1 f7012583 2003-11-25 devnull #ifndef _VENTI_H_
2 f7012583 2003-11-25 devnull #define _VENTI_H_ 1
3 819822c9 2004-06-16 devnull #ifdef __cplusplus
4 f7012583 2003-11-25 devnull extern "C" {
7 1a0954ab 2005-01-04 devnull AUTOLIB(venti)
9 97a5e5f2 2003-11-23 devnull /* XXX should be own library? */
11 97a5e5f2 2003-11-23 devnull * Packets
15 97a5e5f2 2003-11-23 devnull MaxFragSize = 9*1024,
18 97a5e5f2 2003-11-23 devnull typedef struct Packet Packet;
19 97a5e5f2 2003-11-23 devnull Packet *packetalloc(void);
20 97a5e5f2 2003-11-23 devnull void packetfree(Packet*);
21 97a5e5f2 2003-11-23 devnull Packet *packetforeign(uchar *buf, int n, void (*free)(void *a), void *a);
22 97a5e5f2 2003-11-23 devnull Packet *packetdup(Packet*, int offset, int n);
23 97a5e5f2 2003-11-23 devnull Packet *packetsplit(Packet*, int n);
24 97a5e5f2 2003-11-23 devnull int packetconsume(Packet*, uchar *buf, int n);
25 97a5e5f2 2003-11-23 devnull int packettrim(Packet*, int offset, int n);
26 97a5e5f2 2003-11-23 devnull uchar *packetheader(Packet*, int n);
27 97a5e5f2 2003-11-23 devnull uchar *packettrailer(Packet*, int n);
28 d23a617a 2004-03-15 devnull void packetprefix(Packet*, uchar *buf, int n);
29 d23a617a 2004-03-15 devnull void packetappend(Packet*, uchar *buf, int n);
30 d23a617a 2004-03-15 devnull void packetconcat(Packet*, Packet*);
31 97a5e5f2 2003-11-23 devnull uchar *packetpeek(Packet*, uchar *buf, int offset, int n);
32 97a5e5f2 2003-11-23 devnull int packetcopy(Packet*, uchar *buf, int offset, int n);
33 97a5e5f2 2003-11-23 devnull int packetfragments(Packet*, IOchunk*, int nio, int offset);
34 97a5e5f2 2003-11-23 devnull uint packetsize(Packet*);
35 97a5e5f2 2003-11-23 devnull uint packetasize(Packet*);
36 97a5e5f2 2003-11-23 devnull int packetcompact(Packet*);
37 97a5e5f2 2003-11-23 devnull int packetcmp(Packet*, Packet*);
38 97a5e5f2 2003-11-23 devnull void packetstats(void);
39 97a5e5f2 2003-11-23 devnull void packetsha1(Packet*, uchar sha1[20]);
41 97a5e5f2 2003-11-23 devnull /* XXX begin actual venti.h */
43 819822c9 2004-06-16 devnull #ifndef PLAN9PORT
44 819822c9 2004-06-16 devnull #pragma lib "libventi.a"
45 819822c9 2004-06-16 devnull #pragma src "/sys/src/libventi"
48 97a5e5f2 2003-11-23 devnull typedef struct VtFcall VtFcall;
49 97a5e5f2 2003-11-23 devnull typedef struct VtConn VtConn;
50 97a5e5f2 2003-11-23 devnull typedef struct VtEntry VtEntry;
51 97a5e5f2 2003-11-23 devnull typedef struct VtRoot VtRoot;
54 97a5e5f2 2003-11-23 devnull * Fundamental constants.
58 97a5e5f2 2003-11-23 devnull VtScoreSize = 20,
59 97a5e5f2 2003-11-23 devnull VtMaxStringSize = 1024,
60 97a5e5f2 2003-11-23 devnull VtMaxLumpSize = 56*1024,
61 97a5e5f2 2003-11-23 devnull VtPointerDepth = 7,
63 2db9e482 2003-11-24 devnull #define VtMaxFileSize ((1ULL<<48)-1)
67 97a5e5f2 2003-11-23 devnull * Strings in packets.
69 97a5e5f2 2003-11-23 devnull int vtputstring(Packet*, char*);
70 97a5e5f2 2003-11-23 devnull int vtgetstring(Packet*, char**);
73 97a5e5f2 2003-11-23 devnull * Block types.
75 97a5e5f2 2003-11-23 devnull * The initial Venti protocol had a much
76 97a5e5f2 2003-11-23 devnull * less regular list of block types.
77 97a5e5f2 2003-11-23 devnull * VtToDiskType converts from new to old.
81 97a5e5f2 2003-11-23 devnull VtDataType = 0<<3,
82 97a5e5f2 2003-11-23 devnull /* VtDataType+1, ... */
83 97a5e5f2 2003-11-23 devnull VtDirType = 1<<3,
84 97a5e5f2 2003-11-23 devnull /* VtDirType+1, ... */
85 97a5e5f2 2003-11-23 devnull VtRootType = 2<<3,
86 97a5e5f2 2003-11-23 devnull VtMaxType,
87 d3232caf 2004-06-14 devnull VtCorruptType = 0xFF,
89 97a5e5f2 2003-11-23 devnull VtTypeDepthMask = 7,
90 d23a617a 2004-03-15 devnull VtTypeBaseMask = ~VtTypeDepthMask,
93 97a5e5f2 2003-11-23 devnull /* convert to/from on-disk type numbers */
94 97a5e5f2 2003-11-23 devnull uint vttodisktype(uint);
95 97a5e5f2 2003-11-23 devnull uint vtfromdisktype(uint);
98 97a5e5f2 2003-11-23 devnull * VtEntry describes a Venti stream
100 eacbfb24 2004-03-15 devnull * The _ enums are only used on the wire.
101 eacbfb24 2004-03-15 devnull * They are not present in the VtEntry structure
102 eacbfb24 2004-03-15 devnull * and should not be used by client programs.
103 eacbfb24 2004-03-15 devnull * (The info is in the type field.)
107 97a5e5f2 2003-11-23 devnull VtEntryActive = 1<<0, /* entry is in use */
108 d23a617a 2004-03-15 devnull _VtEntryDir = 1<<1, /* a directory */
109 d23a617a 2004-03-15 devnull _VtEntryDepthShift = 2, /* shift for pointer depth */
110 d23a617a 2004-03-15 devnull _VtEntryDepthMask = 7<<2, /* mask for pointer depth */
111 97a5e5f2 2003-11-23 devnull VtEntryLocal = 1<<5, /* for local storage only */
115 97a5e5f2 2003-11-23 devnull VtEntrySize = 40,
117 97a5e5f2 2003-11-23 devnull struct VtEntry
119 97a5e5f2 2003-11-23 devnull ulong gen; /* generation number */
120 97a5e5f2 2003-11-23 devnull ushort psize; /* pointer block size */
121 97a5e5f2 2003-11-23 devnull ushort dsize; /* data block size */
122 97a5e5f2 2003-11-23 devnull uchar type;
123 97a5e5f2 2003-11-23 devnull uchar flags;
124 97a5e5f2 2003-11-23 devnull uvlong size;
125 97a5e5f2 2003-11-23 devnull uchar score[VtScoreSize];
128 97a5e5f2 2003-11-23 devnull void vtentrypack(VtEntry*, uchar*, int index);
129 97a5e5f2 2003-11-23 devnull int vtentryunpack(VtEntry*, uchar*, int index);
131 97a5e5f2 2003-11-23 devnull struct VtRoot
133 97a5e5f2 2003-11-23 devnull char name[128];
134 97a5e5f2 2003-11-23 devnull char type[128];
135 97a5e5f2 2003-11-23 devnull uchar score[VtScoreSize]; /* to a Dir block */
136 97a5e5f2 2003-11-23 devnull ushort blocksize; /* maximum block size */
137 97a5e5f2 2003-11-23 devnull uchar prev[VtScoreSize]; /* last root block */
142 97a5e5f2 2003-11-23 devnull VtRootSize = 300,
143 97a5e5f2 2003-11-23 devnull VtRootVersion = 2,
146 97a5e5f2 2003-11-23 devnull void vtrootpack(VtRoot*, uchar*);
147 97a5e5f2 2003-11-23 devnull int vtrootunpack(VtRoot*, uchar*);
150 97a5e5f2 2003-11-23 devnull * score of zero length block
152 97a5e5f2 2003-11-23 devnull extern uchar vtzeroscore[VtScoreSize];
155 97a5e5f2 2003-11-23 devnull * zero extend and truncate blocks
157 97a5e5f2 2003-11-23 devnull void vtzeroextend(int type, uchar *buf, uint n, uint nn);
158 97a5e5f2 2003-11-23 devnull uint vtzerotruncate(int type, uchar *buf, uint n);
161 97a5e5f2 2003-11-23 devnull * parse score: mungs s
163 d23a617a 2004-03-15 devnull int vtparsescore(char *s, char **prefix, uchar[VtScoreSize]);
166 97a5e5f2 2003-11-23 devnull * formatting
167 97a5e5f2 2003-11-23 devnull * other than noted, these formats all ignore
168 97a5e5f2 2003-11-23 devnull * the width and precision arguments, and all flags
170 97a5e5f2 2003-11-23 devnull * V a venti score
172 819822c9 2004-06-16 devnull #ifndef PLAN9PORT
173 819822c9 2004-06-16 devnull #pragma varargck type "V" uchar*
174 819822c9 2004-06-16 devnull #pragma varargck type "F" VtFcall*
177 97a5e5f2 2003-11-23 devnull int vtscorefmt(Fmt*);
180 97a5e5f2 2003-11-23 devnull * error-checking malloc et al.
182 97a5e5f2 2003-11-23 devnull void vtfree(void *);
183 97a5e5f2 2003-11-23 devnull void *vtmalloc(int);
184 97a5e5f2 2003-11-23 devnull void *vtmallocz(int);
185 97a5e5f2 2003-11-23 devnull void *vtrealloc(void *p, int);
186 97a5e5f2 2003-11-23 devnull void *vtbrk(int n);
187 97a5e5f2 2003-11-23 devnull char *vtstrdup(char *);
190 97a5e5f2 2003-11-23 devnull * Venti protocol
194 97a5e5f2 2003-11-23 devnull * Crypto strengths
198 97a5e5f2 2003-11-23 devnull VtCryptoStrengthNone,
199 97a5e5f2 2003-11-23 devnull VtCryptoStrengthAuth,
200 97a5e5f2 2003-11-23 devnull VtCryptoStrengthWeak,
201 97a5e5f2 2003-11-23 devnull VtCryptoStrengthStrong,
205 97a5e5f2 2003-11-23 devnull * Crypto suites
209 97a5e5f2 2003-11-23 devnull VtCryptoNone,
210 97a5e5f2 2003-11-23 devnull VtCryptoSSL3,
211 97a5e5f2 2003-11-23 devnull VtCryptoTLS1,
212 97a5e5f2 2003-11-23 devnull VtCryptoMax,
216 97a5e5f2 2003-11-23 devnull * Codecs
220 97a5e5f2 2003-11-23 devnull VtCodecNone,
221 97a5e5f2 2003-11-23 devnull VtCodecDeflate,
222 97a5e5f2 2003-11-23 devnull VtCodecThwack,
223 97a5e5f2 2003-11-23 devnull VtCodecMax
228 97a5e5f2 2003-11-23 devnull VtRerror = 1,
229 97a5e5f2 2003-11-23 devnull VtTping = 2,
230 97a5e5f2 2003-11-23 devnull VtRping,
231 97a5e5f2 2003-11-23 devnull VtThello = 4,
232 97a5e5f2 2003-11-23 devnull VtRhello,
233 97a5e5f2 2003-11-23 devnull VtTgoodbye = 6,
234 97a5e5f2 2003-11-23 devnull VtRgoodbye, /* not used */
235 97a5e5f2 2003-11-23 devnull VtTauth0 = 8,
236 97a5e5f2 2003-11-23 devnull VtRauth0,
237 97a5e5f2 2003-11-23 devnull VtTauth1 = 10,
238 97a5e5f2 2003-11-23 devnull VtRauth1,
239 97a5e5f2 2003-11-23 devnull VtTread = 12,
240 97a5e5f2 2003-11-23 devnull VtRread,
241 97a5e5f2 2003-11-23 devnull VtTwrite = 14,
242 97a5e5f2 2003-11-23 devnull VtRwrite,
243 97a5e5f2 2003-11-23 devnull VtTsync = 16,
244 97a5e5f2 2003-11-23 devnull VtRsync,
249 97a5e5f2 2003-11-23 devnull struct VtFcall
251 97a5e5f2 2003-11-23 devnull uchar type;
252 97a5e5f2 2003-11-23 devnull uchar tag;
254 97a5e5f2 2003-11-23 devnull char *error; /* Rerror */
256 97a5e5f2 2003-11-23 devnull char *version; /* Thello */
257 97a5e5f2 2003-11-23 devnull char *uid; /* Thello */
258 97a5e5f2 2003-11-23 devnull uchar strength; /* Thello */
259 97a5e5f2 2003-11-23 devnull uchar *crypto; /* Thello */
260 97a5e5f2 2003-11-23 devnull uint ncrypto; /* Thello */
261 97a5e5f2 2003-11-23 devnull uchar *codec; /* Thello */
262 97a5e5f2 2003-11-23 devnull uint ncodec; /* Thello */
263 97a5e5f2 2003-11-23 devnull char *sid; /* Rhello */
264 97a5e5f2 2003-11-23 devnull uchar rcrypto; /* Rhello */
265 97a5e5f2 2003-11-23 devnull uchar rcodec; /* Rhello */
266 97a5e5f2 2003-11-23 devnull uchar *auth; /* TauthX, RauthX */
267 97a5e5f2 2003-11-23 devnull uint nauth; /* TauthX, RauthX */
268 97a5e5f2 2003-11-23 devnull uchar score[VtScoreSize]; /* Tread, Rwrite */
269 97a5e5f2 2003-11-23 devnull uchar dtype; /* Tread, Twrite */
270 97a5e5f2 2003-11-23 devnull ushort count; /* Tread */
271 97a5e5f2 2003-11-23 devnull Packet *data; /* Rread, Twrite */
274 97a5e5f2 2003-11-23 devnull Packet *vtfcallpack(VtFcall*);
275 97a5e5f2 2003-11-23 devnull int vtfcallunpack(VtFcall*, Packet*);
276 97a5e5f2 2003-11-23 devnull void vtfcallclear(VtFcall*);
277 97a5e5f2 2003-11-23 devnull int vtfcallfmt(Fmt*);
281 97a5e5f2 2003-11-23 devnull VtStateAlloc,
282 97a5e5f2 2003-11-23 devnull VtStateConnected,
283 97a5e5f2 2003-11-23 devnull VtStateClosed,
286 97a5e5f2 2003-11-23 devnull struct VtConn
288 97a5e5f2 2003-11-23 devnull QLock lk;
289 97a5e5f2 2003-11-23 devnull QLock inlk;
290 97a5e5f2 2003-11-23 devnull QLock outlk;
291 97a5e5f2 2003-11-23 devnull int debug;
292 97a5e5f2 2003-11-23 devnull int infd;
293 97a5e5f2 2003-11-23 devnull int outfd;
294 97a5e5f2 2003-11-23 devnull int muxer;
295 97a5e5f2 2003-11-23 devnull void *writeq;
296 97a5e5f2 2003-11-23 devnull void *readq;
297 97a5e5f2 2003-11-23 devnull int state;
298 97a5e5f2 2003-11-23 devnull void *wait[256];
299 97a5e5f2 2003-11-23 devnull uint ntag;
300 97a5e5f2 2003-11-23 devnull uint nsleep;
301 97a5e5f2 2003-11-23 devnull Packet *part;
302 97a5e5f2 2003-11-23 devnull Rendez tagrend;
303 97a5e5f2 2003-11-23 devnull Rendez rpcfork;
304 97a5e5f2 2003-11-23 devnull char *version;
305 97a5e5f2 2003-11-23 devnull char *uid;
306 97a5e5f2 2003-11-23 devnull char *sid;
309 97a5e5f2 2003-11-23 devnull VtConn *vtconn(int infd, int outfd);
310 97a5e5f2 2003-11-23 devnull VtConn *vtdial(char*);
311 97a5e5f2 2003-11-23 devnull void vtfreeconn(VtConn*);
312 97a5e5f2 2003-11-23 devnull int vtsend(VtConn*, Packet*);
313 97a5e5f2 2003-11-23 devnull Packet *vtrecv(VtConn*);
314 97a5e5f2 2003-11-23 devnull int vtversion(VtConn *z);
315 97a5e5f2 2003-11-23 devnull void vtdebug(VtConn *z, char*, ...);
316 97a5e5f2 2003-11-23 devnull void vthangup(VtConn *z);
317 97a5e5f2 2003-11-23 devnull /* #pragma varargck argpos vtdebug 2 */
319 97a5e5f2 2003-11-23 devnull /* server */
320 97a5e5f2 2003-11-23 devnull typedef struct VtSrv VtSrv;
321 97a5e5f2 2003-11-23 devnull typedef struct VtReq VtReq;
322 97a5e5f2 2003-11-23 devnull struct VtReq
324 97a5e5f2 2003-11-23 devnull VtFcall tx;
325 97a5e5f2 2003-11-23 devnull VtFcall rx;
326 97a5e5f2 2003-11-23 devnull /* private */
327 97a5e5f2 2003-11-23 devnull VtSrv *srv;
328 97a5e5f2 2003-11-23 devnull void *sc;
331 97a5e5f2 2003-11-23 devnull int vtsrvhello(VtConn*);
332 97a5e5f2 2003-11-23 devnull VtSrv *vtlisten(char *addr);
333 97a5e5f2 2003-11-23 devnull VtReq *vtgetreq(VtSrv*);
334 97a5e5f2 2003-11-23 devnull void vtrespond(VtReq*);
336 97a5e5f2 2003-11-23 devnull /* client */
337 97a5e5f2 2003-11-23 devnull Packet *vtrpc(VtConn*, Packet*);
338 97a5e5f2 2003-11-23 devnull void vtrecvproc(void*); /* VtConn* */
339 97a5e5f2 2003-11-23 devnull void vtsendproc(void*); /* VtConn* */
341 97a5e5f2 2003-11-23 devnull int vtconnect(VtConn*);
342 97a5e5f2 2003-11-23 devnull int vthello(VtConn*);
343 97a5e5f2 2003-11-23 devnull int vtread(VtConn*, uchar score[VtScoreSize], uint type, uchar *buf, int n);
344 97a5e5f2 2003-11-23 devnull int vtwrite(VtConn*, uchar score[VtScoreSize], uint type, uchar *buf, int n);
345 97a5e5f2 2003-11-23 devnull Packet *vtreadpacket(VtConn*, uchar score[VtScoreSize], uint type, int n);
346 97a5e5f2 2003-11-23 devnull int vtwritepacket(VtConn*, uchar score[VtScoreSize], uint type, Packet *p);
347 97a5e5f2 2003-11-23 devnull int vtsync(VtConn*);
348 97a5e5f2 2003-11-23 devnull int vtping(VtConn*);
351 97a5e5f2 2003-11-23 devnull * Data blocks and block cache.
355 97a5e5f2 2003-11-23 devnull NilBlock = ~0,
358 97a5e5f2 2003-11-23 devnull typedef struct VtBlock VtBlock;
359 97a5e5f2 2003-11-23 devnull typedef struct VtCache VtCache;
361 97a5e5f2 2003-11-23 devnull struct VtBlock
363 97a5e5f2 2003-11-23 devnull VtCache *c;
364 97a5e5f2 2003-11-23 devnull QLock lk;
366 97a5e5f2 2003-11-23 devnull uchar *data;
367 97a5e5f2 2003-11-23 devnull uchar score[VtScoreSize];
368 97a5e5f2 2003-11-23 devnull uchar type; /* BtXXX */
370 97a5e5f2 2003-11-23 devnull /* internal to cache */
371 97a5e5f2 2003-11-23 devnull int nlock;
372 97a5e5f2 2003-11-23 devnull int iostate;
373 97a5e5f2 2003-11-23 devnull int ref;
374 97a5e5f2 2003-11-23 devnull u32int heap;
375 97a5e5f2 2003-11-23 devnull VtBlock *next;
376 97a5e5f2 2003-11-23 devnull VtBlock **prev;
377 97a5e5f2 2003-11-23 devnull u32int used;
378 97a5e5f2 2003-11-23 devnull u32int used2;
379 97a5e5f2 2003-11-23 devnull u32int addr;
381 97a5e5f2 2003-11-23 devnull /* internal to efile (HACK) */
382 97a5e5f2 2003-11-23 devnull int decrypted;
385 97a5e5f2 2003-11-23 devnull u32int vtglobaltolocal(uchar[VtScoreSize]);
386 97a5e5f2 2003-11-23 devnull void vtlocaltoglobal(u32int, uchar[VtScoreSize]);
388 97a5e5f2 2003-11-23 devnull VtCache *vtcachealloc(VtConn*, int blocksize, ulong nblocks, int mode);
389 97a5e5f2 2003-11-23 devnull void vtcachefree(VtCache*);
390 97a5e5f2 2003-11-23 devnull VtBlock *vtcachelocal(VtCache*, u32int addr, int type);
391 97a5e5f2 2003-11-23 devnull VtBlock *vtcacheglobal(VtCache*, uchar[VtScoreSize], int type);
392 97a5e5f2 2003-11-23 devnull VtBlock *vtcacheallocblock(VtCache*, int type);
393 b98ae9bf 2004-06-17 devnull void vtcachesetwrite(VtCache*, int(*)(VtConn*,uchar[VtScoreSize],uint,uchar*,int));
394 97a5e5f2 2003-11-23 devnull void vtblockput(VtBlock*);
395 97a5e5f2 2003-11-23 devnull u32int vtcacheblocksize(VtCache*);
396 97a5e5f2 2003-11-23 devnull int vtblockwrite(VtBlock*);
397 97a5e5f2 2003-11-23 devnull VtBlock *vtblockcopy(VtBlock*);
398 97a5e5f2 2003-11-23 devnull void vtblockduplock(VtBlock*);
399 d23a617a 2004-03-15 devnull int vtblockdirty(VtBlock*);
402 97a5e5f2 2003-11-23 devnull * Hash tree file tree.
404 97a5e5f2 2003-11-23 devnull typedef struct VtFile VtFile;
405 d23a617a 2004-03-15 devnull struct VtFile
407 d23a617a 2004-03-15 devnull QLock lk;
408 d23a617a 2004-03-15 devnull int ref;
409 d23a617a 2004-03-15 devnull int local;
410 d23a617a 2004-03-15 devnull VtBlock *b; /* block containing this file */
411 d23a617a 2004-03-15 devnull uchar score[VtScoreSize]; /* score of block containing this file */
413 d23a617a 2004-03-15 devnull /* immutable */
414 d23a617a 2004-03-15 devnull VtCache *c;
415 d23a617a 2004-03-15 devnull int mode;
416 d23a617a 2004-03-15 devnull u32int gen;
417 d23a617a 2004-03-15 devnull int dsize;
418 d23a617a 2004-03-15 devnull int dir;
419 d23a617a 2004-03-15 devnull VtFile *parent;
420 d23a617a 2004-03-15 devnull int epb; /* entries per block in parent */
421 d23a617a 2004-03-15 devnull u32int offset; /* entry offset in parent */
426 97a5e5f2 2003-11-23 devnull VtOREAD,
427 97a5e5f2 2003-11-23 devnull VtOWRITE,
428 97a5e5f2 2003-11-23 devnull VtORDWR,
429 97a5e5f2 2003-11-23 devnull VtOCREATE = 0x100,
432 97a5e5f2 2003-11-23 devnull VtFile *vtfileopenroot(VtCache*, VtEntry*);
433 97a5e5f2 2003-11-23 devnull VtFile *vtfilecreateroot(VtCache*, int psize, int dsize, int type);
434 97a5e5f2 2003-11-23 devnull VtFile *vtfileopen(VtFile*, u32int, int);
435 97a5e5f2 2003-11-23 devnull VtFile *vtfilecreate(VtFile*, int psize, int dsize, int dir);
436 97a5e5f2 2003-11-23 devnull VtBlock *vtfileblock(VtFile*, u32int, int mode);
437 97a5e5f2 2003-11-23 devnull long vtfileread(VtFile*, void*, long, vlong);
438 97a5e5f2 2003-11-23 devnull long vtfilewrite(VtFile*, void*, long, vlong);
439 97a5e5f2 2003-11-23 devnull int vtfileflush(VtFile*);
440 97a5e5f2 2003-11-23 devnull void vtfileincref(VtFile*);
441 97a5e5f2 2003-11-23 devnull void vtfileclose(VtFile*);
442 97a5e5f2 2003-11-23 devnull int vtfilegetentry(VtFile*, VtEntry*);
443 d23a617a 2004-03-15 devnull int vtfilesetentry(VtFile*, VtEntry*);
444 97a5e5f2 2003-11-23 devnull int vtfileblockscore(VtFile*, u32int, uchar[VtScoreSize]);
445 97a5e5f2 2003-11-23 devnull u32int vtfilegetdirsize(VtFile*);
446 97a5e5f2 2003-11-23 devnull int vtfilesetdirsize(VtFile*, u32int);
447 97a5e5f2 2003-11-23 devnull void vtfileunlock(VtFile*);
448 97a5e5f2 2003-11-23 devnull int vtfilelock(VtFile*, int);
449 97a5e5f2 2003-11-23 devnull int vtfilelock2(VtFile*, VtFile*, int);
450 97a5e5f2 2003-11-23 devnull int vtfileflushbefore(VtFile*, u64int);
451 d23a617a 2004-03-15 devnull int vtfiletruncate(VtFile*);
452 d23a617a 2004-03-15 devnull uvlong vtfilegetsize(VtFile*);
453 d23a617a 2004-03-15 devnull int vtfilesetsize(VtFile*, uvlong);
454 d23a617a 2004-03-15 devnull int vtfileremove(VtFile*);
456 a09e80f9 2004-05-23 devnull extern int chattyventi;
457 a09e80f9 2004-05-23 devnull extern int ventidoublechecksha1;
459 819822c9 2004-06-16 devnull #ifdef __cplusplus
