| author | sl |
| Tue, 10 Jun 2014 14:32:02 +0200 | |
| changeset 1 | 260cb5ec6c19 |
| permissions | -rw-r--r-- |
| sl@0 | 1 |
#ifndef __S32FILE_H__ |
| sl@0 | 2 |
#define __S32FILE_H__/* |
| sl@0 | 3 |
* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
| sl@0 | 4 |
* All rights reserved. |
| sl@0 | 5 |
* This component and the accompanying materials are made available |
| sl@0 | 6 |
* under the terms of the License "Eclipse Public License v1.0" |
| sl@0 | 7 |
* which accompanies this distribution, and is available |
| sl@0 | 8 |
* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
| sl@0 | 9 |
* |
| sl@0 | 10 |
* Initial Contributors: |
| sl@0 | 11 |
* Nokia Corporation - initial contribution. |
| sl@0 | 12 |
* |
| sl@0 | 13 |
* Contributors: |
| sl@0 | 14 |
* |
| sl@0 | 15 |
* Description: |
| sl@0 | 16 |
* |
| sl@0 | 17 |
*/ |
| sl@0 | 18 |
|
| sl@0 | 19 |
|
| sl@0 | 20 |
#include <e32base.h> |
| sl@0 | 21 |
#include <f32file.h> |
| sl@0 | 22 |
#include <s32strm.h> |
| sl@0 | 23 |
#include <fstream> |
| sl@0 | 24 |
#include <string> |
| sl@0 | 25 |
#include <memory> |
| sl@0 | 26 |
#include <map> |
| sl@0 | 27 |
|
| sl@0 | 28 |
/** |
| sl@0 | 29 |
* @file |
| sl@0 | 30 |
* @internalComponent |
| sl@0 | 31 |
*/ |
| sl@0 | 32 |
|
| sl@0 | 33 |
#define KPermanentFileStoreLayoutUid TUid::Uid(268435536) |
| sl@0 | 34 |
typedef TUint32 TStreamId; |
| sl@0 | 35 |
/** The value of the null stream ID. */ |
| sl@0 | 36 |
const TUint32 KNullStreamIdValue=0; |
| sl@0 | 37 |
const TUint32 KMaxStreamIdValue=0xfffffff; |
| sl@0 | 38 |
const TUint32 KMaskStreamIdValue=0xfffffff; |
| sl@0 | 39 |
const TInt KShiftStreamIdValue=28; |
| sl@0 | 40 |
|
| sl@0 | 41 |
namespace store_private |
| sl@0 | 42 |
{
|
| sl@0 | 43 |
}; |
| sl@0 | 44 |
|
| sl@0 | 45 |
|
| sl@0 | 46 |
|
| sl@0 | 47 |
|
| sl@0 | 48 |
class CStreamStore |
| sl@0 | 49 |
{
|
| sl@0 | 50 |
public: |
| sl@0 | 51 |
virtual ~CStreamStore(); |
| sl@0 | 52 |
inline TStreamId ExtendL(); |
| sl@0 | 53 |
IMPORT_C void Delete(TStreamId anId); |
| sl@0 | 54 |
IMPORT_C void DeleteL(TStreamId anId); |
| sl@0 | 55 |
|
| sl@0 | 56 |
virtual void CommitL() = 0; |
| sl@0 | 57 |
|
| sl@0 | 58 |
// |
| sl@0 | 59 |
// Internal store emulation functions |
| sl@0 | 60 |
// |
| sl@0 | 61 |
virtual store_private::MemStreamBuf *CreateStoreWriteStream() = 0; |
| sl@0 | 62 |
virtual store_private::MemStreamBuf *CreateStoreReadStream(TStreamId aId) const = 0; |
| sl@0 | 63 |
virtual bool Writable() const = 0; |
| sl@0 | 64 |
}; |
| sl@0 | 65 |
|
| sl@0 | 66 |
class CPersistentStore : public CStreamStore |
| sl@0 | 67 |
{
|
| sl@0 | 68 |
public: |
| sl@0 | 69 |
TStreamId Root(); |
| sl@0 | 70 |
void SetRootL(TStreamId anId); |
| sl@0 | 71 |
protected: |
| sl@0 | 72 |
TStreamId iRoot; |
| sl@0 | 73 |
}; |
| sl@0 | 74 |
|
| sl@0 | 75 |
class CFileStore : public CPersistentStore |
| sl@0 | 76 |
{
|
| sl@0 | 77 |
public: |
| sl@0 | 78 |
IMPORT_C void SetTypeL(const TUidType& aType); |
| sl@0 | 79 |
}; |
| sl@0 | 80 |
|
| sl@0 | 81 |
|
| sl@0 | 82 |
class CPermanentFileStore : public CFileStore |
| sl@0 | 83 |
{
|
| sl@0 | 84 |
public: |
| sl@0 | 85 |
static CFileStore *ReplaceLC(RFs &aFs, const TDesC &aName, TUint aFileMode); |
| sl@0 | 86 |
static CPermanentFileStore* OpenLC(RFs& aFs, const TDesC& aName, TUint aFileMode); |
| sl@0 | 87 |
|
| sl@0 | 88 |
public: |
| sl@0 | 89 |
// |
| sl@0 | 90 |
// Internal store emulation functions |
| sl@0 | 91 |
// |
| sl@0 | 92 |
virtual store_private::MemStreamBuf *CreateStoreWriteStream(); |
| sl@0 | 93 |
virtual store_private::MemStreamBuf *CreateStoreReadStream(TStreamId aId) const; |
| sl@0 | 94 |
virtual bool Writable() const; |
| sl@0 | 95 |
private: |
| sl@0 | 96 |
CPermanentFileStore(const TDesC &aName, TUint aFileMode); |
| sl@0 | 97 |
virtual ~CPermanentFileStore(); |
| sl@0 | 98 |
virtual void CommitL(); |
| sl@0 | 99 |
|
| sl@0 | 100 |
void ReadInData(); |
| sl@0 | 101 |
void ReadStreamData(TStreamId aStreamId, TInt aFrameOffset); |
| sl@0 | 102 |
|
| sl@0 | 103 |
bool iWritable; |
| sl@0 | 104 |
std::auto_ptr<RReadStream> iFileIn; |
| sl@0 | 105 |
std::auto_ptr<RWriteStream> iFileOut; |
| sl@0 | 106 |
|
| sl@0 | 107 |
TUint32 iLastStreamIdCreated; |
| sl@0 | 108 |
typedef std::map<TUint32, store_private::MemStreamBuf *> MemStreamBufPtrMap; |
| sl@0 | 109 |
MemStreamBufPtrMap iStreams; |
| sl@0 | 110 |
}; |
| sl@0 | 111 |
|
| sl@0 | 112 |
|
| sl@0 | 113 |
class RStoreWriteStream : public RWriteStream |
| sl@0 | 114 |
{
|
| sl@0 | 115 |
public: |
| sl@0 | 116 |
IMPORT_C TStreamId CreateLC(CStreamStore& aStore); |
| sl@0 | 117 |
}; |
| sl@0 | 118 |
|
| sl@0 | 119 |
class RStoreReadStream : public RReadStream |
| sl@0 | 120 |
{
|
| sl@0 | 121 |
public: |
| sl@0 | 122 |
RStoreReadStream(); |
| sl@0 | 123 |
IMPORT_C void OpenLC(const CStreamStore& aStore, TStreamId aId); |
| sl@0 | 124 |
}; |
| sl@0 | 125 |
|
| sl@0 | 126 |
|
| sl@0 | 127 |
#endif |