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" { 
  5 f7012583 2003-11-25 devnull #endif
  6 1a0954ab 2005-01-04 devnull 
  7 6c0209f6 2005-02-11 devnull 
  8 1a0954ab 2005-01-04 devnull AUTOLIB(venti)
  9 1a0954ab 2005-01-04 devnull 
 10 97a5e5f2 2003-11-23 devnull /* XXX should be own library? */
 11 97a5e5f2 2003-11-23 devnull /*
 12 97a5e5f2 2003-11-23 devnull  * Packets
 13 97a5e5f2 2003-11-23 devnull  */
 14 97a5e5f2 2003-11-23 devnull enum
 15 97a5e5f2 2003-11-23 devnull {
 16 cbeb0b26 2006-04-01 devnull 	MaxFragSize = 9*1024
 17 97a5e5f2 2003-11-23 devnull };
 18 97a5e5f2 2003-11-23 devnull 
 19 97a5e5f2 2003-11-23 devnull typedef struct Packet Packet;
 20 97a5e5f2 2003-11-23 devnull 
 21 79793adc 2011-06-13 rsc Packet*	packetalloc(void);
 22 79793adc 2011-06-13 rsc void	packetappend(Packet*, uchar *buf, int n);
 23 79793adc 2011-06-13 rsc uint	packetasize(Packet*);
 24 79793adc 2011-06-13 rsc int	packetcmp(Packet*, Packet*);
 25 79793adc 2011-06-13 rsc int	packetcompact(Packet*);
 26 79793adc 2011-06-13 rsc void	packetconcat(Packet*, Packet*);
 27 79793adc 2011-06-13 rsc int	packetconsume(Packet*, uchar *buf, int n);
 28 79793adc 2011-06-13 rsc int	packetcopy(Packet*, uchar *buf, int offset, int n);
 29 79793adc 2011-06-13 rsc Packet*	packetdup(Packet*, int offset, int n);
 30 79793adc 2011-06-13 rsc Packet*	packetforeign(uchar *buf, int n, void (*free)(void *a), void *a);
 31 79793adc 2011-06-13 rsc int	packetfragments(Packet*, IOchunk*, int nio, int offset);
 32 79793adc 2011-06-13 rsc void	packetfree(Packet*);
 33 79793adc 2011-06-13 rsc uchar*	packetheader(Packet*, int n);
 34 79793adc 2011-06-13 rsc uchar*	packetpeek(Packet*, uchar *buf, int offset, int n);
 35 79793adc 2011-06-13 rsc void	packetprefix(Packet*, uchar *buf, int n);
 36 79793adc 2011-06-13 rsc void	packetsha1(Packet*, uchar sha1[20]);
 37 79793adc 2011-06-13 rsc uint	packetsize(Packet*);
 38 79793adc 2011-06-13 rsc Packet*	packetsplit(Packet*, int n);
 39 79793adc 2011-06-13 rsc void	packetstats(void);
 40 79793adc 2011-06-13 rsc uchar*	packettrailer(Packet*, int n);
 41 79793adc 2011-06-13 rsc int	packettrim(Packet*, int offset, int n);
 42 79793adc 2011-06-13 rsc 
 43 6c0209f6 2005-02-11 devnull /* XXX should be own library? */
 44 6c0209f6 2005-02-11 devnull /*
 45 6c0209f6 2005-02-11 devnull  * Logging
 46 6c0209f6 2005-02-11 devnull  */
 47 6c0209f6 2005-02-11 devnull typedef struct VtLog VtLog;
 48 6c0209f6 2005-02-11 devnull typedef struct VtLogChunk VtLogChunk;
 49 97a5e5f2 2003-11-23 devnull 
 50 6c0209f6 2005-02-11 devnull struct VtLog
 51 6c0209f6 2005-02-11 devnull {
 52 79793adc 2011-06-13 rsc 	VtLog	*next;		/* in hash table */
 53 79793adc 2011-06-13 rsc 	char	*name;
 54 6c0209f6 2005-02-11 devnull 	VtLogChunk *chunk;
 55 79793adc 2011-06-13 rsc 	uint	nchunk;
 56 6c0209f6 2005-02-11 devnull 	VtLogChunk *w;
 57 79793adc 2011-06-13 rsc 	QLock	lk;
 58 79793adc 2011-06-13 rsc 	int	ref;
 59 6c0209f6 2005-02-11 devnull };
 60 6c0209f6 2005-02-11 devnull 
 61 587f8f4d 2005-02-13 devnull struct VtLogChunk
 62 6c0209f6 2005-02-11 devnull {
 63 79793adc 2011-06-13 rsc 	char	*p;
 64 79793adc 2011-06-13 rsc 	char	*ep;
 65 79793adc 2011-06-13 rsc 	char	*wp;
 66 6c0209f6 2005-02-11 devnull };
 67 97a5e5f2 2003-11-23 devnull 
 68 79793adc 2011-06-13 rsc VtLog*	vtlogopen(char *name, uint size);
 69 6c0209f6 2005-02-11 devnull void	vtlogprint(VtLog *log, char *fmt, ...);
 70 6c0209f6 2005-02-11 devnull void	vtlog(char *name, char *fmt, ...);
 71 587f8f4d 2005-02-13 devnull void	vtlogclose(VtLog*);
 72 6c0209f6 2005-02-11 devnull void	vtlogremove(char *name);
 73 79793adc 2011-06-13 rsc char**	vtlognames(int*);
 74 587f8f4d 2005-02-13 devnull void	vtlogdump(int fd, VtLog*);
 75 6c0209f6 2005-02-11 devnull 
 76 6c0209f6 2005-02-11 devnull /* XXX begin actual venti.h */
 77 6c0209f6 2005-02-11 devnull 
 78 97a5e5f2 2003-11-23 devnull typedef struct VtFcall VtFcall;
 79 97a5e5f2 2003-11-23 devnull typedef struct VtConn VtConn;
 80 97a5e5f2 2003-11-23 devnull typedef struct VtEntry VtEntry;
 81 97a5e5f2 2003-11-23 devnull typedef struct VtRoot VtRoot;
 82 97a5e5f2 2003-11-23 devnull 
 83 97a5e5f2 2003-11-23 devnull /*
 84 97a5e5f2 2003-11-23 devnull  * Fundamental constants.
 85 97a5e5f2 2003-11-23 devnull  */
 86 97a5e5f2 2003-11-23 devnull enum
 87 97a5e5f2 2003-11-23 devnull {
 88 79793adc 2011-06-13 rsc 	VtScoreSize	= 20,
 89 97a5e5f2 2003-11-23 devnull 	VtMaxStringSize = 1024,
 90 cbeb0b26 2006-04-01 devnull 	VtPointerDepth	= 7
 91 97a5e5f2 2003-11-23 devnull };
 92 2db9e482 2003-11-24 devnull #define VtMaxFileSize ((1ULL<<48)-1)
 93 97a5e5f2 2003-11-23 devnull 
 94 2db9e482 2003-11-24 devnull 
 95 97a5e5f2 2003-11-23 devnull /* 
 96 97a5e5f2 2003-11-23 devnull  * Strings in packets.
 97 97a5e5f2 2003-11-23 devnull  */
 98 97a5e5f2 2003-11-23 devnull int vtputstring(Packet*, char*);
 99 97a5e5f2 2003-11-23 devnull int vtgetstring(Packet*, char**);
100 97a5e5f2 2003-11-23 devnull 
101 97a5e5f2 2003-11-23 devnull /*
102 97a5e5f2 2003-11-23 devnull  * Block types.
103 97a5e5f2 2003-11-23 devnull  * 
104 97a5e5f2 2003-11-23 devnull  * The initial Venti protocol had a much
105 97a5e5f2 2003-11-23 devnull  * less regular list of block types.
106 97a5e5f2 2003-11-23 devnull  * VtToDiskType converts from new to old.
107 97a5e5f2 2003-11-23 devnull  */
108 97a5e5f2 2003-11-23 devnull enum
109 97a5e5f2 2003-11-23 devnull {
110 97a5e5f2 2003-11-23 devnull 	VtDataType	= 0<<3,
111 97a5e5f2 2003-11-23 devnull 	/* VtDataType+1, ... */
112 97a5e5f2 2003-11-23 devnull 	VtDirType	= 1<<3,
113 97a5e5f2 2003-11-23 devnull 	/* VtDirType+1, ... */
114 97a5e5f2 2003-11-23 devnull 	VtRootType	= 2<<3,
115 97a5e5f2 2003-11-23 devnull 	VtMaxType,
116 d3232caf 2004-06-14 devnull 	VtCorruptType = 0xFF,
117 97a5e5f2 2003-11-23 devnull 
118 97a5e5f2 2003-11-23 devnull 	VtTypeDepthMask = 7,
119 cbeb0b26 2006-04-01 devnull 	VtTypeBaseMask = ~VtTypeDepthMask
120 97a5e5f2 2003-11-23 devnull };
121 97a5e5f2 2003-11-23 devnull 
122 97a5e5f2 2003-11-23 devnull /* convert to/from on-disk type numbers */
123 97a5e5f2 2003-11-23 devnull uint vttodisktype(uint);
124 97a5e5f2 2003-11-23 devnull uint vtfromdisktype(uint);
125 97a5e5f2 2003-11-23 devnull 
126 97a5e5f2 2003-11-23 devnull /*
127 97a5e5f2 2003-11-23 devnull  * VtEntry describes a Venti stream
128 eacbfb24 2004-03-15 devnull  *
129 eacbfb24 2004-03-15 devnull  * The _ enums are only used on the wire.
130 eacbfb24 2004-03-15 devnull  * They are not present in the VtEntry structure
131 eacbfb24 2004-03-15 devnull  * and should not be used by client programs.
132 eacbfb24 2004-03-15 devnull  * (The info is in the type field.)
133 97a5e5f2 2003-11-23 devnull  */
134 97a5e5f2 2003-11-23 devnull enum
135 97a5e5f2 2003-11-23 devnull {
136 97a5e5f2 2003-11-23 devnull 	VtEntryActive = 1<<0,		/* entry is in use */
137 d23a617a 2004-03-15 devnull 	_VtEntryDir = 1<<1,		/* a directory */
138 d23a617a 2004-03-15 devnull 	_VtEntryDepthShift = 2,		/* shift for pointer depth */
139 d23a617a 2004-03-15 devnull 	_VtEntryDepthMask = 7<<2,	/* mask for pointer depth */
140 75d04888 2009-05-25 rsc 	VtEntryLocal = 1<<5,		/* for local storage only */
141 75d04888 2009-05-25 rsc 	_VtEntryBig = 1<<6,
142 97a5e5f2 2003-11-23 devnull };
143 97a5e5f2 2003-11-23 devnull enum
144 97a5e5f2 2003-11-23 devnull {
145 cbeb0b26 2006-04-01 devnull 	VtEntrySize = 40
146 97a5e5f2 2003-11-23 devnull };
147 97a5e5f2 2003-11-23 devnull struct VtEntry
148 97a5e5f2 2003-11-23 devnull {
149 79793adc 2011-06-13 rsc 	ulong	gen;			/* generation number */
150 79793adc 2011-06-13 rsc 	ulong	psize;			/* pointer block size */
151 79793adc 2011-06-13 rsc 	ulong	dsize;			/* data block size */
152 79793adc 2011-06-13 rsc 	uchar	type;
153 79793adc 2011-06-13 rsc 	uchar	flags;
154 79793adc 2011-06-13 rsc 	uvlong	size;
155 79793adc 2011-06-13 rsc 	uchar	score[VtScoreSize];
156 97a5e5f2 2003-11-23 devnull };
157 97a5e5f2 2003-11-23 devnull 
158 97a5e5f2 2003-11-23 devnull void vtentrypack(VtEntry*, uchar*, int index);
159 97a5e5f2 2003-11-23 devnull int vtentryunpack(VtEntry*, uchar*, int index);
160 97a5e5f2 2003-11-23 devnull 
161 97a5e5f2 2003-11-23 devnull struct VtRoot
162 97a5e5f2 2003-11-23 devnull {
163 79793adc 2011-06-13 rsc 	char	name[128];
164 79793adc 2011-06-13 rsc 	char	type[128];
165 79793adc 2011-06-13 rsc 	uchar	score[VtScoreSize];	/* to a Dir block */
166 79793adc 2011-06-13 rsc 	ulong	blocksize;		/* maximum block size */
167 79793adc 2011-06-13 rsc 	uchar	prev[VtScoreSize];	/* last root block */
168 97a5e5f2 2003-11-23 devnull };
169 97a5e5f2 2003-11-23 devnull 
170 97a5e5f2 2003-11-23 devnull enum
171 97a5e5f2 2003-11-23 devnull {
172 97a5e5f2 2003-11-23 devnull 	VtRootSize = 300,
173 75d04888 2009-05-25 rsc 	VtRootVersion = 2,
174 75d04888 2009-05-25 rsc 	_VtRootVersionBig = 1<<15,
175 97a5e5f2 2003-11-23 devnull };
176 97a5e5f2 2003-11-23 devnull 
177 97a5e5f2 2003-11-23 devnull void vtrootpack(VtRoot*, uchar*);
178 97a5e5f2 2003-11-23 devnull int vtrootunpack(VtRoot*, uchar*);
179 97a5e5f2 2003-11-23 devnull 
180 97a5e5f2 2003-11-23 devnull /*
181 97a5e5f2 2003-11-23 devnull  * score of zero length block
182 97a5e5f2 2003-11-23 devnull  */
183 97a5e5f2 2003-11-23 devnull extern uchar vtzeroscore[VtScoreSize];
184 97a5e5f2 2003-11-23 devnull 
185 97a5e5f2 2003-11-23 devnull /*
186 97a5e5f2 2003-11-23 devnull  * zero extend and truncate blocks
187 97a5e5f2 2003-11-23 devnull  */
188 97a5e5f2 2003-11-23 devnull void vtzeroextend(int type, uchar *buf, uint n, uint nn);
189 97a5e5f2 2003-11-23 devnull uint vtzerotruncate(int type, uchar *buf, uint n);
190 97a5e5f2 2003-11-23 devnull 
191 97a5e5f2 2003-11-23 devnull /*
192 97a5e5f2 2003-11-23 devnull  * parse score: mungs s
193 97a5e5f2 2003-11-23 devnull  */
194 d23a617a 2004-03-15 devnull int vtparsescore(char *s, char **prefix, uchar[VtScoreSize]);
195 97a5e5f2 2003-11-23 devnull 
196 97a5e5f2 2003-11-23 devnull /*
197 97a5e5f2 2003-11-23 devnull  * formatting
198 97a5e5f2 2003-11-23 devnull  * other than noted, these formats all ignore
199 97a5e5f2 2003-11-23 devnull  * the width and precision arguments, and all flags
200 97a5e5f2 2003-11-23 devnull  *
201 97a5e5f2 2003-11-23 devnull  * V	a venti score
202 97a5e5f2 2003-11-23 devnull  */
203 97a5e5f2 2003-11-23 devnull 
204 97a5e5f2 2003-11-23 devnull int vtscorefmt(Fmt*);
205 97a5e5f2 2003-11-23 devnull 
206 97a5e5f2 2003-11-23 devnull /*
207 97a5e5f2 2003-11-23 devnull  * error-checking malloc et al.
208 97a5e5f2 2003-11-23 devnull  */
209 79793adc 2011-06-13 rsc void	vtfree(void *);
210 79793adc 2011-06-13 rsc void*	vtmalloc(int);
211 79793adc 2011-06-13 rsc void*	vtmallocz(int);
212 79793adc 2011-06-13 rsc void*	vtrealloc(void *p, int);
213 79793adc 2011-06-13 rsc void*	vtbrk(int n);
214 79793adc 2011-06-13 rsc char*	vtstrdup(char *);
215 97a5e5f2 2003-11-23 devnull 
216 97a5e5f2 2003-11-23 devnull /*
217 97a5e5f2 2003-11-23 devnull  * Venti protocol
218 97a5e5f2 2003-11-23 devnull  */
219 97a5e5f2 2003-11-23 devnull 
220 97a5e5f2 2003-11-23 devnull /*
221 97a5e5f2 2003-11-23 devnull  * Crypto strengths
222 97a5e5f2 2003-11-23 devnull  */
223 97a5e5f2 2003-11-23 devnull enum
224 97a5e5f2 2003-11-23 devnull {
225 97a5e5f2 2003-11-23 devnull 	VtCryptoStrengthNone,
226 97a5e5f2 2003-11-23 devnull 	VtCryptoStrengthAuth,
227 97a5e5f2 2003-11-23 devnull 	VtCryptoStrengthWeak,
228 cbeb0b26 2006-04-01 devnull 	VtCryptoStrengthStrong
229 97a5e5f2 2003-11-23 devnull };
230 97a5e5f2 2003-11-23 devnull 
231 97a5e5f2 2003-11-23 devnull /*
232 97a5e5f2 2003-11-23 devnull  * Crypto suites
233 97a5e5f2 2003-11-23 devnull  */
234 97a5e5f2 2003-11-23 devnull enum
235 97a5e5f2 2003-11-23 devnull {
236 97a5e5f2 2003-11-23 devnull 	VtCryptoNone,
237 97a5e5f2 2003-11-23 devnull 	VtCryptoSSL3,
238 97a5e5f2 2003-11-23 devnull 	VtCryptoTLS1,
239 cbeb0b26 2006-04-01 devnull 	VtCryptoMax
240 97a5e5f2 2003-11-23 devnull };
241 97a5e5f2 2003-11-23 devnull 
242 97a5e5f2 2003-11-23 devnull /* 
243 97a5e5f2 2003-11-23 devnull  * Codecs
244 97a5e5f2 2003-11-23 devnull  */
245 97a5e5f2 2003-11-23 devnull enum
246 97a5e5f2 2003-11-23 devnull {
247 97a5e5f2 2003-11-23 devnull 	VtCodecNone,
248 97a5e5f2 2003-11-23 devnull 	VtCodecDeflate,
249 97a5e5f2 2003-11-23 devnull 	VtCodecThwack,
250 97a5e5f2 2003-11-23 devnull 	VtCodecMax
251 97a5e5f2 2003-11-23 devnull };
252 97a5e5f2 2003-11-23 devnull 
253 97a5e5f2 2003-11-23 devnull enum
254 97a5e5f2 2003-11-23 devnull {
255 97a5e5f2 2003-11-23 devnull 	VtRerror	= 1,
256 97a5e5f2 2003-11-23 devnull 	VtTping		= 2,
257 97a5e5f2 2003-11-23 devnull 	VtRping,
258 97a5e5f2 2003-11-23 devnull 	VtThello	= 4,
259 97a5e5f2 2003-11-23 devnull 	VtRhello,
260 97a5e5f2 2003-11-23 devnull 	VtTgoodbye	= 6,
261 97a5e5f2 2003-11-23 devnull 	VtRgoodbye,	/* not used */
262 97a5e5f2 2003-11-23 devnull 	VtTauth0	= 8,
263 97a5e5f2 2003-11-23 devnull 	VtRauth0,
264 97a5e5f2 2003-11-23 devnull 	VtTauth1	= 10,
265 97a5e5f2 2003-11-23 devnull 	VtRauth1,
266 97a5e5f2 2003-11-23 devnull 	VtTread		= 12,
267 97a5e5f2 2003-11-23 devnull 	VtRread,
268 97a5e5f2 2003-11-23 devnull 	VtTwrite	= 14,
269 97a5e5f2 2003-11-23 devnull 	VtRwrite,
270 97a5e5f2 2003-11-23 devnull 	VtTsync		= 16,
271 97a5e5f2 2003-11-23 devnull 	VtRsync,
272 97a5e5f2 2003-11-23 devnull 
273 97a5e5f2 2003-11-23 devnull 	VtTmax
274 97a5e5f2 2003-11-23 devnull };
275 97a5e5f2 2003-11-23 devnull 
276 97a5e5f2 2003-11-23 devnull struct VtFcall
277 97a5e5f2 2003-11-23 devnull {
278 7e6f40b2 2005-07-13 devnull 	uchar	msgtype;
279 97a5e5f2 2003-11-23 devnull 	uchar	tag;
280 97a5e5f2 2003-11-23 devnull 
281 79793adc 2011-06-13 rsc 	char	*error;		/* Rerror */
282 97a5e5f2 2003-11-23 devnull 
283 97a5e5f2 2003-11-23 devnull 	char	*version;	/* Thello */
284 97a5e5f2 2003-11-23 devnull 	char	*uid;		/* Thello */
285 97a5e5f2 2003-11-23 devnull 	uchar	strength;	/* Thello */
286 97a5e5f2 2003-11-23 devnull 	uchar	*crypto;	/* Thello */
287 97a5e5f2 2003-11-23 devnull 	uint	ncrypto;	/* Thello */
288 97a5e5f2 2003-11-23 devnull 	uchar	*codec;		/* Thello */
289 97a5e5f2 2003-11-23 devnull 	uint	ncodec;		/* Thello */
290 97a5e5f2 2003-11-23 devnull 	char	*sid;		/* Rhello */
291 97a5e5f2 2003-11-23 devnull 	uchar	rcrypto;	/* Rhello */
292 97a5e5f2 2003-11-23 devnull 	uchar	rcodec;		/* Rhello */
293 97a5e5f2 2003-11-23 devnull 	uchar	*auth;		/* TauthX, RauthX */
294 97a5e5f2 2003-11-23 devnull 	uint	nauth;		/* TauthX, RauthX */
295 97a5e5f2 2003-11-23 devnull 	uchar	score[VtScoreSize];	/* Tread, Rwrite */
296 79793adc 2011-06-13 rsc 	uchar	blocktype;	/* Tread, Twrite */
297 33b446b8 2009-05-25 rsc 	uint	count;		/* Tread */
298 97a5e5f2 2003-11-23 devnull 	Packet	*data;		/* Rread, Twrite */
299 97a5e5f2 2003-11-23 devnull };
300 97a5e5f2 2003-11-23 devnull 
301 79793adc 2011-06-13 rsc Packet*	vtfcallpack(VtFcall*);
302 79793adc 2011-06-13 rsc int	vtfcallunpack(VtFcall*, Packet*);
303 79793adc 2011-06-13 rsc void	vtfcallclear(VtFcall*);
304 79793adc 2011-06-13 rsc int	vtfcallfmt(Fmt*);
305 97a5e5f2 2003-11-23 devnull 
306 97a5e5f2 2003-11-23 devnull enum
307 97a5e5f2 2003-11-23 devnull {
308 97a5e5f2 2003-11-23 devnull 	VtStateAlloc,
309 97a5e5f2 2003-11-23 devnull 	VtStateConnected,
310 cbeb0b26 2006-04-01 devnull 	VtStateClosed
311 97a5e5f2 2003-11-23 devnull };
312 97a5e5f2 2003-11-23 devnull 
313 97a5e5f2 2003-11-23 devnull struct VtConn
314 97a5e5f2 2003-11-23 devnull {
315 97a5e5f2 2003-11-23 devnull 	QLock	lk;
316 97a5e5f2 2003-11-23 devnull 	QLock	inlk;
317 97a5e5f2 2003-11-23 devnull 	QLock	outlk;
318 97a5e5f2 2003-11-23 devnull 	int	debug;
319 97a5e5f2 2003-11-23 devnull 	int	infd;
320 97a5e5f2 2003-11-23 devnull 	int	outfd;
321 97a5e5f2 2003-11-23 devnull 	int	muxer;
322 97a5e5f2 2003-11-23 devnull 	void	*writeq;
323 97a5e5f2 2003-11-23 devnull 	void	*readq;
324 97a5e5f2 2003-11-23 devnull 	int	state;
325 79793adc 2011-06-13 rsc 	void	*wait[256];
326 97a5e5f2 2003-11-23 devnull 	uint	ntag;
327 97a5e5f2 2003-11-23 devnull 	uint	nsleep;
328 97a5e5f2 2003-11-23 devnull 	Packet	*part;
329 97a5e5f2 2003-11-23 devnull 	Rendez	tagrend;
330 97a5e5f2 2003-11-23 devnull 	Rendez	rpcfork;
331 97a5e5f2 2003-11-23 devnull 	char	*version;
332 97a5e5f2 2003-11-23 devnull 	char	*uid;
333 79793adc 2011-06-13 rsc 	char	*sid;
334 79793adc 2011-06-13 rsc 	char	addr[256];	/* address of other side */
335 97a5e5f2 2003-11-23 devnull };
336 97a5e5f2 2003-11-23 devnull 
337 79793adc 2011-06-13 rsc VtConn*	vtconn(int infd, int outfd);
338 79793adc 2011-06-13 rsc VtConn*	vtdial(char*);
339 79793adc 2011-06-13 rsc void	vtfreeconn(VtConn*);
340 79793adc 2011-06-13 rsc int	vtsend(VtConn*, Packet*);
341 79793adc 2011-06-13 rsc Packet*	vtrecv(VtConn*);
342 79793adc 2011-06-13 rsc int	vtversion(VtConn* z);
343 79793adc 2011-06-13 rsc void	vtdebug(VtConn* z, char*, ...);
344 79793adc 2011-06-13 rsc void	vthangup(VtConn* z);
345 79793adc 2011-06-13 rsc int	vtgoodbye(VtConn* z);
346 6fc7da3c 2006-10-19 devnull 
347 97a5e5f2 2003-11-23 devnull /* #pragma varargck argpos vtdebug 2 */
348 97a5e5f2 2003-11-23 devnull 
349 97a5e5f2 2003-11-23 devnull /* server */
350 97a5e5f2 2003-11-23 devnull typedef struct VtSrv VtSrv;
351 97a5e5f2 2003-11-23 devnull typedef struct VtReq VtReq;
352 97a5e5f2 2003-11-23 devnull struct VtReq
353 97a5e5f2 2003-11-23 devnull {
354 79793adc 2011-06-13 rsc 	VtFcall	tx;
355 79793adc 2011-06-13 rsc 	VtFcall	rx;
356 97a5e5f2 2003-11-23 devnull /* private */
357 79793adc 2011-06-13 rsc 	VtSrv	*srv;
358 79793adc 2011-06-13 rsc 	void	*sc;
359 79793adc 2011-06-13 rsc };
360 97a5e5f2 2003-11-23 devnull 
361 79793adc 2011-06-13 rsc int	vtsrvhello(VtConn*);
362 79793adc 2011-06-13 rsc VtSrv*	vtlisten(char *addr);
363 79793adc 2011-06-13 rsc VtReq*	vtgetreq(VtSrv*);
364 79793adc 2011-06-13 rsc void	vtrespond(VtReq*);
365 79793adc 2011-06-13 rsc 
366 97a5e5f2 2003-11-23 devnull /* client */
367 79793adc 2011-06-13 rsc Packet*	vtrpc(VtConn*, Packet*);
368 79793adc 2011-06-13 rsc Packet*	_vtrpc(VtConn*, Packet*, VtFcall*);
369 79793adc 2011-06-13 rsc void	vtrecvproc(void*);	/* VtConn */
370 79793adc 2011-06-13 rsc void	vtsendproc(void*);	/* VtConn */
371 97a5e5f2 2003-11-23 devnull 
372 79793adc 2011-06-13 rsc int	vtconnect(VtConn*);
373 79793adc 2011-06-13 rsc int	vthello(VtConn*);
374 79793adc 2011-06-13 rsc int	vtread(VtConn*, uchar score[VtScoreSize], uint type, uchar *buf, int n);
375 79793adc 2011-06-13 rsc int	vtwrite(VtConn*, uchar score[VtScoreSize], uint type, uchar *buf, int n);
376 79793adc 2011-06-13 rsc Packet*	vtreadpacket(VtConn*, uchar score[VtScoreSize], uint type, int n);
377 79793adc 2011-06-13 rsc int	vtwritepacket(VtConn*, uchar score[VtScoreSize], uint type, Packet *p);
378 79793adc 2011-06-13 rsc int	vtsync(VtConn*);
379 79793adc 2011-06-13 rsc int	vtping(VtConn*);
380 97a5e5f2 2003-11-23 devnull 
381 97a5e5f2 2003-11-23 devnull /*
382 97a5e5f2 2003-11-23 devnull  * Data blocks and block cache.
383 97a5e5f2 2003-11-23 devnull  */
384 97a5e5f2 2003-11-23 devnull enum
385 97a5e5f2 2003-11-23 devnull {
386 cbeb0b26 2006-04-01 devnull 	NilBlock = ~0
387 97a5e5f2 2003-11-23 devnull };
388 97a5e5f2 2003-11-23 devnull 
389 97a5e5f2 2003-11-23 devnull typedef struct VtBlock VtBlock;
390 97a5e5f2 2003-11-23 devnull typedef struct VtCache VtCache;
391 97a5e5f2 2003-11-23 devnull 
392 97a5e5f2 2003-11-23 devnull struct VtBlock
393 97a5e5f2 2003-11-23 devnull {
394 97a5e5f2 2003-11-23 devnull 	VtCache	*c;
395 97a5e5f2 2003-11-23 devnull 	QLock	lk;
396 97a5e5f2 2003-11-23 devnull 
397 97a5e5f2 2003-11-23 devnull 	uchar	*data;
398 97a5e5f2 2003-11-23 devnull 	uchar	score[VtScoreSize];
399 75d04888 2009-05-25 rsc 	uchar	type;	/* VtXXX */
400 75d04888 2009-05-25 rsc 	ulong	size;
401 97a5e5f2 2003-11-23 devnull 
402 97a5e5f2 2003-11-23 devnull 	/* internal to cache */
403 79793adc 2011-06-13 rsc 	int	nlock;
404 79793adc 2011-06-13 rsc 	int	iostate;
405 79793adc 2011-06-13 rsc 	int	ref;
406 97a5e5f2 2003-11-23 devnull 	u32int	heap;
407 97a5e5f2 2003-11-23 devnull 	VtBlock	*next;
408 97a5e5f2 2003-11-23 devnull 	VtBlock	**prev;
409 97a5e5f2 2003-11-23 devnull 	u32int	used;
410 97a5e5f2 2003-11-23 devnull 	u32int	used2;
411 97a5e5f2 2003-11-23 devnull 	u32int	addr;
412 6fc7da3c 2006-10-19 devnull 	uintptr	pc;
413 97a5e5f2 2003-11-23 devnull };
414 97a5e5f2 2003-11-23 devnull 
415 79793adc 2011-06-13 rsc u32int	vtglobaltolocal(uchar[VtScoreSize]);
416 79793adc 2011-06-13 rsc void	vtlocaltoglobal(u32int, uchar[VtScoreSize]);
417 97a5e5f2 2003-11-23 devnull 
418 79793adc 2011-06-13 rsc VtCache*vtcachealloc(VtConn*, ulong maxmem);
419 79793adc 2011-06-13 rsc void	vtcachefree(VtCache*);
420 79793adc 2011-06-13 rsc VtBlock*vtcachelocal(VtCache*, u32int addr, int type);
421 79793adc 2011-06-13 rsc VtBlock*vtcacheglobal(VtCache*, uchar[VtScoreSize], int type, ulong size);
422 79793adc 2011-06-13 rsc VtBlock*vtcacheallocblock(VtCache*, int type, ulong size);
423 79793adc 2011-06-13 rsc void	vtcachesetwrite(VtCache*,
424 79793adc 2011-06-13 rsc 	int(*)(VtConn*, uchar[VtScoreSize], uint, uchar*, int));
425 79793adc 2011-06-13 rsc void	vtblockput(VtBlock*);
426 79793adc 2011-06-13 rsc int	vtblockwrite(VtBlock*);
427 79793adc 2011-06-13 rsc VtBlock*vtblockcopy(VtBlock*);
428 79793adc 2011-06-13 rsc void	vtblockduplock(VtBlock*);
429 97a5e5f2 2003-11-23 devnull 
430 7252036f 2005-11-02 devnull extern int vtcachencopy, vtcachenread, vtcachenwrite;
431 11b0772a 2006-05-05 devnull extern int vttracelevel;
432 7252036f 2005-11-02 devnull 
433 97a5e5f2 2003-11-23 devnull /*
434 97a5e5f2 2003-11-23 devnull  * Hash tree file tree.
435 97a5e5f2 2003-11-23 devnull  */
436 97a5e5f2 2003-11-23 devnull typedef struct VtFile VtFile;
437 d23a617a 2004-03-15 devnull struct VtFile
438 d23a617a 2004-03-15 devnull {
439 79793adc 2011-06-13 rsc 	QLock	lk;
440 79793adc 2011-06-13 rsc 	int	ref;
441 79793adc 2011-06-13 rsc 	int	local;
442 79793adc 2011-06-13 rsc 	VtBlock	*b;			/* block containing this file */
443 79793adc 2011-06-13 rsc 	uchar	score[VtScoreSize];	/* score of block containing this file */
444 79793adc 2011-06-13 rsc 	int	bsize;			/* size of block */
445 97a5e5f2 2003-11-23 devnull 
446 d23a617a 2004-03-15 devnull /* immutable */
447 79793adc 2011-06-13 rsc 	VtCache	*c;
448 79793adc 2011-06-13 rsc 	int	mode;
449 79793adc 2011-06-13 rsc 	u32int	gen;
450 79793adc 2011-06-13 rsc 	int	dsize;
451 79793adc 2011-06-13 rsc 	int	psize;
452 79793adc 2011-06-13 rsc 	int	dir;
453 79793adc 2011-06-13 rsc 	VtFile	*parent;
454 79793adc 2011-06-13 rsc 	int	epb;			/* entries per block in parent */
455 79793adc 2011-06-13 rsc 	u32int	offset; 		/* entry offset in parent */
456 d23a617a 2004-03-15 devnull };
457 d23a617a 2004-03-15 devnull 
458 97a5e5f2 2003-11-23 devnull enum
459 97a5e5f2 2003-11-23 devnull {
460 97a5e5f2 2003-11-23 devnull 	VtOREAD,
461 97a5e5f2 2003-11-23 devnull 	VtOWRITE,
462 cbeb0b26 2006-04-01 devnull 	VtORDWR
463 97a5e5f2 2003-11-23 devnull };
464 97a5e5f2 2003-11-23 devnull 
465 79793adc 2011-06-13 rsc VtBlock*vtfileblock(VtFile*, u32int, int mode);
466 79793adc 2011-06-13 rsc int	vtfileblockscore(VtFile*, u32int, uchar[VtScoreSize]);
467 79793adc 2011-06-13 rsc void	vtfileclose(VtFile*);
468 79793adc 2011-06-13 rsc VtFile*	_vtfilecreate(VtFile*, int offset, int psize, int dsize, int dir);
469 79793adc 2011-06-13 rsc VtFile*	vtfilecreate(VtFile*, int psize, int dsize, int dir);
470 79793adc 2011-06-13 rsc VtFile*	vtfilecreateroot(VtCache*, int psize, int dsize, int type);
471 79793adc 2011-06-13 rsc int	vtfileflush(VtFile*);
472 79793adc 2011-06-13 rsc int	vtfileflushbefore(VtFile*, u64int);
473 79793adc 2011-06-13 rsc u32int	vtfilegetdirsize(VtFile*);
474 79793adc 2011-06-13 rsc int	vtfilegetentry(VtFile*, VtEntry*);
475 79793adc 2011-06-13 rsc uvlong	vtfilegetsize(VtFile*);
476 79793adc 2011-06-13 rsc void	vtfileincref(VtFile*);
477 79793adc 2011-06-13 rsc int	vtfilelock2(VtFile*, VtFile*, int);
478 79793adc 2011-06-13 rsc int	vtfilelock(VtFile*, int);
479 79793adc 2011-06-13 rsc VtFile*	vtfileopen(VtFile*, u32int, int);
480 79793adc 2011-06-13 rsc VtFile*	vtfileopenroot(VtCache*, VtEntry*);
481 79793adc 2011-06-13 rsc long	vtfileread(VtFile*, void*, long, vlong);
482 79793adc 2011-06-13 rsc int	vtfileremove(VtFile*);
483 79793adc 2011-06-13 rsc int	vtfilesetdirsize(VtFile*, u32int);
484 79793adc 2011-06-13 rsc int	vtfilesetentry(VtFile*, VtEntry*);
485 79793adc 2011-06-13 rsc int	vtfilesetsize(VtFile*, u64int);
486 79793adc 2011-06-13 rsc int	vtfiletruncate(VtFile*);
487 97a5e5f2 2003-11-23 devnull void	vtfileunlock(VtFile*);
488 79793adc 2011-06-13 rsc long	vtfilewrite(VtFile*, void*, long, vlong);
489 d20564a9 2006-07-18 devnull 
490 79793adc 2011-06-13 rsc int	vttimefmt(Fmt*);
491 97a5e5f2 2003-11-23 devnull 
492 a09e80f9 2004-05-23 devnull extern int chattyventi;
493 a09e80f9 2004-05-23 devnull extern int ventidoublechecksha1;
494 5810cad0 2005-02-15 devnull extern int ventilogging;
495 a09e80f9 2004-05-23 devnull 
496 587f8f4d 2005-02-13 devnull extern char *VtServerLog;
497 587f8f4d 2005-02-13 devnull 
498 819822c9 2004-06-16 devnull #ifdef __cplusplus
499 f7012583 2003-11-25 devnull }
500 f7012583 2003-11-25 devnull #endif
501 f7012583 2003-11-25 devnull #endif