projects / apple / hfs.git / blame
| Commit | Line | Data |
|---|---|---|
| de8ee011 A |
1 | // |
| 2 | // lf_hfs_file_extent_mapping.h | |
| 3 | // hfs | |
| 4 | // | |
| 5 | // Created by Yakov Ben Zaken on 22/03/2018. | |
| 6 | // | |
| 7 | ||
| 8 | #ifndef lf_hfs_file_extent_mapping_h | |
| 9 | #define lf_hfs_file_extent_mapping_h | |
| 10 | ||
| 11 | /* File Extent Mapping routines*/ | |
| 12 | OSErr FlushExtentFile( ExtendedVCB *vcb ); | |
| 13 | ||
| 14 | int32_t CompareExtentKeysPlus( const HFSPlusExtentKey *searchKey, const HFSPlusExtentKey *trialKey ); | |
| 15 | ||
| 16 | OSErr SearchExtentFile( ExtendedVCB *vcb, | |
| 17 | const FCB *fcb, | |
| 18 | int64_t filePosition, | |
| 19 | HFSPlusExtentKey *foundExtentKey, | |
| 20 | HFSPlusExtentRecord foundExtentData, | |
| 21 | u_int32_t *foundExtentDataIndex, | |
| 22 | u_int32_t *extentBTreeHint, | |
| 23 | u_int32_t *endingFABNPlusOne ); | |
| 24 | ||
| 25 | OSErr TruncateFileC( ExtendedVCB *vcb, | |
| 26 | FCB *fcb, | |
| 27 | int64_t peof, | |
| 28 | int deleted, | |
| 29 | int rsrc, | |
| 30 | uint32_t fileid, | |
| 31 | Boolean truncateToExtent ); | |
| 32 | ||
| 33 | OSErr ExtendFileC( ExtendedVCB *vcb, | |
| 34 | FCB *fcb, | |
| 35 | int64_t bytesToAdd, | |
| 36 | u_int32_t blockHint, | |
| 37 | u_int32_t flags, | |
| 38 | int64_t *actualBytesAdded ); | |
| 39 | ||
| 40 | OSErr MapFileBlockC( ExtendedVCB *vcb, | |
| 41 | FCB *fcb, | |
| 42 | size_t numberOfBytes, | |
| 43 | off_t offset, | |
| 44 | daddr64_t *startBlock, | |
| 45 | size_t *availableBytes ); | |
| 46 | ||
| 47 | OSErr HeadTruncateFile( ExtendedVCB *vcb, | |
| 48 | FCB *fcb, | |
| 49 | u_int32_t headblks ); | |
| 50 | ||
| 51 | int AddFileExtent( ExtendedVCB *vcb, | |
| 52 | FCB *fcb, | |
| 53 | u_int32_t startBlock, | |
| 54 | u_int32_t blockCount ); | |
| 55 | ||
| 56 | Boolean NodesAreContiguous( ExtendedVCB *vcb, | |
| 57 | FCB *fcb, | |
| 58 | u_int32_t nodeSize ); | |
| 59 | ||
| 60 | #endif /* lf_hfs_file_extent_mapping_h */ |