plan9front/sys/src/cmd/vac/dat.h

39 lines
801 B
C

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;
};