tfsys.c - plan9port - [fork] Plan 9 from user space
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       tfsys.c (2224B)
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            1 #include <u.h>
            2 #include <libc.h>
            3 #include <thread.h>
            4 #include <sunrpc.h>
            5 #include <nfs3.h>
            6 #include <diskfs.h>
            7 
            8 int allowall;
            9 
           10 static Fsys *(*opentab[])(Disk*) =
           11 {
           12         fsysopenffs,
           13         fsysopenhfs,
           14         fsysopenkfs,
           15         fsysopenext2,
           16         fsysopenfat,
           17 };
           18 
           19 Fsys*
           20 fsysopen(Disk *disk)
           21 {
           22         int i;
           23         Fsys *fsys;
           24 
           25         for(i=0; i<nelem(opentab); i++)
           26                 if((fsys = (*opentab[i])(disk)) != nil)
           27                         return fsys;
           28         return nil;
           29 }
           30 
           31 Block*
           32 fsysreadblock(Fsys *fsys, u64int blockno)
           33 {
           34         if(!fsys->_readblock){
           35                 werrstr("no read dispatch function");
           36                 return nil;
           37         }
           38         return (*fsys->_readblock)(fsys, blockno);
           39 }
           40 
           41 int
           42 fsyssync(Fsys *fsys)
           43 {
           44         if(disksync(fsys->disk) < 0)
           45                 return -1;
           46         if(!fsys->_sync)
           47                 return 0;
           48         return (*fsys->_sync)(fsys);
           49 }
           50 
           51 void
           52 fsysclose(Fsys *fsys)
           53 {
           54         if(!fsys->_close){
           55                 fprint(2, "no fsysClose\n");
           56                 abort();
           57         }
           58         (*fsys->_close)(fsys);
           59 }
           60 
           61 Nfs3Status
           62 fsysroot(Fsys *fsys, Nfs3Handle *h)
           63 {
           64         if(!fsys->_root)
           65                 return Nfs3ErrNxio;
           66         return (*fsys->_root)(fsys, h);
           67 }
           68 
           69 Nfs3Status
           70 fsyslookup(Fsys *fsys, SunAuthUnix *au, Nfs3Handle *h, char *name, Nfs3Handle *nh)
           71 {
           72         if(!fsys->_lookup)
           73                 return Nfs3ErrNxio;
           74         return (*fsys->_lookup)(fsys, au, h, name, nh);
           75 }
           76 
           77 Nfs3Status
           78 fsysgetattr(Fsys *fsys, SunAuthUnix *au, Nfs3Handle *h, Nfs3Attr *attr)
           79 {
           80         if(!fsys->_getattr)
           81                 return Nfs3ErrNxio;
           82         return (*fsys->_getattr)(fsys, au, h, attr);
           83 }
           84 
           85 Nfs3Status
           86 fsysreaddir(Fsys *fsys, SunAuthUnix *au, Nfs3Handle *h, u32int count, u64int cookie, uchar **e, u32int *ne, u1int *peof)
           87 {
           88         if(!fsys->_readdir)
           89                 return Nfs3ErrNxio;
           90         return (*fsys->_readdir)(fsys, au, h, count, cookie, e, ne, peof);
           91 }
           92 
           93 Nfs3Status
           94 fsysreadfile(Fsys *fsys, SunAuthUnix *au, Nfs3Handle *h, u32int count, u64int offset, uchar **data, u32int *pcount, uchar *peof)
           95 {
           96         if(!fsys->_readfile)
           97                 return Nfs3ErrNxio;
           98         return (*fsys->_readfile)(fsys, au, h, count, offset, data, pcount, peof);
           99 }
          100 
          101 Nfs3Status
          102 fsysreadlink(Fsys *fsys, SunAuthUnix *au, Nfs3Handle *h, char **plink)
          103 {
          104         if(!fsys->_readlink)
          105                 return Nfs3ErrNxio;
          106         return (*fsys->_readlink)(fsys, au, h, plink);
          107 }
          108 
          109 Nfs3Status
          110 fsysaccess(Fsys *fsys, SunAuthUnix *au, Nfs3Handle *h, u32int want, u32int *got, Nfs3Attr *attr)
          111 {
          112         if(!fsys->_access)
          113                 return Nfs3ErrNxio;
          114         return (*fsys->_access)(fsys, au, h, want, got, attr);
          115 }