1 |
< |
/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
1 |
> |
/* Copyright (c) 1999 Silicon Graphics, Inc. */ |
2 |
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|
3 |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ SGI"; |
16 |
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#define CACHESIZE 16 /* default cache size (Mbytes, 0==inf) */ |
17 |
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#endif |
18 |
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#ifndef FREEBEAMS |
19 |
< |
#define FREEBEAMS 1024 /* maximum beams to free at a time */ |
19 |
> |
#define FREEBEAMS 1500 /* maximum beams to free at a time */ |
20 |
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#endif |
21 |
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#ifndef PCTFREE |
22 |
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#define PCTFREE 15 /* maximum fraction to free (%) */ |
23 |
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#endif |
24 |
< |
#ifndef MAXFRAG |
25 |
< |
#define MAXFRAG 32767 /* maximum fragments/file to track (0==inf) */ |
24 |
> |
#ifndef MAXFRAGB |
25 |
> |
#define MAXFRAGB 16 /* fragment blocks/file to track (0==inf) */ |
26 |
|
#endif |
27 |
+ |
#ifndef FF_DEFAULT |
28 |
+ |
/* when to free a beam fragment */ |
29 |
+ |
#define FF_DEFAULT (FF_ALLOC|FF_WRITE|FF_KILL) |
30 |
+ |
#endif |
31 |
+ |
#ifndef MINDIRSEL |
32 |
+ |
/* minimum directory seek length */ |
33 |
+ |
#define MINDIRSEL (4*BUFSIZ/sizeof(BEAMI)) |
34 |
+ |
#endif |
35 |
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|
36 |
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#ifndef BSD |
37 |
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#define write writebuf /* safe i/o routines */ |
38 |
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#define read readbuf |
39 |
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#endif |
40 |
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|
41 |
< |
#define FRAGBLK 256 /* number of fragments to allocate at a time */ |
41 |
> |
#define FRAGBLK 512 /* number of fragments to allocate at a time */ |
42 |
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|
43 |
+ |
int hdfragflags = FF_DEFAULT; /* tells when to free fragments */ |
44 |
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unsigned hdcachesize = CACHESIZE*1024*1024; /* target cache size */ |
45 |
< |
unsigned long hdclock; /* clock value */ |
45 |
> |
unsigned long hdclock; /* clock value */ |
46 |
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|
47 |
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HOLO *hdlist[HDMAX+1]; /* holodeck pointers (NULL term.) */ |
48 |
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|
57 |
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static int nhdfragls; /* size of hdfragl array */ |
58 |
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|
59 |
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|
60 |
+ |
char * |
61 |
+ |
hdrealloc(ptr, siz, rout) /* (re)allocate memory, retry then error */ |
62 |
+ |
char *ptr; |
63 |
+ |
unsigned siz; |
64 |
+ |
char *rout; |
65 |
+ |
{ |
66 |
+ |
register char *newp; |
67 |
+ |
/* call malloc/realloc */ |
68 |
+ |
if (ptr == NULL) newp = (char *)malloc(siz); |
69 |
+ |
else newp = (char *)realloc(ptr, siz); |
70 |
+ |
/* check success */ |
71 |
+ |
if (newp == NULL && rout != NULL) { |
72 |
+ |
hdfreecache(25, NULL); /* free some memory */ |
73 |
+ |
errno = 0; /* retry */ |
74 |
+ |
newp = hdrealloc(ptr, siz, NULL); |
75 |
+ |
if (newp == NULL) { /* give up and report error */ |
76 |
+ |
sprintf(errmsg, "out of memory in %s", rout); |
77 |
+ |
error(SYSTEM, errmsg); |
78 |
+ |
} |
79 |
+ |
} |
80 |
+ |
return(newp); |
81 |
+ |
} |
82 |
+ |
|
83 |
+ |
|
84 |
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hdattach(fd) /* start tracking file fragments for some section */ |
85 |
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register int fd; |
86 |
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{ |
87 |
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if (fd >= nhdfragls) { |
88 |
< |
if (nhdfragls) |
89 |
< |
hdfragl = (struct fraglist *)realloc((char *)hdfragl, |
57 |
< |
(fd+1)*sizeof(struct fraglist)); |
58 |
< |
else |
59 |
< |
hdfragl = (struct fraglist *)malloc( |
60 |
< |
(fd+1)*sizeof(struct fraglist)); |
61 |
< |
if (hdfragl == NULL) |
62 |
< |
error(SYSTEM, "out of memory in hdattach"); |
88 |
> |
hdfragl = (struct fraglist *)hdrealloc((char *)hdfragl, |
89 |
> |
(fd+1)*sizeof(struct fraglist), "hdattach"); |
90 |
|
bzero((char *)(hdfragl+nhdfragls), |
91 |
|
(fd+1-nhdfragls)*sizeof(struct fraglist)); |
92 |
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nhdfragls = fd+1; |
112 |
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} |
113 |
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|
114 |
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|
88 |
– |
markdirty(hp) /* mark holodeck section directory dirty */ |
89 |
– |
register HOLO *hp; |
90 |
– |
{ |
91 |
– |
static BEAMI smudge = {0, -1}; |
92 |
– |
|
93 |
– |
if (hp->dirty) /* already marked? */ |
94 |
– |
return; |
95 |
– |
hp->dirty = 1; |
96 |
– |
if (lseek(hp->fd, biglob(hp)->fo+(nbeams(hp)-1)*sizeof(BEAMI), 0) < 0 |
97 |
– |
|| write(hp->fd, (char *)&smudge, |
98 |
– |
sizeof(BEAMI)) != sizeof(BEAMI)) |
99 |
– |
error(SYSTEM, "seek/write error in markdirty"); |
100 |
– |
} |
101 |
– |
|
102 |
– |
|
115 |
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HOLO * |
116 |
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hdinit(fd, hproto) /* initialize a holodeck section in a file */ |
117 |
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int fd; /* corresponding file descriptor */ |
138 |
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if (read(fd, (char *)(hp->bi+1), n) != n) |
139 |
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error(SYSTEM, "failure loading holodeck directory"); |
140 |
|
/* check that it's clean */ |
141 |
< |
if (hp->bi[nbeams(hp)].fo < 0) |
142 |
< |
error(WARNING, "dirty holodeck section"); |
141 |
> |
for (n = nbeams(hp); n > 0; n--) |
142 |
> |
if (hp->bi[n].fo < 0) { |
143 |
> |
hp->bi[n].fo = 0; |
144 |
> |
error(WARNING, "dirty holodeck section"); |
145 |
> |
break; |
146 |
> |
} |
147 |
|
} else { /* assume we're creating it */ |
148 |
|
if ((hp = hdalloc(hproto)) == NULL) |
149 |
|
goto memerr; |
164 |
|
biglob(hp)->nrd = rtrunc = 0; |
165 |
|
for (n = hproto == NULL ? nbeams(hp) : 0; n > 0; n--) |
166 |
|
if (hp->bi[n].nrd) |
167 |
< |
if (hp->bi[n].fo + hp->bi[n].nrd > fpos) { |
167 |
> |
if (hp->bi[n].fo+hp->bi[n].nrd*sizeof(RAYVAL) > fpos) { |
168 |
|
rtrunc += hp->bi[n].nrd; |
169 |
|
hp->bi[n].nrd = 0; |
170 |
|
} else |
187 |
|
} |
188 |
|
|
189 |
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|
190 |
+ |
markdirty(hp, i) /* mark holodeck directory position dirty */ |
191 |
+ |
register HOLO *hp; |
192 |
+ |
int i; |
193 |
+ |
{ |
194 |
+ |
static BEAMI smudge = {0, -1}; |
195 |
+ |
int mindist, minpos; |
196 |
+ |
register int j; |
197 |
+ |
|
198 |
+ |
if (!hp->dirty++) { /* write smudge first time */ |
199 |
+ |
if (lseek(hp->fd, biglob(hp)->fo+(i-1)*sizeof(BEAMI), 0) < 0 |
200 |
+ |
|| write(hp->fd, (char *)&smudge, |
201 |
+ |
sizeof(BEAMI)) != sizeof(BEAMI)) |
202 |
+ |
error(SYSTEM, "seek/write error in markdirty"); |
203 |
+ |
hp->dirseg[0].s = i; |
204 |
+ |
hp->dirseg[0].n = 1; |
205 |
+ |
return; |
206 |
+ |
} |
207 |
+ |
/* insert into segment list */ |
208 |
+ |
for (j = hp->dirty; j--; ) { |
209 |
+ |
if (!j || hp->dirseg[j-1].s < i) { |
210 |
+ |
hp->dirseg[j].s = i; |
211 |
+ |
hp->dirseg[j].n = 1; |
212 |
+ |
break; |
213 |
+ |
} |
214 |
+ |
copystruct(hp->dirseg+j, hp->dirseg+(j-1)); |
215 |
+ |
} |
216 |
+ |
do { /* check neighbors */ |
217 |
+ |
mindist = nbeams(hp); /* find closest */ |
218 |
+ |
for (j = hp->dirty; --j; ) |
219 |
+ |
if (hp->dirseg[j].s - |
220 |
+ |
(hp->dirseg[j-1].s + hp->dirseg[j-1].n) |
221 |
+ |
< mindist) { |
222 |
+ |
minpos = j; |
223 |
+ |
mindist = hp->dirseg[j].s - |
224 |
+ |
(hp->dirseg[j-1].s + hp->dirseg[j-1].n); |
225 |
+ |
} |
226 |
+ |
/* good enough? */ |
227 |
+ |
if (hp->dirty <= MAXDIRSE && mindist > MINDIRSEL) |
228 |
+ |
break; |
229 |
+ |
j = minpos - 1; /* coalesce neighbors */ |
230 |
+ |
if (hp->dirseg[j].s + hp->dirseg[j].n < |
231 |
+ |
hp->dirseg[minpos].s + hp->dirseg[minpos].n) |
232 |
+ |
hp->dirseg[j].n = hp->dirseg[minpos].s + |
233 |
+ |
hp->dirseg[minpos].n - hp->dirseg[j].s; |
234 |
+ |
hp->dirty--; |
235 |
+ |
while (++j < hp->dirty) /* close the gap */ |
236 |
+ |
copystruct(hp->dirseg+j, hp->dirseg+(j+1)); |
237 |
+ |
} while (mindist <= MINDIRSEL); |
238 |
+ |
} |
239 |
+ |
|
240 |
+ |
|
241 |
|
int |
242 |
|
hdsync(hp, all) /* update beams and directory on disk */ |
243 |
|
register HOLO *hp; |
257 |
|
hdsyncbeam(hp, j); |
258 |
|
if (!hp->dirty) /* directory clean? */ |
259 |
|
return(0); |
260 |
< |
errno = 0; |
261 |
< |
if (lseek(hp->fd, biglob(hp)->fo, 0) < 0) |
262 |
< |
error(SYSTEM, "cannot seek on holodeck file"); |
263 |
< |
n = nbeams(hp)*sizeof(BEAMI); |
264 |
< |
if (write(hp->fd, (char *)(hp->bi+1), n) != n) |
265 |
< |
error(SYSTEM, "cannot update holodeck section directory"); |
266 |
< |
hp->dirty = 0; |
260 |
> |
errno = 0; /* write dirty segments */ |
261 |
> |
for (j = 0; j < hp->dirty; j++) { |
262 |
> |
if (lseek(hp->fd, biglob(hp)->fo + |
263 |
> |
(hp->dirseg[j].s-1)*sizeof(BEAMI), 0) < 0) |
264 |
> |
error(SYSTEM, "cannot seek on holodeck file"); |
265 |
> |
n = hp->dirseg[j].n * sizeof(BEAMI); |
266 |
> |
if (write(hp->fd, (char *)(hp->bi+hp->dirseg[j].s), n) != n) |
267 |
> |
error(SYSTEM, "cannot update section directory"); |
268 |
> |
} |
269 |
> |
hp->dirty = 0; /* all clean */ |
270 |
|
return(1); |
271 |
|
} |
272 |
|
|
354 |
|
RAYVAL *p; |
355 |
|
int n; |
356 |
|
|
357 |
< |
if (nr <= 0) |
358 |
< |
return(NULL); |
359 |
< |
if (i < 1 | i > nbeams(hp)) |
290 |
< |
error(CONSISTENCY, "bad beam index given to hdnewrays"); |
357 |
> |
if (nr <= 0) return(NULL); |
358 |
> |
CHECK(i < 1 | i > nbeams(hp), |
359 |
> |
CONSISTENCY, "bad beam index given to hdnewrays"); |
360 |
|
if (hp->bl[i] != NULL) |
361 |
|
hp->bl[i]->tick = hdclock; /* preempt swap */ |
362 |
|
if (hdcachesize > 0 && hdmemuse(0) >= hdcachesize) |
363 |
|
hdfreecache(PCTFREE, NULL); /* free some space */ |
295 |
– |
errno = 0; |
364 |
|
if (hp->bl[i] == NULL) { /* allocate (and load) */ |
365 |
|
n = hp->bi[i].nrd + nr; |
366 |
< |
if ((hp->bl[i] = (BEAM *)malloc(hdbsiz(n))) == NULL) |
299 |
< |
goto memerr; |
366 |
> |
hp->bl[i] = (BEAM *)hdrealloc(NULL, hdbsiz(n), "hdnewrays"); |
367 |
|
blglob(hp)->nrm += n; |
368 |
< |
if (n = hp->bl[i]->nrm = hp->bi[i].nrd) { |
368 |
> |
if ((n = hp->bl[i]->nrm = hp->bi[i].nrd)) { |
369 |
> |
errno = 0; |
370 |
|
if (lseek(hp->fd, hp->bi[i].fo, 0) < 0) |
371 |
|
error(SYSTEM, "seek error on holodeck file"); |
372 |
|
n *= sizeof(RAYVAL); |
375 |
|
"error reading beam from holodeck file"); |
376 |
|
} |
377 |
|
} else { /* just grow in memory */ |
378 |
< |
hp->bl[i] = (BEAM *)realloc( (char *)hp->bl[i], |
379 |
< |
hdbsiz(hp->bl[i]->nrm + nr) ); |
312 |
< |
if (hp->bl[i] == NULL) |
313 |
< |
goto memerr; |
378 |
> |
hp->bl[i] = (BEAM *)hdrealloc((char *)hp->bl[i], |
379 |
> |
hdbsiz(hp->bl[i]->nrm + nr), "hdnewrays"); |
380 |
|
blglob(hp)->nrm += nr; |
381 |
|
} |
382 |
+ |
if (hdfragflags&FF_ALLOC && hp->bi[i].nrd) |
383 |
+ |
hdfreefrag(hp, i); /* relinquish old fragment */ |
384 |
|
p = hdbray(hp->bl[i]) + hp->bl[i]->nrm; |
385 |
|
hp->bl[i]->nrm += nr; /* update in-core structure */ |
386 |
|
bzero((char *)p, nr*sizeof(RAYVAL)); |
387 |
< |
hp->bl[i]->tick = hdclock; /* update LRU clock */ |
320 |
< |
blglob(hp)->tick = hdclock++; |
387 |
> |
blglob(hp)->tick = hp->bl[i]->tick = hdclock++; /* update LRU clock */ |
388 |
|
return(p); /* point to new rays */ |
322 |
– |
memerr: |
323 |
– |
error(SYSTEM, "out of memory in hdnewrays"); |
389 |
|
} |
390 |
|
|
391 |
|
|
396 |
|
{ |
397 |
|
register int n; |
398 |
|
|
399 |
< |
if (i < 1 | i > nbeams(hp)) |
400 |
< |
error(CONSISTENCY, "bad beam index given to hdgetbeam"); |
399 |
> |
CHECK(i < 1 | i > nbeams(hp), |
400 |
> |
CONSISTENCY, "bad beam index given to hdgetbeam"); |
401 |
|
if (hp->bl[i] == NULL) { /* load from disk */ |
402 |
|
if (!(n = hp->bi[i].nrd)) |
403 |
|
return(NULL); |
404 |
|
if (hdcachesize > 0 && hdmemuse(0) >= hdcachesize) |
405 |
|
hdfreecache(PCTFREE, NULL); /* get free space */ |
406 |
< |
errno = 0; |
342 |
< |
if ((hp->bl[i] = (BEAM *)malloc(hdbsiz(n))) == NULL) |
343 |
< |
error(SYSTEM, "cannot allocate memory for beam"); |
406 |
> |
hp->bl[i] = (BEAM *)hdrealloc(NULL, hdbsiz(n), "hdgetbeam"); |
407 |
|
blglob(hp)->nrm += hp->bl[i]->nrm = n; |
408 |
+ |
errno = 0; |
409 |
|
if (lseek(hp->fd, hp->bi[i].fo, 0) < 0) |
410 |
|
error(SYSTEM, "seek error on holodeck file"); |
411 |
|
n *= sizeof(RAYVAL); |
412 |
|
if (read(hp->fd, (char *)hdbray(hp->bl[i]), n) != n) |
413 |
|
error(SYSTEM, "error reading beam from holodeck file"); |
414 |
+ |
if (hdfragflags&FF_READ) |
415 |
+ |
hdfreefrag(hp, i); /* relinquish old frag. */ |
416 |
|
} |
417 |
< |
hp->bl[i]->tick = hdclock; /* update LRU clock */ |
352 |
< |
blglob(hp)->tick = hdclock++; |
417 |
> |
blglob(hp)->tick = hp->bl[i]->tick = hdclock++; /* update LRU clock */ |
418 |
|
return(hp->bl[i]); |
419 |
|
} |
420 |
|
|
448 |
|
register BEAM *bp; |
449 |
|
register int i; |
450 |
|
/* precheck consistency */ |
451 |
+ |
if (n <= 0) return; |
452 |
|
for (i = n; i--; ) |
453 |
< |
if (hb[i].h == NULL || hb[i].b < 1 | hb[i].b > nbeams(hb[i].h)) |
453 |
> |
if (hb[i].h==NULL || hb[i].b<1 | hb[i].b>nbeams(hb[i].h)) |
454 |
|
error(CONSISTENCY, "bad beam in hdloadbeams"); |
455 |
|
/* sort list for optimal access */ |
456 |
|
qsort((char *)hb, n, sizeof(HDBEAMI), hdfilord); |
483 |
|
} |
484 |
|
|
485 |
|
|
486 |
< |
hdfreefrag(fd, bi) /* free a file fragment */ |
487 |
< |
int fd; |
488 |
< |
register BEAMI *bi; |
486 |
> |
int |
487 |
> |
hdfreefrag(hp, i) /* free a file fragment */ |
488 |
> |
HOLO *hp; |
489 |
> |
int i; |
490 |
|
{ |
491 |
+ |
register BEAMI *bi = &hp->bi[i]; |
492 |
|
register struct fraglist *f; |
493 |
|
register int j, k; |
494 |
|
|
495 |
< |
if (bi->nrd == 0) |
496 |
< |
return; |
497 |
< |
#ifdef DEBUG |
498 |
< |
if (fd < 0 | fd >= nhdfragls || !hdfragl[fd].nlinks) |
499 |
< |
error(CONSISTENCY, "bad file descriptor in hdfreefrag"); |
432 |
< |
#endif |
433 |
< |
f = &hdfragl[fd]; |
495 |
> |
if (bi->nrd <= 0) |
496 |
> |
return(0); |
497 |
> |
DCHECK(hp->fd < 0 | hp->fd >= nhdfragls || !hdfragl[hp->fd].nlinks, |
498 |
> |
CONSISTENCY, "bad file descriptor in hdfreefrag"); |
499 |
> |
f = &hdfragl[hp->fd]; |
500 |
|
if (f->nfrags % FRAGBLK == 0) { /* delete empty remnants */ |
501 |
|
for (j = k = 0; k < f->nfrags; j++, k++) { |
502 |
|
while (f->fi[k].nrd == 0) |
509 |
|
f->nfrags = j; |
510 |
|
} |
511 |
|
j = f->nfrags++; /* allocate a slot in free list */ |
512 |
< |
#if MAXFRAG |
513 |
< |
if (j >= MAXFRAG-1) |
514 |
< |
f->nfrags--; |
512 |
> |
#if MAXFRAGB |
513 |
> |
if (j >= MAXFRAGB*FRAGBLK) { |
514 |
> |
f->nfrags = j--; /* stop list growth */ |
515 |
> |
if (bi->nrd <= f->fi[j].nrd) |
516 |
> |
return(0); /* new one no better than discard */ |
517 |
> |
} |
518 |
|
#endif |
519 |
< |
if (j % FRAGBLK == 0) { /* more free list space */ |
519 |
> |
if (j % FRAGBLK == 0) { /* more (or less) free list space */ |
520 |
> |
register BEAMI *newp; |
521 |
|
if (f->fi == NULL) |
522 |
< |
f->fi = (BEAMI *)malloc(FRAGBLK*sizeof(BEAMI)); |
522 |
> |
newp = (BEAMI *)malloc((j+FRAGBLK)*sizeof(BEAMI)); |
523 |
|
else |
524 |
< |
f->fi = (BEAMI *)realloc((char *)f->fi, |
524 |
> |
newp = (BEAMI *)realloc((char *)f->fi, |
525 |
|
(j+FRAGBLK)*sizeof(BEAMI)); |
526 |
< |
if (f->fi == NULL) |
527 |
< |
error(SYSTEM, "out of memory in hdfreefrag"); |
526 |
> |
if (newp == NULL) { |
527 |
> |
f->nfrags--; /* graceful failure */ |
528 |
> |
return(0); |
529 |
> |
} |
530 |
> |
f->fi = newp; |
531 |
|
} |
532 |
|
for ( ; ; j--) { /* insert in descending list */ |
533 |
|
if (!j || bi->fo < f->fi[j-1].fo) { |
552 |
|
} |
553 |
|
break; |
554 |
|
} |
555 |
+ |
biglob(hp)->nrd -= bi->nrd; /* tell fragment it's free */ |
556 |
+ |
bi->nrd = 0; |
557 |
+ |
bi->fo = 0L; |
558 |
+ |
return(1); |
559 |
|
} |
560 |
|
|
561 |
|
|
562 |
+ |
int |
563 |
+ |
hdfragOK(fd, listlen, listsiz) /* get fragment list status for file */ |
564 |
+ |
int fd; |
565 |
+ |
int *listlen; |
566 |
+ |
register int4 *listsiz; |
567 |
+ |
{ |
568 |
+ |
register struct fraglist *f; |
569 |
+ |
register int i; |
570 |
+ |
|
571 |
+ |
if (fd < 0 | fd >= nhdfragls || !(f = &hdfragl[fd])->nlinks) |
572 |
+ |
return(0); /* listless */ |
573 |
+ |
if (listlen != NULL) |
574 |
+ |
*listlen = f->nfrags; |
575 |
+ |
if (listsiz != NULL) |
576 |
+ |
for (i = f->nfrags, *listsiz = 0; i--; ) |
577 |
+ |
*listsiz += f->fi[i].nrd; |
578 |
+ |
#if MAXFRAGB |
579 |
+ |
return(f->nfrags < MAXFRAGB*FRAGBLK); |
580 |
+ |
#else |
581 |
+ |
return(1); /* list never fills up */ |
582 |
+ |
#endif |
583 |
+ |
} |
584 |
+ |
|
585 |
+ |
|
586 |
|
long |
587 |
|
hdallocfrag(fd, nrays) /* allocate a file fragment */ |
588 |
|
int fd; |
589 |
|
unsigned int4 nrays; |
590 |
|
{ |
591 |
|
register struct fraglist *f; |
592 |
< |
register int j, k; |
592 |
> |
register int j; |
593 |
|
long nfo; |
594 |
|
|
595 |
|
if (nrays == 0) |
596 |
|
return(-1L); |
597 |
< |
#ifdef DEBUG |
598 |
< |
if (fd < 0 | fd >= nhdfragls || !hdfragl[fd].nlinks) |
498 |
< |
error(CONSISTENCY, "bad file descriptor in hdallocfrag"); |
499 |
< |
#endif |
597 |
> |
DCHECK(fd < 0 | fd >= nhdfragls || !hdfragl[fd].nlinks, |
598 |
> |
CONSISTENCY, "bad file descriptor in hdallocfrag"); |
599 |
|
f = &hdfragl[fd]; |
600 |
< |
k = -1; /* find closest-sized fragment */ |
601 |
< |
for (j = f->nfrags; j-- > 0; ) |
602 |
< |
if (f->fi[j].nrd >= nrays && |
603 |
< |
(k < 0 || f->fi[j].nrd < f->fi[k].nrd)) |
505 |
< |
if (f->fi[k=j].nrd == nrays) |
506 |
< |
break; |
507 |
< |
if (k < 0) { /* no fragment -- extend file */ |
600 |
> |
for (j = f->nfrags; j-- > 0; ) /* first fit algorithm */ |
601 |
> |
if (f->fi[j].nrd >= nrays) |
602 |
> |
break; |
603 |
> |
if (j < 0) { /* no fragment -- extend file */ |
604 |
|
nfo = f->flen; |
605 |
|
f->flen += nrays*sizeof(RAYVAL); |
606 |
|
} else { /* else use fragment */ |
607 |
< |
nfo = f->fi[k].fo; |
608 |
< |
f->fi[k].fo += nrays*sizeof(RAYVAL); |
609 |
< |
f->fi[k].nrd -= nrays; |
607 |
> |
nfo = f->fi[j].fo; |
608 |
> |
f->fi[j].fo += nrays*sizeof(RAYVAL); |
609 |
> |
f->fi[j].nrd -= nrays; |
610 |
|
} |
611 |
|
return(nfo); |
612 |
|
} |
623 |
|
/* check file status */ |
624 |
|
if (hdfragl[hp->fd].writerr) |
625 |
|
return(-1); |
626 |
< |
#ifdef DEBUG |
627 |
< |
if (i < 1 | i > nbeams(hp)) |
532 |
< |
error(CONSISTENCY, "bad beam index in hdsyncbeam"); |
533 |
< |
#endif |
626 |
> |
DCHECK(i < 1 | i > nbeams(hp), |
627 |
> |
CONSISTENCY, "bad beam index in hdsyncbeam"); |
628 |
|
/* is current fragment OK? */ |
629 |
|
if (hp->bl[i] == NULL || (nrays = hp->bl[i]->nrm) == hp->bi[i].nrd) |
630 |
|
return(0); |
631 |
< |
if (hp->bi[i].nrd) /* relinquish old fragment */ |
632 |
< |
hdfreefrag(hp->fd, &hp->bi[i]); |
631 |
> |
if (hdfragflags&FF_WRITE && hp->bi[i].nrd) |
632 |
> |
hdfreefrag(hp, i); /* relinquish old fragment */ |
633 |
|
if (nrays) { /* get and write new fragment */ |
634 |
|
nfo = hdallocfrag(hp->fd, nrays); |
635 |
|
errno = 0; |
646 |
|
hp->bi[i].fo = 0L; |
647 |
|
biglob(hp)->nrd += nrays - hp->bi[i].nrd; |
648 |
|
hp->bi[i].nrd = nrays; |
649 |
< |
markdirty(hp); /* section directory now out of date */ |
649 |
> |
markdirty(hp, i); /* section directory now out of date */ |
650 |
|
return(1); |
651 |
|
} |
652 |
|
|
673 |
|
nchanged += hdfreebeam(hp, i); |
674 |
|
return(nchanged); |
675 |
|
} |
676 |
< |
#ifdef DEBUG |
677 |
< |
if (i < 1 | i > nbeams(hp)) |
584 |
< |
error(CONSISTENCY, "bad beam index to hdfreebeam"); |
585 |
< |
#endif |
676 |
> |
DCHECK(i < 1 | i > nbeams(hp), |
677 |
> |
CONSISTENCY, "bad beam index to hdfreebeam"); |
678 |
|
if (hp->bl[i] == NULL) |
679 |
|
return(0); |
680 |
|
/* check for additions */ |
693 |
|
register HOLO *hp; |
694 |
|
register int i; |
695 |
|
{ |
604 |
– |
static BEAM emptybeam; |
696 |
|
int nchanged; |
697 |
|
|
698 |
|
if (hp == NULL) { /* clobber all holodecks */ |
706 |
|
for (i = nbeams(hp); i > 0; i--) |
707 |
|
if (hp->bi[i].nrd > 0 || hp->bl[i] != NULL) |
708 |
|
nchanged += hdkillbeam(hp, i); |
709 |
< |
#ifdef DEBUG |
710 |
< |
if (biglob(hp)->nrd != 0 | blglob(hp)->nrm != 0) |
620 |
< |
error(CONSISTENCY, "bad beam count in hdkillbeam"); |
621 |
< |
#endif |
709 |
> |
DCHECK(biglob(hp)->nrd != 0 | blglob(hp)->nrm != 0, |
710 |
> |
CONSISTENCY, "bad beam count in hdkillbeam"); |
711 |
|
return(nchanged); |
712 |
|
} |
713 |
< |
#ifdef DEBUG |
714 |
< |
if (i < 1 | i > nbeams(hp)) |
626 |
< |
error(CONSISTENCY, "bad beam index to hdkillbeam"); |
627 |
< |
#endif |
713 |
> |
DCHECK(i < 1 | i > nbeams(hp), |
714 |
> |
CONSISTENCY, "bad beam index to hdkillbeam"); |
715 |
|
if (hp->bl[i] != NULL) { /* free memory */ |
716 |
|
blglob(hp)->nrm -= nchanged = hp->bl[i]->nrm; |
717 |
|
free((char *)hp->bl[i]); |
718 |
|
} else |
719 |
|
nchanged = hp->bi[i].nrd; |
720 |
< |
if (hp->bi[i].nrd) { /* free file fragment */ |
721 |
< |
hp->bl[i] = &emptybeam; |
722 |
< |
hdsyncbeam(hp, i); |
720 |
> |
if (hp->bi[i].nrd) { |
721 |
> |
if (hdfragflags&FF_KILL) |
722 |
> |
hdfreefrag(hp, i); |
723 |
> |
biglob(hp)->nrd -= hp->bi[i].nrd; |
724 |
> |
hp->bi[i].nrd = 0; /* make sure it's gone */ |
725 |
> |
hp->bi[i].fo = 0L; |
726 |
|
} |
727 |
|
hp->bl[i] = NULL; |
728 |
|
return(nchanged); |
770 |
|
int freetarget; |
771 |
|
int n; |
772 |
|
register int i; |
773 |
+ |
#ifdef DEBUG |
774 |
+ |
unsigned membefore; |
775 |
+ |
|
776 |
+ |
membefore = hdmemuse(0); |
777 |
+ |
#endif |
778 |
|
/* compute free target */ |
779 |
|
freetarget = (honly != NULL) ? blglob(honly)->nrm : |
780 |
|
hdmemuse(0)/sizeof(RAYVAL) ; |
795 |
|
break; |
796 |
|
} |
797 |
|
hdsync(honly, 0); /* synchronize directories as necessary */ |
798 |
+ |
#ifdef DEBUG |
799 |
+ |
sprintf(errmsg, |
800 |
+ |
"%dK before, %dK after hdfreecache (%dK total), %d rays short\n", |
801 |
+ |
membefore>>10, hdmemuse(0)>>10, hdmemuse(1)>>10, freetarget); |
802 |
+ |
wputs(errmsg); |
803 |
+ |
#endif |
804 |
|
return(-freetarget); /* return how far past goal we went */ |
805 |
|
} |
806 |
|
|
813 |
|
if (hp == NULL) { /* NULL means clean up everything */ |
814 |
|
while (hdlist[0] != NULL) |
815 |
|
hddone(hdlist[0]); |
816 |
+ |
free((char *)hdfragl); |
817 |
+ |
hdfragl = NULL; nhdfragls = 0; |
818 |
|
return; |
819 |
|
} |
820 |
|
/* flush all data and free memory */ |
821 |
< |
hdflush(hp); |
821 |
> |
hdfreebeam(hp, 0); |
822 |
> |
hdsync(hp, 0); |
823 |
|
/* release fragment resources */ |
824 |
|
hdrelease(hp->fd); |
825 |
|
/* remove hp from active list */ |