xpcom/tests/TestServMgr.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is mozilla.org code.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *   Pierre Phaneuf <pp@ludusdesign.com>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either of the GNU General Public License Version 2 or later (the "GPL"),
  27  * or 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
  29  * of those above. If you wish to allow use of your version of this file only
  30  * under the terms of either the GPL or the LGPL, and not to allow others to
  31  * use your version of this file under the terms of the MPL, indicate your
  32  * decision by deleting the provisions above and replace them with the notice
  33  * and other provisions required by the GPL or the LGPL. If you do not delete
  34  * the provisions above, a recipient may use your version of this file under
  35  * the terms of any one of the MPL, the GPL or the LGPL.
  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #include "MyService.h"
  40 #include "nsXPCOM.h"
  41 #include "nsIServiceManager.h"
  42 #include "nsIComponentManager.h"
  43 #include "nsServiceManagerUtils.h"
  44 #include <stdio.h>
  45
  46 static NS_DEFINE_CID(kIMyServiceCID, NS_IMYSERVICE_CID);
  47
  48 ////////////////////////////////////////////////////////////////////////////////
  49
  50 IMyService* myServ = NULL;
  51
  52 nsresult
  53 BeginTest(int testNumber)
  54 {
  55     nsresult err;
  56     NS_ASSERTION(myServ == NULL, "myServ not reset");
  57     err = CallGetService(kIMyServiceCID, &myServ);
  58     return err;
  59 }
  60
  61 nsresult
  62 EndTest(int testNumber)
  63 {
  64     nsresult err = NS_OK;
  65
  66     if (myServ) {
  67         err = myServ->Doit();
  68         if (err != NS_OK) return err;
  69
  70         NS_RELEASE(myServ);
  71     }
  72
  73     printf("test %d succeeded\n", testNumber);
  74     return NS_OK;
  75 }
  76
  77 nsresult
  78 SimpleTest(int testNumber)
  79 {
  80     // This test just gets a service, uses it and releases it.
  81
  82     nsresult err;
  83     err = BeginTest(testNumber);
  84     if (err != NS_OK) return err;
  85     err = EndTest(testNumber);
  86     return err;
  87 }
  88
  89 ////////////////////////////////////////////////////////////////////////////////
  90
  91 nsresult
  92 AsyncShutdown(int testNumber)
  93 {
  94     nsresult err = NS_OK;
  95
  96     // If the AsyncShutdown was truly asynchronous and happened on another
  97     // thread, we'd have to protect all accesses to myServ throughout this
  98     // code with a monitor.
  99
 100     // XXX-darin: say what?!?
 101
 102     /*
 103     err = nsServiceManager::UnregisterService(kIMyServiceCID);
 104     if (err == NS_ERROR_SERVICE_NOT_AVAILABLE) {
 105         printf("async shutdown -- service not found\n");
 106         return NS_OK;
 107     }
 108     */
 109
 110     return err;
 111 }
 112
 113 nsresult
 114 AsyncNoShutdownTest(int testNumber)
 115 {
 116     // This test gets a service, and also gets an async request for shutdown,
 117     // but the service doesn't get shut down because some other client (who's
 118     // not participating in the async shutdown game as he should) is
 119     // continuing to hang onto the service. This causes myServ variable to
 120     // get set to NULL, but the service doesn't get unloaded right away as
 121     // it should.
 122
 123     nsresult err;
 124
 125     err = BeginTest(testNumber);
 126     if (err != NS_OK) return err;
 127
 128     // Create some other user of kIMyServiceCID, preventing it from
 129     // really going away:
 130     IMyService* otherClient;
 131     err = CallGetService(kIMyServiceCID, &otherClient);
 132     if (err != NS_OK) return err;
 133
 134     err = AsyncShutdown(testNumber);
 135     if (err != NS_OK) return err;
 136     err = EndTest(testNumber);
 137
 138     // Finally, release the other client.
 139     NS_RELEASE(otherClient);
 140
 141     return err;
 142 }
 143
 144 ////////////////////////////////////////////////////////////////////////////////
 145 int
 146 main(void)
 147 {
 148     nsresult err;
 149     int testNumber = 0;
 150
 151     err = NS_InitXPCOM2(nsnull, nsnull, nsnull);
 152     if (NS_FAILED(err)) {
 153         printf("NS_InitXPCOM2 failed\n");
 154         return -1;
 155     }
 156
 157     err = SimpleTest(++testNumber);
 158     if (err != NS_OK)
 159         goto error;
 160
 161     err = AsyncNoShutdownTest(++testNumber);
 162     if (err != NS_OK)
 163         goto error;
 164
 165     AsyncShutdown(++testNumber);
 166
 167     printf("there was great success\n");
 168     return 0;
 169
 170   error:
 171     printf("test %d failed\n", testNumber);
 172     return -1;
 173 }
 174
 175 ////////////////////////////////////////////////////////////////////////////////