| 22 |
|
#define PCTFREE 20 /* maximum fraction to free (%) */ |
| 23 |
|
#endif |
| 24 |
|
|
| 25 |
+ |
/* define MAXFRAG if you want to limit fragment tracking memory */ |
| 26 |
+ |
|
| 27 |
|
#ifndef BSD |
| 28 |
|
#define write writebuf /* safe i/o routines */ |
| 29 |
|
#define read readbuf |
| 30 |
|
#endif |
| 31 |
|
|
| 30 |
– |
#define MAXFRAG (128*FRAGBLK) /* maximum fragments per file */ |
| 31 |
– |
|
| 32 |
|
#define FRAGBLK 64 /* number of fragments to allocate at a time */ |
| 33 |
|
|
| 34 |
|
int hdcachesize = CACHESIZE*1024*1024; /* target cache size (bytes) */ |
| 73 |
|
hdrelease(fd) /* stop tracking file fragments for some section */ |
| 74 |
|
register int fd; |
| 75 |
|
{ |
| 76 |
< |
if (fd >= nhdfrags || !hdfrag[fd].nlinks) |
| 76 |
> |
if (fd < 0 | fd >= nhdfrags || !hdfrag[fd].nlinks) |
| 77 |
|
return; |
| 78 |
|
if (!--hdfrag[fd].nlinks && hdfrag[fd].nfrags) { |
| 79 |
|
free((char *)hdfrag[fd].fi); |
| 211 |
|
|
| 212 |
|
|
| 213 |
|
long |
| 214 |
+ |
hdfilen(fd) /* return file length for fd */ |
| 215 |
+ |
int fd; |
| 216 |
+ |
{ |
| 217 |
+ |
long fpos, flen; |
| 218 |
+ |
|
| 219 |
+ |
if (fd < 0) |
| 220 |
+ |
return(-1); |
| 221 |
+ |
if (fd >= nhdfrags || !hdfrag[fd].nlinks) { |
| 222 |
+ |
if ((fpos = lseek(fd, 0L, 1)) < 0) |
| 223 |
+ |
return(-1); |
| 224 |
+ |
flen = lseek(fd, 0L, 2); |
| 225 |
+ |
lseek(fd, fpos, 0); |
| 226 |
+ |
return(flen); |
| 227 |
+ |
} |
| 228 |
+ |
return(hdfrag[fd].flen); |
| 229 |
+ |
} |
| 230 |
+ |
|
| 231 |
+ |
|
| 232 |
+ |
long |
| 233 |
|
hdfiluse(fd, all) /* compute file usage (in bytes) */ |
| 234 |
|
int fd; /* open file descriptor to check */ |
| 235 |
|
int all; /* include overhead and unflushed data */ |
| 435 |
|
nchanged += hdfreebeam(hdlist[i], 0); |
| 436 |
|
return(nchanged); |
| 437 |
|
} |
| 438 |
+ |
if (hp->fd < 0) /* check for recursive error */ |
| 439 |
+ |
return(-1); |
| 440 |
|
if (i == 0) { /* clear entire holodeck */ |
| 441 |
|
nchanged = 0; |
| 442 |
|
for (i = 1; i <= nbeams(hp); i++) |
| 455 |
|
if (lseek(hp->fd, hp->bi[i].fo, 0) < 0) |
| 456 |
|
error(SYSTEM, "cannot seek on holodeck file"); |
| 457 |
|
n = hp->bl[i]->nrm * sizeof(RAYVAL); |
| 458 |
< |
if (write(hp->fd, (char *)hdbray(hp->bl[i]), n) != n) |
| 458 |
> |
if (write(hp->fd, (char *)hdbray(hp->bl[i]), n) != n) { |
| 459 |
> |
hp->fd = -1; /* avoid recursive error */ |
| 460 |
|
error(SYSTEM, "write error in hdfreebeam"); |
| 461 |
+ |
} |
| 462 |
|
} |
| 463 |
|
blglob(hp)->nrm -= hp->bl[i]->nrm; |
| 464 |
|
free((char *)hp->bl[i]); /* free memory */ |
