| 13 |
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#include "holo.h" |
| 14 |
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|
| 15 |
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#ifndef CACHESIZE |
| 16 |
< |
#define CACHESIZE 16 /* default cache size (Mbytes, 0==inf) */ |
| 16 |
> |
#ifdef BIGMEM |
| 17 |
> |
#define CACHESIZE 17 /* default cache size (Mbytes, 0==inf) */ |
| 18 |
> |
#else |
| 19 |
> |
#define CACHESIZE 5 |
| 20 |
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#endif |
| 21 |
+ |
#endif |
| 22 |
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#ifndef FREEBEAMS |
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#define FREEBEAMS 1500 /* maximum beams to free at a time */ |
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#endif |
| 30 |
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#endif |
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#ifndef FF_DEFAULT |
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/* when to free a beam fragment */ |
| 33 |
< |
#define FF_DEFAULT (FF_ALLOC|FF_WRITE|FF_KILL) |
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> |
#define FF_DEFAULT (FF_WRITE|FF_KILL) |
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#endif |
| 35 |
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#ifndef MINDIRSEL |
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/* minimum directory seek length */ |
| 191 |
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} |
| 192 |
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|
| 193 |
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|
| 194 |
< |
markdirty(hp, i) /* mark holodeck directory position dirty */ |
| 194 |
> |
hdmarkdirty(hp, i) /* mark holodeck directory position dirty */ |
| 195 |
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register HOLO *hp; |
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int i; |
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{ |
| 203 |
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if (lseek(hp->fd, biglob(hp)->fo+(i-1)*sizeof(BEAMI), 0) < 0 |
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|| write(hp->fd, (char *)&smudge, |
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sizeof(BEAMI)) != sizeof(BEAMI)) |
| 206 |
< |
error(SYSTEM, "seek/write error in markdirty"); |
| 206 |
> |
error(SYSTEM, "seek/write error in hdmarkdirty"); |
| 207 |
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hp->dirseg[0].s = i; |
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hp->dirseg[0].n = 1; |
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return; |
| 559 |
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biglob(hp)->nrd -= bi->nrd; /* tell fragment it's free */ |
| 560 |
|
bi->nrd = 0; |
| 561 |
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bi->fo = 0L; |
| 562 |
+ |
hdmarkdirty(hp, i); /* assume we'll reallocate */ |
| 563 |
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return(1); |
| 564 |
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} |
| 565 |
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|
| 622 |
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register HOLO *hp; |
| 623 |
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register int i; |
| 624 |
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{ |
| 625 |
+ |
int fragfreed; |
| 626 |
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unsigned int4 nrays; |
| 627 |
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unsigned int n; |
| 628 |
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long nfo; |
| 634 |
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/* is current fragment OK? */ |
| 635 |
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if (hp->bl[i] == NULL || (nrays = hp->bl[i]->nrm) == hp->bi[i].nrd) |
| 636 |
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return(0); |
| 637 |
< |
if (hdfragflags&FF_WRITE && hp->bi[i].nrd) |
| 638 |
< |
hdfreefrag(hp, i); /* relinquish old fragment */ |
| 637 |
> |
/* relinquish old fragment? */ |
| 638 |
> |
fragfreed = hdfragflags&FF_WRITE && hp->bi[i].nrd && hdfreefrag(hp,i); |
| 639 |
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if (nrays) { /* get and write new fragment */ |
| 640 |
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nfo = hdallocfrag(hp->fd, nrays); |
| 641 |
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errno = 0; |
| 652 |
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hp->bi[i].fo = 0L; |
| 653 |
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biglob(hp)->nrd += nrays - hp->bi[i].nrd; |
| 654 |
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hp->bi[i].nrd = nrays; |
| 655 |
< |
markdirty(hp, i); /* section directory now out of date */ |
| 655 |
> |
if (!fragfreed) |
| 656 |
> |
hdmarkdirty(hp, i); /* need to flag dir. ent. */ |
| 657 |
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return(1); |
| 658 |
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} |
| 659 |
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|
| 674 |
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if (hdfragl[hp->fd].writerr) /* check for file error */ |
| 675 |
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return(0); |
| 676 |
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if (i == 0) { /* clear entire holodeck */ |
| 677 |
+ |
if (blglob(hp)->nrm == 0) |
| 678 |
+ |
return(0); /* already clear */ |
| 679 |
|
nchanged = 0; |
| 680 |
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for (i = nbeams(hp); i > 0; i--) |
| 681 |
|
if (hp->bl[i] != NULL) |
| 682 |
|
nchanged += hdfreebeam(hp, i); |
| 683 |
+ |
DCHECK(blglob(hp)->nrm != 0, |
| 684 |
+ |
CONSISTENCY, "bad beam count in hdfreebeam"); |
| 685 |
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return(nchanged); |
| 686 |
|
} |
| 687 |
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DCHECK(i < 1 | i > nbeams(hp), |
| 713 |
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return(nchanged); |
| 714 |
|
} |
| 715 |
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if (i == 0) { /* clobber entire holodeck */ |
| 716 |
+ |
if (biglob(hp)->nrd == 0 & blglob(hp)->nrm == 0) |
| 717 |
+ |
return(0); /* already empty */ |
| 718 |
|
nchanged = 0; |
| 719 |
+ |
nchanged = 0; |
| 720 |
|
for (i = nbeams(hp); i > 0; i--) |
| 721 |
|
if (hp->bi[i].nrd > 0 || hp->bl[i] != NULL) |
| 722 |
|
nchanged += hdkillbeam(hp, i); |
| 729 |
|
if (hp->bl[i] != NULL) { /* free memory */ |
| 730 |
|
blglob(hp)->nrm -= nchanged = hp->bl[i]->nrm; |
| 731 |
|
free((char *)hp->bl[i]); |
| 732 |
+ |
hp->bl[i] = NULL; |
| 733 |
|
} else |
| 734 |
|
nchanged = hp->bi[i].nrd; |
| 735 |
< |
if (hp->bi[i].nrd) { |
| 736 |
< |
if (hdfragflags&FF_KILL) |
| 737 |
< |
hdfreefrag(hp, i); |
| 723 |
< |
biglob(hp)->nrd -= hp->bi[i].nrd; |
| 724 |
< |
hp->bi[i].nrd = 0; /* make sure it's gone */ |
| 735 |
> |
if (hp->bi[i].nrd && !(hdfragflags&FF_KILL && hdfreefrag(hp,i))) { |
| 736 |
> |
biglob(hp)->nrd -= hp->bi[i].nrd; /* free failed */ |
| 737 |
> |
hp->bi[i].nrd = 0; |
| 738 |
|
hp->bi[i].fo = 0L; |
| 739 |
+ |
hdmarkdirty(hp, i); |
| 740 |
|
} |
| 727 |
– |
hp->bl[i] = NULL; |
| 741 |
|
return(nchanged); |
| 742 |
|
} |
| 743 |
|
|
| 831 |
|
return; |
| 832 |
|
} |
| 833 |
|
/* flush all data and free memory */ |
| 834 |
< |
hdfreebeam(hp, 0); |
| 822 |
< |
hdsync(hp, 0); |
| 834 |
> |
hdflush(hp); |
| 835 |
|
/* release fragment resources */ |
| 836 |
|
hdrelease(hp->fd); |
| 837 |
|
/* remove hp from active list */ |
