Symaptic: os/kernelhwsrv/userlibandfileserver/fileserver/smassstorage/cusbmassstorageserver.cpp@bde4ae8d615e

     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 //

    18 /**

    19  @file

    20  @internalTechnology

    21 */

    23 #include <e32svr.h>

    24 #include "usbmsshared.h"

    25 #include "cusbmassstorageserver.h"

    26 #include "cusbmassstoragesession.h"

    27 #include "cusbmassstoragecontroller.h"

    28 #include "massstoragedebug.h"

    30 #include "usbmsserversecuritypolicy.h"

    31 /**

    32  Constructs a USB mass storage Server

    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 	}

    44 /**

    45  Destructor

    46  */

    47 CUsbMassStorageServer::~CUsbMassStorageServer()

    48 	{

    49     // Intentionally left blank

    50 	}

    53 /**

    54  Constructor

    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 	}

    65 /**

    66  Create a new session on this server

    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);

    75 	__PRINT(_L("CUsbMassStorageServer::NewSessionL\n"));

    76 	if (!User::QueryVersionSupported(v, aVersion))

    77 		User::Leave(KErrNotSupported);

    79 	CUsbMassStorageServer* ncThis = const_cast<CUsbMassStorageServer*>(this);

    81 	CUsbMassStorageSession* sess = CUsbMassStorageSession::NewL(*ncThis);

    83 	return sess;

    84 	}

    87 /**

    88  Inform the client there has been an error.

    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);

    96 	Message().Complete(aError);

    97 	ReStart();

    98 	}

   100 /**

   101  Increment the open session count (iSessionCount) by one.

   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));

   110 	++iSessionCount;

   112 	__PRINT(_L("CUsbMassStorageServer::IncrementSessionCount\n"));

   113 	}

   115 /**

   116  Decrement the open session count (iSessionCount) by one.

   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);

   124 	__ASSERT_DEBUG(iSessionCount > 0, User::Panic(KUsbMsSvrPncCat, EUsbMsPanicIllegalIPC));

   126 	--iSessionCount;

   127 	}

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--