| | 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 */ |
projects / apple / hfs.git / blame_incremental