| 48 |
|
static int nhdfragls; /* size of hdfragl array */ |
| 49 |
|
|
| 50 |
|
|
| 51 |
+ |
char * |
| 52 |
+ |
hdrealloc(ptr, siz, rout) /* (re)allocate memory, retry then error */ |
| 53 |
+ |
char *ptr; |
| 54 |
+ |
unsigned siz; |
| 55 |
+ |
char *rout; |
| 56 |
+ |
{ |
| 57 |
+ |
register char *newp; |
| 58 |
+ |
/* call malloc/realloc */ |
| 59 |
+ |
if (ptr == NULL) newp = (char *)malloc(siz); |
| 60 |
+ |
else newp = (char *)realloc(ptr, siz); |
| 61 |
+ |
/* check success */ |
| 62 |
+ |
if (newp == NULL && rout != NULL) { |
| 63 |
+ |
hdfreecache(25, NULL); /* free some memory */ |
| 64 |
+ |
errno = 0; /* retry */ |
| 65 |
+ |
newp = hdrealloc(ptr, siz, NULL); |
| 66 |
+ |
if (newp == NULL) { /* give up and report error */ |
| 67 |
+ |
sprintf(errmsg, "out of memory in %s", rout); |
| 68 |
+ |
error(SYSTEM, errmsg); |
| 69 |
+ |
} |
| 70 |
+ |
} |
| 71 |
+ |
return(newp); |
| 72 |
+ |
} |
| 73 |
+ |
|
| 74 |
+ |
|
| 75 |
|
hdattach(fd) /* start tracking file fragments for some section */ |
| 76 |
|
register int fd; |
| 77 |
|
{ |
| 78 |
|
if (fd >= nhdfragls) { |
| 79 |
< |
if (nhdfragls) |
| 80 |
< |
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"); |
| 79 |
> |
hdfragl = (struct fraglist *)hdrealloc((char *)hdfragl, |
| 80 |
> |
(fd+1)*sizeof(struct fraglist), "hdattach"); |
| 81 |
|
bzero((char *)(hdfragl+nhdfragls), |
| 82 |
|
(fd+1-nhdfragls)*sizeof(struct fraglist)); |
| 83 |
|
nhdfragls = fd+1; |
| 166 |
|
biglob(hp)->nrd = rtrunc = 0; |
| 167 |
|
for (n = hproto == NULL ? nbeams(hp) : 0; n > 0; n--) |
| 168 |
|
if (hp->bi[n].nrd) |
| 169 |
< |
if (hp->bi[n].fo + hp->bi[n].nrd > fpos) { |
| 169 |
> |
if (hp->bi[n].fo+hp->bi[n].nrd*sizeof(RAYVAL) > fpos) { |
| 170 |
|
rtrunc += hp->bi[n].nrd; |
| 171 |
|
hp->bi[n].nrd = 0; |
| 172 |
|
} else |
| 310 |
|
hp->bl[i]->tick = hdclock; /* preempt swap */ |
| 311 |
|
if (hdcachesize > 0 && hdmemuse(0) >= hdcachesize) |
| 312 |
|
hdfreecache(PCTFREE, NULL); /* free some space */ |
| 295 |
– |
errno = 0; |
| 313 |
|
if (hp->bl[i] == NULL) { /* allocate (and load) */ |
| 314 |
|
n = hp->bi[i].nrd + nr; |
| 315 |
< |
if ((hp->bl[i] = (BEAM *)malloc(hdbsiz(n))) == NULL) |
| 299 |
< |
goto memerr; |
| 315 |
> |
hp->bl[i] = (BEAM *)hdrealloc(NULL, hdbsiz(n), "hdnewrays"); |
| 316 |
|
blglob(hp)->nrm += n; |
| 317 |
|
if (n = hp->bl[i]->nrm = hp->bi[i].nrd) { |
| 318 |
+ |
errno = 0; |
| 319 |
|
if (lseek(hp->fd, hp->bi[i].fo, 0) < 0) |
| 320 |
|
error(SYSTEM, "seek error on holodeck file"); |
| 321 |
|
n *= sizeof(RAYVAL); |
| 324 |
|
"error reading beam from holodeck file"); |
| 325 |
|
} |
| 326 |
|
} else { /* just grow in memory */ |
| 327 |
< |
hp->bl[i] = (BEAM *)realloc( (char *)hp->bl[i], |
| 328 |
< |
hdbsiz(hp->bl[i]->nrm + nr) ); |
| 312 |
< |
if (hp->bl[i] == NULL) |
| 313 |
< |
goto memerr; |
| 327 |
> |
hp->bl[i] = (BEAM *)hdrealloc((char *)hp->bl[i], |
| 328 |
> |
hdbsiz(hp->bl[i]->nrm + nr), "hdnewrays"); |
| 329 |
|
blglob(hp)->nrm += nr; |
| 330 |
|
} |
| 331 |
|
p = hdbray(hp->bl[i]) + hp->bl[i]->nrm; |
| 333 |
|
bzero((char *)p, nr*sizeof(RAYVAL)); |
| 334 |
|
blglob(hp)->tick = hp->bl[i]->tick = hdclock++; /* update LRU clock */ |
| 335 |
|
return(p); /* point to new rays */ |
| 321 |
– |
memerr: |
| 322 |
– |
error(SYSTEM, "out of memory in hdnewrays"); |
| 336 |
|
} |
| 337 |
|
|
| 338 |
|
|
| 350 |
|
return(NULL); |
| 351 |
|
if (hdcachesize > 0 && hdmemuse(0) >= hdcachesize) |
| 352 |
|
hdfreecache(PCTFREE, NULL); /* get free space */ |
| 353 |
< |
errno = 0; |
| 341 |
< |
if ((hp->bl[i] = (BEAM *)malloc(hdbsiz(n))) == NULL) |
| 342 |
< |
error(SYSTEM, "cannot allocate memory for beam"); |
| 353 |
> |
hp->bl[i] = (BEAM *)hdrealloc(NULL, hdbsiz(n), "hdgetbeam"); |
| 354 |
|
blglob(hp)->nrm += hp->bl[i]->nrm = n; |
| 355 |
+ |
errno = 0; |
| 356 |
|
if (lseek(hp->fd, hp->bi[i].fo, 0) < 0) |
| 357 |
|
error(SYSTEM, "seek error on holodeck file"); |
| 358 |
|
n *= sizeof(RAYVAL); |
| 459 |
|
f->nfrags--; |
| 460 |
|
#endif |
| 461 |
|
if (j % FRAGBLK == 0) { /* more free list space */ |
| 462 |
+ |
register BEAMI *newp; |
| 463 |
|
if (f->fi == NULL) |
| 464 |
< |
f->fi = (BEAMI *)malloc(FRAGBLK*sizeof(BEAMI)); |
| 464 |
> |
newp = (BEAMI *)malloc((j+FRAGBLK)*sizeof(BEAMI)); |
| 465 |
|
else |
| 466 |
< |
f->fi = (BEAMI *)realloc((char *)f->fi, |
| 466 |
> |
newp = (BEAMI *)realloc((char *)f->fi, |
| 467 |
|
(j+FRAGBLK)*sizeof(BEAMI)); |
| 468 |
< |
if (f->fi == NULL) |
| 469 |
< |
error(SYSTEM, "out of memory in hdfreefrag"); |
| 468 |
> |
if (newp == NULL) { |
| 469 |
> |
f->nfrags--; /* graceful failure */ |
| 470 |
> |
return; |
| 471 |
> |
} |
| 472 |
> |
f->fi = newp; |
| 473 |
|
} |
| 474 |
|
for ( ; ; j--) { /* insert in descending list */ |
| 475 |
|
if (!j || bi->fo < f->fi[j-1].fo) { |
| 743 |
|
return; |
| 744 |
|
} |
| 745 |
|
/* flush all data and free memory */ |
| 746 |
< |
hdflush(hp); |
| 746 |
> |
hdfreebeam(hp, 0); |
| 747 |
> |
hdsync(hp, 0); |
| 748 |
|
/* release fragment resources */ |
| 749 |
|
hdrelease(hp->fd); |
| 750 |
|
/* remove hp from active list */ |
