datacommsserver/esockserver/inc/ss_parameterfamilybundle.h
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     1 // Copyright (c) 2008-2009 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 // Wrappers for the RParameterFamilyBundle class for use inside the
       
    15 // messaging infrastructure.
       
    16 // CCFParameterFamilyBundle implements reference counting for the owned (by inheritance)
       
    17 // RParameterFamilyBundle. It also inherits from MCFNodeIdBase so it can be addressed from
       
    18 // anywhere in the messaging infrastructure.
       
    19 // RCFParameterFamilyBundle is a handle to CCFParameterFamilyBundle which points to it
       
    20 // by use of its TCommsId. This potentially allows it to safely access it even if it refers to
       
    21 // a CCFParameterFamilyBundle residing in a different thread or process.
       
    22 // It is a facade class to RParameterFamilyBundle so client code using a RCFParameterFamilyBundle
       
    23 // can look very much like it would if it were using a RParameterFamilyBundle directly.
       
    24 // Reference to an underlying bundle should be done by passing RCFParameterFamilyBundle by value.
       
    25 // Anyone interested in keeping the bundle for its own purposes should create a new instance
       
    26 // of RCFParameterFamilyBundle and Open it, passing the existing handle as an argument.
       
    27 // 
       
    28 //
       
    29 // Note: Every effort should be made to ensure that the classes forming this API be kept consistent with each other
       
    30 // When making changes to these classes also see the files es_parameterbundle.h, es_parameterfamily.h,
       
    31 // ss_parameterfamilybundle.h
       
    32 //
       
    33 
       
    34 /**
       
    35  @file
       
    36  @publishedPartner
       
    37  @released
       
    38 */
       
    39 
       
    40 
       
    41 #ifndef  __SS_PARAMETERFAMILYBUNDLE_H_
       
    42 #define  __SS_PARAMETERFAMILYBUNDLE_H_
       
    43 
       
    44 
       
    45 #include <elements/nm_node.h>
       
    46 #include <comms-infras/es_parameterfamily.h>
       
    47 
       
    48 namespace ESock
       
    49 {
       
    50 
       
    51 class CCFParameterFamilyBundle;
       
    52 
       
    53 
       
    54 class RCFParameterFamilyBundleC
       
    55 /**
       
    56 @publishedPartner
       
    57 @released
       
    58 */
       
    59 	{
       
    60 	friend class RCFParameterFamilyBundle;
       
    61 public:
       
    62 	// point to nothing by default.
       
    63 	RCFParameterFamilyBundleC():
       
    64 		iBundleId(Messages::TNodeId::NullId())
       
    65 		{
       
    66 		}
       
    67 
       
    68 	TBool operator==(const RCFParameterFamilyBundleC& aRhs) const
       
    69 		{
       
    70 		return iBundleId==aRhs.iBundleId;
       
    71 		}
       
    72 
       
    73 	TBool operator!=(const RCFParameterFamilyBundleC& aRhs) const
       
    74 		{
       
    75 		return !(*this==aRhs);
       
    76 		}
       
    77 
       
    78 	// facade to CCFParameterFamilyBundle:
       
    79 	
       
    80 	// refcounting
       
    81 	IMPORT_C void Open();
       
    82 	IMPORT_C void Open(const RCFParameterFamilyBundleC& aExistingHandle);
       
    83 	IMPORT_C void Close();
       
    84 
       
    85 	// creation & deserialising
       
    86 	IMPORT_C void CreateL();
       
    87 	IMPORT_C void LoadL(TDesC8& aDes);
       
    88 
       
    89 	// serialising
       
    90 	IMPORT_C TUint Length() const;
       
    91 	IMPORT_C TInt Store(TDes8& aDes) const;
       
    92 
       
    93 	// get/find families
       
    94 	IMPORT_C const RParameterFamily GetFamilyAtIndex(TUint aIndex) const;
       
    95 	IMPORT_C const RParameterFamily FindFamily(TUint32 aFamilyId) const;
       
    96 	IMPORT_C TUint CountParameterSets() const;
       
    97 
       
    98 public:
       
    99 	TBool IsNull() const
       
   100 		{
       
   101 		return const_cast<RCFParameterFamilyBundleC&>(*this).TargetBundle()?EFalse:ETrue;
       
   102 		}
       
   103 	void CheckOpenL() const
       
   104 		{
       
   105 		(void)const_cast<RCFParameterFamilyBundleC&>(*this).TargetBundleL();
       
   106 		}
       
   107 
       
   108 protected:
       
   109 	IMPORT_C CCFParameterFamilyBundle* TargetBundle();
       
   110 
       
   111 	CCFParameterFamilyBundle& TargetBundleL()
       
   112 		{
       
   113 		CCFParameterFamilyBundle* tBundle = TargetBundle();
       
   114 		if(tBundle==NULL)
       
   115 			{
       
   116 			User::Leave(KErrNotReady);
       
   117 			}
       
   118 		return *tBundle;
       
   119 		}
       
   120 
       
   121 private:
       
   122 	RCFParameterFamilyBundleC& operator = (const RCFParameterFamilyBundleC& aSrc);
       
   123 
       
   124 	
       
   125 private:
       
   126 	Messages::TNodeId iBundleId;
       
   127 	};
       
   128 
       
   129 /**
       
   130 RCFParameterFamilyBundle_const defined for compatibility, use RCFParameterFamilyBundleC instead
       
   131 @publishedPartner
       
   132 @deprecated
       
   133 */
       
   134 typedef RCFParameterFamilyBundleC RCFParameterFamilyBundle_const;
       
   135 
       
   136 
       
   137 class RCFParameterFamilyBundle : public RCFParameterFamilyBundleC
       
   138 /**
       
   139 @internalTechnology
       
   140 */
       
   141 	{
       
   142 	friend class RCFParameterFamilyBundleC;
       
   143 public:
       
   144 	// point to nothing by default.
       
   145 	RCFParameterFamilyBundle():
       
   146 		RCFParameterFamilyBundleC()
       
   147 		{
       
   148 		}
       
   149 
       
   150 	// adding/creating families
       
   151 	IMPORT_C RParameterFamily CreateFamilyL(TUint32 aFamilyId);
       
   152 
       
   153 	// get/find families
       
   154 	IMPORT_C RParameterFamily GetFamilyAtIndex(TUint aIndex);
       
   155 	IMPORT_C RParameterFamily FindFamily(TUint32 aFamilyId);
       
   156 
       
   157 	// clear all parameters
       
   158 	IMPORT_C void ClearAllParameters(RParameterFamily::TParameterSetType aType);
       
   159 
       
   160 private:
       
   161 	RCFParameterFamilyBundle& operator = (const RCFParameterFamilyBundle& aSrc);
       
   162 	};
       
   163 
       
   164 
       
   165 } // namespace ESock
       
   166 
       
   167 #endif // __SS_PARAMETERFAMILYBUNDLE_H_
       
   168