author | Pat Downey <patd@symbian.org> |
Wed, 01 Sep 2010 12:35:00 +0100 | |
branch | RCL_3 |
changeset 43 | 012cc2ee6408 |
parent 42 | f92a4f87e424 |
permissions | -rw-r--r-- |
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/* |
43 | 2 |
* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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/** |
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@file |
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@internalComponent |
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*/ |
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|
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#include "msmmclient.h" |
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#include <usb/usblogger.h> |
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#include <e32cmn.h> |
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|
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#include "srvdef.h" |
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#ifdef __FLOG_ACTIVE |
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_LIT8(KLogComponent, "UsbHostMsmmClient"); |
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#endif |
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// Costants |
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const TInt KConnectRetry = 0x2; |
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|
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//--------------------------------------------------------------------------- |
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// |
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// NON-MEMBER FUNCTIONS |
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static TInt StartServer() |
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{ |
43 | 43 |
LOG_STATIC_FUNC_ENTRY |
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TInt ret = KErrNone; |
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|
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// Create the server process |
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const TUidType serverUid(KNullUid, KNullUid, KMsmmServUid); |
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RProcess server; |
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_LIT(KNullCommand,""); |
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ret = server.Create(KMsmmServerBinaryName, KNullCommand, serverUid); |
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// Was server process created OK? |
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if (KErrNone != ret) |
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{ |
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return ret; |
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} |
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|
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// Set up Rendezvous so that server thread can signal correct startup |
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TRequestStatus serverDiedRequestStatus; |
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server.Rendezvous(serverDiedRequestStatus); |
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|
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// Status flag should still be pending as we haven't |
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// resumed the server yet! |
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if (serverDiedRequestStatus != KRequestPending) |
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{ |
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server.Kill(0); // abort the startup here |
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} |
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else |
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{ |
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server.Resume(); // start server |
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} |
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|
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User::WaitForRequest(serverDiedRequestStatus); |
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|
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// determine the reason for the server exit |
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TInt exitReason = (EExitPanic == server.ExitType()) ? |
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KErrGeneral : serverDiedRequestStatus.Int(); |
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server.Close(); |
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return exitReason; |
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} |
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|
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//--------------------------------------------------------------------------- |
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// RMsmmSession |
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// |
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// Public member functions |
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|
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EXPORT_C TInt RMsmmSession::Connect() |
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{ |
43 | 90 |
LOG_FUNC |
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|
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TInt retry = KConnectRetry; // Attempt connect twice then give up |
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TInt ret(KErrNone); |
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FOREVER |
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{ |
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ret = CreateSession(KMsmmServerName, Version(), KDefaultMessageSlots); |
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if ((KErrNotFound != ret) && (KErrServerTerminated != ret)) |
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{ |
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99 |
break; |
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} |
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101 |
|
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if ((--retry) == 0) |
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103 |
{ |
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break; |
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105 |
} |
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106 |
|
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ret = StartServer(); |
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if ((KErrNone != ret) && (KErrAlreadyExists != ret)) |
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109 |
{ |
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break; |
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} |
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} |
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if (KErrNone != ret) |
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{ |
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LOGTEXT2(_L("Underlying error value = %d"), ret) |
0
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ret = KErrCouldNotConnect; |
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} |
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return ret; |
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} |
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EXPORT_C TInt RMsmmSession::Disconnect() |
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{ |
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LOG_FUNC |
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||
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Close(); |
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return KErrNone; |
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} |
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// Called to provide the version number of the server we require for this API |
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EXPORT_C TVersion RMsmmSession::Version() const |
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{ |
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LOG_FUNC |
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|
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return TVersion(KMsmmServMajorVersionNumber, |
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KMsmmServMinorVersionNumber, |
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KMsmmServBuildVersionNumber); |
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} |
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|
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EXPORT_C TInt RMsmmSession::AddFunction( |
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const TUSBMSDeviceDescription& aDevice, |
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TUint8 aInterfaceNumber, TUint32 aInterfaceToken) |
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{ |
43 | 145 |
LOG_FUNC |
0
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|
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TInt ret(KErrNone); |
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|
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TIpcArgs usbmsIpcArgs; |
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iDevicePkg = aDevice; // Package the device description |
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usbmsIpcArgs.Set(0, &iDevicePkg); |
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usbmsIpcArgs.Set(1, aInterfaceNumber); |
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usbmsIpcArgs.Set(2, aInterfaceToken); |
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|
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ret = SendReceive(EHostMsmmServerAddFunction, usbmsIpcArgs); |
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|
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return ret; |
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} |
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|
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EXPORT_C TInt RMsmmSession::RemoveDevice(TUint aDevice) |
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{ |
43 | 162 |
LOG_FUNC |
0
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|
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TInt ret(KErrNone); |
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|
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TIpcArgs usbmsIpcArgs(aDevice); |
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|
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ret = SendReceive(EHostMsmmServerRemoveDevice, usbmsIpcArgs); |
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|
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return ret; |
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} |
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|
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EXPORT_C TInt RMsmmSession::__DbgFailNext(TInt aCount) |
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{ |
43 | 175 |
LOG_FUNC |
0
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|
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#ifdef _DEBUG |
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return SendReceive(EHostMsmmServerDbgFailNext, TIpcArgs(aCount)); |
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#else |
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(void)aCount; |
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return KErrNone; |
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#endif |
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} |
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|
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EXPORT_C TInt RMsmmSession::__DbgAlloc() |
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{ |
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LOG_FUNC |
0
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|
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#ifdef _DEBUG |
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return SendReceive(EHostMsmmServerDbgAlloc); |
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#else |
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return KErrNone; |
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#endif |
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} |
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|
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// End of file |