|
sl@0
|
1 |
// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
sl@0
|
2 |
// All rights reserved.
|
|
sl@0
|
3 |
// This component and the accompanying materials are made available
|
|
sl@0
|
4 |
// under the terms of "Eclipse Public License v1.0"
|
|
sl@0
|
5 |
// which accompanies this distribution, and is available
|
|
sl@0
|
6 |
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
|
|
sl@0
|
7 |
//
|
|
sl@0
|
8 |
// Initial Contributors:
|
|
sl@0
|
9 |
// Nokia Corporation - initial contribution.
|
|
sl@0
|
10 |
//
|
|
sl@0
|
11 |
// Contributors:
|
|
sl@0
|
12 |
//
|
|
sl@0
|
13 |
// Description:
|
|
sl@0
|
14 |
//
|
|
sl@0
|
15 |
|
|
sl@0
|
16 |
#include "UP_STD.H"
|
|
sl@0
|
17 |
#include <s32file.h>
|
|
sl@0
|
18 |
|
|
sl@0
|
19 |
EXPORT_C RFilePagePool::RFilePagePool()
|
|
sl@0
|
20 |
/** Default constructor. */
|
|
sl@0
|
21 |
{}
|
|
sl@0
|
22 |
|
|
sl@0
|
23 |
EXPORT_C RFilePagePool::RFilePagePool(CPageCache& aCache)
|
|
sl@0
|
24 |
: TCachePagePool(aCache)
|
|
sl@0
|
25 |
/** Constructor with a page cache for the pool.
|
|
sl@0
|
26 |
|
|
sl@0
|
27 |
@param aCache Page cache for the pool */
|
|
sl@0
|
28 |
{}
|
|
sl@0
|
29 |
|
|
sl@0
|
30 |
EXPORT_C void RFilePagePool::Close()
|
|
sl@0
|
31 |
/** Flushes cached pages to the file, and closes the file. */
|
|
sl@0
|
32 |
{
|
|
sl@0
|
33 |
TCachePagePool::Flush();
|
|
sl@0
|
34 |
Release();
|
|
sl@0
|
35 |
}
|
|
sl@0
|
36 |
|
|
sl@0
|
37 |
EXPORT_C void RFilePagePool::Release()
|
|
sl@0
|
38 |
/** Closes the file without flushing the cache. */
|
|
sl@0
|
39 |
{
|
|
sl@0
|
40 |
Purge();
|
|
sl@0
|
41 |
iFile.Close();
|
|
sl@0
|
42 |
}
|
|
sl@0
|
43 |
|
|
sl@0
|
44 |
EXPORT_C TInt RFilePagePool::Flush()
|
|
sl@0
|
45 |
/** Flushes the page cache and the file.
|
|
sl@0
|
46 |
|
|
sl@0
|
47 |
@return KErrNone if successful, otherwise another of the system-wide error
|
|
sl@0
|
48 |
codes. */
|
|
sl@0
|
49 |
{
|
|
sl@0
|
50 |
TInt r=TCachePagePool::Flush();
|
|
sl@0
|
51 |
if (r==KErrNone)
|
|
sl@0
|
52 |
{
|
|
sl@0
|
53 |
r=iFile.Flush();
|
|
sl@0
|
54 |
}
|
|
sl@0
|
55 |
return r;
|
|
sl@0
|
56 |
}
|
|
sl@0
|
57 |
|
|
sl@0
|
58 |
EXPORT_C void RFilePagePool::FlushL()
|
|
sl@0
|
59 |
/** Flushes the page cache and the file, leaving with a system-wide error code
|
|
sl@0
|
60 |
if an error occurs. */
|
|
sl@0
|
61 |
{
|
|
sl@0
|
62 |
TCachePagePool::FlushL();
|
|
sl@0
|
63 |
__LEAVE_IF_ERROR(iFile.Flush());
|
|
sl@0
|
64 |
}
|
|
sl@0
|
65 |
|
|
sl@0
|
66 |
EXPORT_C TPageRef RFilePagePool::ExtendL(const TAny* aPage,TPageReclamation)
|
|
sl@0
|
67 |
{
|
|
sl@0
|
68 |
TInt pos=0;
|
|
sl@0
|
69 |
__LEAVE_IF_ERROR(iFile.Seek(ESeekEnd,pos));
|
|
sl@0
|
70 |
__ASSERT_DEBUG(pos>=0,User::Invariant());
|
|
sl@0
|
71 |
if (pos%KPoolPageSize!=0)
|
|
sl@0
|
72 |
__LEAVE(KErrCorrupt);
|
|
sl@0
|
73 |
//
|
|
sl@0
|
74 |
__LEAVE_IF_ERROR(iFile.Write(pos,TPtrC8((const TUint8*)aPage,KPoolPageSize)));
|
|
sl@0
|
75 |
return TPageRef(pos/KPoolPageSize+1);
|
|
sl@0
|
76 |
}
|
|
sl@0
|
77 |
|
|
sl@0
|
78 |
EXPORT_C void RFilePagePool::WriteL(TPageRef aRef,const TAny* aPage,TPageChange)
|
|
sl@0
|
79 |
{
|
|
sl@0
|
80 |
TInt pos=(aRef.Value()-1)*KPoolPageSize;
|
|
sl@0
|
81 |
__LEAVE_IF_ERROR(iFile.Write(pos,TPtrC8((const TUint8*)aPage,KPoolPageSize)));
|
|
sl@0
|
82 |
}
|
|
sl@0
|
83 |
|
|
sl@0
|
84 |
EXPORT_C void RFilePagePool::ReadL(TPageRef aRef,TAny* aPage)
|
|
sl@0
|
85 |
{
|
|
sl@0
|
86 |
TInt pos=(aRef.Value()-1)*KPoolPageSize;
|
|
sl@0
|
87 |
TPtr8 ptr((TUint8*)aPage,KPoolPageSize);
|
|
sl@0
|
88 |
__LEAVE_IF_ERROR(iFile.Read(pos,ptr));
|
|
sl@0
|
89 |
if (ptr.Length()<KPoolPageSize)
|
|
sl@0
|
90 |
__LEAVE(KErrEof);
|
|
sl@0
|
91 |
}
|
|
sl@0
|
92 |
|