| 1 | – | /* Copyright (c) 1998 Silicon Graphics, Inc. */ | 
| 2 | – |  | 
| 1 |  | #ifndef lint | 
| 2 | < | static char SCCSid[] = "$SunId$ SGI"; | 
| 2 | > | static const char       RCSid[] = "$Id$"; | 
| 3 |  | #endif | 
| 6 | – |  | 
| 4 |  | /* | 
| 5 |  | * Radiance holodeck generation controller | 
| 6 |  | */ | 
| 8 |  | #include "rholo.h" | 
| 9 |  | #include "random.h" | 
| 10 |  | #include <signal.h> | 
| 14 | – | #include <sys/types.h> | 
| 11 |  | #include <sys/stat.h> | 
| 12 |  |  | 
| 13 | + | #ifndef FRAGWARN | 
| 14 | + | #define FRAGWARN        20              /* fragmentation for warning (%) */ | 
| 15 | + | #endif | 
| 16 |  | #ifndef MAXQTIME | 
| 17 |  | #define MAXQTIME        5               /* target maximum seconds in queue */ | 
| 18 |  | #endif | 
| 19 | + | /* manual cache flushing frequency */ | 
| 20 | + | #ifndef RTFLUSH | 
| 21 | + | #if MAXQTIME | 
| 22 | + | #define RTFLUSH         (300/MAXQTIME*totqlen)  /* <= 5 minutes */ | 
| 23 | + | #else | 
| 24 | + | #define RTFLUSH         (50*totqlen)            /* just guess */ | 
| 25 | + | #endif | 
| 26 | + | #endif | 
| 27 |  | /* the following must be consistent with rholo.h */ | 
| 28 |  | int     NVARS = NRHVARS;                /* total number of variables */ | 
| 29 |  |  | 
| 33 |  | char    *hdkfile;               /* holodeck file name */ | 
| 34 |  | char    froot[256];             /* root file name */ | 
| 35 |  |  | 
| 29 | – | int     nowarn = 0;             /* turn warnings off? */ | 
| 30 | – |  | 
| 36 |  | int     ncprocs = 0;            /* desired number of compute processes */ | 
| 37 |  |  | 
| 38 |  | char    *outdev = NULL;         /* output device name */ | 
| 39 |  |  | 
| 40 |  | int     readinp = 0;            /* read commands from stdin */ | 
| 41 |  |  | 
| 42 | < | int     force = 0;              /* allow overwrite of holodeck */ | 
| 42 | > | int     force = 0;              /* allow overwrite of holodeck (-1 == read-only) */ | 
| 43 |  |  | 
| 44 |  | time_t  starttime;              /* time we got started */ | 
| 45 |  | time_t  endtime;                /* time we should end by */ | 
| 46 |  | time_t  reporttime;             /* time for next report */ | 
| 47 |  |  | 
| 48 | < | long    maxdisk;                /* maximum file space (bytes) */ | 
| 48 | > | off_t   maxdisk;                /* maximum file space (bytes) */ | 
| 49 |  |  | 
| 50 |  | int     rtargc = 1;             /* rtrace command */ | 
| 51 |  | char    *rtargv[128] = {"rtrace", NULL}; | 
| 56 |  | long    npacksdone = 0L;        /* number of packets done */ | 
| 57 |  |  | 
| 58 |  | PACKET  *freepacks;             /* available packets */ | 
| 59 | < | int     totqlen;                /* maximum queue length when full */ | 
| 59 | > | int     totqlen;                /* maximum queue length (number of packets) */ | 
| 60 |  |  | 
| 61 |  | char  *sigerr[NSIG];            /* signal error messages */ | 
| 62 |  |  | 
| 63 | + | extern int      nowarn;         /* turn warnings off? */ | 
| 64 | + |  | 
| 65 |  | extern time_t   time(); | 
| 66 |  |  | 
| 67 |  |  | 
| 79 |  | nowarn++; | 
| 80 |  | break; | 
| 81 |  | case 'f':                       /* force overwrite */ | 
| 82 | < | force++; | 
| 82 | > | force = 1; | 
| 83 |  | break; | 
| 84 | + | case 'r':                       /* read-only mode */ | 
| 85 | + | force = -1; | 
| 86 | + | break; | 
| 87 |  | case 'i':                       /* read input from stdin */ | 
| 88 |  | readinp++; | 
| 89 |  | break; | 
| 126 |  | HDGRID  hdg[HDMAX]; | 
| 127 |  | /* set defaults */ | 
| 128 |  | setdefaults(hdg); | 
| 129 | + | /* check read-only */ | 
| 130 | + | if (force < 0) | 
| 131 | + | error(USER, "cannot create read-only holodeck"); | 
| 132 |  | /* holodeck exists? */ | 
| 133 |  | if (!force && access(hdkfile, R_OK|W_OK) == 0) | 
| 134 |  | error(USER, | 
| 146 |  | quit(0); | 
| 147 |  | userr: | 
| 148 |  | fprintf(stderr, | 
| 149 | < | "Usage: %s [-n nprocs][-o disp][-w][-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", | 
| 149 | > | "Usage: %s [-n nprocs][-o disp][-w][-r|-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", | 
| 150 |  | progname); | 
| 151 |  | quit(1); | 
| 152 |  | } | 
| 153 |  |  | 
| 154 |  |  | 
| 155 | + | void | 
| 156 |  | onsig(signo)                            /* fatal signal */ | 
| 157 |  | int  signo; | 
| 158 |  | { | 
| 159 |  | static int  gotsig = 0; | 
| 160 |  |  | 
| 161 | < | if (gotsig++)                   /* two signals and we're gone! */ | 
| 161 | > | if (gotsig > 1)                 /* we're going as fast as we can! */ | 
| 162 | > | return; | 
| 163 | > | if (gotsig++) {                 /* two signals and we split */ | 
| 164 | > | hdsync(NULL, 0);        /* don't leave w/o saying goodbye */ | 
| 165 |  | _exit(signo); | 
| 166 | < |  | 
| 167 | < | alarm(60);                      /* allow 60 seconds to clean up */ | 
| 151 | < | signal(SIGALRM, SIG_DFL);       /* make certain we do die */ | 
| 166 | > | } | 
| 167 | > | alarm(300);                     /* allow 5 minutes to clean up */ | 
| 168 |  | eputs("signal - "); | 
| 169 |  | eputs(sigerr[signo]); | 
| 170 |  | eputs("\n"); | 
| 215 |  | init_global(); | 
| 216 |  | /* record disk space limit */ | 
| 217 |  | if (!vdef(DISKSPACE)) | 
| 218 | < | maxdisk = 0; | 
| 218 | > | maxdisk = ((off_t)1<<(sizeof(off_t)*8-2)) - 1024; | 
| 219 |  | else | 
| 220 |  | maxdisk = 1024.*1024.*vflt(DISKSPACE); | 
| 221 |  | /* set up memory cache */ | 
| 222 |  | if (outdev == NULL) | 
| 223 | < | hdcachesize = 0;        /* manual flushing */ | 
| 223 | > | hdcachesize = 0;                /* manual flushing */ | 
| 224 |  | else if (vdef(CACHE)) | 
| 225 |  | hdcachesize = 1024.*1024.*vflt(CACHE); | 
| 226 |  | /* open report file */ | 
| 275 |  | sigdie(SIGXCPU, "CPU limit exceeded"); | 
| 276 |  | sigdie(SIGXFSZ, "File size exceeded"); | 
| 277 |  | #endif | 
| 278 | < | /* protect holodeck file */ | 
| 279 | < | orig_mode = resfmode(hdlist[0]->fd, ncprocs>0 ? 0 : 0444); | 
| 278 | > | /* protect holodeck file */ | 
| 279 | > | orig_mode = resfmode(hdlist[0]->fd, ncprocs>0&force>=0 ? 0 : 0444); | 
| 280 |  | return; | 
| 281 |  | memerr: | 
| 282 |  | error(SYSTEM, "out of memory in initrholo"); | 
| 285 |  |  | 
| 286 |  | rholo()                         /* holodeck main loop */ | 
| 287 |  | { | 
| 288 | + | static long     nextfragwarn = 100*(1L<<20); | 
| 289 |  | static int      idle = 0; | 
| 290 |  | PACKET  *pl = NULL, *plend; | 
| 291 | + | off_t   fsiz; | 
| 292 |  | int     pksiz; | 
| 293 |  | register PACKET *p; | 
| 294 |  | time_t  t; | 
| 302 |  | return(1); | 
| 303 |  | } else if (idle) | 
| 304 |  | return(0);              /* all done */ | 
| 305 | < | /* check file size */ | 
| 306 | < | if (maxdisk > 0 && hdfilen(hdlist[0]->fd) >= maxdisk) { | 
| 305 | > | fsiz = hdfilen(hdlist[0]->fd);  /* check file size */ | 
| 306 | > | if (maxdisk > 0 && fsiz >= maxdisk) { | 
| 307 |  | error(WARNING, "file limit exceeded"); | 
| 308 |  | done_rtrace(); | 
| 309 |  | return(1);      /* comes back */ | 
| 310 |  | } | 
| 311 | + | #if FRAGWARN | 
| 312 | + | if (fsiz >= nextfragwarn && | 
| 313 | + | (fsiz-hdfiluse(hdlist[0]->fd,0))/(fsiz/100) > FRAGWARN) { | 
| 314 | + | sprintf(errmsg, "holodeck file fragmentation is %.0f%%", | 
| 315 | + | 100.*(fsiz-hdfiluse(hdlist[0]->fd,1))/fsiz); | 
| 316 | + | error(WARNING, errmsg); | 
| 317 | + | nextfragwarn = fsiz + (fsiz>>2);        /* decent interval */ | 
| 318 | + | } | 
| 319 | + | #endif | 
| 320 |  | t = time(NULL);                 /* check time */ | 
| 321 |  | if (endtime > 0 && t >= endtime) { | 
| 322 |  | error(WARNING, "time limit exceeded"); | 
| 326 |  | if (reporttime > 0 && t >= reporttime) | 
| 327 |  | report(t); | 
| 328 |  | /* figure out good packet size */ | 
| 329 | + | pksiz = RPACKSIZ; | 
| 330 |  | #if MAXQTIME | 
| 331 | < | pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); | 
| 332 | < | if (pksiz < 1) | 
| 333 | < | pksiz = 1; | 
| 334 | < | else if (pksiz > RPACKSIZ) | 
| 331 | > | if (!chunkycmp) { | 
| 332 | > | pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); | 
| 333 | > | if (pksiz < 1) pksiz = 1; | 
| 334 | > | else if (pksiz > RPACKSIZ) pksiz = RPACKSIZ; | 
| 335 | > | } | 
| 336 |  | #endif | 
| 308 | – | pksiz = RPACKSIZ; | 
| 337 |  | idle = 0;                       /* get packets to process */ | 
| 338 |  | while (freepacks != NULL) { | 
| 339 |  | p = freepacks; freepacks = p->next; p->next = NULL; | 
| 395 |  | for (i = 0; i < 3; i++) | 
| 396 |  | len[i] = VLEN(gp->xv[i]); | 
| 397 |  | if (!vdef(GRID)) { | 
| 398 | < | d = 2/5e5*( len[0]*len[0]*(len[1]*len[1] + | 
| 398 | > | d = 2/2e5*( len[0]*len[0]*(len[1]*len[1] + | 
| 399 |  | len[2]*len[2] + 4*len[1]*len[2]) | 
| 400 |  | + len[1]*len[1]*len[2]*(len[2] + 4*len[0]) | 
| 401 |  | + 4*len[0]*len[1]*len[2]*len[2] ); | 
| 413 |  | HDGRID  *gp; | 
| 414 |  | { | 
| 415 |  | extern char     VersionID[]; | 
| 416 | < | int4    lastloc, nextloc; | 
| 416 | > | int32   lastloc, nextloc; | 
| 417 |  | int     n; | 
| 418 |  | int     fd; | 
| 419 |  | FILE    *fp; | 
| 431 |  | putw(HOLOMAGIC, fp);            /* put magic number */ | 
| 432 |  | fd = dup(fileno(fp)); | 
| 433 |  | fclose(fp);                     /* flush and close stdio stream */ | 
| 434 | < | lastloc = lseek(fd, 0L, 2); | 
| 434 | > | lastloc = lseek(fd, (off_t)0, 2); | 
| 435 |  | for (n = vdef(SECTION); n--; gp++) {    /* initialize each section */ | 
| 436 |  | nextloc = 0L; | 
| 437 |  | write(fd, (char *)&nextloc, sizeof(nextloc)); | 
| 439 |  | if (!n) | 
| 440 |  | break; | 
| 441 |  | nextloc = hdfilen(fd);          /* write section pointer */ | 
| 442 | < | if (lseek(fd, (long)lastloc, 0) < 0) | 
| 442 | > | if (lseek(fd, (off_t)lastloc, 0) < 0) | 
| 443 |  | error(SYSTEM, | 
| 444 |  | "cannot seek on holodeck file in creatholo"); | 
| 445 |  | write(fd, (char *)&nextloc, sizeof(nextloc)); | 
| 446 | < | lseek(fd, (long)(lastloc=nextloc), 0); | 
| 446 | > | lseek(fd, (off_t)(lastloc=nextloc), 0); | 
| 447 |  | } | 
| 448 |  | } | 
| 449 |  |  | 
| 450 |  |  | 
| 451 | + | int | 
| 452 |  | headline(s)                     /* process information header line */ | 
| 453 |  | char    *s; | 
| 454 |  | { | 
| 462 |  | HOLOFMT, hdkfile, FMTSTR, fmt); | 
| 463 |  | error(USER, errmsg); | 
| 464 |  | } | 
| 465 | < | return; | 
| 465 | > | return(0); | 
| 466 |  | } | 
| 467 |  | for (cp = s; *cp; cp++)         /* take off any comments */ | 
| 468 |  | if (*cp == '#') { | 
| 470 |  | break; | 
| 471 |  | } | 
| 472 |  | setvariable(s, matchvar);       /* don't flag errors */ | 
| 473 | + | return(0); | 
| 474 |  | } | 
| 475 |  |  | 
| 476 |  |  | 
| 477 |  | loadholo()                      /* start loading a holodeck from fname */ | 
| 478 |  | { | 
| 449 | – | extern long     ftell(); | 
| 479 |  | FILE    *fp; | 
| 480 |  | int     fd; | 
| 481 |  | int     n; | 
| 482 | < | int4    nextloc; | 
| 483 | < | /* open holodeck file */ | 
| 484 | < | if ((fp = fopen(hdkfile, ncprocs>0 ? "r+" : "r")) == NULL) { | 
| 485 | < | sprintf(errmsg, "cannot open \"%s\" for %s", hdkfile, | 
| 486 | < | ncprocs>0 ? "appending" : "reading"); | 
| 487 | < | error(SYSTEM, errmsg); | 
| 482 | > | int32   nextloc; | 
| 483 | > |  | 
| 484 | > | if (ncprocs > 0 & force >= 0) | 
| 485 | > | fp = fopen(hdkfile, "r+"); | 
| 486 | > | else | 
| 487 | > | fp = NULL; | 
| 488 | > | if (fp == NULL) { | 
| 489 | > | if ((fp = fopen(hdkfile, "r")) == NULL) { | 
| 490 | > | sprintf(errmsg, "cannot open \"%s\"", hdkfile); | 
| 491 | > | error(SYSTEM, errmsg); | 
| 492 | > | } | 
| 493 | > | if (ncprocs > 0) { | 
| 494 | > | sprintf(errmsg, | 
| 495 | > | "\"%s\" opened read-only; new rays will be discarded", | 
| 496 | > | hdkfile); | 
| 497 | > | error(WARNING, errmsg); | 
| 498 | > | force = -1; | 
| 499 | > | } | 
| 500 |  | } | 
| 501 |  | /* load variables from header */ | 
| 502 |  | getheader(fp, headline, NULL); | 
| 510 |  | fd = dup(fileno(fp)); | 
| 511 |  | fclose(fp);                             /* done with stdio */ | 
| 512 |  | for (n = 0; nextloc > 0L; n++) {        /* initialize each section */ | 
| 513 | < | lseek(fd, (long)nextloc, 0); | 
| 513 | > | lseek(fd, (off_t)nextloc, 0); | 
| 514 |  | read(fd, (char *)&nextloc, sizeof(nextloc)); | 
| 515 |  | hdinit(fd, NULL); | 
| 516 |  | } | 
| 531 |  | while (pl != NULL) { | 
| 532 |  | p = pl; pl = p->next; p->next = NULL; | 
| 533 |  | if (p->nr > 0) {                /* add to holodeck */ | 
| 534 | < | bcopy((char *)p->ra, | 
| 535 | < | (char *)hdnewrays(hdlist[p->hd],p->bi,p->nr), | 
| 534 | > | bcopy((void *)p->ra, | 
| 535 | > | (void *)hdnewrays(hdlist[p->hd],p->bi,p->nr), | 
| 536 |  | p->nr*sizeof(RAYVAL)); | 
| 537 |  | if (outdev != NULL)     /* display it */ | 
| 538 |  | disp_packet((PACKHEAD *)p); | 
| 539 | < | if (hdcachesize <= 0)   /* manual flushing */ | 
| 539 | > | if (hdcachesize <= 0) | 
| 540 |  | n2flush++; | 
| 541 |  | nraysdone += p->nr; | 
| 542 |  | npacksdone++; | 
| 545 |  | p->next = freepacks;            /* push onto free list */ | 
| 546 |  | freepacks = p; | 
| 547 |  | } | 
| 548 | < | if (n2flush > 300/MAXQTIME*totqlen) { | 
| 549 | < | hdflush(NULL);                  /* flush holodeck buffers */ | 
| 548 | > | if (n2flush >= RTFLUSH) { | 
| 549 | > | if (outdev != NULL) | 
| 550 | > | hdsync(NULL, 1); | 
| 551 | > | else | 
| 552 | > | hdflush(NULL); | 
| 553 |  | n2flush = 0; | 
| 554 |  | } | 
| 555 |  | } | 
| 578 |  | } | 
| 579 |  |  | 
| 580 |  |  | 
| 581 | + | void | 
| 582 |  | eputs(s)                        /* put error message to stderr */ | 
| 583 |  | register char  *s; | 
| 584 |  | { | 
| 598 |  | } | 
| 599 |  |  | 
| 600 |  |  | 
| 601 | < | wputs(s)                        /* put warning string to stderr */ | 
| 557 | < | char    *s; | 
| 558 | < | { | 
| 559 | < | if (!nowarn) | 
| 560 | < | eputs(s); | 
| 561 | < | } | 
| 562 | < |  | 
| 563 | < |  | 
| 601 | > | void | 
| 602 |  | quit(ec)                        /* exit program gracefully */ | 
| 603 |  | int     ec; | 
| 604 |  | { | 
| 607 |  | if (hdlist[0] != NULL) {        /* close holodeck */ | 
| 608 |  | if (nprocs > 0) | 
| 609 |  | status = done_rtrace();         /* calls hdsync() */ | 
| 610 | < | if (ncprocs > 0 && vdef(REPORT)) { | 
| 611 | < | long    fsiz, fuse; | 
| 610 | > | if (ncprocs > 0 & force >= 0 && vdef(REPORT)) { | 
| 611 | > | off_t   fsiz, fuse; | 
| 612 |  | fsiz = hdfilen(hdlist[0]->fd); | 
| 613 |  | fuse = hdfiluse(hdlist[0]->fd, 1); | 
| 614 |  | fprintf(stderr, |