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| author | Russ Cox <rsc@swtch.com> | 2009-05-25 02:11:27 -0700 |
|---|---|---|
| committer | Russ Cox <rsc@swtch.com> | 2009-05-25 02:11:27 -0700 |
| commit | 75d048884cfcb7cc4404b384da50923e22224365 (patch) | |
| tree | b918a6a957b1f322ebb2f84c16092e103f91acda /include/venti.h | |
| parent | 33b446b8bbfea80552d462296d27ad4114fbd3fb (diff) | |
| download | plan9port-75d048884cfcb7cc4404b384da50923e22224365.tar.gz plan9port-75d048884cfcb7cc4404b384da50923e22224365.tar.bz2 plan9port-75d048884cfcb7cc4404b384da50923e22224365.zip | |
venti: 32-bit extensions to data structures
Diffstat (limited to 'include/venti.h')
| -rw-r--r-- | include/venti.h | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/include/venti.h b/include/venti.h index 14627dcb..3365182f 100644 --- a/include/venti.h +++ b/include/venti.h @@ -86,7 +86,6 @@ enum { VtScoreSize = 20, VtMaxStringSize = 1024, - VtMaxLumpSize = 56*1024, VtPointerDepth = 7 }; #define VtMaxFileSize ((1ULL<<48)-1) @@ -137,7 +136,8 @@ enum _VtEntryDir = 1<<1, /* a directory */ _VtEntryDepthShift = 2, /* shift for pointer depth */ _VtEntryDepthMask = 7<<2, /* mask for pointer depth */ - VtEntryLocal = 1<<5 /* for local storage only */ + VtEntryLocal = 1<<5, /* for local storage only */ + _VtEntryBig = 1<<6, }; enum { @@ -146,8 +146,8 @@ enum struct VtEntry { ulong gen; /* generation number */ - ushort psize; /* pointer block size */ - ushort dsize; /* data block size */ + ulong psize; /* pointer block size */ + ulong dsize; /* data block size */ uchar type; uchar flags; uvlong size; @@ -162,14 +162,15 @@ struct VtRoot char name[128]; char type[128]; uchar score[VtScoreSize]; /* to a Dir block */ - ushort blocksize; /* maximum block size */ + ulong blocksize; /* maximum block size */ uchar prev[VtScoreSize]; /* last root block */ }; enum { VtRootSize = 300, - VtRootVersion = 2 + VtRootVersion = 2, + _VtRootVersionBig = 1<<15, }; void vtrootpack(VtRoot*, uchar*); @@ -394,7 +395,8 @@ struct VtBlock uchar *data; uchar score[VtScoreSize]; - uchar type; /* BtXXX */ + uchar type; /* VtXXX */ + ulong size; /* internal to cache */ int nlock; @@ -412,14 +414,13 @@ struct VtBlock u32int vtglobaltolocal(uchar[VtScoreSize]); void vtlocaltoglobal(u32int, uchar[VtScoreSize]); -VtCache *vtcachealloc(VtConn*, int blocksize, ulong nblocks); +VtCache *vtcachealloc(VtConn*, ulong maxmem); void vtcachefree(VtCache*); VtBlock *vtcachelocal(VtCache*, u32int addr, int type); -VtBlock *vtcacheglobal(VtCache*, uchar[VtScoreSize], int type); -VtBlock *vtcacheallocblock(VtCache*, int type); +VtBlock *vtcacheglobal(VtCache*, uchar[VtScoreSize], int type, ulong size); +VtBlock *vtcacheallocblock(VtCache*, int type, ulong size); void vtcachesetwrite(VtCache*, int(*)(VtConn*,uchar[VtScoreSize],uint,uchar*,int)); void vtblockput(VtBlock*); -u32int vtcacheblocksize(VtCache*); int vtblockwrite(VtBlock*); VtBlock *vtblockcopy(VtBlock*); void vtblockduplock(VtBlock*); @@ -438,6 +439,7 @@ struct VtFile int local; VtBlock *b; /* block containing this file */ uchar score[VtScoreSize]; /* score of block containing this file */ + int bsize; /* size of block */ /* immutable */ VtCache *c; |