epoc32/include/centralrepository.h
branchSymbian2
changeset 2 2fe1408b6811
parent 0 061f57f2323e
child 4 837f303aceeb
--- a/epoc32/include/centralrepository.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/centralrepository.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,229 @@
-centralrepository.h
+// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+// which accompanies this distribution, and is available
+// at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#ifndef __CENTRALREPOSITORY_H__
+#define __CENTRALREPOSITORY_H__
+
+#include <e32base.h>
+
+
+namespace NCentralRepositoryConstants
+/** Namespace encapsulating the CentralRepository constants.
+@publishedAll
+@released
+*/
+{
+	
+/** The maximum number of unicode characters that can be stored in a setting
+@publishedAll
+@released
+*/
+const TInt KMaxUnicodeStringLength = 1024;
+
+/** The maximum number of bytes that can be stored in a setting
+@publishedAll
+@released
+*/
+const TInt KMaxBinaryLength = KMaxUnicodeStringLength*2;
+
+/** Error key returned by CommitTransaction in case of an error that cannot be
+attributed to any single or partial key. Also notify value for spurious 
+notifications (eg when a notification is cancelled or several values change at once )
+@internalAll
+@released
+*/
+const TUint32 KUnspecifiedKey = 0xffffffffUL;
+
+/** Initial buffer size for Find~ API. Initial buffer is used to cut on the number
+of IPC calls required for each Find~ API call. If the number of settings found is 
+less than or equal to KCentRepFindBufSize then all the settings can be retrieved with
+a single IPC.
+@internalAll
+*/
+const TInt KCentRepFindBufSize = 16;
+
+/** Use KUnspecifiedKey instead of this value.
+@publishedAll
+@deprecated
+*/
+const TUint32 KInvalidNotificationId = KUnspecifiedKey;
+
+/** The 8 most significant bits of a setting's meta-data are reserved for internal use.
+Clients should not make use of the reserved bits (unless it is specifically stated
+otherwise in Symbian developer documentation).  Clients should not rely on the value
+of the reserved bits.  Reserved bits are not guaranteed to be 0 or 1 and are not
+guaranteed to stay constant from one GetMeta call to the next.
+@publishedPartner
+@released
+@see CRepository::GetMeta
+@see KMetaUnreserved
+*/
+const TUint32 KMetaSymbianReserved = 0xFF000000; 
+
+/** The 24 least significant bits of a setting's meta-data are available for use. Clients
+should make use of KMetaUnreserved to mask out the reserved bits following a call
+to GetMeta.  Clients should not rely on the value of the reserved bits.  Reserved bits
+are not guaranteed to be 0 or 1 and are not guaranteed to stay constant from one
+GetMeta call to the next.
+@publishedPartner
+@released
+@see CRepository::GetMeta
+@see KMetaSymbianReserved 
+*/
+const TUint32 KMetaUnreserved = 0x00FFFFFF; 
+
+} // namespace NCentralRepositoryConstants
+
+/** Provides access to a repository.
+
+There are potentially 2^32 repositories, each identified by a UID. Within each
+repository up to 2^32 settings can be stored. Settings within a repository are
+identified by a 32-bit key and may be of the types integer, real or descriptor.
+@publishedAll
+@released
+*/
+class CRepository : public CBase
+	{
+public:
+
+	/**	Transaction mode chosen with StartTransaction.
+	@publishedPartner
+	@released */
+	enum TTransactionMode
+		{
+		/** Standard optimistic non-serialised transaction. Can be started at any time
+		Commit fails with KErrLocked if another client interrupts it by first committing
+		changes: transaction should be repeated until KErrLocked is not returned. */
+		EConcurrentReadWriteTransaction = 2,
+		/** Pessimistic locking transaction intended for reading consistent values.
+		Can only be started if EReadWriteTransaction is not in progress.
+		Automatically promoted to EReadWriteTransaction on first write operation
+		if no other read transaction is in progress (or fails if not attainable).
+		Use ONLY if all clients can agree not to use EConcurrentReadWriteTransaction,
+		and only make changes in an EReadWriteTransaction. */
+		EReadTransaction = 1,
+		/** Pessimistic locking transaction intended for writing values. Can only be
+		started if no EReadTransaction or EReadWriteTransactions are in progress.
+		Use ONLY if all clients can agree not to use EConcurrentReadWriteTransaction,
+		and only make changes in an EReadWriteTransaction. */
+		EReadWriteTransaction = 3
+		};
+
+	/** Buffer type for aKeyInfo parameter to asynchronous CommitTransaction.
+	@see CRepository::CommitTransaction(TDes8& aKeyInfo, TRequestStatus& aStatus)
+	@publishedPartner
+	@released
+	*/
+	typedef TPckgBuf<TUint32> TTransactionKeyInfoBuf;
+
+	IMPORT_C static CRepository* NewL(TUid aRepositoryUid);
+	IMPORT_C static CRepository* NewLC(TUid aRepositoryUid);
+
+	IMPORT_C virtual ~CRepository();
+	IMPORT_C TInt Create(TUint32 aKey, TInt aValue);
+	IMPORT_C TInt Create(TUint32 aKey, const TReal& aValue);
+	IMPORT_C TInt Create(TUint32 aKey, const TDesC8& aValue);
+	IMPORT_C TInt Create(TUint32 aKey, const TDesC16& aValue);
+
+	IMPORT_C TInt Delete(TUint32 aKey);
+	IMPORT_C TInt Delete(TUint32 aPartialKey, TUint32 aMask, TUint32 &aErrorKey) ;
+
+	IMPORT_C TInt Get(TUint32 aKey, TInt& aValue);
+	IMPORT_C TInt Set(TUint32 aKey, TInt aValue);
+	
+	IMPORT_C TInt Get(TUint32 aKey, TReal& aValue);
+	IMPORT_C TInt Set(TUint32 aKey, const TReal& aValue);
+
+	IMPORT_C TInt Get(TUint32 aKey, TDes8& aValue);
+	IMPORT_C TInt Get(TUint32 aId, TDes8& aValue, TInt& aActualLength);
+	IMPORT_C TInt Set(TUint32 aKey, const TDesC8& aValue);
+
+	IMPORT_C TInt Get(TUint32 aKey, TDes16& aValue);
+	IMPORT_C TInt Get(TUint32 aId, TDes16& aValue, TInt& aActualLength);
+	IMPORT_C TInt Set(TUint32 aKey, const TDesC16& aValue);
+
+	IMPORT_C TInt GetMeta(TUint32 aKey, TUint32& aMeta);
+
+	IMPORT_C TInt Move (TUint32 aSourcePartialKey, TUint32 aTargetPartialKey, 
+	                    TUint32 aMask, TUint32 &aErrorKey) ;
+
+	IMPORT_C TInt FindL(TUint32 aPartialKey, TUint32 aMask,
+		RArray<TUint32>& aFoundKeys);
+
+	IMPORT_C TInt FindEqL(TUint32 aPartialKey, TUint32 aMask,
+		TInt aValue, RArray<TUint32>& aFoundKeys);
+	IMPORT_C TInt FindEqL(TUint32 aPartialKey, TUint32 aMask,
+		const TReal& aValue, RArray<TUint32>& aFoundKeys);
+	IMPORT_C TInt FindEqL(TUint32 aPartialKey, TUint32 aMask,
+		const TDesC8& aValue, RArray<TUint32>& aFoundKeys);
+	IMPORT_C TInt FindEqL(TUint32 aPartialKey, TUint32 aMask,
+		const TDesC16& aValue, RArray<TUint32>& aFoundKeys);
+
+	IMPORT_C TInt FindNeqL(TUint32 aPartialKey, TUint32 aMask,
+		TInt aValue, RArray<TUint32>& aFoundKeys);
+	IMPORT_C TInt FindNeqL(TUint32 aPartialKey, TUint32 aMask,
+		const TReal& aValue, RArray<TUint32>& aFoundKeys);
+	IMPORT_C TInt FindNeqL(TUint32 aPartialKey, TUint32 aMask,
+		const TDesC8& aValue, RArray<TUint32>& aFoundKeys);
+	IMPORT_C TInt FindNeqL(TUint32 aPartialKey, TUint32 aMask,
+		const TDesC16& aValue, RArray<TUint32>& aFoundKeys);
+
+	IMPORT_C TInt NotifyRequest(TUint32 aKey, TRequestStatus& aStatus);
+	IMPORT_C TInt NotifyRequest(TUint32 aPartialKey, TUint32 aMask,
+		TRequestStatus& aStatus);
+
+	IMPORT_C TInt NotifyCancel(TUint32 aKey);
+	IMPORT_C TInt NotifyCancel(TUint32 aPartialKey, TUint32 aMask);
+	IMPORT_C TInt NotifyCancelAll();
+
+	IMPORT_C TInt Reset();
+	IMPORT_C TInt Reset(TUint32 aKey);
+
+	IMPORT_C TInt StartTransaction(TTransactionMode aMode);
+	IMPORT_C void StartTransaction(TTransactionMode aMode, TRequestStatus& aStatus);
+	IMPORT_C TInt CommitTransaction(TUint32& aKeyInfo);
+	IMPORT_C void CommitTransaction(TDes8& aKeyInfo, TRequestStatus& aStatus);
+	IMPORT_C void CancelTransaction();
+	IMPORT_C void CleanupCancelTransactionPushL();
+	IMPORT_C void FailTransaction();
+	IMPORT_C void CleanupFailTransactionPushL();
+
+	/** Same as CancelTransaction.
+	@publishedPartner
+	@released
+	@see CancelTransaction */
+	inline void RollbackTransaction() 
+		{
+		CancelTransaction();
+		}
+
+	/** Same as CleanupCancelTransactionPushL.
+	@publishedPartner
+	@released
+	@see CleanupCancelTransactionPushL */
+	inline void CleanupRollbackTransactionPushL()
+		{
+		CleanupCancelTransactionPushL();
+		}
+
+	IMPORT_C TInt TransactionState();
+
+	/** This API is for internal use only and for testing purposes.
+	@internalAll
+	*/
+	IMPORT_C static TInt SetGetParameters(const TIpcArgs& aArgs);
+	};
+
+#endif // __CENTRALREPOSITORY_H__