resourcemgmt/hwresourcesmgr/client/src/HWRMClient.cpp
changeset 0 4e1aa6a622a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/resourcemgmt/hwresourcesmgr/client/src/HWRMClient.cpp	Tue Feb 02 00:53:00 2010 +0200
@@ -0,0 +1,247 @@
+// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+
+
+// INCLUDE FILES
+#include <e32svr.h>
+#include "HWRMClient.h"
+#include "HWRMConfiguration.h"
+#include "HWRMClientServer.h"
+#include "HWRMtrace.h"
+
+// EXTERNAL DATA STRUCTURES
+
+// EXTERNAL FUNCTION PROTOTYPES  
+
+// CONSTANTS
+_LIT(KSysBin, "\\sys\\bin\\");
+
+// MACROS
+
+// LOCAL CONSTANTS AND MACROS
+
+// MODULE DATA STRUCTURES
+
+// LOCAL FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+/*
+// -----------------------------------------------------------------------------
+// RHWRMClient::RHWRMClient
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+RHWRMClient::RHWRMClient()
+    : RSessionBase()
+    {
+    }
+*/
+
+// -----------------------------------------------------------------------------
+// RHWRMClient::Connect
+// Connects to server
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt RHWRMClient::Connect(THWRMResourceType aType)
+    {
+   COMPONENT_TRACE2(_L( "HWRM Client - RHWRMClient::Connect(0x%x)" ), aType);
+
+    // Try this twice
+    TInt retry(3);
+    TInt err(KErrNone);
+
+    while (retry > 0)
+        {
+        // Try to create a HWRM Server session
+        COMPONENT_TRACE2(_L( "HWRM Client - RHWRMClient::Connect - CreateSession retry : %d" ), retry );        
+        err = CreateSession( KServerProcessName, 
+                                  ServerVersion(), 
+                                  KDefaultAsyncSlots );
+
+        COMPONENT_TRACE2(_L( "HWRM Client - RHWRMClient::Connect - CreateSession returned: %d" ), err );        
+        
+        if ( err != KErrNotFound && err != KErrServerTerminated )
+            {
+            // KErrNone or unrecoverable error
+            break;
+            }
+        else
+            {
+            // Return code was KErrNotFound or KErrServerTerminated.
+            // Try to start a new HWRM Server
+            err = StartServer();
+
+            COMPONENT_TRACE2(_L( "HWRM Client - RHWRMClient::Connect - StartServer returned: %d" ), err );        
+
+            if ( err != KErrNone && err != KErrAlreadyExists )
+                {
+                // Unrecoverable error
+                break;
+                }
+            }
+                
+        retry--;
+        }
+        
+    // Create proper service on server side
+    if ( err == KErrNone )
+        {
+        switch ( aType )
+            {
+            case HWRMResourceTypeVibra:
+                err = SendReceive(EHWRMCreateVibraService, TIpcArgs());
+                break;
+            case HWRMResourceTypeLight:
+                err = SendReceive(EHWRMCreateLightService, TIpcArgs());
+                break;
+            case HWRMResourceTypePower:
+            	err = SendReceive(EHWRMCreatePowerService, TIpcArgs());
+				break;
+            case HWRMResourceTypeFmTx:
+            	err = SendReceive(EHWRMCreateFmTxService, TIpcArgs());
+            	break;
+            default:
+                err = KErrNotSupported;
+            }
+        }
+        
+    COMPONENT_TRACE2( _L( "HWRM Client - RHWRMClient::Connect - return %d" ), err );        
+    return err;
+    }
+
+
+// -----------------------------------------------------------------------------
+// RHWRMClient::ExecuteOperation
+// Calls SendReceive with given parameters.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C TInt RHWRMClient::ExecuteOperation(TInt aCommand, const TIpcArgs& aArgs) const
+    {
+    COMPONENT_TRACE2(_L( "HWRM Client - RHWRMClient::ExecuteOperation(0x%x, <aArgs>)" ), aCommand );
+    
+    TInt retval = SendReceive(aCommand, aArgs);
+    
+    COMPONENT_TRACE2(_L( "HWRM Client - RHWRMClient::ExecuteOperation - return %d" ), retval );
+    
+    return retval;
+
+    }
+
+// -----------------------------------------------------------------------------
+// RHWRMClient::ExecuteAsyncOperation
+// Calls SendReceive with given parameters.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void RHWRMClient::ExecuteAsyncOperation(TInt aCommand, const TIpcArgs& aArgs, TRequestStatus& aStatus ) const
+	{
+	COMPONENT_TRACE3( _L( "HWRM Client - RHWRMClient::ExecuteAsyncOperation(0x%x, <aArgs>, 0x%x)" ), aCommand, aStatus.Int() );
+
+	SendReceive(aCommand, aArgs, aStatus);
+
+	COMPONENT_TRACE1( _L( "HWRM Client - RHWRMClient::ExecuteAsyncOperation - return" ) );
+	}
+// -----------------------------------------------------------------------------
+// RHWRMClient::StartServer
+// Starts server.
+// -----------------------------------------------------------------------------
+//
+TInt RHWRMClient::StartServer() const
+    {
+    COMPONENT_TRACE1(_L( "HWRM Client - RHWRMClient::StartServer()" ) );
+
+    RProcess server;
+    const TUidType serverUid( KNullUid, KServerUid2, KNullUid );
+    TInt err = server.Create( ServerLocation(), // HWRMServer.exe
+                           KNullDesC, // A descriptor containing data passed as 
+                                      // an argument to the thread function of 
+                                      // the new process's main thread, when it 
+                                      // is first scheduled.
+                           serverUid, // HWRM server UID
+                           EOwnerProcess ); // Ownership of this process handle 
+
+    // Return error code if we couldn't create a process
+    if ( err == KErrNone )
+        {
+        // Rendezvous is used to detect server start
+        TRequestStatus stat;
+        server.Rendezvous( stat );
+
+        if ( stat != KRequestPending )
+            {
+            server.Kill( stat.Int() ); // Abort startup
+            }
+        else
+            {
+            server.Resume();  // Logon OK - start the server
+            }
+
+        COMPONENT_TRACE1(_L( "HWRM Client - RHWRMClient::StartServer - Waiting server startup" ) );
+
+        User::WaitForRequest( stat ); // Wait for start or death
+
+        COMPONENT_TRACE1(_L( "HWRM Client - RHWRMClient::StartServer - Server startup wait finished" ) );
+        
+        // We can't use the 'exit reason' if the server paniced as this
+        // is the panic 'reason' and may be '0' which cannot be distinguished
+        // from KErrNone
+        err = (server.ExitType() == EExitPanic)? KErrGeneral : stat.Int();
+
+        // We can close the handle now
+        server.Close();        
+        }
+
+    COMPONENT_TRACE2(_L( "HWRM Client - RHWRMClient::StartServer - return %d" ), err );
+
+    return err;
+    }
+
+// -----------------------------------------------------------------------------
+// RHWRMClient::ServerLocation
+// Returns server location
+// -----------------------------------------------------------------------------
+//
+TFullName RHWRMClient::ServerLocation() const
+    {
+    TFullName fullPathAndName( KServerExeDrive );
+    fullPathAndName.Append( KSysBin );
+    fullPathAndName.Append( KServerExeName );
+    
+    COMPONENT_TRACE2(_L( "HWRM Client - RHWRMClient::ServerLocation - return %S" ), &fullPathAndName );
+
+    return fullPathAndName;
+    }
+
+// -----------------------------------------------------------------------------
+// RHWRMClient::ServerVersion
+// Return version of server
+// -----------------------------------------------------------------------------
+//
+TVersion RHWRMClient::ServerVersion() const 
+    {
+    return TVersion( KServerVersionMajor, KServerVersionMinor, KServerVersionBuild );
+    }
+
+
+// ========================== OTHER EXPORTED FUNCTIONS =========================
+
+
+//  End of File