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source: vbox/trunk/src/libs/xpcom18a4/xpcom/tests/TestServMgr.cpp@ 62330

Last change on this file since 62330 was 1, checked in by vboxsync, 55 years ago

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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 <[email protected]>
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 <stdio.h>
44
45static NS_DEFINE_CID(kIMyServiceCID, NS_IMYSERVICE_CID);
46
47////////////////////////////////////////////////////////////////////////////////
48
49IMyService* myServ = NULL;
50
51nsresult
52BeginTest(int testNumber)
53{
54 nsresult err;
55 NS_ASSERTION(myServ == NULL, "myServ not reset");
56 err = nsServiceManager::GetService(kIMyServiceCID, NS_GET_IID(IMyService),
57 (nsISupports**)&myServ);
58 return err;
59}
60
61nsresult
62EndTest(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 err = nsServiceManager::ReleaseService(kIMyServiceCID, myServ);
71 if (err != NS_OK) return err;
72 myServ = NULL;
73 }
74
75 printf("test %d succeeded\n", testNumber);
76 return NS_OK;
77}
78
79nsresult
80SimpleTest(int testNumber)
81{
82 // This test just gets a service, uses it and releases it.
83
84 nsresult err;
85 err = BeginTest(testNumber);
86 if (err != NS_OK) return err;
87 err = EndTest(testNumber);
88 return err;
89}
90
91////////////////////////////////////////////////////////////////////////////////
92
93nsresult
94AsyncShutdown(int testNumber)
95{
96 nsresult err;
97
98 // If the AsyncShutdown was truly asynchronous and happened on another
99 // thread, we'd have to protect all accesses to myServ throughout this
100 // code with a monitor.
101
102 err = nsServiceManager::UnregisterService(kIMyServiceCID);
103 if (err == NS_ERROR_SERVICE_NOT_AVAILABLE) {
104 printf("async shutdown -- service not found\n");
105 return NS_OK;
106 }
107 return err;
108}
109
110nsresult
111AsyncNoShutdownTest(int testNumber)
112{
113 // This test gets a service, and also gets an async request for shutdown,
114 // but the service doesn't get shut down because some other client (who's
115 // not participating in the async shutdown game as he should) is
116 // continuing to hang onto the service. This causes myServ variable to
117 // get set to NULL, but the service doesn't get unloaded right away as
118 // it should.
119
120 nsresult err;
121
122 err = BeginTest(testNumber);
123 if (err != NS_OK) return err;
124
125 // Create some other user of kIMyServiceCID, preventing it from
126 // really going away:
127 IMyService* otherClient;
128 err = nsServiceManager::GetService(kIMyServiceCID, NS_GET_IID(IMyService),
129 (nsISupports**)&otherClient);
130 if (err != NS_OK) return err;
131
132 err = AsyncShutdown(testNumber);
133 if (err != NS_OK) return err;
134 err = EndTest(testNumber);
135
136 // Finally, release the other client.
137 err = nsServiceManager::ReleaseService(kIMyServiceCID, otherClient);
138
139 return err;
140}
141
142////////////////////////////////////////////////////////////////////////////////
143int
144main(void)
145{
146 nsresult err;
147 int testNumber = 0;
148
149 err = NS_InitXPCOM2(nsnull, nsnull, nsnull);
150 if (NS_FAILED(err)) {
151 printf("NS_InitXPCOM2 failed\n");
152 return -1;
153 }
154
155 err = SimpleTest(++testNumber);
156 if (err != NS_OK)
157 goto error;
158
159 err = AsyncNoShutdownTest(++testNumber);
160 if (err != NS_OK)
161 goto error;
162
163 AsyncShutdown(++testNumber);
164
165 printf("there was great success\n");
166 return 0;
167
168 error:
169 printf("test %d failed\n", testNumber);
170 return -1;
171}
172
173////////////////////////////////////////////////////////////////////////////////
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