mpx/commonframework/common/src/mpxmessagemonitor.cpp
changeset 0 a2952bb97e68
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     1 /*
       
     2 * Copyright (c) 2006 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:  Inline implementation of message monitor
       
    15 *
       
    16 */
       
    17 
       
    18 #include <mpxlog.h>
       
    19 #include "mpxsession.h"
       
    20 #include "mpxmessagemonitor.h"
       
    21 
       
    22 const TInt KMPXGetNextMessage=0;
       
    23 const TInt KMPXCancelGetNextMessage=1;
       
    24 
       
    25 // ============================== MEMBER FUNCTIONS ============================
       
    26 // ----------------------------------------------------------------------------
       
    27 // Two phases constructor
       
    28 // ----------------------------------------------------------------------------
       
    29 // 
       
    30 EXPORT_C CMPXMessageMonitor* CMPXMessageMonitor::NewL(
       
    31     const RMPXSession& aSession,
       
    32     MMPXMessageObserver& aObserver)
       
    33     {
       
    34     CMPXMessageMonitor* self = new(ELeave)CMPXMessageMonitor(aSession, aObserver);
       
    35     CleanupStack::PushL(self);
       
    36     self->ConstructL();
       
    37     CleanupStack::Pop(self);
       
    38     return self;
       
    39     }
       
    40 
       
    41 // ----------------------------------------------------------------------------
       
    42 // Destructor
       
    43 // ----------------------------------------------------------------------------
       
    44 //    
       
    45 EXPORT_C CMPXMessageMonitor::~CMPXMessageMonitor() 
       
    46     {
       
    47     MPX_FUNC_EX("CMPXMessageMonitor::~CMPXMessageMonitor");
       
    48     Cancel();
       
    49     }
       
    50 
       
    51 // ----------------------------------------------------------------------------
       
    52 // C++ constructor
       
    53 // ----------------------------------------------------------------------------
       
    54 //    
       
    55 CMPXMessageMonitor::CMPXMessageMonitor(
       
    56     const RMPXSession& aSession,
       
    57     MMPXMessageObserver& aObserver)
       
    58 :   CActive(EPriorityHigh),
       
    59     iSession(aSession),
       
    60     iObserver(aObserver)
       
    61     {
       
    62     CActiveScheduler::Add(this);
       
    63     }
       
    64 
       
    65 
       
    66 // ----------------------------------------------------------------------------
       
    67 // 2nd phase construction: 
       
    68 // ----------------------------------------------------------------------------
       
    69 //    
       
    70 void CMPXMessageMonitor::ConstructL()
       
    71     {
       
    72     MPX_FUNC_EX("CMPXMessageMonitor::ConstructL");
       
    73     GetNextMessage();
       
    74     }
       
    75 
       
    76 // ----------------------------------------------------------------------------
       
    77 // Start to monitor messages
       
    78 //
       
    79 // ----------------------------------------------------------------------------
       
    80 //    
       
    81 EXPORT_C void CMPXMessageMonitor::GetNextMessage()
       
    82     {
       
    83     MPX_FUNC_EX("CMPXMessageMonitor::GetNextMessage");
       
    84     if (!IsActive())
       
    85         {
       
    86         MPX_DEBUG1("CMPXMessageMonitor::GetNextMessage send request");
       
    87         iSession.SendReceive(KMPXGetNextMessage, 
       
    88                              TIpcArgs(&iMsgDataPkg, &iErrorPkg),
       
    89                              iStatus);
       
    90         SetActive();
       
    91         }
       
    92     }
       
    93  
       
    94 // ----------------------------------------------------------------------------
       
    95 // From CActive: a new message must have arrived so retrieve it and pass back
       
    96 // to observer, then wait for next message
       
    97 // ----------------------------------------------------------------------------
       
    98 //    
       
    99 EXPORT_C void CMPXMessageMonitor::RunL()
       
   100     {
       
   101     MPX_FUNC_EX("CMPXMessageMonitor::RunL");
       
   102     
       
   103     // Try again in case server is down for IAD
       
   104     if (iStatus == KErrDied || iStatus == KErrServerTerminated)
       
   105         {
       
   106         MPX_DEBUG1("-->CMPXMessageMonitor::RunL Reconnecting session for IAD");
       
   107         
       
   108         // attempt to bring the server back up
       
   109         if (iSession.Reconnect() != KErrNone)
       
   110             {            
       
   111             MPX_DEBUG1("-->CMPXMessageMonitor::RunL Reconnect Failed");
       
   112             
       
   113             User::LeaveIfError(iStatus.Int());
       
   114             }
       
   115         }
       
   116     else
       
   117         {
       
   118         User::LeaveIfError(iStatus.Int());
       
   119         iObserver.MessageReceived(iMsgDataPkg(), iErrorPkg());
       
   120         }
       
   121     }
       
   122 
       
   123 // ----------------------------------------------------------------------------
       
   124 // From CActive: no more messages are required 
       
   125 // ----------------------------------------------------------------------------
       
   126 //     
       
   127 EXPORT_C void CMPXMessageMonitor::DoCancel()
       
   128     {
       
   129     MPX_FUNC_EX("CMPXMessageMonitor::DoCancel");
       
   130     if (IsActive())
       
   131         {
       
   132         TRAP_IGNORE(iSession.SendReceiveL(KMPXCancelGetNextMessage));
       
   133         }
       
   134     }
       
   135 
       
   136 // ----------------------------------------------------------------------------
       
   137 // Handle leave in the RunL() 
       
   138 // ----------------------------------------------------------------------------
       
   139 //     
       
   140 EXPORT_C TInt CMPXMessageMonitor::RunError(TInt aError)
       
   141     {
       
   142     MPX_DEBUG3("-->CMPXMessageMonitor::RunError 0x%08x, error %d", this, aError);
       
   143     if (KErrCancel!=aError && KErrServerTerminated!=aError)
       
   144         {
       
   145         GetNextMessage();
       
   146         }
       
   147     MPX_DEBUG3("<--CMPXMessageMonitor::RunError 0x%08x, error %d", this, aError);
       
   148     return KErrNone;
       
   149     }
       
   150 
       
   151 // End of file
       
   152