|
1 /* |
|
2 * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Implement class CUsbDevConStarter |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 #include "cusbdevconstarter.h" |
|
20 #include "debug.h" |
|
21 |
|
22 _LIT16( KUsbDevConPath, "z:\\sys\\bin\\usbdevcon.exe" ); |
|
23 _LIT16( KUsbDevConParams, "" ); |
|
24 |
|
25 |
|
26 // ======== MEMBER FUNCTIONS ======== |
|
27 |
|
28 // ---------------------------------------------------------------------------- |
|
29 // NewL |
|
30 // ---------------------------------------------------------------------------- |
|
31 // |
|
32 CUsbDevConStarter* CUsbDevConStarter::NewL() |
|
33 { |
|
34 LOG_FUNC |
|
35 |
|
36 CUsbDevConStarter* self = new ( ELeave ) CUsbDevConStarter(); |
|
37 CleanupStack::PushL( self ); |
|
38 self->ConstructL(); |
|
39 CleanupStack::Pop( self ); |
|
40 return self; |
|
41 } |
|
42 |
|
43 // ---------------------------------------------------------------------------- |
|
44 // Destructor |
|
45 // ---------------------------------------------------------------------------- |
|
46 // |
|
47 CUsbDevConStarter::~CUsbDevConStarter() |
|
48 { |
|
49 LOG_FUNC |
|
50 |
|
51 Cancel(); |
|
52 } |
|
53 |
|
54 // ---------------------------------------------------------------------------- |
|
55 // Start usbdevcon process unless it is already running. |
|
56 // ---------------------------------------------------------------------------- |
|
57 // |
|
58 void CUsbDevConStarter::Start() |
|
59 { |
|
60 LOG_FUNC |
|
61 |
|
62 iStarted = ETrue; |
|
63 if ( EIdle == iState ) |
|
64 { |
|
65 TInt err = iProcess.Create( KUsbDevConPath, KUsbDevConParams ); |
|
66 if ( KErrNone == err ) |
|
67 { |
|
68 //start process and wait until it is constructed |
|
69 iProcess.Resume(); |
|
70 iState = EWaitingRendezvous; |
|
71 iProcess.Rendezvous( iStatus ); |
|
72 SetActive(); |
|
73 } |
|
74 else |
|
75 { |
|
76 //error in starting, no restarting needed |
|
77 iStarted = EFalse; |
|
78 LOG1( "ERROR: RProcess::Create = %d" , err ); |
|
79 } |
|
80 } |
|
81 |
|
82 } |
|
83 |
|
84 |
|
85 // ---------------------------------------------------------------------------- |
|
86 // Logon to usbdevcon process for termination |
|
87 // ---------------------------------------------------------------------------- |
|
88 // |
|
89 void CUsbDevConStarter::Logon() |
|
90 { |
|
91 LOG_FUNC |
|
92 |
|
93 iState = ERunning; |
|
94 |
|
95 //request termination notify |
|
96 iProcess.Logon( iStatus ); |
|
97 SetActive(); |
|
98 } |
|
99 |
|
100 |
|
101 // ---------------------------------------------------------------------------- |
|
102 // StopRestarting prevents usbdevcon process restarting. |
|
103 // ---------------------------------------------------------------------------- |
|
104 // |
|
105 void CUsbDevConStarter::StopRestarting() |
|
106 { |
|
107 LOG_FUNC |
|
108 |
|
109 iStarted = EFalse; |
|
110 } |
|
111 |
|
112 // ---------------------------------------------------------------------------- |
|
113 // RunL handles the process termination. |
|
114 // The process is restarted, if Stop has not been requested and it terminated |
|
115 // without error. |
|
116 // ---------------------------------------------------------------------------- |
|
117 // |
|
118 void CUsbDevConStarter::RunL() |
|
119 { |
|
120 LOG_FUNC |
|
121 |
|
122 LOG2( "iStatus = %d, iState = %d", iStatus.Int(), iState ); |
|
123 switch( iState ) |
|
124 { |
|
125 case EIdle: |
|
126 { |
|
127 break; |
|
128 } |
|
129 case EWaitingRendezvous: |
|
130 { |
|
131 Logon(); |
|
132 break; |
|
133 } |
|
134 case ERunning: |
|
135 { |
|
136 iState = EIdle; |
|
137 iProcess.Close(); |
|
138 |
|
139 //Do not restart, if terminated with error. |
|
140 if( iStarted && ( iStatus == KErrNone ) ) |
|
141 { |
|
142 Start(); |
|
143 } |
|
144 break; |
|
145 } |
|
146 default: |
|
147 LOG( "Unhandled state" ); |
|
148 break; |
|
149 } |
|
150 |
|
151 } |
|
152 |
|
153 // ---------------------------------------------------------------------------- |
|
154 // Log error, if RunL leaves. RunL should never leave. |
|
155 // ---------------------------------------------------------------------------- |
|
156 // |
|
157 TInt CUsbDevConStarter::RunError( TInt aError ) |
|
158 { |
|
159 LOG_FUNC |
|
160 |
|
161 LOG1( "aError = %d", aError ); |
|
162 return KErrNone; |
|
163 } |
|
164 |
|
165 // ---------------------------------------------------------------------------- |
|
166 // DoCancel |
|
167 // ---------------------------------------------------------------------------- |
|
168 // |
|
169 void CUsbDevConStarter::DoCancel() |
|
170 { |
|
171 LOG_FUNC |
|
172 |
|
173 iProcess.LogonCancel( iStatus ); |
|
174 iProcess.Close(); |
|
175 } |
|
176 |
|
177 // ---------------------------------------------------------------------------- |
|
178 // Constructor |
|
179 // ---------------------------------------------------------------------------- |
|
180 // |
|
181 CUsbDevConStarter::CUsbDevConStarter() |
|
182 : CActive( EPriorityStandard ) |
|
183 , iStarted( EFalse ) |
|
184 , iState( EIdle ) |
|
185 { |
|
186 LOG_FUNC |
|
187 |
|
188 CActiveScheduler::Add( this ); |
|
189 } |
|
190 |
|
191 // ---------------------------------------------------------------------------- |
|
192 // ConstructL |
|
193 // ---------------------------------------------------------------------------- |
|
194 // |
|
195 void CUsbDevConStarter::ConstructL() |
|
196 { |
|
197 LOG_FUNC |
|
198 //empty |
|
199 } |
|
200 |
|
201 // End of file |