) PR_AllocMemory(sizeof(Type1), tix1, PR_ALLOC_DOUBLE);
+    PR_ASSERT(p != NULL);
+    return p;
+}
+
+Type2* NewType2(void) {
+    Type2* p = (Type2*) PR_AllocMemory(sizeof(Type2), tix2, PR_ALLOC_DOUBLE);
+    PR_ASSERT(p != NULL);
+    return p;
+}
+
+void* NewBuffer(PRInt32 size) {
+    void* p = PR_AllocMemory(size, tix3, PR_ALLOC_DOUBLE);
+    PR_ASSERT(p != NULL);
+    return p;
+}
+
+/* Allocate alot of garbage */
+static void PR_CALLBACK AllocStuff(void *unused) {
+  PRInt32 i;
+  void* danglingRefs[50];
+  PRIntervalTime start, end;
+  char msg[100];
+
+  start = PR_IntervalNow();
+  for (i = 0; i < loops; i++) {
+    void* p;
+    if (i & 1) {
+      Type1* t1 = NewType1();
+      t1->atwo = NewType2();
+      t1->next = NewType1();
+      t1->atwo->buf = NewBuffer(100);
+      p = t1;
+    } else {
+      Type2* t2 = NewType2();
+      t2->buf = NewBuffer(i & 16383);
+      p = t2;
+    }
+    if ((i % 10) == 0) {
+      memmove(&danglingRefs[0], &danglingRefs[1], 49*sizeof(void*));
+      danglingRefs[49] = p;
+    }
+  }
+  end = PR_IntervalNow();
+  if (debug_mode) PR_snprintf(msg, sizeof(msg), "Thread %p: %ld allocations took %ld ms",
+	      PR_GetCurrentThread(), loops,
+	      PR_IntervalToMilliseconds((PRIntervalTime) (end - start)));
+  PR_Lock(stderrLock);
+#ifndef XP_MAC
+  fprintf(stderr, "%s\n", msg);
+#else
+  if (debug_mode) printf("%s\n", msg);
+#endif
+  PR_Unlock(stderrLock);
+  }
+
+static void usage(char *progname) {
+#ifndef XP_MAC
+  fprintf(stderr, "Usage: %s [-t threads] [-l loops]\n", progname);
+#else
+  printf("Usage: %s [-t threads] [-l loops]\n", progname);
+#endif
+  exit(-1);
+}
+
+static int realMain(int argc, char **argv, char *notused) {
+  int i;
+  int threads = 0;
+
+#ifndef XP_MAC
+  progname = strrchr(argv[0], '/');
+  if (progname == 0) progname = argv[0];
+  for (i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "-t") == 0) {
+      if (i == argc - 1) {
+	usage(progname);
+      }
+      threads = atoi(argv[++i]);
+      if (threads < 0) threads = 0;
+      if (threads > 10000) threads = 10000;
+      continue;
+    }
+    if (strcmp(argv[i], "-l") == 0) {
+      if (i == argc - 1) {
+	usage(progname);
+      }
+      loops = atoi(argv[++i]);
+      continue;
+    }
+    usage(progname);
+  }
+#else
+	threads = 50;
+#endif
+
+  for (i = 0; i < threads; i++) {
+    PRThread* thread;
+
+    /* XXXXX */
+    thread = PR_CreateThreadGCAble(PR_USER_THREAD,  /* thread type */
+			     AllocStuff,  /* start function */
+			     NULL,  /* arg */
+			     PR_PRIORITY_NORMAL,  /* priority */
+			     PR_LOCAL_THREAD,  /* thread scope */
+			     PR_UNJOINABLE_THREAD,  /* thread state */
+			     0);   /* stack size */
+    if (thread == 0) {
+#ifndef XP_MAC
+      fprintf(stderr, "%s: no more threads (only %d were created)\n",
+	      progname, i);
+#else
+      printf("%s: no more threads (only %d were created)\n",
+	      progname, i);
+#endif
+      break;
+    }
+  }
+  AllocStuff(NULL);
+  return 0;
+}
+
+static int padMain(int argc, char **argv) {
+  char pad[512];
+  return realMain(argc, argv, pad);
+}
+
+int main(int argc, char **argv) {
+  int rv;
+
+  debug_mode = 1;
+  
+  PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
+  PR_SetThreadGCAble();
+
+#ifdef XP_MAC
+  SetupMacPrintfLog("thrashgc.log");
+  debug_mode = 1;
+#endif
+
+  PR_InitGC(0, 0, 0, PR_GLOBAL_THREAD);
+  PR_STDIO_INIT();
+  stderrLock = PR_NewLock();
+  tix1 = PR_RegisterType(&type1);
+  tix2 = PR_RegisterType(&type2);
+  tix3 = PR_RegisterType(&type3);
+  gcInfo = PR_GetGCInfo();
+  rv = padMain(argc, argv);
+  printf("PASS\n");
+  PR_Cleanup();
+  return rv;
+}