ref: 3d5ff2d9beb0bdf1aef5ab7afca578ebe4f55795
dir: /fns.h/
#pragma varargck type "M" Msg*
#pragma varargck type "P" Kvp*
#pragma varargck type "K" Key*
#pragma varargck type "V" Val*
#pragma varargck type "B" Bptr
#pragma varargck type "R" Arange*
#pragma varargck type "X" char*
#pragma varargck type "Q" Qid
extern Gefs* fs;
extern int debug;
extern int permissive;
extern char* reamuser;
extern Blk* blkbuf;
#define UNPACK8(p) (((uchar*)(p))[0])
#define UNPACK16(p) ((((uchar*)(p))[0]<<8)|(((uchar*)(p))[1]))
#define UNPACK32(p) ((((uchar*)(p))[0]<<24)|(((uchar*)(p))[1]<<16)|\
(((uchar*)(p))[2]<<8)|(((uchar*)(p))[3]))
#define UNPACK64(p) (((u64int)((((uchar*)(p))[0]<<24)|(((uchar*)(p))[1]<<16)|\
(((uchar*)(p))[2]<<8)|(((uchar*)(p))[3])))<<32 |\
((u64int)((((uchar*)(p))[4]<<24)|(((uchar*)(p))[5]<<16)|\
(((uchar*)(p))[6]<<8)|(((uchar*)(p))[7]))))
#define PACK8(p,v) do{(p)[0]=(v);}while(0)
#define PACK16(p,v) do{(p)[0]=(v)>>8;(p)[1]=(v);}while(0)
#define PACK32(p,v) do{(p)[0]=(v)>>24;(p)[1]=(v)>>16;(p)[2]=(v)>>8;(p)[3]=(v);}while(0)
#define PACK64(p,v) do{(p)[0]=(v)>>56;(p)[1]=(v)>>48;(p)[2]=(v)>>40;(p)[3]=(v)>>32;\
(p)[4]=(v)>>24;(p)[5]=(v)>>16;(p)[6]=(v)>>8;(p)[7]=(v);}while(0)
Blk* newdblk(Tree *, int, vlong);
Blk* newblk(Tree *, int);
Blk* dupblk(Tree *, Blk*);
Blk* getroot(Tree*, int*);
Blk* getblk(Bptr, int);
Blk* holdblk(Blk*);
void dropblk(Blk*);
void lrutop(Blk*);
void lrubot(Blk*);
void cacheins(Blk*);
void cachedel(vlong);
Blk* cacheget(vlong);
Blk* cachepluck(void);
void qinit(Syncq*);
void qput(Syncq*, Qent);
Arena* getarena(vlong);
int syncblk(Blk*);
void enqueue(Blk*);
void epochstart(int);
void epochend(int);
void epochclean(void);
void freesync(void);
void freeblk(Tree*, Blk*, Bptr);
int dlappend(Dlist *dl, Bptr);
int killblk(Tree*, Bptr);
int blkdealloc(vlong);
ushort blkfill(Blk*);
uvlong blkhash(Blk*);
uvlong bufhash(void*, usize);
u32int ihash(uvlong);
void finalize(Blk*);
char* updatesnap(Tree**, Tree*, char*);
char* labelsnap(Tree*, char*);
char* delsnap(Tree*, vlong, char*);
Tree* opensnap(char*);
vlong successor(vlong);
void closesnap(Tree*);
void reamfs(char*);
void growfs(char*);
int loadarena(Arena*, Bptr, vlong);
void loadfs(char*);
void sync(void);
int loadlog(Arena*, Bptr);
int scandead(Dlist*, int, void(*)(Bptr, void*), void*);
int endfs(void);
int compresslog(Arena*);
char* flushdlcache(int);
void setval(Blk*, Kvp*);
Conn* newconn(int, int);
char* loadusers(int, Tree*);
User* uid2user(int);
User* name2user(char*);
char* btupsert(Tree*, Msg*, int);
char* btlookup(Tree*, Key*, Kvp*, char*, int);
void btnewscan(Scan*, char*, int);
char* btenter(Tree*, Scan*);
char* btnext(Tree*, Scan*, Kvp*);
void btexit(Tree*, Scan*);
int checkflag(Blk *b, int);
void setflag(Blk *b, int);
void clrflag(Blk *b, int);
char* estrdup(char*);
int keycmp(Key *, Key *);
void cpkey(Key*, Key*, char*, int);
void cpkvp(Kvp*, Kvp*, char*, int);
/* for dumping */
void getval(Blk*, int, Kvp*);
void getmsg(Blk*, int, Msg*);
Bptr getptr(Kvp*, int*);
void initshow(void);
void showblk(int, Blk*, char*, int);
void showbp(int, Bptr, int);
void showtreeroot(int, Tree*);
void showballoc(int, char**, int);
void showdlist(int, char**, int);
void showtree(int, char**, int);
void showsnap(int, char**, int);
void showfid(int, char**, int);
void showcache(int, char**, int);
void showfree(int, char**, int);
int checkfs(int);
#define dprint(...) \
do{ \
if(debug) fprint(2, __VA_ARGS__); \
}while(0)
char* pack8(int*, char*, char*, uchar);
char* pack16(int*, char*, char*, ushort);
char* pack32(int*, char*, char*, uint);
char* pack64(int*, char*, char*, uvlong);
char* packstr(int*, char*, char*, char*);
int dir2kv(vlong, Xdir*, Kvp*, char*, int);
int dir2statbuf(Xdir*, char*, int);
void dlist2kv(Dlist*, Kvp*, char*, int);
void lbl2kv(char*, vlong, Kvp*, char*, int);
void link2kv(vlong, vlong, Kvp*, char*, int);
void tree2kv(Tree*, Kvp*, char*, int);
int kv2dir(Kvp*, Xdir*);
void kv2dlist(Kvp*, Dlist*);
void kv2link(Kvp*, vlong*, vlong*);
void kv2qid(Kvp*, Qid*);
int kv2statbuf(Kvp*, char*, int);
char* packarena(char*, int, Arena*);
char* packbp(char*, int, Bptr*);
char* packdkey(char*, int, vlong, char*);
char* packdval(char*, int, Xdir*);
char* packlabel(char*, int, char*);
char* packsnap(char*, int, vlong);
char* packsuper(char*, int, vlong);
char* packtree(char*, int, Tree*);
char* packsb(char*, int, Fshdr*);
char* unpackarena(Arena*, char*, int);
Bptr unpackbp(char*, int);
char* unpackdkey(char*, int, vlong*);
Tree* unpacktree(Tree*, char*, int);
char* unpacksb(Fshdr*, char*, int);
/* void* is a bit hacky, but we want both signed and unsigned to work */
char* unpack8(int*, char*, char*, void*);
char* unpack16(int*, char*, char*, void*);
char* unpack32(int*, char*, char*, void*);
char* unpack64(int*, char*, char*, void*);
char* unpackstr(int*, char*, char*, char**);
/* fmt */
int Bconv(Fmt*);
int Mconv(Fmt*);
int Pconv(Fmt*);
int Rconv(Fmt*);
int Kconv(Fmt*);
int Qconv(Fmt*);
Chan* mkchan(int);
void* chrecv(Chan*);
void chsend(Chan*, void*);
void runfs(int, void*);
void runwrite(int, void*);
void runread(int, void*);
void runcons(int, void*);
void runtasks(int, void*);
void runsync(int, void*);