diff options
Diffstat (limited to 'include/logfs.h')
| -rwxr-xr-x | include/logfs.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/include/logfs.h b/include/logfs.h new file mode 100755 index 00000000..7c95c27d --- /dev/null +++ b/include/logfs.h @@ -0,0 +1,156 @@ +#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); |