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/* a hash file */
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struct Ndbhf
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{
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Ndbhf *next;
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int fd;
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ulong dbmtime; /* mtime of data base */
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int hlen; /* length (in entries) of hash table */
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char attr[Ndbalen]; /* attribute hashed */
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uchar buf[256]; /* hash file buffer */
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long off; /* offset of first byte of buffer */
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int len; /* length of valid data in buffer */
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};
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char* _ndbparsetuple(char*, Ndbtuple**);
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Ndbtuple* _ndbparseline(char*);
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#define ISWHITE(x) ((x) == ' ' || (x) == '\t' || (x) == '\r')
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#define EATWHITE(x) while(ISWHITE(*(x)))(x)++
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extern Ndbtuple *_ndbtfree;
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/* caches */
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void _ndbcacheflush(Ndb *db);
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int _ndbcachesearch(Ndb *db, Ndbs *s, char *attr, char *val, Ndbtuple **t);
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Ndbtuple* _ndbcacheadd(Ndb *db, Ndbs *s, char *attr, char *val, Ndbtuple *t);
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