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block.h - dedup - deduplicating backup program |
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git clone git://bitreich.org/dedup/ git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/dedup/ (git://bitreich.org) |
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README |
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LICENSE |
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--- |
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block.h (1308B) |
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--- |
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1 enum { |
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2 B_READ = 1 << 0, |
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3 B_RDWR = 1 << 1, |
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4 }; |
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5 |
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6 struct bctx { |
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7 void *gctx; /* generic layer context (unused) */ |
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8 void *cctx; /* compression layer context */ |
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9 void *ectx; /* encryption layer context */ |
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10 void *sctx; /* storage layer context */ |
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11 }; |
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12 |
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13 /* |
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14 * Block operations structure. |
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15 * This is implemented by each of the block layers. |
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16 */ |
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17 struct bops { |
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18 int (*creat)(struct bctx *, char *, int); |
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19 int (*open)(struct bctx *, char *, int, int); |
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20 int (*put)(struct bctx *, void *, size_t, unsigned char *); |
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21 int (*get)(struct bctx *, unsigned char *, void *, size_t *); |
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22 int (*rm)(struct bctx *, unsigned char *); |
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23 int (*gc)(struct bctx *); |
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24 int (*sync)(struct bctx *); |
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25 int (*close)(struct bctx *); |
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26 }; |
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27 |
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28 /* block.c */ |
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29 extern int bcreat(char *, int, struct bctx **); |
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30 extern int bopen(char *, int, int, struct bctx **); |
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31 extern int bput(struct bctx *, void *, size_t, unsigned char *); |
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32 extern int bget(struct bctx *, unsigned char *, void *, size_t *); |
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33 extern int brm(struct bctx *, unsigned char *); |
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34 extern int bgc(struct bctx *); |
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35 extern int bcheck(struct bctx *, unsigned char *); |
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36 extern int bsync(struct bctx *); |
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37 extern int bclose(struct bctx *); |
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38 |
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39 /* bcompress.c */ |
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40 extern struct bops *bcompressops(void); |
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41 |
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42 /* bencrypt.c */ |
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43 struct bops *bencryptops(void); |
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44 |
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45 /* bstorage.c */ |
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46 extern struct bops *bstorageops(void); |
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