85 lines
2 KiB
C
85 lines
2 KiB
C
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#ifndef MTOOLS_FSP_H
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#define MTOOLS_FSP_H
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#include "stream.h"
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#include "msdos.h"
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#include "fs.h"
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typedef enum fatAccessMode_t {
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FAT_ACCESS_READ,
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FAT_ACCESS_WRITE
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} fatAccessMode_t;
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typedef struct Fs_t {
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Class_t *Class;
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int refs;
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Stream_t *Next;
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Stream_t *Buffer;
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int serialized;
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unsigned long serial_number;
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int cluster_size;
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unsigned int sector_size;
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int fat_error;
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unsigned int (*fat_decode)(struct Fs_t *This, unsigned int num);
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void (*fat_encode)(struct Fs_t *This, unsigned int num,
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unsigned int code);
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Stream_t *Direct;
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int fat_dirty;
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unsigned int fat_start;
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unsigned int fat_len;
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int num_fat;
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unsigned int end_fat;
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unsigned int last_fat;
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int fat_bits;
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struct FatMap_t *FatMap;
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int dir_start;
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int dir_len;
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int clus_start;
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int num_clus;
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char *drive; /* for error messages */
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/* fat 32 */
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unsigned int primaryFat;
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unsigned int writeAllFats;
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unsigned int rootCluster;
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int infoSectorLoc;
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unsigned int last; /* last sector allocated, or MAX32 if unknown */
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unsigned int freeSpace; /* free space, or MAX32 if unknown */
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int preallocatedClusters;
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int lastFatSectorNr;
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unsigned char *lastFatSectorData;
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fatAccessMode_t lastFatAccessMode;
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int sectorMask;
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int sectorShift;
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} Fs_t;
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int fs_free(Stream_t *Stream);
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void set_fat12(Fs_t *Fs);
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void set_fat16(Fs_t *Fs);
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void set_fat32(Fs_t *Fs);
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unsigned int get_next_free_cluster(Fs_t *Fs, unsigned int last);
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unsigned int fatDecode(Fs_t *This, unsigned int pos);
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void fatAppend(Fs_t *This, unsigned int pos, unsigned int newpos);
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void fatDeallocate(Fs_t *This, unsigned int pos);
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void fatAllocate(Fs_t *This, unsigned int pos, unsigned int value);
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void fatEncode(Fs_t *This, unsigned int pos, unsigned int value);
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int fat_read(Fs_t *This, struct bootsector *boot, int fat_bits,
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size_t tot_sectors, int nodups);
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void fat_write(Fs_t *This);
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int zero_fat(Fs_t *Fs, int media_descriptor);
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extern Class_t FsClass;
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int fsPreallocateClusters(Fs_t *Fs, long);
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Fs_t *getFs(Stream_t *Stream);
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#endif
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