ref: c04f70e2bb4a02655bb8a6247a8f07f75ff431bd
dir: /include/logfs.h/
#pragma src "/usr/inferno/liblogfs" typedef struct LogfsLowLevel LogfsLowLevel; typedef struct LogfsBoot LogfsBoot; typedef struct Logfs Logfs; typedef struct LogfsServer LogfsServer; typedef struct LogfsIdentityStore LogfsIdentityStore; #pragma incomplete Logfs #pragma incomplete LogfsServer #pragma incomplete LogfsIdentityStore #pragma incomplete LogfsBoot typedef u64int Pageset; #define BITSPERSET (sizeof(Pageset)*8) #define PAGETOP ((Pageset)1<<(BITSPERSET-1)) 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 enum LogfsLowLevelReadResult { LogfsLowLevelReadResultOk, LogfsLowLevelReadResultSoftError, LogfsLowLevelReadResultHardError, LogfsLowLevelReadResultBad, LogfsLowLevelReadResultAllOnes, } LogfsLowLevelReadResult; typedef short LOGFSGETBLOCKTAGFN(LogfsLowLevel*, long); typedef void LOGFSSETBLOCKTAGFN(LogfsLowLevel*, long, short); typedef ulong LOGFSGETBLOCKPATHFN(LogfsLowLevel*, long); typedef void LOGFSSETBLOCKPATHFN(LogfsLowLevel*, long, ulong); typedef long LOGFSFINDFREEBLOCKFN(LogfsLowLevel*, long*); typedef char *LOGFSREADBLOCKFN(LogfsLowLevel*, void*, long, LogfsLowLevelReadResult*); typedef char *LOGFSWRITEBLOCKFN(LogfsLowLevel*, void*, uchar, ulong, int, long*, long); typedef char *LOGFSERASEBLOCKFN(LogfsLowLevel*, long, void **, int*); typedef char *LOGFSFORMATBLOCKFN(LogfsLowLevel*, long, uchar, long, long, long, int, long*, void*, int*); typedef char *LOGFSREFORMATBLOCKFN(LogfsLowLevel*, long, uchar, long, int, long*, void*, int*); typedef void LOGFSMARKBLOCKBADFN(LogfsLowLevel*, long); typedef int LOGFSGETBLOCKSFN(LogfsLowLevel*); typedef long LOGFSGETBASEBLOCKFN(LogfsLowLevel*); typedef int LOGFSGETBLOCKSIZEFN(LogfsLowLevel*); typedef int LOGFSGETBLOCKPARTIALFORMATSTATUSFN(LogfsLowLevel*, long); typedef ulong LOGFSCALCRAWADDRESSFN(LogfsLowLevel*, long, int); typedef char *LOGFSOPENFN(LogfsLowLevel*, long, long, int, int, long*); typedef char *LOGFSGETBLOCKSTATUSFN(LogfsLowLevel*, long, int*, void **, LogfsLowLevelReadResult*); typedef int LOGFSCALCFORMATFN(LogfsLowLevel*, long, long, long, long*, long*, long*); typedef int LOGFSGETOPENSTATUSFN(LogfsLowLevel*); typedef void LOGFSFREEFN(LogfsLowLevel*); typedef char *LOGFSREADPAGERANGEFN(LogfsLowLevel*, uchar*, long, int, int, int, LogfsLowLevelReadResult*); typedef char *LOGFSWRITEPAGEFN(LogfsLowLevel*, uchar*, long, int); typedef char *LOGFSSYNCFN(LogfsLowLevel*); 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; }; char *logfstagname(uchar); char *logfsisnew(LogfsIdentityStore **); void logfsisfree(LogfsIdentityStore **); char *logfsisgroupcreate(LogfsIdentityStore*, char*, char*); char *logfsisgrouprename(LogfsIdentityStore*, char*, char*); char *logfsisgroupsetleader(LogfsIdentityStore*, char*, char*); char *logfsisgroupaddmember(LogfsIdentityStore*, char*, char*); char *logfsisgroupremovemember(LogfsIdentityStore*, char*, char*); char *logfsisusersread(LogfsIdentityStore*, void*, long, ulong, long*); char *logfsformat(LogfsLowLevel*, long, long, long, int); char *logfsbootopen(LogfsLowLevel*, long, long, int, int, LogfsBoot**); void logfsbootfree(LogfsBoot*); char *logfsbootread(LogfsBoot*, void*, long, ulong); char *logfsbootwrite(LogfsBoot*, void*, long, ulong); char *logfsbootio(LogfsBoot*, void*, long, ulong, int); char *logfsbootmap(LogfsBoot*, ulong, ulong*, int*, int*, int*, ulong*, ulong*); long logfsbootgetiosize(LogfsBoot*); long logfsbootgetsize(LogfsBoot*); void logfsboottrace(LogfsBoot*, int); char *logfsserverattach(LogfsServer*, u32, char*, Qid*); char *logfsserverclunk(LogfsServer*, u32); char *logfsservercreate(LogfsServer*, u32, char*, u32, uchar, Qid*); char *logfsserverflush(LogfsServer*); char *logfsservernew(LogfsBoot*, LogfsLowLevel*, LogfsIdentityStore*, ulong, int, LogfsServer**); char *logfsserveropen(LogfsServer*, u32, uchar mode, Qid*); char *logfsserverread(LogfsServer*, u32, u32, u32, uchar*, u32, u32*); char *logfsserverremove(LogfsServer*, u32); char *logfsserverstat(LogfsServer*, u32, uchar*, u32, ushort*); char *logfsserverwalk(LogfsServer*, u32, u32, ushort, char **, ushort*, Qid*); char *logfsserverwrite(LogfsServer*, u32, u32, u32, uchar*, u32*); char *logfsserverwstat(LogfsServer*, u32, uchar*, ushort nstat); void logfsserverfree(LogfsServer **); char *logfsserverlogsweep(LogfsServer*, int, int*); char *logfsserverreadpathextent(LogfsServer*, u32, int, u32*, u32*, long*, int*, int*); char *logfsservertestcmd(LogfsServer*, int, char **); void logfsservertrace(LogfsServer*, int); /* * implemented by the environment */ ulong logfsnow(void); void *logfsrealloc(void*, ulong); void logfsfreemem(void*); int nrand(int); extern char Eio[]; extern char Ebadarg[]; extern char Eperm[];