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source: vbox/trunk/src/libs/xpcom18a4/xpcom/components/nsIServiceManager.idl@ 65902

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1/* ***** BEGIN LICENSE BLOCK *****
2 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
3 *
4 * The contents of this file are subject to the Mozilla Public License Version
5 * 1.1 (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
7 * http://www.mozilla.org/MPL/
8 *
9 * Software distributed under the License is distributed on an "AS IS" basis,
10 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
11 * for the specific language governing rights and limitations under the
12 * License.
13 *
14 * The Original Code is XPCOM.
15 *
16 * The Initial Developer of the Original Code is Netscape Communications.
17 * Portions created by the Initial Developer are Copyright (C) 2001
18 * the Initial Developer. All Rights Reserved.
19 *
20 * Contributor(s):
21 *
22 * Alternatively, the contents of this file may be used under the terms of
23 * either the GNU General Public License Version 2 or later (the "GPL"), or
24 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
25 * in which case the provisions of the GPL or the LGPL are applicable instead
26 * of those above. If you wish to allow use of your version of this file only
27 * under the terms of either the GPL or the LGPL, and not to allow others to
28 * use your version of this file under the terms of the MPL, indicate your
29 * decision by deleting the provisions above and replace them with the notice
30 * and other provisions required by the GPL or the LGPL. If you do not delete
31 * the provisions above, a recipient may use your version of this file under
32 * the terms of any one of the MPL, the GPL or the LGPL.
33 *
34 * ***** END LICENSE BLOCK ***** */
35
36
37#include "nsISupports.idl"
38
39/**
40 * The nsIServiceManager manager interface provides a means to obtain
41 * global services in an application. The service manager depends on the
42 * repository to find and instantiate factories to obtain services.
43 *
44 * Users of the service manager must first obtain a pointer to the global
45 * service manager by calling NS_GetServiceManager. After that,
46 * they can request specific services by calling GetService. When they are
47 * finished they can NS_RELEASE() the service as usual.
48 *
49 * A user of a service may keep references to particular services indefinitely
50 * and only must call Release when it shuts down.
51 *
52 * @status FROZEN
53 */
54
55[scriptable, uuid(8bb35ed9-e332-462d-9155-4a002ab5c958)]
56interface nsIServiceManager : nsISupports
57{
58 /**
59 * getServiceByContractID
60 *
61 * Returns the instance that implements aClass or aContractID and the
62 * interface aIID. This may result in the instance being created.
63 *
64 * @param aClass or aContractID : aClass or aContractID of object
65 * instance requested
66 * @param aIID : IID of interface requested
67 * @param result : resulting service
68 */
69 void getService(in nsCIDRef aClass,
70 in nsIIDRef aIID,
71 [iid_is(aIID),retval] out nsQIResult result);
72
73 void getServiceByContractID(in string aContractID,
74 in nsIIDRef aIID,
75 [iid_is(aIID),retval] out nsQIResult result);
76
77 /**
78 * isServiceInstantiated
79 *
80 * isServiceInstantiated will return a true if the service has already
81 * been created, otherwise false
82 *
83 * @param aClass or aContractID : aClass or aContractID of object
84 * instance requested
85 * @param aIID : IID of interface requested
86 * @param aIID : IID of interface requested
87 */
88 boolean isServiceInstantiated(in nsCIDRef aClass, in nsIIDRef aIID);
89 boolean isServiceInstantiatedByContractID(in string aContractID, in nsIIDRef aIID);
90};
91
92
93%{C++
94#define NS_ERROR_SERVICE_NOT_AVAILABLE NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_XPCOM, 22)
95/**
96 * @status DEPRECATED
97 */
98#define NS_ERROR_SERVICE_NOT_FOUND NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_XPCOM, 22)
99/**
100 * @status DEPRECATED
101 */
102#define NS_ERROR_SERVICE_IN_USE NS_ERROR_GENERATE_SUCCESS(NS_ERROR_MODULE_XPCOM, 23)
103
104// Observing xpcom startup. If you component has not been created, it will be.
105#define NS_XPCOM_STARTUP_OBSERVER_ID "xpcom-startup"
106
107// Observing xpcom shutdown
108#define NS_XPCOM_SHUTDOWN_OBSERVER_ID "xpcom-shutdown"
109
110// Observing xpcom autoregistration. Topics will be 'start' and 'stop'.
111#define NS_XPCOM_AUTOREGISTRATION_OBSERVER_ID "xpcom-autoregistration"
112
113#ifndef MOZILLA_STRICT_API
114#include "nsXPCOM.h"
115#include "nsIServiceManagerUtils.h"
116#include "nsIServiceManagerObsolete.h"
117#endif
118%}
119
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