ref: a3f2d6d23ed1be69fee607bdedadc0438fd01305
dir: /sys/src/cmd/vac/fns.h/
int mbunpack(MetaBlock *mb, uchar *p, int n);
void mbinsert(MetaBlock *mb, int i, MetaEntry*);
void mbdelete(MetaBlock *mb, int i, MetaEntry*);
void mbpack(MetaBlock *mb);
uchar *mballoc(MetaBlock *mb, int n);
void mbinit(MetaBlock *mb, uchar *p, int n, int entries);
int mbsearch(MetaBlock*, char*, int*, MetaEntry*);
int mbresize(MetaBlock*, MetaEntry*, int);
int meunpack(MetaEntry*, MetaBlock *mb, int i);
int mecmp(MetaEntry*, char *s);
int mecmpnew(MetaEntry*, char *s);
enum {
VacDirVersion = 8,
FossilDirVersion = 9,
};
int vdsize(VacDir *dir, int);
int vdunpack(VacDir *dir, MetaEntry*);
void vdpack(VacDir *dir, MetaEntry*, int);
VacFile *_vacfileroot(VacFs *fs, VtFile *file);
int _vacfsnextqid(VacFs *fs, uvlong *qid);
void vacfsjumpqid(VacFs*, uvlong step);
Reprog* glob2regexp(char*);
void loadexcludefile(char*);
int includefile(char*);
void excludepattern(char*);