xpcom/tests/TestThreadPool.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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   3 /* ***** BEGIN LICENSE BLOCK *****
   4  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   5  *
   6  * The contents of this file are subject to the Mozilla Public License Version
   7  * 1.1 (the "License"); you may not use this file except in compliance with
   8  * the License. You may obtain a copy of the License at
   9  * http://www.mozilla.org/MPL/
  10  *
  11  * Software distributed under the License is distributed on an "AS IS" basis,
  12  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  13  * for the specific language governing rights and limitations under the
  14  * License.
  15  *
  16  * The Original Code is Mozilla code.
  17  *
  18  * The Initial Developer of the Original Code is Google Inc.
  19  * Portions created by the Initial Developer are Copyright (C) 2006
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *  Darin Fisher <darin@meer.net>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
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  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include "nsXPCOM.h"
  42 #include "nsXPCOMCIDInternal.h"
  43 #include "nsIThreadPool.h"
  44 #include "nsComponentManagerUtils.h"
  45 #include "nsCOMPtr.h"
  46 #include "nsIRunnable.h"
  47
  48 class Task : public nsIRunnable
  49 {
  50 public:
  51   NS_DECL_ISUPPORTS
  52
  53   Task(int i) : mIndex(i) {}
  54
  55   NS_IMETHOD Run()
  56   {
  57     printf("###(%d) running from thread: %p\n", mIndex, (void *) PR_GetCurrentThread());
  58     int r = (int) ((float) rand() * 200 / RAND_MAX);
  59     PR_Sleep(PR_MillisecondsToInterval(r));
  60     printf("###(%d) exiting from thread: %p\n", mIndex, (void *) PR_GetCurrentThread());
  61     return NS_OK;
  62   }
  63
  64 private:
  65   int mIndex;
  66 };
  67 NS_IMPL_THREADSAFE_ISUPPORTS1(Task, nsIRunnable)
  68
  69 static nsresult
  70 RunTests()
  71 {
  72   nsCOMPtr<nsIThreadPool> pool = do_CreateInstance(NS_THREADPOOL_CONTRACTID);
  73   NS_ENSURE_STATE(pool);
  74
  75   for (int i = 0; i < 100; ++i) {
  76     nsCOMPtr<nsIRunnable> task = new Task(i);
  77     NS_ENSURE_TRUE(task, NS_ERROR_OUT_OF_MEMORY);
  78
  79     pool->Dispatch(task, NS_DISPATCH_NORMAL);
  80   }
  81
  82   pool->Shutdown();
  83   return NS_OK;
  84 }
  85
  86 int
  87 main(int argc, char **argv)
  88 {
  89   if (NS_FAILED(NS_InitXPCOM2(nsnull, nsnull, nsnull)))
  90     return -1;
  91   RunTests();
  92   NS_ShutdownXPCOM(nsnull);
  93   return 0;
  94 }