|
1 // Copyright (c) 2010 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 the License "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 // TOC Partition Management for Embedded MMC devices |
|
15 // |
|
16 // |
|
17 |
|
18 #include "toc.h" |
|
19 |
|
20 |
|
21 /* |
|
22 * Search entry in TOC with aName as part of ItemName. |
|
23 */ |
|
24 TInt Toc::GetItemByName(const TText8* aName, STocItem& aItem) |
|
25 { |
|
26 if ( aName == NULL ) |
|
27 { |
|
28 return KErrNotFound; |
|
29 } |
|
30 |
|
31 // calculate length for name to be searched |
|
32 TUint nameLen = 0; |
|
33 for (; nameLen < KMaxItemNameLen && aName[nameLen] != 0; nameLen++) {}; |
|
34 |
|
35 if ( !nameLen ) |
|
36 return KErrGeneral; // zero length or Blank Name |
|
37 |
|
38 // check all items in TOC |
|
39 for (TUint i=0; i < KMaxNbrOfTocItems && iTOC[i].iStart != KEndOfToc; i++) |
|
40 { |
|
41 // calculate length of current item |
|
42 TUint fileNameLen = 0; |
|
43 for (; fileNameLen < KMaxItemNameLen && iTOC[i].iFileName[fileNameLen] != 0; fileNameLen++) {}; |
|
44 |
|
45 if ( fileNameLen < nameLen ) |
|
46 continue; // file name too short |
|
47 |
|
48 // compare Item with aName |
|
49 for (TUint k = 0; k <= (fileNameLen - nameLen); k++ ) |
|
50 { |
|
51 TUint l=0; |
|
52 for (; l < nameLen; l++ ) |
|
53 { |
|
54 if ( aName[l] != iTOC[i].iFileName[k+l] ) |
|
55 break; |
|
56 } |
|
57 |
|
58 if ( l == nameLen ) |
|
59 { |
|
60 // item found |
|
61 aItem = iTOC[i]; |
|
62 aItem.iStart += (iTocStartSector << KSectorShift); |
|
63 return KErrNone; |
|
64 } |
|
65 } |
|
66 } |
|
67 |
|
68 return KErrNotFound; |
|
69 } |
|
70 |
|
71 // End of File |