#pragma src "/usr/inferno/liblogfs" enum {	LogfsTnone = 0xff,	LogfsTboot = 0x01,	LogfsTlog = 0x06,	LogfsTdata = 0x18,	LogfsTbad = -1,	LogfsTworse = -2,	LogfsMagic = 'V',}; enum {	LogfsLogTstart = 's',	LogfsLogTcreate = 'c',	LogfsLogTtrunc = 't',	LogfsLogTremove = 'r',	LogfsLogTwrite = 'w',	LogfsLogTwstat = 'W',	LogfsLogTend = 'e',}; enum {	LogfsOpenFlagNoPerm = 1,	LogfsOpenFlagWstatAllow = 2,}; typedef struct LogfsLowLevel LogfsLowLevel; typedef enum LogfsLowLevelFettleAction {	LogfsLowLevelFettleActionMarkBad,	LogfsLowLevelFettleActionErase,	LogfsLowLevelFettleActionFormat,	LogfsLowLevelFettleActionEraseAndFormat,} LogfsLowLevelFettleAction; typedef enum LogfsLowLevelReadResult {	LogfsLowLevelReadResultOk,	LogfsLowLevelReadResultSoftError,	LogfsLowLevelReadResultHardError,	LogfsLowLevelReadResultBad,	LogfsLowLevelReadResultAllOnes,} LogfsLowLevelReadResult; typedef short LOGFSGETBLOCKTAGFN(LogfsLowLevel *ll, long block);typedef void LOGFSSETBLOCKTAGFN(LogfsLowLevel *ll, long block, short tag);typedef ulong LOGFSGETBLOCKPATHFN(LogfsLowLevel *ll, long block);typedef void LOGFSSETBLOCKPATHFN(LogfsLowLevel *ll, long block, ulong path);typedef long LOGFSFINDFREEBLOCKFN(LogfsLowLevel *ll, long *freeblocks);typedef char *LOGFSREADBLOCKFN(LogfsLowLevel *ll, void *buf, long block, LogfsLowLevelReadResult *blocke);typedef char *LOGFSWRITEBLOCKFN(LogfsLowLevel *ll, void *buf, uchar tag, ulong path, int xcount, long *xdata, long block);typedef char *LOGFSERASEBLOCKFN(LogfsLowLevel *ll, long block, void **llsave, int *markedbad);typedef char *LOGFSFORMATBLOCKFN(LogfsLowLevel *ll, long block, uchar tag, long path, long baseblock, long sizeinblocks, int xcount, long *xdata, void *llsave, int *markedbad);typedef char *LOGFSREFORMATBLOCKFN(LogfsLowLevel *ll, long block, uchar tag, long path, int xcount, long *xdata, void *llsave, int *markedbad);typedef void LOGFSMARKBLOCKBADFN(LogfsLowLevel *ll, long block);typedef int LOGFSGETBLOCKSFN(LogfsLowLevel *ll);typedef long LOGFSGETBASEBLOCKFN(LogfsLowLevel *ll);typedef int LOGFSGETBLOCKSIZEFN(LogfsLowLevel *ll);typedef int LOGFSGETBLOCKPARTIALFORMATSTATUSFN(LogfsLowLevel *ll, long block);typedef ulong LOGFSCALCRAWADDRESSFN(LogfsLowLevel *ll, long pblock, int dataoffset);typedef char *LOGFSOPENFN(LogfsLowLevel *ll, long base, long limit, int trace, int xcount, long *xdata);typedef char *LOGFSGETBLOCKSTATUSFN(LogfsLowLevel *ll, long block, int *magicfound, void **llsave, LogfsLowLevelReadResult *result);typedef int LOGFSCALCFORMATFN(LogfsLowLevel *ll, long base, long limit, long bootsize, long *baseblock, long *limitblock, long *bootblocks);typedef int LOGFSGETOPENSTATUSFN(LogfsLowLevel *ll);typedef void LOGFSFREEFN(LogfsLowLevel *ll);typedef char *LOGFSREADPAGERANGEFN(LogfsLowLevel *ll, uchar *data, long block, int page, int offset, int count, LogfsLowLevelReadResult *result);typedef char *LOGFSWRITEPAGEFN(LogfsLowLevel *ll, uchar *data, long block, int page);typedef char *LOGFSSYNCFN(LogfsLowLevel *ll); struct LogfsLowLevel {	int l2pagesize;	int l2pagesperblock;	long blocks;	int pathbits;	LOGFSOPENFN *open;	LOGFSGETBLOCKTAGFN *getblocktag;	LOGFSSETBLOCKTAGFN *setblocktag;	LOGFSGETBLOCKPATHFN *getblockpath;	LOGFSSETBLOCKPATHFN *setblockpath;	LOGFSREADPAGERANGEFN *readpagerange;	LOGFSWRITEPAGEFN *writepage;	LOGFSFINDFREEBLOCKFN *findfreeblock;	LOGFSREADBLOCKFN *readblock;	LOGFSWRITEBLOCKFN *writeblock;	LOGFSERASEBLOCKFN *eraseblock;	LOGFSFORMATBLOCKFN *formatblock;	LOGFSREFORMATBLOCKFN *reformatblock;	LOGFSMARKBLOCKBADFN *markblockbad;	LOGFSGETBASEBLOCKFN *getbaseblock;	LOGFSGETBLOCKSIZEFN *getblocksize;	LOGFSGETBLOCKPARTIALFORMATSTATUSFN *getblockpartialformatstatus;	LOGFSCALCRAWADDRESSFN *calcrawaddress;	LOGFSGETBLOCKSTATUSFN *getblockstatus;	LOGFSCALCFORMATFN *calcformat;	LOGFSGETOPENSTATUSFN *getopenstatus;	LOGFSFREEFN *free;	LOGFSSYNCFN *sync;}; extern char Eio[];extern char Ebadarg[];extern char Eperm[]; char *logfstagname(uchar tag); typedef struct LogfsIdentityStore LogfsIdentityStore;char *logfsisnew(LogfsIdentityStore **isp);void logfsisfree(LogfsIdentityStore **isp);char *logfsisgroupcreate(LogfsIdentityStore *is, char *groupname, char *groupid);char *logfsisgrouprename(LogfsIdentityStore *is, char *oldgroupname, char *newgroupname);char *logfsisgroupsetleader(LogfsIdentityStore *is, char *groupname, char *leadername);char *logfsisgroupaddmember(LogfsIdentityStore *is, char *groupname, char *membername);char *logfsisgroupremovemember(LogfsIdentityStore *is, char *groupname, char *nonmembername);char *logfsisusersread(LogfsIdentityStore *is, void *buf, long n, ulong offset, long *nr); typedef struct LogfsBoot LogfsBoot;typedef struct Logfs Logfs;typedef struct LogfsServer LogfsServer; char *logfsformat(LogfsLowLevel *ll, long base, long limit, long bootsize, int trace);char *logfsbootopen(LogfsLowLevel *ll, long base, long limit, int trace, int printbad, LogfsBoot **lbp);void logfsbootfree(LogfsBoot *lb);char *logfsbootread(LogfsBoot *lb, void *buf, long n, ulong offset);char *logfsbootwrite(LogfsBoot *lb, void *buf, long n, ulong offset);char *logfsbootio(LogfsBoot *lb, void *buf, long n, ulong offset, int write);char *logfsbootmap(LogfsBoot *lb, ulong laddress, ulong *lblockp, int *lboffsetp, int *lpagep, int *lpageoffsetp, ulong *pblockp, ulong *paddressp);long logfsbootgetiosize(LogfsBoot *lb);long logfsbootgetsize(LogfsBoot *lb);void logfsboottrace(LogfsBoot *lb, int level); char *logfsserverattach(LogfsServer *s, u32int fid, char *uname, Qid *qid);char *logfsserverclunk(LogfsServer *s, u32int fid);char *logfsservercreate(LogfsServer *server, u32int fid, char *name, u32int perm, uchar mode, Qid *qid);char *logfsserverflush(LogfsServer *server);char *logfsservernew(LogfsBoot *lb, LogfsLowLevel *ll, LogfsIdentityStore *is, ulong openflags, int trace, LogfsServer **sp);char *logfsserveropen(LogfsServer *s, u32int fid, uchar mode, Qid *qid);char *logfsserverread(LogfsServer *s, u32int fid, u32int offset, u32int count, uchar *buf, u32int buflen, u32int *rcount);char *logfsserverremove(LogfsServer *server, u32int fid);char *logfsserverstat(LogfsServer *s, u32int fid, uchar *buf, u32int bufsize, ushort *count);char *logfsserverwalk(LogfsServer *s, u32int fid, u32int newfid, ushort nwname, char **wname, ushort *nwqid, Qid *wqid);char *logfsserverwrite(LogfsServer *server, u32int fid, u32int offset, u32int count, uchar *buf, u32int *rcount);char *logfsserverwstat(LogfsServer *server, u32int fid, uchar *stat, ushort nstat);void logfsserverfree(LogfsServer **sp);char *logfsserverlogsweep(LogfsServer *server, int justone, int *didsomething);char *logfsserverreadpathextent(LogfsServer *server, u32int path, int nth, u32int *flashaddrp, u32int *lengthp,	long *blockp, int *pagep, int *offsetp); char *logfsservertestcmd(LogfsServer *s, int argc, char **argv);void logfsservertrace(LogfsServer *s, int level); /* * implemented by the environment */ulong logfsnow(void);void *logfsrealloc(void *p, ulong size);void logfsfreemem(void *p);