| 9 |
|
*/ |
| 10 |
|
|
| 11 |
|
#include "rholo.h" |
| 12 |
+ |
#include <sys/types.h> |
| 13 |
|
|
| 14 |
+ |
#ifndef NFRAG2CHUNK |
| 15 |
+ |
#define NFRAG2CHUNK 4096 /* number of fragments to start chunking */ |
| 16 |
+ |
#endif |
| 17 |
+ |
|
| 18 |
+ |
#ifndef abs |
| 19 |
|
#define abs(x) ((x) > 0 ? (x) : -(x)) |
| 20 |
+ |
#endif |
| 21 |
+ |
#ifndef sgn |
| 22 |
|
#define sgn(x) ((x) > 0 ? 1 : (x) < 0 ? -1 : 0) |
| 23 |
+ |
#endif |
| 24 |
|
|
| 25 |
+ |
#define rchunk(n) (((n)+(RPACKSIZ/2))/RPACKSIZ) |
| 26 |
+ |
|
| 27 |
+ |
extern time_t time(); |
| 28 |
+ |
|
| 29 |
|
static PACKHEAD *complist=NULL; /* list of beams to compute */ |
| 30 |
|
static int complen=0; /* length of complist */ |
| 31 |
|
static int listpos=0; /* current list position for next_packet */ |
| 32 |
|
static int lastin= -1; /* last ordered position in list */ |
| 33 |
+ |
static int chunky=0; /* clump beams together on disk */ |
| 34 |
|
|
| 35 |
|
|
| 36 |
|
int |
| 37 |
< |
beamcmp(b0, b1) /* comparison for descending compute order */ |
| 37 |
> |
beamcmp(b0, b1) /* comparison for compute order */ |
| 38 |
|
register PACKHEAD *b0, *b1; |
| 39 |
|
{ |
| 40 |
< |
return( b1->nr*(b0->nc+1) - b0->nr*(b1->nc+1) ); |
| 40 |
> |
BEAMI *bip0, *bip1; |
| 41 |
> |
register long c; |
| 42 |
> |
/* first check desired quantities */ |
| 43 |
> |
if (chunky) |
| 44 |
> |
c = rchunk(b1->nr)*(rchunk(b0->nc)+1L) - |
| 45 |
> |
rchunk(b0->nr)*(rchunk(b1->nc)+1L); |
| 46 |
> |
else |
| 47 |
> |
c = b1->nr*(b0->nc+1L) - b0->nr*(b1->nc+1L); |
| 48 |
> |
if (c > 0) return(1); |
| 49 |
> |
if (c < 0) return(-1); |
| 50 |
> |
/* only one file, so skip the following: */ |
| 51 |
> |
#if 0 |
| 52 |
> |
/* next, check file descriptors */ |
| 53 |
> |
c = hdlist[b0->hd]->fd - hdlist[b1->hd]->fd; |
| 54 |
> |
if (c) return(c); |
| 55 |
> |
#endif |
| 56 |
> |
/* finally, check file positions */ |
| 57 |
> |
bip0 = &hdlist[b0->hd]->bi[b0->bi]; |
| 58 |
> |
bip1 = &hdlist[b1->hd]->bi[b1->bi]; |
| 59 |
> |
/* put diskless beams last */ |
| 60 |
> |
if (!bip0->nrd) |
| 61 |
> |
return(bip1->nrd > 0); |
| 62 |
> |
if (!bip1->nrd) |
| 63 |
> |
return(-1); |
| 64 |
> |
c = bip0->fo - bip1->fo; |
| 65 |
> |
return(c < 0 ? -1 : c > 0); |
| 66 |
|
} |
| 67 |
|
|
| 68 |
|
|
| 69 |
|
int |
| 70 |
< |
dispbeam(b, hp, bi) /* display a holodeck beam */ |
| 70 |
> |
beamidcmp(b0, b1) /* comparison for beam searching */ |
| 71 |
> |
register PACKHEAD *b0, *b1; |
| 72 |
> |
{ |
| 73 |
> |
register int c = b0->hd - b1->hd; |
| 74 |
> |
|
| 75 |
> |
if (c) return(c); |
| 76 |
> |
return(b0->bi - b1->bi); |
| 77 |
> |
} |
| 78 |
> |
|
| 79 |
> |
|
| 80 |
> |
int |
| 81 |
> |
dispbeam(b, hb) /* display a holodeck beam */ |
| 82 |
|
register BEAM *b; |
| 83 |
< |
HOLO *hp; |
| 34 |
< |
int bi; |
| 83 |
> |
register HDBEAMI *hb; |
| 84 |
|
{ |
| 85 |
|
static int n = 0; |
| 86 |
|
static PACKHEAD *p = NULL; |
| 97 |
|
/* assign packet fields */ |
| 98 |
|
bcopy((char *)hdbray(b), (char *)packra(p), b->nrm*sizeof(RAYVAL)); |
| 99 |
|
p->nr = p->nc = b->nrm; |
| 100 |
< |
for (p->hd = 0; hdlist[p->hd] != hp; p->hd++) |
| 100 |
> |
for (p->hd = 0; hdlist[p->hd] != hb->h; p->hd++) |
| 101 |
|
if (hdlist[p->hd] == NULL) |
| 102 |
|
error(CONSISTENCY, "unregistered holodeck in dispbeam"); |
| 103 |
< |
p->bi = bi; |
| 103 |
> |
p->bi = hb->b; |
| 104 |
|
disp_packet(p); /* display it */ |
| 105 |
|
} |
| 106 |
|
|
| 107 |
|
|
| 108 |
|
bundle_set(op, clist, nents) /* bundle set operation */ |
| 109 |
|
int op; |
| 110 |
< |
register PACKHEAD *clist; |
| 110 |
> |
PACKHEAD *clist; |
| 111 |
|
int nents; |
| 112 |
|
{ |
| 113 |
< |
register int i, n; |
| 114 |
< |
|
| 113 |
> |
int oldnr, n; |
| 114 |
> |
HDBEAMI *hbarr; |
| 115 |
> |
register PACKHEAD *csm; |
| 116 |
> |
register int i; |
| 117 |
> |
/* search for common members */ |
| 118 |
> |
for (csm = clist+nents; csm-- > clist; ) |
| 119 |
> |
csm->nc = -1; |
| 120 |
> |
qsort((char *)clist, nents, sizeof(PACKHEAD), beamidcmp); |
| 121 |
> |
for (i = 0; i < complen; i++) { |
| 122 |
> |
csm = (PACKHEAD *)bsearch((char *)(complist+i), (char *)clist, |
| 123 |
> |
nents, sizeof(PACKHEAD), beamidcmp); |
| 124 |
> |
if (csm == NULL) |
| 125 |
> |
continue; |
| 126 |
> |
oldnr = complist[i].nr; |
| 127 |
> |
csm->nc = complist[i].nc; |
| 128 |
> |
switch (op) { |
| 129 |
> |
case BS_ADD: /* add to count */ |
| 130 |
> |
complist[i].nr += csm->nr; |
| 131 |
> |
csm->nr = 0; |
| 132 |
> |
break; |
| 133 |
> |
case BS_ADJ: /* reset count */ |
| 134 |
> |
complist[i].nr = csm->nr; |
| 135 |
> |
csm->nr = 0; |
| 136 |
> |
break; |
| 137 |
> |
case BS_DEL: /* delete count */ |
| 138 |
> |
if (csm->nr == 0 || csm->nr >= complist[i].nr) |
| 139 |
> |
complist[i].nr = 0; |
| 140 |
> |
else |
| 141 |
> |
complist[i].nr -= csm->nr; |
| 142 |
> |
break; |
| 143 |
> |
} |
| 144 |
> |
if (complist[i].nr != oldnr) |
| 145 |
> |
lastin = -1; /* flag sort */ |
| 146 |
> |
} |
| 147 |
> |
/* record computed rays for uncommon beams */ |
| 148 |
> |
for (csm = clist+nents; csm-- > clist; ) |
| 149 |
> |
if (csm->nc < 0) |
| 150 |
> |
csm->nc = bnrays(hdlist[csm->hd], csm->bi); |
| 151 |
> |
/* complete list operations */ |
| 152 |
|
switch (op) { |
| 153 |
|
case BS_NEW: /* new computation set */ |
| 154 |
< |
if (complen) |
| 154 |
> |
listpos = 0; lastin = -1; |
| 155 |
> |
if (complen) /* free old list */ |
| 156 |
|
free((char *)complist); |
| 157 |
< |
if (nents <= 0) { |
| 158 |
< |
complist = NULL; |
| 72 |
< |
listpos = complen = 0; |
| 73 |
< |
lastin = -1; |
| 157 |
> |
complist = NULL; |
| 158 |
> |
if (!(complen = nents)) |
| 159 |
|
return; |
| 75 |
– |
} |
| 160 |
|
complist = (PACKHEAD *)malloc(nents*sizeof(PACKHEAD)); |
| 161 |
|
if (complist == NULL) |
| 162 |
|
goto memerr; |
| 163 |
|
bcopy((char *)clist, (char *)complist, nents*sizeof(PACKHEAD)); |
| 80 |
– |
complen = nents; /* finish initialization below */ |
| 164 |
|
break; |
| 165 |
|
case BS_ADD: /* add to computation set */ |
| 166 |
|
case BS_ADJ: /* adjust set quantities */ |
| 167 |
|
if (nents <= 0) |
| 168 |
|
return; |
| 169 |
< |
/* merge any common members */ |
| 87 |
< |
for (n = 0; n < nents; n++) { |
| 88 |
< |
for (i = 0; i < complen; i++) |
| 89 |
< |
if (clist[n].bi == complist[i].bi && |
| 90 |
< |
clist[n].hd == complist[i].hd) { |
| 91 |
< |
int oldnr = complist[i].nr; |
| 92 |
< |
if (op == BS_ADD) |
| 93 |
< |
complist[i].nr += clist[n].nr; |
| 94 |
< |
else /* op == BS_ADJ */ |
| 95 |
< |
complist[i].nr = clist[n].nr; |
| 96 |
< |
clist[n].nr = 0; |
| 97 |
< |
clist[n].nc = complist[i].nc; |
| 98 |
< |
if (complist[i].nr != oldnr) |
| 99 |
< |
lastin = -1; /* flag sort */ |
| 100 |
< |
break; |
| 101 |
< |
} |
| 102 |
< |
if (i >= complen) |
| 103 |
< |
clist[n].nc = bnrays(hdlist[clist[n].hd], |
| 104 |
< |
clist[n].bi); |
| 105 |
< |
} |
| 106 |
< |
/* sort updated list */ |
| 107 |
< |
sortcomplist(); |
| 108 |
< |
/* sort new entries */ |
| 169 |
> |
sortcomplist(); /* sort updated list & new entries */ |
| 170 |
|
qsort((char *)clist, nents, sizeof(PACKHEAD), beamcmp); |
| 171 |
|
/* what can't we satisfy? */ |
| 172 |
< |
for (n = 0; n < nents && clist[n].nr > clist[n].nc; n++) |
| 172 |
> |
for (i = nents, csm = clist; i-- && csm->nr > csm->nc; csm++) |
| 173 |
|
; |
| 174 |
< |
if (op == BS_ADJ) |
| 175 |
< |
nents = n; |
| 174 |
> |
n = csm - clist; |
| 175 |
> |
if (op == BS_ADJ) { /* don't regenerate adjusted beams */ |
| 176 |
> |
for (++i; i-- && csm->nr > 0; csm++) |
| 177 |
> |
; |
| 178 |
> |
nents = csm - clist; |
| 179 |
> |
} |
| 180 |
|
if (n) { /* allocate space for merged list */ |
| 181 |
|
PACKHEAD *newlist; |
| 182 |
|
newlist = (PACKHEAD *)malloc( |
| 194 |
|
lastin = complen-1; /* list is now sorted */ |
| 195 |
|
break; |
| 196 |
|
case BS_DEL: /* delete from computation set */ |
| 197 |
< |
if (nents <= 0) |
| 133 |
< |
return; |
| 134 |
< |
/* find each member */ |
| 135 |
< |
for (i = 0; i < complen; i++) |
| 136 |
< |
for (n = 0; n < nents; n++) |
| 137 |
< |
if (clist[n].bi == complist[i].bi && |
| 138 |
< |
clist[n].hd == complist[i].hd) { |
| 139 |
< |
if (clist[n].nr == 0 || |
| 140 |
< |
clist[n].nr >= complist[i].nr) |
| 141 |
< |
complist[i].nr = 0; |
| 142 |
< |
else |
| 143 |
< |
complist[i].nr -= clist[n].nr; |
| 144 |
< |
lastin = -1; /* flag full sort */ |
| 145 |
< |
break; |
| 146 |
< |
} |
| 147 |
< |
return; /* no display */ |
| 197 |
> |
return; /* already done */ |
| 198 |
|
default: |
| 199 |
|
error(CONSISTENCY, "bundle_set called with unknown operation"); |
| 200 |
|
} |
| 201 |
< |
if (outdev != NULL) { /* load and display beams we have */ |
| 202 |
< |
register HDBEAMI *hb; |
| 203 |
< |
|
| 204 |
< |
hb = (HDBEAMI *)malloc(nents*sizeof(HDBEAMI)); |
| 205 |
< |
for (i = 0; i < nents; i++) { |
| 206 |
< |
hb[i].h = hdlist[clist[i].hd]; |
| 207 |
< |
hb[i].b = clist[i].bi; |
| 158 |
< |
} |
| 159 |
< |
hdloadbeams(hb, nents, dispbeam); |
| 160 |
< |
free((char *)hb); |
| 201 |
> |
if (outdev == NULL || !nents) /* nothing to display? */ |
| 202 |
> |
return; |
| 203 |
> |
/* load and display beams we have */ |
| 204 |
> |
hbarr = (HDBEAMI *)malloc(nents*sizeof(HDBEAMI)); |
| 205 |
> |
for (i = nents; i--; ) { |
| 206 |
> |
hbarr[i].h = hdlist[clist[i].hd]; |
| 207 |
> |
hbarr[i].b = clist[i].bi; |
| 208 |
|
} |
| 209 |
< |
if (op == BS_NEW) { |
| 210 |
< |
done_packets(flush_queue()); /* empty queue, so we can... */ |
| 211 |
< |
for (i = 0; i < complen; i++) /* ...get number computed */ |
| 165 |
< |
complist[i].nc = bnrays(hdlist[complist[i].hd], |
| 166 |
< |
complist[i].bi); |
| 209 |
> |
hdloadbeams(hbarr, nents, dispbeam); |
| 210 |
> |
free((char *)hbarr); |
| 211 |
> |
if (hdfragflags&FF_READ) { |
| 212 |
|
listpos = 0; |
| 213 |
< |
lastin = -1; /* flag for initial sort */ |
| 213 |
> |
lastin = -1; /* need to re-sort list */ |
| 214 |
|
} |
| 215 |
|
return; |
| 216 |
|
memerr: |
| 262 |
|
free((char *)complist); |
| 263 |
|
done_packets(flush_queue()); |
| 264 |
|
} |
| 265 |
+ |
/* reseed random number generator */ |
| 266 |
+ |
srandom(time(NULL)); |
| 267 |
|
/* allocate beam list */ |
| 268 |
|
complen = 0; |
| 269 |
|
for (j = 0; hdlist[j] != NULL; j++) |
| 274 |
|
/* compute beam weights */ |
| 275 |
|
k = 0; |
| 276 |
|
for (j = 0; hdlist[j] != NULL; j++) { |
| 277 |
< |
frac = 512. * hdlist[j]->wg[0] * |
| 278 |
< |
hdlist[j]->wg[1] * hdlist[j]->wg[2]; |
| 279 |
< |
if (frac < 0.) frac = -frac; |
| 277 |
> |
frac = 512. * VLEN(hdlist[j]->wg[0]) * |
| 278 |
> |
VLEN(hdlist[j]->wg[1]) * |
| 279 |
> |
VLEN(hdlist[j]->wg[2]); |
| 280 |
|
for (i = nbeams(hdlist[j]); i > 0; i--) { |
| 281 |
|
complist[k].hd = j; |
| 282 |
|
complist[k].bi = i; |
| 291 |
|
else |
| 292 |
|
frac = 1024.*1024.*16384. / (wtotal*sizeof(RAYVAL)); |
| 293 |
|
while (k--) |
| 294 |
< |
complist[k].nr = frac * complist[k].nr; |
| 295 |
< |
listpos = 0; lastin = -1; /* flag initial sort */ |
| 294 |
> |
complist[k].nr = frac*complist[k].nr + 0.5; |
| 295 |
> |
listpos = 0; lastin = -1; /* perform initial sort */ |
| 296 |
> |
sortcomplist(); |
| 297 |
> |
/* no view vicinity */ |
| 298 |
> |
myeye.rng = 0; |
| 299 |
|
} |
| 300 |
|
|
| 301 |
|
|
| 325 |
|
sortcomplist() /* fix our list order */ |
| 326 |
|
{ |
| 327 |
|
PACKHEAD *list2; |
| 328 |
+ |
int listlen; |
| 329 |
|
register int i; |
| 330 |
|
|
| 331 |
|
if (complen <= 0) /* check to see if there is even a list */ |
| 332 |
|
return; |
| 333 |
+ |
if (!chunky) /* check to see if fragment list is full */ |
| 334 |
+ |
if (!hdfragOK(hdlist[0]->fd, &listlen, NULL) |
| 335 |
+ |
#if NFRAG2CHUNK |
| 336 |
+ |
|| listlen >= NFRAG2CHUNK |
| 337 |
+ |
#endif |
| 338 |
+ |
) { |
| 339 |
+ |
#ifdef DEBUG |
| 340 |
+ |
error(WARNING, "using chunky comparison mode"); |
| 341 |
+ |
#endif |
| 342 |
+ |
chunky++; /* use "chunky" comparison */ |
| 343 |
+ |
lastin = -1; /* need to re-sort list */ |
| 344 |
+ |
} |
| 345 |
+ |
#ifdef DEBUG |
| 346 |
+ |
else |
| 347 |
+ |
fprintf(stderr, "sortcomplist: %d fragments\n", |
| 348 |
+ |
listlen); |
| 349 |
+ |
#endif |
| 350 |
|
if (lastin < 0 || listpos*4 >= complen*3) |
| 351 |
|
qsort((char *)complist, complen, sizeof(PACKHEAD), beamcmp); |
| 352 |
|
else if (listpos) { /* else sort and merge sublist */ |
| 369 |
|
} else if (i < complen-1) { |
| 370 |
|
list2 = (PACKHEAD *)realloc((char *)complist, |
| 371 |
|
(i+1)*sizeof(PACKHEAD)); |
| 372 |
< |
if (list2 != NULL) { |
| 372 |
> |
if (list2 != NULL) |
| 373 |
|
complist = list2; |
| 374 |
< |
complen = i+1; |
| 307 |
< |
} |
| 374 |
> |
complen = i+1; |
| 375 |
|
} |
| 376 |
|
listpos = 0; lastin = i; |
| 377 |
|
} |
| 382 |
|
* more or less evenly distributed, such that computing a packet causes |
| 383 |
|
* a given bundle to move way down in the computation order. We keep |
| 384 |
|
* track of where the computed bundle with the highest priority would end |
| 385 |
< |
* up, and if we get further in our compute list than this, we resort the |
| 385 |
> |
* up, and if we get further in our compute list than this, we re-sort the |
| 386 |
|
* list and start again from the beginning. Since |
| 387 |
|
* a merge sort is used, the sorting costs are minimal. |
| 388 |
|
*/ |
| 402 |
|
p->nr = complist[listpos].nr - p->nc; |
| 403 |
|
if (p->nr <= 0) |
| 404 |
|
return(0); |
| 405 |
< |
#ifdef DEBUG |
| 406 |
< |
if (n < 1 | n > RPACKSIZ) |
| 340 |
< |
error(CONSISTENCY, "next_packet called with bad n value"); |
| 341 |
< |
#endif |
| 405 |
> |
DCHECK(n < 1 | n > RPACKSIZ, |
| 406 |
> |
CONSISTENCY, "next_packet called with bad n value"); |
| 407 |
|
if (p->nr > n) |
| 408 |
|
p->nr = n; |
| 409 |
|
complist[listpos].nc += p->nr; /* find where this one would go */ |
| 410 |
+ |
if (hdgetbeam(hdlist[p->hd], p->bi) != NULL) |
| 411 |
+ |
hdfreefrag(hdlist[p->hd], p->bi); |
| 412 |
|
while (lastin > listpos && |
| 413 |
|
beamcmp(complist+lastin, complist+listpos) > 0) |
| 414 |
|
lastin--; |
