|
1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of the License "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // Implements a Symbian OS server that exposes the RUsbMassStorage API |
|
15 // |
|
16 // |
|
17 |
|
18 /** |
|
19 @file |
|
20 @internalTechnology |
|
21 */ |
|
22 |
|
23 #include <e32svr.h> |
|
24 #include "usbmsshared.h" |
|
25 #include "cusbmassstorageserver.h" |
|
26 #include "cusbmassstoragesession.h" |
|
27 #include "cusbmassstoragecontroller.h" |
|
28 #include "massstoragedebug.h" |
|
29 |
|
30 #include "usbmsserversecuritypolicy.h" |
|
31 /** |
|
32 Constructs a USB mass storage Server |
|
33 |
|
34 @return a pointer to CUsbMassStorageServer object |
|
35 */ |
|
36 CUsbMassStorageServer* CUsbMassStorageServer::NewLC(CUsbMassStorageController& aController) |
|
37 { |
|
38 CUsbMassStorageServer* r = new (ELeave) CUsbMassStorageServer(aController); |
|
39 CleanupStack::PushL(r); |
|
40 r->StartL(KUsbMsServerName); |
|
41 return r; |
|
42 } |
|
43 |
|
44 /** |
|
45 Destructor |
|
46 */ |
|
47 CUsbMassStorageServer::~CUsbMassStorageServer() |
|
48 { |
|
49 // Intentionally left blank |
|
50 } |
|
51 |
|
52 |
|
53 /** |
|
54 Constructor |
|
55 |
|
56 @param aController a USB mass storage controller reference |
|
57 */ |
|
58 CUsbMassStorageServer::CUsbMassStorageServer(CUsbMassStorageController& aController) |
|
59 : CPolicyServer(EPriorityHigh,KUsbMsServerPolicy) |
|
60 , iController(aController) |
|
61 { |
|
62 __PRINT(_L("CUsbMassStorageServer::CUsbMassStorageServer\n")); |
|
63 } |
|
64 |
|
65 /** |
|
66 Create a new session on this server |
|
67 |
|
68 @param &aVersion Version of client |
|
69 @return A pointer to a session object to be used for the client |
|
70 */ |
|
71 CSession2* CUsbMassStorageServer::NewSessionL(const TVersion &aVersion, const RMessage2& /*aMessage*/) const |
|
72 { |
|
73 TVersion v(KUsbMsSrvMajorVersionNumber,KUsbMsSrvMinorVersionNumber,KUsbMsSrvBuildVersionNumber); |
|
74 |
|
75 __PRINT(_L("CUsbMassStorageServer::NewSessionL\n")); |
|
76 if (!User::QueryVersionSupported(v, aVersion)) |
|
77 User::Leave(KErrNotSupported); |
|
78 |
|
79 CUsbMassStorageServer* ncThis = const_cast<CUsbMassStorageServer*>(this); |
|
80 |
|
81 CUsbMassStorageSession* sess = CUsbMassStorageSession::NewL(*ncThis); |
|
82 |
|
83 return sess; |
|
84 } |
|
85 |
|
86 |
|
87 /** |
|
88 Inform the client there has been an error. |
|
89 |
|
90 @param aError The error that has occurred |
|
91 */ |
|
92 void CUsbMassStorageServer::Error(TInt aError) |
|
93 { |
|
94 __PRINT1(_L("CUsbMassStorageServer::Error [aError=%d]\n"), aError); |
|
95 |
|
96 Message().Complete(aError); |
|
97 ReStart(); |
|
98 } |
|
99 |
|
100 /** |
|
101 Increment the open session count (iSessionCount) by one. |
|
102 |
|
103 @post the number of open sessions is incremented by one |
|
104 */ |
|
105 void CUsbMassStorageServer::IncrementSessionCount() |
|
106 { |
|
107 __PRINT1(_L("CUsbMassStorageServer::IncrementSessionCount %d\n"), iSessionCount); |
|
108 __ASSERT_DEBUG(iSessionCount >= 0, User::Panic(KUsbMsSvrPncCat, EUsbMsPanicIllegalIPC)); |
|
109 |
|
110 ++iSessionCount; |
|
111 |
|
112 __PRINT(_L("CUsbMassStorageServer::IncrementSessionCount\n")); |
|
113 } |
|
114 |
|
115 /** |
|
116 Decrement the open session count (iSessionCount) by one. |
|
117 |
|
118 @post the number of open sessions is decremented by one |
|
119 */ |
|
120 void CUsbMassStorageServer::DecrementSessionCount() |
|
121 { |
|
122 __PRINT1(_L("CUsbMassStorageServer::DecrementSessionCount %d\n"), iSessionCount); |
|
123 |
|
124 __ASSERT_DEBUG(iSessionCount > 0, User::Panic(KUsbMsSvrPncCat, EUsbMsPanicIllegalIPC)); |
|
125 |
|
126 --iSessionCount; |
|
127 } |
|
128 |