| 1 | – | /* Copyright (c) 1999 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 |  | */ | 
| 7 |  |  | 
| 8 | < | #include "rholo.h" | 
| 9 | < | #include "random.h" | 
| 8 | > | #include <stdio.h> | 
| 9 | > | #include <time.h> | 
| 10 |  | #include <signal.h> | 
| 14 | – | #include <sys/types.h> | 
| 11 |  | #include <sys/stat.h> | 
| 12 | + | #include <string.h> | 
| 13 |  |  | 
| 14 | < | #ifndef RTFLUSH | 
| 15 | < | #define RTFLUSH         0               /* flush one at a time in batch */ | 
| 16 | < | #endif | 
| 14 | > | #include "platform.h" | 
| 15 | > | #include "rterror.h" | 
| 16 | > | #include "resolu.h" | 
| 17 | > | #include "rholo.h" | 
| 18 | > | #include "random.h" | 
| 19 | > |  | 
| 20 |  | #ifndef FRAGWARN | 
| 21 |  | #define FRAGWARN        20              /* fragmentation for warning (%) */ | 
| 22 |  | #endif | 
| 23 |  | #ifndef MAXQTIME | 
| 24 |  | #define MAXQTIME        5               /* target maximum seconds in queue */ | 
| 25 |  | #endif | 
| 26 | + | /* manual cache flushing frequency */ | 
| 27 | + | #ifndef RTFLUSH | 
| 28 | + | #if MAXQTIME | 
| 29 | + | #define RTFLUSH         (300/MAXQTIME*totqlen)  /* <= 5 minutes */ | 
| 30 | + | #else | 
| 31 | + | #define RTFLUSH         (50*totqlen)            /* just guess */ | 
| 32 | + | #endif | 
| 33 | + | #endif | 
| 34 |  | /* the following must be consistent with rholo.h */ | 
| 35 |  | int     NVARS = NRHVARS;                /* total number of variables */ | 
| 36 |  |  | 
| 46 |  |  | 
| 47 |  | int     readinp = 0;            /* read commands from stdin */ | 
| 48 |  |  | 
| 49 | < | int     force = 0;              /* allow overwrite of holodeck */ | 
| 49 | > | int     force = 0;              /* allow overwrite of holodeck (-1 == read-only) */ | 
| 50 |  |  | 
| 51 |  | time_t  starttime;              /* time we got started */ | 
| 52 |  | time_t  endtime;                /* time we should end by */ | 
| 53 |  | time_t  reporttime;             /* time for next report */ | 
| 54 |  |  | 
| 55 | < | long    maxdisk;                /* maximum file space (bytes) */ | 
| 55 | > | off_t   maxdisk;                /* maximum file space (bytes) */ | 
| 56 |  |  | 
| 57 |  | int     rtargc = 1;             /* rtrace command */ | 
| 58 |  | char    *rtargv[128] = {"rtrace", NULL}; | 
| 63 |  | long    npacksdone = 0L;        /* number of packets done */ | 
| 64 |  |  | 
| 65 |  | PACKET  *freepacks;             /* available packets */ | 
| 66 | < | int     totqlen;                /* maximum queue length when full */ | 
| 66 | > | int     totqlen;                /* maximum queue length (number of packets) */ | 
| 67 |  |  | 
| 68 |  | char  *sigerr[NSIG];            /* signal error messages */ | 
| 69 |  |  | 
| 70 |  | extern int      nowarn;         /* turn warnings off? */ | 
| 71 |  |  | 
| 72 | < | extern time_t   time(); | 
| 72 | > | static void onsig(int  signo); | 
| 73 | > | static void sigdie(int  signo, char  *msg); | 
| 74 | > | static int resfmode(int fd, int mod); | 
| 75 | > | static void initrholo(void); | 
| 76 | > | static int rholo(void); | 
| 77 | > | static void setdefaults(HDGRID  *gp); | 
| 78 | > | static void creatholo(HDGRID    *gp); | 
| 79 | > | static gethfunc headline; | 
| 80 | > | static void loadholo(void); | 
| 81 | > | static void rootname(char       *rn, char       *fn); | 
| 82 | > | static void badvalue(int        vc); | 
| 83 |  |  | 
| 84 |  |  | 
| 85 | < | main(argc, argv) | 
| 86 | < | int     argc; | 
| 87 | < | char    *argv[]; | 
| 85 | > | int | 
| 86 | > | main( | 
| 87 | > | int     argc, | 
| 88 | > | char    *argv[] | 
| 89 | > | ) | 
| 90 |  | { | 
| 91 |  | int     i; | 
| 92 |  |  | 
| 73 | – | initurand(16384);                       /* initialize urand */ | 
| 93 |  | progname = argv[0];                     /* get arguments */ | 
| 94 |  | for (i = 1; i < argc && argv[i][0] == '-'; i++) | 
| 95 |  | switch (argv[i][1]) { | 
| 97 |  | nowarn++; | 
| 98 |  | break; | 
| 99 |  | case 'f':                       /* force overwrite */ | 
| 100 | < | force++; | 
| 100 | > | force = 1; | 
| 101 |  | break; | 
| 102 | + | case 'r':                       /* read-only mode */ | 
| 103 | + | force = -1; | 
| 104 | + | break; | 
| 105 |  | case 'i':                       /* read input from stdin */ | 
| 106 |  | readinp++; | 
| 107 |  | break; | 
| 144 |  | HDGRID  hdg[HDMAX]; | 
| 145 |  | /* set defaults */ | 
| 146 |  | setdefaults(hdg); | 
| 147 | + | /* check read-only */ | 
| 148 | + | if (force < 0) | 
| 149 | + | error(USER, "cannot create read-only holodeck"); | 
| 150 |  | /* holodeck exists? */ | 
| 151 |  | if (!force && access(hdkfile, R_OK|W_OK) == 0) | 
| 152 |  | error(USER, | 
| 164 |  | quit(0); | 
| 165 |  | userr: | 
| 166 |  | fprintf(stderr, | 
| 167 | < | "Usage: %s [-n nprocs][-o disp][-w][-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", | 
| 167 | > | "Usage: %s [-n nprocs][-o disp][-w][-r|-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", | 
| 168 |  | progname); | 
| 169 |  | quit(1); | 
| 170 | + | return 1; /* pro forma return */ | 
| 171 |  | } | 
| 172 |  |  | 
| 173 |  |  | 
| 174 | < | onsig(signo)                            /* fatal signal */ | 
| 175 | < | int  signo; | 
| 174 | > | static void | 
| 175 | > | onsig(                          /* fatal signal */ | 
| 176 | > | int  signo | 
| 177 | > | ) | 
| 178 |  | { | 
| 179 |  | static int  gotsig = 0; | 
| 180 |  |  | 
| 192 |  | } | 
| 193 |  |  | 
| 194 |  |  | 
| 195 | < | sigdie(signo, msg)                      /* set fatal signal */ | 
| 196 | < | int  signo; | 
| 197 | < | char  *msg; | 
| 195 | > | static void | 
| 196 | > | sigdie(                 /* set fatal signal */ | 
| 197 | > | int  signo, | 
| 198 | > | char  *msg | 
| 199 | > | ) | 
| 200 |  | { | 
| 201 |  | if (signal(signo, onsig) == SIG_IGN) | 
| 202 |  | signal(signo, SIG_IGN); | 
| 204 |  | } | 
| 205 |  |  | 
| 206 |  |  | 
| 207 | < | int | 
| 208 | < | resfmode(fd, mod)               /* restrict open file access mode */ | 
| 209 | < | int     fd, mod; | 
| 207 | > | static int | 
| 208 | > | resfmode(               /* restrict open file access mode */ | 
| 209 | > | int     fd, | 
| 210 | > | int     mod | 
| 211 | > | ) | 
| 212 |  | { | 
| 213 |  | struct stat     stbuf; | 
| 214 |  | /* get original mode */ | 
| 226 |  | } | 
| 227 |  |  | 
| 228 |  |  | 
| 229 | < | initrholo()                     /* get our holodeck running */ | 
| 229 | > | static void | 
| 230 | > | initrholo(void)                 /* get our holodeck running */ | 
| 231 |  | { | 
| 232 |  | extern int      global_packet(); | 
| 233 |  | register int    i; | 
| 240 |  | init_global(); | 
| 241 |  | /* record disk space limit */ | 
| 242 |  | if (!vdef(DISKSPACE)) | 
| 243 | < | maxdisk = 0; | 
| 243 | > | maxdisk = ((off_t)1<<(sizeof(off_t)*8-2)) - 1024; | 
| 244 |  | else | 
| 245 |  | maxdisk = 1024.*1024.*vflt(DISKSPACE); | 
| 246 |  | /* set up memory cache */ | 
| 247 |  | if (outdev == NULL) | 
| 248 | < | hdcachesize = 0;        /* manual flushing */ | 
| 248 | > | hdcachesize = 0;                /* manual flushing */ | 
| 249 |  | else if (vdef(CACHE)) | 
| 250 |  | hdcachesize = 1024.*1024.*vflt(CACHE); | 
| 251 |  | /* open report file */ | 
| 292 |  | } | 
| 293 |  | /* set up signal handling */ | 
| 294 |  | sigdie(SIGINT, "Interrupt"); | 
| 262 | – | sigdie(SIGHUP, "Hangup"); | 
| 295 |  | sigdie(SIGTERM, "Terminate"); | 
| 296 | + | #ifdef SIGHUP | 
| 297 | + | sigdie(SIGHUP, "Hangup"); | 
| 298 | + | #endif | 
| 299 | + | #ifdef SIGPIPE | 
| 300 |  | sigdie(SIGPIPE, "Broken pipe"); | 
| 301 | + | #endif | 
| 302 | + | #ifdef SIGALRM | 
| 303 |  | sigdie(SIGALRM, "Alarm clock"); | 
| 304 | + | #endif | 
| 305 |  | #ifdef  SIGXCPU | 
| 306 |  | sigdie(SIGXCPU, "CPU limit exceeded"); | 
| 307 | + | #endif | 
| 308 | + | #ifdef  SIGXFSZ | 
| 309 |  | sigdie(SIGXFSZ, "File size exceeded"); | 
| 310 |  | #endif | 
| 311 | < | /* protect holodeck file */ | 
| 312 | < | orig_mode = resfmode(hdlist[0]->fd, ncprocs>0 ? 0 : 0444); | 
| 311 | > | /* protect holodeck file */ | 
| 312 | > | orig_mode = resfmode(hdlist[0]->fd, (ncprocs>0) & (force>=0) ? 0 : 0444); | 
| 313 |  | return; | 
| 314 |  | memerr: | 
| 315 |  | error(SYSTEM, "out of memory in initrholo"); | 
| 316 |  | } | 
| 317 |  |  | 
| 318 |  |  | 
| 319 | < | rholo()                         /* holodeck main loop */ | 
| 319 | > | static int | 
| 320 | > | rholo(void)                             /* holodeck main loop */ | 
| 321 |  | { | 
| 322 | < | static long     nextfragwarn = 100*(1L<<20); | 
| 322 | > | static long     nextfragwarn = 100L<<20; | 
| 323 |  | static int      idle = 0; | 
| 324 |  | PACKET  *pl = NULL, *plend; | 
| 325 | < | long    fsiz; | 
| 325 | > | off_t   fsiz; | 
| 326 |  | int     pksiz; | 
| 327 |  | register PACKET *p; | 
| 328 |  | time_t  t; | 
| 343 |  | return(1);      /* comes back */ | 
| 344 |  | } | 
| 345 |  | #if FRAGWARN | 
| 346 | < | if (fsiz >= nextfragwarn && | 
| 347 | < | (fsiz-hdfiluse(hdlist[0]->fd,0))/(fsiz/100) > FRAGWARN) { | 
| 348 | < | sprintf(errmsg, "holodeck file fragmentation is %.0f%%", | 
| 349 | < | 100.*(fsiz-hdfiluse(hdlist[0]->fd,1))/fsiz); | 
| 350 | < | error(WARNING, errmsg); | 
| 351 | < | nextfragwarn = fsiz + (fsiz>>2);        /* decent interval */ | 
| 346 | > | if (fsiz >= nextfragwarn) { | 
| 347 | > | double  pctfrag = 100.*(fsiz-hdfiluse(hdlist[0]->fd))/fsiz; | 
| 348 | > | if (pctfrag >= (double)FRAGWARN) { | 
| 349 | > | sprintf(errmsg, "holodeck file fragmentation is %.0f%%", | 
| 350 | > | pctfrag); | 
| 351 | > | error(WARNING, errmsg); | 
| 352 | > | nextfragwarn = fsiz + (fsiz>>2); | 
| 353 | > | } else | 
| 354 | > | nextfragwarn = fsiz + (10L<<20); | 
| 355 |  | } | 
| 356 |  | #endif | 
| 357 |  | t = time(NULL);                 /* check time */ | 
| 389 |  | } | 
| 390 |  |  | 
| 391 |  |  | 
| 392 | < | setdefaults(gp)                 /* set default values */ | 
| 393 | < | register HDGRID *gp; | 
| 392 | > | static void | 
| 393 | > | setdefaults(                    /* set default values */ | 
| 394 | > | register HDGRID *gp | 
| 395 | > | ) | 
| 396 |  | { | 
| 397 |  | extern char     *atos(); | 
| 398 |  | register int    i; | 
| 399 |  | int     n; | 
| 400 |  | double  len[3], d; | 
| 354 | – | char    buf[64]; | 
| 401 |  |  | 
| 402 |  | if (!vdef(SECTION)) { | 
| 403 |  | sprintf(errmsg, "%s must be defined", vnam(SECTION)); | 
| 447 |  | } | 
| 448 |  |  | 
| 449 |  |  | 
| 450 | < | creatholo(gp)                   /* create a holodeck output file */ | 
| 451 | < | HDGRID  *gp; | 
| 450 | > | static void | 
| 451 | > | creatholo(                      /* create a holodeck output file */ | 
| 452 | > | HDGRID  *gp | 
| 453 | > | ) | 
| 454 |  | { | 
| 455 |  | extern char     VersionID[]; | 
| 456 | < | int4    lastloc, nextloc; | 
| 456 | > | int32   lastloc, nextloc; | 
| 457 |  | int     n; | 
| 458 |  | int     fd; | 
| 459 |  | FILE    *fp; | 
| 471 |  | putw(HOLOMAGIC, fp);            /* put magic number */ | 
| 472 |  | fd = dup(fileno(fp)); | 
| 473 |  | fclose(fp);                     /* flush and close stdio stream */ | 
| 474 | < | lastloc = lseek(fd, 0L, 2); | 
| 474 | > | lastloc = lseek(fd, (off_t)0, SEEK_END); | 
| 475 |  | for (n = vdef(SECTION); n--; gp++) {    /* initialize each section */ | 
| 476 |  | nextloc = 0L; | 
| 477 |  | write(fd, (char *)&nextloc, sizeof(nextloc)); | 
| 479 |  | if (!n) | 
| 480 |  | break; | 
| 481 |  | nextloc = hdfilen(fd);          /* write section pointer */ | 
| 482 | < | if (lseek(fd, (long)lastloc, 0) < 0) | 
| 482 | > | if (lseek(fd, (off_t)lastloc, SEEK_SET) < 0) | 
| 483 |  | error(SYSTEM, | 
| 484 |  | "cannot seek on holodeck file in creatholo"); | 
| 485 |  | write(fd, (char *)&nextloc, sizeof(nextloc)); | 
| 486 | < | lseek(fd, (long)(lastloc=nextloc), 0); | 
| 486 | > | lseek(fd, (off_t)(lastloc=nextloc), SEEK_SET); | 
| 487 |  | } | 
| 488 |  | } | 
| 489 |  |  | 
| 490 |  |  | 
| 491 | < | int | 
| 492 | < | headline(s)                     /* process information header line */ | 
| 493 | < | char    *s; | 
| 491 | > | static int | 
| 492 | > | headline(                       /* process information header line */ | 
| 493 | > | char    *s, | 
| 494 | > | void    *p | 
| 495 | > | ) | 
| 496 |  | { | 
| 497 |  | extern char     FMTSTR[]; | 
| 498 |  | register char   *cp; | 
| 516 |  | } | 
| 517 |  |  | 
| 518 |  |  | 
| 519 | < | loadholo()                      /* start loading a holodeck from fname */ | 
| 519 | > | static void | 
| 520 | > | loadholo(void)                  /* start loading a holodeck from fname */ | 
| 521 |  | { | 
| 471 | – | extern long     ftell(); | 
| 522 |  | FILE    *fp; | 
| 523 |  | int     fd; | 
| 524 |  | int     n; | 
| 525 | < | int4    nextloc; | 
| 526 | < | /* open holodeck file */ | 
| 527 | < | if ((fp = fopen(hdkfile, ncprocs>0 ? "r+" : "r")) == NULL) { | 
| 528 | < | sprintf(errmsg, "cannot %s \"%s\"", | 
| 529 | < | ncprocs>0 ? "append" : "read", hdkfile); | 
| 530 | < | error(SYSTEM, errmsg); | 
| 525 | > | int32   nextloc; | 
| 526 | > |  | 
| 527 | > | if ((ncprocs > 0) & (force >= 0)) | 
| 528 | > | fp = fopen(hdkfile, "r+"); | 
| 529 | > | else | 
| 530 | > | fp = NULL; | 
| 531 | > | if (fp == NULL) { | 
| 532 | > | if ((fp = fopen(hdkfile, "r")) == NULL) { | 
| 533 | > | sprintf(errmsg, "cannot open \"%s\"", hdkfile); | 
| 534 | > | error(SYSTEM, errmsg); | 
| 535 | > | } | 
| 536 | > | if (ncprocs > 0) { | 
| 537 | > | sprintf(errmsg, | 
| 538 | > | "\"%s\" opened read-only; new rays will be discarded", | 
| 539 | > | hdkfile); | 
| 540 | > | error(WARNING, errmsg); | 
| 541 | > | force = -1; | 
| 542 | > | } | 
| 543 |  | } | 
| 544 |  | /* load variables from header */ | 
| 545 |  | getheader(fp, headline, NULL); | 
| 553 |  | fd = dup(fileno(fp)); | 
| 554 |  | fclose(fp);                             /* done with stdio */ | 
| 555 |  | for (n = 0; nextloc > 0L; n++) {        /* initialize each section */ | 
| 556 | < | lseek(fd, (long)nextloc, 0); | 
| 556 | > | lseek(fd, (off_t)nextloc, SEEK_SET); | 
| 557 |  | read(fd, (char *)&nextloc, sizeof(nextloc)); | 
| 558 |  | hdinit(fd, NULL); | 
| 559 |  | } | 
| 565 |  | } | 
| 566 |  |  | 
| 567 |  |  | 
| 568 | < | done_packets(pl)                /* handle finished packets */ | 
| 569 | < | PACKET  *pl; | 
| 568 | > | extern void | 
| 569 | > | done_packets(           /* handle finished packets */ | 
| 570 | > | PACKET  *pl | 
| 571 | > | ) | 
| 572 |  | { | 
| 573 |  | static int      n2flush = 0; | 
| 574 |  | register PACKET *p; | 
| 576 |  | while (pl != NULL) { | 
| 577 |  | p = pl; pl = p->next; p->next = NULL; | 
| 578 |  | if (p->nr > 0) {                /* add to holodeck */ | 
| 579 | < | bcopy((char *)p->ra, | 
| 580 | < | (char *)hdnewrays(hdlist[p->hd],p->bi,p->nr), | 
| 579 | > | memcpy( (void *)hdnewrays(hdlist[p->hd],p->bi,p->nr), | 
| 580 | > | (void *)p->ra, | 
| 581 |  | p->nr*sizeof(RAYVAL)); | 
| 582 |  | if (outdev != NULL)     /* display it */ | 
| 583 |  | disp_packet((PACKHEAD *)p); | 
| 584 | < | if (hdcachesize <= 0) { | 
| 521 | < | #if RTFLUSH | 
| 522 | < | if (outdev == NULL) | 
| 523 | < | hdfreebeam(hdlist[p->hd], p->bi); | 
| 524 | < | #endif | 
| 584 | > | if (hdcachesize <= 0) | 
| 585 |  | n2flush++; | 
| 526 | – | } | 
| 586 |  | nraysdone += p->nr; | 
| 587 |  | npacksdone++; | 
| 588 |  | p->nr = 0; | 
| 590 |  | p->next = freepacks;            /* push onto free list */ | 
| 591 |  | freepacks = p; | 
| 592 |  | } | 
| 593 | < | #if MAXQTIME | 
| 535 | < | if (n2flush > 300/MAXQTIME*totqlen) { | 
| 536 | < | #else | 
| 537 | < | if (n2flush > 50*totqlen) { | 
| 538 | < | #endif | 
| 539 | < | #if RTFLUSH | 
| 540 | < | hdsync(NULL, outdev!=NULL);     /* sync beams & directories */ | 
| 541 | < | #else | 
| 593 | > | if (n2flush >= RTFLUSH) { | 
| 594 |  | if (outdev != NULL) | 
| 595 |  | hdsync(NULL, 1); | 
| 596 |  | else | 
| 597 |  | hdflush(NULL); | 
| 546 | – | #endif | 
| 598 |  | n2flush = 0; | 
| 599 |  | } | 
| 600 |  | } | 
| 601 |  |  | 
| 602 |  |  | 
| 603 | < | rootname(rn, fn)                /* remove tail from end of fn */ | 
| 604 | < | register char   *rn, *fn; | 
| 603 | > | static void | 
| 604 | > | rootname(               /* remove tail from end of fn */ | 
| 605 | > | register char   *rn, | 
| 606 | > | register char   *fn | 
| 607 | > | ) | 
| 608 |  | { | 
| 609 |  | char    *tp, *dp; | 
| 610 |  |  | 
| 611 | < | for (tp = NULL, dp = rn; *rn = *fn++; rn++) | 
| 611 | > | for (tp = NULL, dp = rn; (*rn = *fn++); rn++) { | 
| 612 |  | if (*rn == '/') | 
| 613 |  | dp = rn; | 
| 614 |  | else if (*rn == '.') | 
| 615 |  | tp = rn; | 
| 616 | + | } | 
| 617 |  | if (tp != NULL && tp > dp) | 
| 618 |  | *tp = '\0'; | 
| 619 |  | } | 
| 620 |  |  | 
| 621 |  |  | 
| 622 | < | badvalue(vc)                    /* report bad variable value and exit */ | 
| 623 | < | int     vc; | 
| 622 | > | static void | 
| 623 | > | badvalue(                       /* report bad variable value and exit */ | 
| 624 | > | int     vc | 
| 625 | > | ) | 
| 626 |  | { | 
| 627 |  | sprintf(errmsg, "bad value for variable '%s'", vnam(vc)); | 
| 628 |  | error(USER, errmsg); | 
| 629 |  | } | 
| 630 |  |  | 
| 631 |  |  | 
| 632 | + | void | 
| 633 |  | eputs(s)                        /* put error message to stderr */ | 
| 634 |  | register char  *s; | 
| 635 |  | { | 
| 649 |  | } | 
| 650 |  |  | 
| 651 |  |  | 
| 652 | + | void | 
| 653 |  | quit(ec)                        /* exit program gracefully */ | 
| 654 |  | int     ec; | 
| 655 |  | { | 
| 658 |  | if (hdlist[0] != NULL) {        /* close holodeck */ | 
| 659 |  | if (nprocs > 0) | 
| 660 |  | status = done_rtrace();         /* calls hdsync() */ | 
| 661 | < | if (ncprocs > 0 && vdef(REPORT)) { | 
| 662 | < | long    fsiz, fuse; | 
| 661 | > | if ((ncprocs > 0) & (force >= 0) && vdef(REPORT)) { | 
| 662 | > | off_t   fsiz, fuse; | 
| 663 |  | fsiz = hdfilen(hdlist[0]->fd); | 
| 664 | < | fuse = hdfiluse(hdlist[0]->fd, 1); | 
| 664 | > | fuse = hdfiluse(hdlist[0]->fd); | 
| 665 |  | fprintf(stderr, | 
| 666 |  | "%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n", | 
| 667 |  | hdkfile, fsiz/(1024.*1024.), |