1 7763a61a 2003-11-23 devnull #include "stdinc.h"
  2 7763a61a 2003-11-23 devnull #include <bio.h>
  3 7763a61a 2003-11-23 devnull 
  4 7763a61a 2003-11-23 devnull typedef struct Source Source;
  5 7763a61a 2003-11-23 devnull 
  6 7763a61a 2003-11-23 devnull struct Source
  7 7763a61a 2003-11-23 devnull {
  8 7763a61a 2003-11-23 devnull 	ulong gen;
  9 7763a61a 2003-11-23 devnull 	int psize;
 10 7763a61a 2003-11-23 devnull 	int dsize;
 11 7763a61a 2003-11-23 devnull 	int dir;
 12 7763a61a 2003-11-23 devnull 	int active;
 13 7763a61a 2003-11-23 devnull 	int depth;
 14 7763a61a 2003-11-23 devnull 	uvlong size;
 15 7763a61a 2003-11-23 devnull 	uchar score[VtScoreSize];
 16 7763a61a 2003-11-23 devnull 	int reserved;
 17 7763a61a 2003-11-23 devnull };
 18 7763a61a 2003-11-23 devnull 
 19 7763a61a 2003-11-23 devnull int bsize;
 20 7763a61a 2003-11-23 devnull Biobuf *bout;
 21 7763a61a 2003-11-23 devnull VtRoot root;
 22 7763a61a 2003-11-23 devnull int ver;
 23 7763a61a 2003-11-23 devnull int cmp;
 24 7763a61a 2003-11-23 devnull int all;
 25 7763a61a 2003-11-23 devnull int find;
 26 7763a61a 2003-11-23 devnull uchar fscore[VtScoreSize];
 27 3d77c87e 2004-03-15 devnull VtConn *z;
 28 7763a61a 2003-11-23 devnull 
 29 3d77c87e 2004-03-15 devnull int vtgetuint16(uchar *p);
 30 3d77c87e 2004-03-15 devnull ulong vtgetuint32(uchar *p);
 31 3d77c87e 2004-03-15 devnull uvlong vtgetuint48(uchar *p);
 32 7763a61a 2003-11-23 devnull void usage(void);
 33 3d77c87e 2004-03-15 devnull void readroot(VtRoot*, uchar *score, char *file);
 34 3d77c87e 2004-03-15 devnull int dumpdir(Source*, int indent);
 35 bb501e12 2004-06-17 devnull int timevtread(VtConn*, uchar*, int, void*, int);
 36 7763a61a 2003-11-23 devnull 
 37 bb501e12 2004-06-17 devnull int mainstacksize = 512*1024;
 38 bb501e12 2004-06-17 devnull 
 39 7763a61a 2003-11-23 devnull void
 40 3d77c87e 2004-03-15 devnull threadmain(int argc, char *argv[])
 41 7763a61a 2003-11-23 devnull {
 42 3d77c87e 2004-03-15 devnull 	char *host = nil, *pref;
 43 7763a61a 2003-11-23 devnull 	uchar score[VtScoreSize];
 44 7763a61a 2003-11-23 devnull 	Source source;
 45 7763a61a 2003-11-23 devnull 	char *p;
 46 7763a61a 2003-11-23 devnull 	int n;
 47 bb501e12 2004-06-17 devnull 	uchar buf[VtMaxLumpSize];
 48 7763a61a 2003-11-23 devnull 
 49 7763a61a 2003-11-23 devnull 	ARGBEGIN{
 50 7763a61a 2003-11-23 devnull 	case 'h':
 51 7763a61a 2003-11-23 devnull 		host = ARGF();
 52 7763a61a 2003-11-23 devnull 		break;
 53 7763a61a 2003-11-23 devnull 	case 'c':
 54 7763a61a 2003-11-23 devnull 		cmp++;
 55 7763a61a 2003-11-23 devnull 		break;
 56 7763a61a 2003-11-23 devnull 	case 'f':
 57 7763a61a 2003-11-23 devnull 		find++;
 58 7763a61a 2003-11-23 devnull 		p = ARGF();
 59 3d77c87e 2004-03-15 devnull 		if(p == nil || vtparsescore(p, &pref, fscore) < 0 || !pref || strcmp(pref, "vac") != 0)
 60 7763a61a 2003-11-23 devnull 			usage();
 61 7763a61a 2003-11-23 devnull 		break;
 62 7763a61a 2003-11-23 devnull 	case 'a':
 63 7763a61a 2003-11-23 devnull 		all = 1;
 64 7763a61a 2003-11-23 devnull 		break;
 65 7763a61a 2003-11-23 devnull 	}ARGEND
 66 7763a61a 2003-11-23 devnull 
 67 3d77c87e 2004-03-15 devnull 	bout = vtmallocz(sizeof(Biobuf));
 68 7763a61a 2003-11-23 devnull 	Binit(bout, 1, OWRITE);
 69 7763a61a 2003-11-23 devnull 
 70 7763a61a 2003-11-23 devnull 	if(argc > 1)
 71 7763a61a 2003-11-23 devnull 		usage();
 72 7763a61a 2003-11-23 devnull 
 73 3d77c87e 2004-03-15 devnull 	fmtinstall('V', vtscorefmt);
 74 3d77c87e 2004-03-15 devnull 	fmtinstall('H', encodefmt);
 75 7763a61a 2003-11-23 devnull 
 76 3d77c87e 2004-03-15 devnull 	z = vtdial(host);
 77 7763a61a 2003-11-23 devnull 	if(z == nil)
 78 3d77c87e 2004-03-15 devnull 		sysfatal("could not connect to server: %r");
 79 7763a61a 2003-11-23 devnull 
 80 3d77c87e 2004-03-15 devnull 	if(vtconnect(z) < 0)
 81 3d77c87e 2004-03-15 devnull 		sysfatal("vtconnect: %r");
 82 7763a61a 2003-11-23 devnull 
 83 3d77c87e 2004-03-15 devnull 	readroot(&root, score, argv[0]);
 84 3d77c87e 2004-03-15 devnull 	bsize = root.blocksize;
 85 7763a61a 2003-11-23 devnull 	if(!find) {
 86 7763a61a 2003-11-23 devnull 		Bprint(bout, "score: %V\n", score);
 87 7763a61a 2003-11-23 devnull 		Bprint(bout, "name: %s\n", root.name);
 88 7763a61a 2003-11-23 devnull 		Bprint(bout, "type: %s\n", root.type);
 89 7763a61a 2003-11-23 devnull 		Bprint(bout, "bsize: %d\n", bsize);
 90 7763a61a 2003-11-23 devnull 		Bprint(bout, "prev: %V\n", root.prev);
 91 7763a61a 2003-11-23 devnull 	}
 92 7763a61a 2003-11-23 devnull 
 93 be36ff68 2004-04-29 devnull fprint(2, "read...\n");
 94 bb501e12 2004-06-17 devnull 	n = timevtread(z, root.score, VtDirType, buf, bsize);
 95 7763a61a 2003-11-23 devnull 	if(n < 0)
 96 7763a61a 2003-11-23 devnull 		sysfatal("could not read root dir");
 97 7763a61a 2003-11-23 devnull 
 98 be36ff68 2004-04-29 devnull fprint(2, "...\n");
 99 7763a61a 2003-11-23 devnull 	/* fake up top level source */
100 7763a61a 2003-11-23 devnull 	memset(&source, 0, sizeof(source));
101 7763a61a 2003-11-23 devnull 	memmove(source.score, root.score, VtScoreSize);
102 7763a61a 2003-11-23 devnull 	source.psize = bsize;
103 7763a61a 2003-11-23 devnull 	source.dsize = bsize;
104 7763a61a 2003-11-23 devnull 	source.dir = 1;
105 7763a61a 2003-11-23 devnull 	source.active = 1;
106 7763a61a 2003-11-23 devnull 	source.depth = 0;
107 7763a61a 2003-11-23 devnull 	source.size = n;
108 7763a61a 2003-11-23 devnull 
109 3d77c87e 2004-03-15 devnull 	dumpdir(&source, 0);
110 7763a61a 2003-11-23 devnull 
111 7763a61a 2003-11-23 devnull 	Bterm(bout);
112 7763a61a 2003-11-23 devnull 
113 3d77c87e 2004-03-15 devnull 	vthangup(z);
114 3d77c87e 2004-03-15 devnull 	threadexitsall(0);
115 7763a61a 2003-11-23 devnull }
116 7763a61a 2003-11-23 devnull 
117 7763a61a 2003-11-23 devnull void
118 3d77c87e 2004-03-15 devnull sourceprint(Source *s, int indent, int entry)
119 7763a61a 2003-11-23 devnull {
120 7763a61a 2003-11-23 devnull 	int i;
121 7763a61a 2003-11-23 devnull 	uvlong size;
122 7763a61a 2003-11-23 devnull 	int ne;
123 7763a61a 2003-11-23 devnull 
124 7763a61a 2003-11-23 devnull 	for(i=0; i<indent; i++)
125 7763a61a 2003-11-23 devnull 		Bprint(bout, " ");
126 7763a61a 2003-11-23 devnull 	Bprint(bout, "%4d", entry);
127 7763a61a 2003-11-23 devnull 	if(s->active) {
128 7763a61a 2003-11-23 devnull 		/* dir size in directory entries */
129 7763a61a 2003-11-23 devnull 		if(s->dir) {
130 7763a61a 2003-11-23 devnull 			ne = s->dsize/VtEntrySize;
131 7763a61a 2003-11-23 devnull 			size = ne*(s->size/s->dsize) + (s->size%s->dsize)/VtEntrySize;
132 7763a61a 2003-11-23 devnull 		} else 
133 7763a61a 2003-11-23 devnull 			size = s->size;
134 7763a61a 2003-11-23 devnull 		if(cmp) {
135 7763a61a 2003-11-23 devnull 			Bprint(bout, ": gen: %lud size: %llud",
136 7763a61a 2003-11-23 devnull 				s->gen, size);
137 7763a61a 2003-11-23 devnull 			if(!s->dir)
138 7763a61a 2003-11-23 devnull 				Bprint(bout, ": %V", s->score);
139 7763a61a 2003-11-23 devnull 		} else {
140 7763a61a 2003-11-23 devnull 			Bprint(bout, ": gen: %lud psize: %d dsize: %d",
141 7763a61a 2003-11-23 devnull 				s->gen, s->psize, s->dsize);
142 7763a61a 2003-11-23 devnull 			Bprint(bout, " depth: %d size: %llud: %V",
143 7763a61a 2003-11-23 devnull 				s->depth, size, s->score);
144 7763a61a 2003-11-23 devnull 		}
145 7763a61a 2003-11-23 devnull 		
146 7763a61a 2003-11-23 devnull 		if(s->reserved)
147 7763a61a 2003-11-23 devnull 			Bprint(bout, ": reserved not emtpy");
148 7763a61a 2003-11-23 devnull 	}
149 7763a61a 2003-11-23 devnull 	Bprint(bout, "\n");
150 7763a61a 2003-11-23 devnull }
151 7763a61a 2003-11-23 devnull 
152 7763a61a 2003-11-23 devnull int
153 7763a61a 2003-11-23 devnull parse(Source *s, uchar *p)
154 7763a61a 2003-11-23 devnull {
155 7763a61a 2003-11-23 devnull 	VtEntry dir;
156 7763a61a 2003-11-23 devnull 
157 7763a61a 2003-11-23 devnull 	memset(s, 0, sizeof(*s));
158 3d77c87e 2004-03-15 devnull 	if(vtentryunpack(&dir, p, 0) < 0)
159 3d77c87e 2004-03-15 devnull 		return -1;
160 7763a61a 2003-11-23 devnull 
161 7763a61a 2003-11-23 devnull 	if(!(dir.flags & VtEntryActive))
162 3d77c87e 2004-03-15 devnull 		return 0;
163 7763a61a 2003-11-23 devnull 
164 7763a61a 2003-11-23 devnull 	s->active = 1;
165 7763a61a 2003-11-23 devnull 	s->gen = dir.gen;
166 7763a61a 2003-11-23 devnull 	s->psize = dir.psize;
167 bb501e12 2004-06-17 devnull 	s->dsize = dir.dsize;
168 7763a61a 2003-11-23 devnull 	s->size = dir.size;
169 7763a61a 2003-11-23 devnull 	memmove(s->score, dir.score, VtScoreSize);
170 3d77c87e 2004-03-15 devnull 	if((dir.type&~VtTypeDepthMask) == VtDirType)
171 7763a61a 2003-11-23 devnull 		s->dir = 1;
172 3d77c87e 2004-03-15 devnull 	s->depth = dir.type&VtTypeDepthMask;
173 3d77c87e 2004-03-15 devnull 	return 0;
174 7763a61a 2003-11-23 devnull }
175 7763a61a 2003-11-23 devnull 
176 7763a61a 2003-11-23 devnull int
177 3d77c87e 2004-03-15 devnull sourceread(Source *s, ulong block, uchar *p, int n)
178 7763a61a 2003-11-23 devnull {
179 3d77c87e 2004-03-15 devnull 	uchar *buf;
180 7763a61a 2003-11-23 devnull 	uchar score[VtScoreSize];
181 7763a61a 2003-11-23 devnull 	int i, nn, np, type;
182 7763a61a 2003-11-23 devnull 	int elem[VtPointerDepth];
183 7763a61a 2003-11-23 devnull 
184 3d77c87e 2004-03-15 devnull 	buf = vtmalloc(VtMaxLumpSize);
185 3d77c87e 2004-03-15 devnull 
186 7763a61a 2003-11-23 devnull 	memmove(score, s->score, VtScoreSize);
187 7763a61a 2003-11-23 devnull 
188 7763a61a 2003-11-23 devnull 	np = s->psize/VtScoreSize;
189 7763a61a 2003-11-23 devnull 	for(i=0; i<s->depth; i++) {
190 7763a61a 2003-11-23 devnull 		elem[i] = block % np;
191 7763a61a 2003-11-23 devnull 		block /= np;
192 7763a61a 2003-11-23 devnull 	}
193 7763a61a 2003-11-23 devnull 	assert(block == 0);
194 7763a61a 2003-11-23 devnull 
195 7763a61a 2003-11-23 devnull 	for(i=s->depth-1; i>=0; i--) {
196 bb501e12 2004-06-17 devnull 		nn = timevtread(z, score, (s->dir ? VtDirType : VtDataType)+1+i, buf, s->psize);
197 3d77c87e 2004-03-15 devnull 		if(nn < 0){
198 3d77c87e 2004-03-15 devnull fprint(2, "vtread %V %d: %r\n", score, (s->dir ? VtDirType : VtDataType)+1+i);
199 3d77c87e 2004-03-15 devnull 			free(buf);
200 7763a61a 2003-11-23 devnull 			return -1;
201 7763a61a 2003-11-23 devnull 		}
202 7763a61a 2003-11-23 devnull 
203 3d77c87e 2004-03-15 devnull 		if((elem[i]+1)*VtScoreSize > nn){
204 3d77c87e 2004-03-15 devnull 			free(buf);
205 7763a61a 2003-11-23 devnull 			return 0;
206 3d77c87e 2004-03-15 devnull 		}
207 7763a61a 2003-11-23 devnull 		memmove(score, buf + elem[i]*VtScoreSize, VtScoreSize);
208 7763a61a 2003-11-23 devnull 	}
209 7763a61a 2003-11-23 devnull 
210 7763a61a 2003-11-23 devnull 	if(s->dir)
211 7763a61a 2003-11-23 devnull 		type = VtDirType;
212 7763a61a 2003-11-23 devnull 	else
213 7763a61a 2003-11-23 devnull 		type = VtDataType;
214 7763a61a 2003-11-23 devnull 
215 bb501e12 2004-06-17 devnull 	nn = timevtread(z, score, type, p, n);
216 3d77c87e 2004-03-15 devnull 	if(nn < 0){
217 3d77c87e 2004-03-15 devnull fprint(2, "vtread %V %d: %r\n", score, type);
218 3d77c87e 2004-03-15 devnull abort();
219 3d77c87e 2004-03-15 devnull 		free(buf);
220 7763a61a 2003-11-23 devnull 		return -1;
221 7763a61a 2003-11-23 devnull 	}
222 7763a61a 2003-11-23 devnull 	
223 3d77c87e 2004-03-15 devnull 	free(buf);
224 7763a61a 2003-11-23 devnull 	return nn;
225 7763a61a 2003-11-23 devnull }
226 7763a61a 2003-11-23 devnull 
227 7763a61a 2003-11-23 devnull void
228 3d77c87e 2004-03-15 devnull dumpfilecontents(Source *s)
229 7763a61a 2003-11-23 devnull {
230 7763a61a 2003-11-23 devnull 	int nb, lb, i, n;
231 7763a61a 2003-11-23 devnull 	uchar buf[VtMaxLumpSize];
232 7763a61a 2003-11-23 devnull 
233 7763a61a 2003-11-23 devnull 	nb = (s->size + s->dsize - 1)/s->dsize;
234 7763a61a 2003-11-23 devnull 	lb = s->size%s->dsize;
235 7763a61a 2003-11-23 devnull 	for(i=0; i<nb; i++) {
236 7763a61a 2003-11-23 devnull 		memset(buf, 0, s->dsize);
237 3d77c87e 2004-03-15 devnull 		n = sourceread(s, i, buf, s->dsize);
238 7763a61a 2003-11-23 devnull 		if(n < 0) {	
239 3d77c87e 2004-03-15 devnull 			fprint(2, "could not read block: %d: %r\n", i);
240 7763a61a 2003-11-23 devnull 			continue;
241 7763a61a 2003-11-23 devnull 		}
242 7763a61a 2003-11-23 devnull 		if(i < nb-1)
243 7763a61a 2003-11-23 devnull 			Bwrite(bout, buf, s->dsize);
244 7763a61a 2003-11-23 devnull 		else
245 7763a61a 2003-11-23 devnull 			Bwrite(bout, buf, lb);
246 7763a61a 2003-11-23 devnull 	}
247 7763a61a 2003-11-23 devnull }
248 7763a61a 2003-11-23 devnull 
249 7763a61a 2003-11-23 devnull void
250 3d77c87e 2004-03-15 devnull dumpfile(Source *s, int indent)
251 7763a61a 2003-11-23 devnull {
252 7763a61a 2003-11-23 devnull 	int nb, i, j, n;
253 3d77c87e 2004-03-15 devnull 	uchar *buf;
254 7763a61a 2003-11-23 devnull 	uchar score[VtScoreSize];
255 7763a61a 2003-11-23 devnull 
256 3d77c87e 2004-03-15 devnull 	buf = vtmalloc(VtMaxLumpSize);
257 7763a61a 2003-11-23 devnull 	nb = (s->size + s->dsize - 1)/s->dsize;
258 7763a61a 2003-11-23 devnull 	for(i=0; i<nb; i++) {
259 7763a61a 2003-11-23 devnull 		memset(buf, 0, s->dsize);
260 3d77c87e 2004-03-15 devnull 		n = sourceread(s, i, buf, s->dsize);
261 7763a61a 2003-11-23 devnull 		if(n < 0) {	
262 3d77c87e 2004-03-15 devnull 			fprint(2, "could not read block: %d: %r\n", i);
263 7763a61a 2003-11-23 devnull 			continue;
264 7763a61a 2003-11-23 devnull 		}
265 7763a61a 2003-11-23 devnull 		for(j=0; j<indent; j++)
266 7763a61a 2003-11-23 devnull 			Bprint(bout, " ");
267 3d77c87e 2004-03-15 devnull 		sha1(buf, n, score, nil);		
268 7763a61a 2003-11-23 devnull 		Bprint(bout, "%4d: size: %ud: %V\n", i, n, score);
269 7763a61a 2003-11-23 devnull 	}
270 3d77c87e 2004-03-15 devnull 	vtfree(buf);
271 7763a61a 2003-11-23 devnull }
272 7763a61a 2003-11-23 devnull 
273 7763a61a 2003-11-23 devnull int
274 3d77c87e 2004-03-15 devnull dumpdir(Source *s, int indent)
275 7763a61a 2003-11-23 devnull {
276 7763a61a 2003-11-23 devnull 	int pb, ne, nb, i, j, n, entry;
277 7763a61a 2003-11-23 devnull 	Source ss;
278 3d77c87e 2004-03-15 devnull 	uchar *buf;
279 7763a61a 2003-11-23 devnull 
280 3d77c87e 2004-03-15 devnull 	buf = vtmalloc(VtMaxLumpSize);
281 7763a61a 2003-11-23 devnull 	pb = s->dsize/VtEntrySize;
282 7763a61a 2003-11-23 devnull 	ne = pb*(s->size/s->dsize) + (s->size%s->dsize)/VtEntrySize;
283 7763a61a 2003-11-23 devnull 	nb = (s->size + s->dsize - 1)/s->dsize;
284 7763a61a 2003-11-23 devnull 	for(i=0; i<nb; i++) {
285 7763a61a 2003-11-23 devnull 		memset(buf, 0, s->dsize);
286 3d77c87e 2004-03-15 devnull 		n = sourceread(s, i, buf, s->dsize);
287 7763a61a 2003-11-23 devnull 		if(n < 0) {	
288 3d77c87e 2004-03-15 devnull 			fprint(2, "could not read block: %d: %r\n", i);
289 7763a61a 2003-11-23 devnull 			continue;
290 7763a61a 2003-11-23 devnull 		}
291 7763a61a 2003-11-23 devnull 		for(j=0; j<pb; j++) {
292 7763a61a 2003-11-23 devnull 			entry = i*pb + j;
293 7763a61a 2003-11-23 devnull 			if(entry >= ne)
294 7763a61a 2003-11-23 devnull 				break;
295 7763a61a 2003-11-23 devnull 			parse(&ss, buf + j * VtEntrySize);
296 7763a61a 2003-11-23 devnull 
297 7763a61a 2003-11-23 devnull 			if(!find)
298 3d77c87e 2004-03-15 devnull 				sourceprint(&ss, indent, entry);
299 7763a61a 2003-11-23 devnull 			else if(memcmp(ss.score, fscore, VtScoreSize) == 0) {
300 3d77c87e 2004-03-15 devnull 				dumpfilecontents(&ss);
301 3d77c87e 2004-03-15 devnull 				free(buf);
302 3d77c87e 2004-03-15 devnull 				return -1;
303 7763a61a 2003-11-23 devnull 			}
304 7763a61a 2003-11-23 devnull 
305 7763a61a 2003-11-23 devnull 			if(ss.dir) {
306 3d77c87e 2004-03-15 devnull 				if(dumpdir(&ss, indent+1) < 0){
307 3d77c87e 2004-03-15 devnull 					free(buf);
308 3d77c87e 2004-03-15 devnull 					return -1;
309 3d77c87e 2004-03-15 devnull 				}
310 7763a61a 2003-11-23 devnull 			} else if(all)
311 3d77c87e 2004-03-15 devnull 				dumpfile(&ss, indent+1);
312 7763a61a 2003-11-23 devnull 		}
313 7763a61a 2003-11-23 devnull 	}
314 3d77c87e 2004-03-15 devnull 	free(buf);
315 3d77c87e 2004-03-15 devnull 	return 0;
316 7763a61a 2003-11-23 devnull }
317 7763a61a 2003-11-23 devnull 
318 7763a61a 2003-11-23 devnull void
319 7763a61a 2003-11-23 devnull usage(void)
320 7763a61a 2003-11-23 devnull {
321 7763a61a 2003-11-23 devnull 	fprint(2, "%s: [file]\n", argv0);
322 3d77c87e 2004-03-15 devnull 	threadexits("usage");
323 7763a61a 2003-11-23 devnull }
324 7763a61a 2003-11-23 devnull 
325 7763a61a 2003-11-23 devnull void
326 3d77c87e 2004-03-15 devnull readroot(VtRoot *root, uchar *score, char *file)
327 7763a61a 2003-11-23 devnull {
328 7763a61a 2003-11-23 devnull 	int fd;
329 3d77c87e 2004-03-15 devnull 	char *pref;
330 3d77c87e 2004-03-15 devnull 	char buf[VtRootSize];
331 3d77c87e 2004-03-15 devnull 	int n, nn;
332 7763a61a 2003-11-23 devnull 
333 7763a61a 2003-11-23 devnull 	if(file == 0)
334 7763a61a 2003-11-23 devnull 		fd = 0;
335 7763a61a 2003-11-23 devnull 	else {
336 7763a61a 2003-11-23 devnull 		fd = open(file, OREAD);
337 7763a61a 2003-11-23 devnull 		if(fd < 0)
338 7763a61a 2003-11-23 devnull 			sysfatal("could not open file: %s: %r\n", file);
339 7763a61a 2003-11-23 devnull 	}
340 7763a61a 2003-11-23 devnull 	n = readn(fd, buf, sizeof(buf)-1);
341 7763a61a 2003-11-23 devnull 	if(n < 0)
342 7763a61a 2003-11-23 devnull 		sysfatal("read failed: %r\n");
343 3d77c87e 2004-03-15 devnull 	if(n==0 || buf[n-1] != '\n')
344 3d77c87e 2004-03-15 devnull 		sysfatal("not a root file");
345 3d77c87e 2004-03-15 devnull 	buf[n-1] = 0;
346 7763a61a 2003-11-23 devnull 	close(fd);
347 7763a61a 2003-11-23 devnull 
348 3d77c87e 2004-03-15 devnull 	if(vtparsescore(buf, &pref, score) < 0){
349 3d77c87e 2004-03-15 devnull 		sysfatal("not a root file");
350 7763a61a 2003-11-23 devnull 	}
351 bb501e12 2004-06-17 devnull 	nn = timevtread(z, score, VtRootType, buf, VtRootSize);
352 3d77c87e 2004-03-15 devnull 	if(nn < 0)
353 3d77c87e 2004-03-15 devnull 		sysfatal("cannot read root %V", score);
354 3d77c87e 2004-03-15 devnull 	if(vtrootunpack(root, buf) < 0)
355 3d77c87e 2004-03-15 devnull 		sysfatal("cannot parse root: %r");
356 7763a61a 2003-11-23 devnull }
357 bb501e12 2004-06-17 devnull 
358 bb501e12 2004-06-17 devnull int
359 bb501e12 2004-06-17 devnull timevtread(VtConn *z, uchar *score, int type, void *buf, int nbuf)
360 bb501e12 2004-06-17 devnull {
361 bb501e12 2004-06-17 devnull /*
362 bb501e12 2004-06-17 devnull 	ulong t0, t1;
363 bb501e12 2004-06-17 devnull 	int n;
364 bb501e12 2004-06-17 devnull 
365 bb501e12 2004-06-17 devnull 	t0 = nsec();
366 bb501e12 2004-06-17 devnull 	n = vtread(z, score, type, buf, nbuf);
367 bb501e12 2004-06-17 devnull 	t1 = nsec();
368 bb501e12 2004-06-17 devnull 	fprint(2, "read %V: %.6f seconds\n", score, (t1-t0)/1.e9);
369 bb501e12 2004-06-17 devnull 	return n;
370 bb501e12 2004-06-17 devnull */
371 bb501e12 2004-06-17 devnull 	return vtread(z, score, type, buf, nbuf);
372 bb501e12 2004-06-17 devnull }