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- /*
- * This file is part of the UCB release of Plan 9. It is subject to the license
- * terms in the LICENSE file found in the top-level directory of this
- * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
- * part of the UCB release of Plan 9, including this file, may be copied,
- * modified, propagated, or distributed except according to the terms contained
- * in the LICENSE file.
- */
- typedef struct MetaBlock MetaBlock;
- typedef struct MetaEntry MetaEntry;
- #define MaxBlock (1UL<<31)
- enum {
- BytesPerEntry = 100, /* estimate of bytes per dir entries - determines number of index entries in the block */
- FullPercentage = 80, /* don't allocate in block if more than this percentage full */
- FlushSize = 200, /* number of blocks to flush */
- DirtyPercentage = 50 /* maximum percentage of dirty blocks */
- };
- struct MetaEntry
- {
- uchar *p;
- ushort size;
- };
- struct MetaBlock
- {
- int maxsize; /* size of block */
- int size; /* size used */
- int free; /* free space within used size */
- int maxindex; /* entries allocated for table */
- int nindex; /* amount of table used */
- int unbotch;
- uchar *buf;
- };
- struct VacDirEnum
- {
- VacFile *file;
- u32int boff;
- int i, n;
- VacDir *buf;
- };
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