datacommsserver/esockserver/ssock/ss_legacyinterfaces.cpp
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     1 // Copyright (c) 2005-2009 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 "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 //
       
    15 
       
    16 /**
       
    17  @file
       
    18  @internalComponent
       
    19 */
       
    20 #include "ss_legacyinterfaces.h"
       
    21 
       
    22 #include <comms-infras/api_ext_list.h>
       
    23 #include <comms-infras/api_ext_msg.h>
       
    24 #include <cdblen.h>
       
    25 #include <commdb.h>
       
    26 #include <ss_glob.h>
       
    27 #include <comms-infras/ss_connprov.h>
       
    28 #include <comms-infras/ss_connlegacy.h>
       
    29 #include <comms-infras/ss_thread.h>
       
    30 #include <comms-infras/metatype.h>
       
    31 #include <comms-infras/ss_datamon_apiext.h>
       
    32 #include <comms-infras/ss_connlegacy.h>
       
    33 #include "SS_conn.H"
       
    34 
       
    35 #include <comms-infras/ss_nodemessages_internal_esock.h>
       
    36 #include "ss_internal_activities.h" 
       
    37 // although we don't need the XConnectionQueryBase::LoadL() method
       
    38 // including this header forces us to link against commsdataobjects.lib
       
    39 // when compiling with Armv5
       
    40 #include <comms-infras/connectionqueryset.h>
       
    41 
       
    42 #include <comms-infras/ss_log.h>
       
    43 #include <comms-infras/ss_commsdataobject.h>
       
    44 #include <comms-infras/ss_roles.h>
       
    45 #include <ss_sock.h>
       
    46 #include "SS_rslv.H"
       
    47 #include <comms-infras/ss_subconnflow.h>
       
    48 #include <elements/responsemsg.h>
       
    49 
       
    50 using namespace ESock;
       
    51 using namespace Elements;
       
    52 using namespace Messages;
       
    53 using namespace MeshMachine;
       
    54 
       
    55 
       
    56 
       
    57 EXPORT_C ALegacySubConnectionActiveApiExt::~ALegacySubConnectionActiveApiExt()
       
    58 	{
       
    59 	iRequests.ResetAndDestroy();
       
    60 	}
       
    61 
       
    62 
       
    63 void ALegacySubConnectionActiveApiExt::IsSubConnectionActiveRequest(CLegacySubConnectionActiveResponder& aResponder)
       
    64 	{
       
    65 	// Create a request structure for this client.
       
    66 	CClientRequest* request = new CClientRequest(aResponder.ClientId(), aResponder);
       
    67 	if (!request)
       
    68 		{
       
    69 		aResponder.Error(KErrNoMemory);
       
    70 		return;
       
    71 		}
       
    72 
       
    73 	// Find the data monitoring provider associated with the parent node.
       
    74 	ADataMonitoringProvider* dmProvider = NULL;
       
    75 	TRAP_IGNORE(dmProvider = static_cast<ADataMonitoringProvider*>(iParent->FetchNodeInterfaceL(EDataMonitoringApiExt)));
       
    76 	if (!dmProvider)
       
    77 		{
       
    78 		// There's no way the ipproto CPR and SCPR can't be data monitoring providers
       
    79 		aResponder.Error(KErrCorrupt);
       
    80 		request->iResponder = NULL;
       
    81 		delete request;
       
    82 		return;
       
    83 		}
       
    84 	TDataVolumes* dmVolumes = dmProvider->DataVolumesPtr();
       
    85 
       
    86 	// Initialise the request structure with the current data counts for
       
    87 	// comparison when the timer fires.
       
    88 	request->iInitialSentVolume = dmVolumes->iSentBytes;
       
    89 	request->iInitialReceivedVolume = dmVolumes->iReceivedBytes;
       
    90 
       
    91 	// Create a new timer for this request and record it in the request structure.
       
    92 	CActivityTimer* timer = NULL;
       
    93 	TRAP_IGNORE(timer = CActivityTimer::NewL(*this, request, KActivityTimerPriority));
       
    94 	if (!timer)
       
    95 		{
       
    96 		aResponder.Error(KErrNoMemory);
       
    97 		request->iResponder = NULL;
       
    98 		delete request;
       
    99 		return;
       
   100 		}
       
   101 
       
   102 	request->iTimer = timer;
       
   103 
       
   104 	// Store the request and kick off the timer.
       
   105 	TInt error = iRequests.Append(request);
       
   106 	if (error!=KErrNone)
       
   107 		{
       
   108 		aResponder.Error(error);
       
   109 		request->iResponder = NULL;
       
   110 		delete request;
       
   111 		return;
       
   112 		}
       
   113 
       
   114 	request->iTimer->After(request->iResponder->TimerPeriod() * KMicrosecondsInASecond);
       
   115 	}
       
   116 
       
   117 void ALegacySubConnectionActiveApiExt::CancelIsSubConnectionActiveRequest(TSubSessionUniqueId aClientId)
       
   118 	{
       
   119 	// Find the outstanding request, remove it from the array, complete the client, delete the timer, delete the request.
       
   120 	for(TInt i=0;i<iRequests.Count();i++)
       
   121 		{
       
   122 		if(iRequests[i]->iClientId == aClientId)
       
   123 			{
       
   124 			CClientRequest* request = iRequests[i];
       
   125 			iRequests.Remove(i);
       
   126 
       
   127 			ASSERT(request);
       
   128 			delete request;
       
   129 			}
       
   130 		}
       
   131 	}
       
   132 
       
   133 EXPORT_C void ALegacySubConnectionActiveApiExt::CancelExtensionInterface(TSubSessionUniqueId aClientId)
       
   134 	{
       
   135 	CancelIsSubConnectionActiveRequest(aClientId);
       
   136 	}
       
   137 
       
   138 void ALegacySubConnectionActiveApiExt::CheckSubConnectionActivityL(CClientRequest* aRequest)
       
   139 	{
       
   140 	ASSERT(aRequest);
       
   141 
       
   142 	ADataMonitoringProvider* dmProvider = static_cast<ADataMonitoringProvider*>(iParent->FetchNodeInterfaceL(EDataMonitoringApiExt));
       
   143 	User::LeaveIfError(dmProvider ? KErrNone : KErrCorrupt); // There's no way the ipproto CPR and SCPR can't be data monitoring providers
       
   144 	TDataVolumes* dmVolumes = dmProvider->DataVolumesPtr();
       
   145 
       
   146 	TUint newSentDataVolume = dmVolumes->iSentBytes;
       
   147 	TUint newReceivedDataVolume = dmVolumes->iReceivedBytes;
       
   148 
       
   149 	TBool dataTransferred = (newSentDataVolume != aRequest->iInitialSentVolume) ||
       
   150 							(newReceivedDataVolume != aRequest->iInitialReceivedVolume);
       
   151 
       
   152 	// If the data transferred volumes haven't change but the client thinks the connection is active...
       
   153 	if (aRequest->iResponder->ClientPerceivedState())
       
   154 		{
       
   155 		if(dataTransferred)	// ...and it is, so just start another timer cycle
       
   156 			{
       
   157 			aRequest->iInitialSentVolume = newSentDataVolume;
       
   158 			aRequest->iInitialReceivedVolume = newReceivedDataVolume;
       
   159 
       
   160 			aRequest->iTimer->After(aRequest->iResponder->TimerPeriod() * KMicrosecondsInASecond);
       
   161 			}
       
   162 		else				// ...tell them it's not
       
   163 			{
       
   164 			aRequest->SubConnectionActive(dataTransferred);
       
   165 
       
   166 			for(TInt i=0;i<iRequests.Count();i++)
       
   167 				{
       
   168 				if(iRequests[i]->iClientId == aRequest->iClientId)
       
   169 					{
       
   170 					CClientRequest* request = iRequests[i];
       
   171 					iRequests.Remove(i);
       
   172 					delete request;
       
   173 					}
       
   174 				}
       
   175 			}
       
   176 		}
       
   177 	else					// client believes subconnection is idle...
       
   178 		{
       
   179 		if(dataTransferred)
       
   180 			{
       
   181 			aRequest->SubConnectionActive(dataTransferred);
       
   182 			
       
   183 
       
   184 			for(TInt i=0;i<iRequests.Count();i++)
       
   185 				{
       
   186 				if(iRequests[i]->iClientId == aRequest->iClientId)
       
   187 					{
       
   188 					CClientRequest* request = iRequests[i];
       
   189 					iRequests.Remove(i);
       
   190 					delete request;
       
   191 					}
       
   192 				}
       
   193 			}
       
   194 		else				// ...and it is, so just start another timer cycle
       
   195 			{
       
   196 			aRequest->iInitialSentVolume = newSentDataVolume;
       
   197 			aRequest->iInitialReceivedVolume = newReceivedDataVolume;
       
   198 
       
   199 			aRequest->iTimer->After(aRequest->iResponder->TimerPeriod() * KMicrosecondsInASecond);
       
   200 			}
       
   201 		}
       
   202 	}
       
   203 
       
   204 
       
   205 CClientRequest::~CClientRequest()
       
   206 	{
       
   207 	delete iTimer;
       
   208 	if (iResponder)
       
   209 		{
       
   210 		iResponder->Complete(KErrCancel);
       
   211 		}
       
   212 	}
       
   213 
       
   214 
       
   215 void CClientRequest::SubConnectionActive(TBool aState)
       
   216 	{
       
   217 	iResponder->SubConnectionActive(aState);
       
   218 	iResponder = NULL;
       
   219 	}
       
   220 
       
   221 /**
       
   222 	Construct a new CActivityTimer()
       
   223 
       
   224 	@param aOwner The owning ALegacySubConnectionActiveApiExt (on which we call methods upon timer completion)
       
   225 	@param aPriority The priority of the active object underlying this timer object
       
   226 	@return A pointer to the newly constructed CActivityTimer object
       
   227 
       
   228 	@internalComponent
       
   229 */
       
   230 ESock::CActivityTimer* ESock::CActivityTimer::NewL(ALegacySubConnectionActiveApiExt& aOwner, CClientRequest* aRequest, TInt aPriority)
       
   231 	{
       
   232 	ESock::CActivityTimer* newActivityTimer =
       
   233 		new(ELeave) ESock::CActivityTimer(aOwner, aRequest, aPriority);
       
   234 
       
   235 	CleanupStack::PushL(newActivityTimer);
       
   236 	newActivityTimer->ConstructL();
       
   237 	CleanupStack::Pop(newActivityTimer);
       
   238 
       
   239 	return newActivityTimer;
       
   240 	}
       
   241 
       
   242 /**
       
   243 	Call the owning object's check activity method.
       
   244 
       
   245 	@internalComponent
       
   246 */
       
   247 void ESock::CActivityTimer::RunL()
       
   248 	{
       
   249 	iOwner.CheckSubConnectionActivityL(iRequest);
       
   250 	}
       
   251 
       
   252