| 1 |
/* Copyright (c) 1997 Silicon Graphics, Inc. */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ SGI"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* Radiance holodeck generation controller |
| 9 |
*/ |
| 10 |
|
| 11 |
#include "rholo.h" |
| 12 |
#include "paths.h" |
| 13 |
#include <sys/types.h> |
| 14 |
|
| 15 |
/* the following must be consistent with rholo.h */ |
| 16 |
int NVARS = NRHVARS; /* total number of variables */ |
| 17 |
|
| 18 |
VARIABLE vv[] = RHVINIT; /* variable-value pairs */ |
| 19 |
|
| 20 |
char *progname; /* our program name */ |
| 21 |
char *hdkfile; /* holodeck file name */ |
| 22 |
char froot[MAXPATH]; /* root file name */ |
| 23 |
|
| 24 |
int nowarn = 0; /* turn warnings off? */ |
| 25 |
|
| 26 |
double expval = 1.; /* global exposure value */ |
| 27 |
|
| 28 |
int ncprocs = 0; /* desired number of compute processes */ |
| 29 |
|
| 30 |
char *outdev = NULL; /* output device name */ |
| 31 |
|
| 32 |
time_t starttime; /* time we got started */ |
| 33 |
time_t endtime; /* time we should end by */ |
| 34 |
time_t reporttime; /* time for next report */ |
| 35 |
|
| 36 |
long maxdisk; /* maximum file space (bytes) */ |
| 37 |
|
| 38 |
int rtargc = 1; /* rtrace command */ |
| 39 |
char *rtargv[128] = {"rtrace", NULL}; |
| 40 |
|
| 41 |
long nraysdone = 0L; /* number of rays done */ |
| 42 |
long npacksdone = 0L; /* number of packets done */ |
| 43 |
|
| 44 |
PACKET *freepacks; /* available packets */ |
| 45 |
|
| 46 |
extern time_t time(); |
| 47 |
|
| 48 |
|
| 49 |
main(argc, argv) |
| 50 |
int argc; |
| 51 |
char *argv[]; |
| 52 |
{ |
| 53 |
HDGRID hdg; |
| 54 |
int i; |
| 55 |
int force = 0; |
| 56 |
/* mark start time */ |
| 57 |
starttime = time(NULL); |
| 58 |
progname = argv[0]; /* get arguments */ |
| 59 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
| 60 |
switch (argv[i][1]) { |
| 61 |
case 'w': /* turn off warnings */ |
| 62 |
nowarn++; |
| 63 |
break; |
| 64 |
case 'f': /* force overwrite */ |
| 65 |
force++; |
| 66 |
break; |
| 67 |
case 'n': /* compute processes */ |
| 68 |
if (i >= argc-2) |
| 69 |
goto userr; |
| 70 |
ncprocs = atoi(argv[++i]); |
| 71 |
break; |
| 72 |
case 'o': /* output display */ |
| 73 |
if (i >= argc-2) |
| 74 |
goto userr; |
| 75 |
outdev = argv[++i]; |
| 76 |
break; |
| 77 |
default: |
| 78 |
goto userr; |
| 79 |
} |
| 80 |
/* do we have a job? */ |
| 81 |
if (outdev == NULL && ncprocs <= 0) |
| 82 |
goto userr; |
| 83 |
/* get root file name */ |
| 84 |
rootname(froot, hdkfile=argv[i++]); |
| 85 |
/* load... */ |
| 86 |
if (i < argc) { /* variables */ |
| 87 |
loadvars(argv[i++]); |
| 88 |
/* cmdline settings */ |
| 89 |
for ( ; i < argc; i++) |
| 90 |
if (setvariable(argv[i], matchvar) < 0) { |
| 91 |
sprintf(errmsg, "unknown variable: %s", |
| 92 |
argv[i]); |
| 93 |
error(USER, errmsg); |
| 94 |
} |
| 95 |
/* check settings */ |
| 96 |
checkvalues(); |
| 97 |
/* load RIF if any */ |
| 98 |
if (vdef(RIF)) |
| 99 |
getradfile(vval(RIF)); |
| 100 |
/* set defaults */ |
| 101 |
setdefaults(&hdg); |
| 102 |
/* holodeck exists? */ |
| 103 |
if (!force && access(hdkfile, R_OK|W_OK) == 0) |
| 104 |
error(USER, |
| 105 |
"holodeck file exists -- use -f to overwrite"); |
| 106 |
/* create holodeck */ |
| 107 |
creatholo(&hdg); |
| 108 |
} else { /* else load holodeck */ |
| 109 |
loadholo(); |
| 110 |
if (vdef(RIF)) /* load RIF if any */ |
| 111 |
getradfile(vval(RIF)); |
| 112 |
} |
| 113 |
/* initialize */ |
| 114 |
initrholo(); |
| 115 |
/* run */ |
| 116 |
while (rholo()) |
| 117 |
; |
| 118 |
/* done */ |
| 119 |
quit(0); |
| 120 |
userr: |
| 121 |
fprintf(stderr, |
| 122 |
"Usage: %s {-n nprocs|-o disp} [-w][-f] output.hdk [control.hif [VAR=val ..]]\n", |
| 123 |
progname); |
| 124 |
quit(1); |
| 125 |
} |
| 126 |
|
| 127 |
|
| 128 |
initrholo() /* get our holodeck running */ |
| 129 |
{ |
| 130 |
extern int global_packet(); |
| 131 |
register int i; |
| 132 |
|
| 133 |
if (outdev != NULL) /* open output device */ |
| 134 |
disp_open(outdev); |
| 135 |
else if (ncprocs > 0) /* else use global ray feed */ |
| 136 |
init_global(); |
| 137 |
/* record disk space limit */ |
| 138 |
if (!vdef(DISKSPACE)) |
| 139 |
maxdisk = 0; |
| 140 |
else |
| 141 |
maxdisk = 1024.*1024.*vflt(DISKSPACE); |
| 142 |
/* record end time */ |
| 143 |
if (!vdef(TIME) || vflt(TIME) <= FTINY) |
| 144 |
endtime = 0; |
| 145 |
else |
| 146 |
endtime = starttime + vflt(TIME)*3600.; |
| 147 |
/* set up memory cache */ |
| 148 |
if (outdev == NULL) |
| 149 |
hdcachesize = 0; /* manual flushing */ |
| 150 |
else if (vdef(CACHE)) |
| 151 |
hdcachesize = 1024.*1024.*vflt(CACHE); |
| 152 |
/* open report file */ |
| 153 |
if (vdef(REPORT)) { |
| 154 |
register char *s = sskip2(vval(REPORT), 1); |
| 155 |
if (*s && freopen(s, "a", stderr) == NULL) |
| 156 |
quit(2); |
| 157 |
} |
| 158 |
/* start rtrace */ |
| 159 |
if (ncprocs > 0) { |
| 160 |
i = start_rtrace(); |
| 161 |
if (i < 1) |
| 162 |
error(USER, "cannot start rtrace process"); |
| 163 |
if (vdef(REPORT)) { /* make first report */ |
| 164 |
printargs(rtargc, rtargv, stderr); |
| 165 |
report(0); |
| 166 |
} |
| 167 |
/* allocate packets */ |
| 168 |
freepacks = (PACKET *)bmalloc(i*sizeof(PACKET)); |
| 169 |
if (freepacks == NULL) |
| 170 |
goto memerr; |
| 171 |
freepacks[--i].nr = 0; |
| 172 |
freepacks[i].next = NULL; |
| 173 |
if (!vbool(OBSTRUCTIONS)) { |
| 174 |
freepacks[i].offset = (float *)bmalloc( |
| 175 |
RPACKSIZ*sizeof(float)*(i+1) ); |
| 176 |
if (freepacks[i].offset == NULL) |
| 177 |
goto memerr; |
| 178 |
} else |
| 179 |
freepacks[i].offset = NULL; |
| 180 |
while (i--) { |
| 181 |
freepacks[i].nr = 0; |
| 182 |
freepacks[i].offset = freepacks[i+1].offset == NULL ? |
| 183 |
NULL : freepacks[i+1].offset+RPACKSIZ ; |
| 184 |
freepacks[i].next = &freepacks[i+1]; |
| 185 |
} |
| 186 |
} |
| 187 |
return; |
| 188 |
memerr: |
| 189 |
error(SYSTEM, "out of memory in initrholo"); |
| 190 |
} |
| 191 |
|
| 192 |
|
| 193 |
rholo() /* holodeck main loop */ |
| 194 |
{ |
| 195 |
static int idle = 1; |
| 196 |
PACKET *pl = NULL, *plend; |
| 197 |
register PACKET *p; |
| 198 |
time_t t; |
| 199 |
long l; |
| 200 |
|
| 201 |
if (outdev != NULL) /* check display */ |
| 202 |
if (!disp_check(idle)) |
| 203 |
return(0); |
| 204 |
/* display only? */ |
| 205 |
if (ncprocs <= 0) |
| 206 |
return(1); |
| 207 |
/* check file size */ |
| 208 |
if (maxdisk > 0 && hdfilen(hdlist[0]->fd) >= maxdisk) { |
| 209 |
error(WARNING, "file limit exceeded"); |
| 210 |
return(0); |
| 211 |
} |
| 212 |
/* check time */ |
| 213 |
if (endtime > 0 || reporttime > 0) |
| 214 |
t = time(NULL); |
| 215 |
if (endtime > 0 && t >= endtime) { |
| 216 |
error(WARNING, "time limit exceeded"); |
| 217 |
return(0); |
| 218 |
} |
| 219 |
if (reporttime > 0 && t >= reporttime) |
| 220 |
report(t); |
| 221 |
/* get packets to process */ |
| 222 |
while (freepacks != NULL) { |
| 223 |
p = freepacks; freepacks = p->next; p->next = NULL; |
| 224 |
if (!next_packet(p)) { |
| 225 |
p->next = freepacks; freepacks = p; |
| 226 |
break; |
| 227 |
} |
| 228 |
if (pl == NULL) pl = p; |
| 229 |
else plend->next = p; |
| 230 |
plend = p; |
| 231 |
} |
| 232 |
idle = pl == NULL && freepacks != NULL; |
| 233 |
/* are we out of stuff to do? */ |
| 234 |
if (idle && outdev == NULL) |
| 235 |
return(0); |
| 236 |
/* else process packets */ |
| 237 |
done_packets(do_packets(pl)); |
| 238 |
return(1); /* and continue */ |
| 239 |
} |
| 240 |
|
| 241 |
|
| 242 |
report(t) /* report progress so far */ |
| 243 |
time_t t; |
| 244 |
{ |
| 245 |
if (t == 0) |
| 246 |
t = time(NULL); |
| 247 |
fprintf(stderr, "%s: %ld packets (%ld rays) done after %.2f hours\n", |
| 248 |
progname, npacksdone, nraysdone, (t-starttime)/3600.); |
| 249 |
fflush(stderr); |
| 250 |
if (vdef(REPORT)) |
| 251 |
reporttime = t + (time_t)(vflt(REPORT)*60.+.5); |
| 252 |
} |
| 253 |
|
| 254 |
|
| 255 |
setdefaults(gp) /* set default values */ |
| 256 |
register HDGRID *gp; |
| 257 |
{ |
| 258 |
extern char *atos(); |
| 259 |
register int i; |
| 260 |
double len[3], maxlen, d; |
| 261 |
char buf[64]; |
| 262 |
|
| 263 |
if (!vdef(SECTION)) { |
| 264 |
sprintf(errmsg, "%s must be defined", vnam(SECTION)); |
| 265 |
error(USER, errmsg); |
| 266 |
} |
| 267 |
if (vdef(SECTION) > 1) { |
| 268 |
sprintf(errmsg, "ignoring all but first %s", vnam(SECTION)); |
| 269 |
error(WARNING, errmsg); |
| 270 |
} |
| 271 |
if (sscanf(vval(SECTION), |
| 272 |
"%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf", |
| 273 |
&gp->orig[0], &gp->orig[1], &gp->orig[2], |
| 274 |
&gp->xv[0][0], &gp->xv[0][1], &gp->xv[0][2], |
| 275 |
&gp->xv[1][0], &gp->xv[1][1], &gp->xv[1][2], |
| 276 |
&gp->xv[2][0], &gp->xv[2][1], &gp->xv[2][2]) != 12) |
| 277 |
badvalue(SECTION); |
| 278 |
maxlen = 0.; |
| 279 |
for (i = 0; i < 3; i++) |
| 280 |
if ((len[i] = VLEN(gp->xv[i])) > maxlen) |
| 281 |
maxlen = len[i]; |
| 282 |
if (!vdef(GRID)) { |
| 283 |
sprintf(buf, "%.4f", maxlen/8.); |
| 284 |
vval(GRID) = savqstr(buf); |
| 285 |
vdef(GRID)++; |
| 286 |
} |
| 287 |
if ((d = vflt(GRID)) <= FTINY) |
| 288 |
badvalue(GRID); |
| 289 |
for (i = 0; i < 3; i++) |
| 290 |
gp->grid[i] = len[i]/d + (1.-FTINY); |
| 291 |
if (!vdef(EXPOSURE)) { |
| 292 |
sprintf(errmsg, "%s must be defined", vnam(EXPOSURE)); |
| 293 |
error(USER, errmsg); |
| 294 |
} |
| 295 |
expval = vval(EXPOSURE)[0] == '-' || vval(EXPOSURE)[0] == '+' ? |
| 296 |
pow(2., vflt(EXPOSURE)) : vflt(EXPOSURE); |
| 297 |
if (!vdef(OCTREE)) { |
| 298 |
if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL) |
| 299 |
error(SYSTEM, "out of memory"); |
| 300 |
sprintf(vval(OCTREE), "%s.oct", froot); |
| 301 |
vdef(OCTREE)++; |
| 302 |
} |
| 303 |
if (!vdef(OBSTRUCTIONS)) { |
| 304 |
vval(OBSTRUCTIONS) = "T"; |
| 305 |
vdef(OBSTRUCTIONS)++; |
| 306 |
} |
| 307 |
if (!vdef(OCCUPANCY)) { |
| 308 |
vval(OCCUPANCY) = "U"; |
| 309 |
vdef(OCCUPANCY)++; |
| 310 |
} |
| 311 |
/* append rendering options */ |
| 312 |
if (vdef(RENDER)) |
| 313 |
rtargc += wordstring(rtargv+rtargc, vval(RENDER)); |
| 314 |
} |
| 315 |
|
| 316 |
|
| 317 |
creatholo(gp) /* create a holodeck output file */ |
| 318 |
HDGRID *gp; |
| 319 |
{ |
| 320 |
long endloc = 0; |
| 321 |
FILE *fp; |
| 322 |
/* open & truncate file */ |
| 323 |
if ((fp = fopen(hdkfile, "w+")) == NULL) { |
| 324 |
sprintf(errmsg, "cannot open \"%s\" for writing", hdkfile); |
| 325 |
error(SYSTEM, errmsg); |
| 326 |
} |
| 327 |
/* write information header */ |
| 328 |
newheader("RADIANCE", fp); |
| 329 |
printvars(fp); |
| 330 |
fputformat(HOLOFMT, fp); |
| 331 |
fputc('\n', fp); |
| 332 |
putw(HOLOMAGIC, fp); /* put magic number & terminus */ |
| 333 |
fwrite(&endloc, sizeof(long), 1, fp); |
| 334 |
fflush(fp); /* flush buffer */ |
| 335 |
hdinit(fileno(fp), gp); /* allocate and initialize index */ |
| 336 |
/* we're dropping fp here.... */ |
| 337 |
} |
| 338 |
|
| 339 |
|
| 340 |
headline(s) /* process information header line */ |
| 341 |
char *s; |
| 342 |
{ |
| 343 |
extern char FMTSTR[]; |
| 344 |
register char *cp; |
| 345 |
char fmt[32]; |
| 346 |
|
| 347 |
if (formatval(fmt, s)) { |
| 348 |
if (strcmp(fmt, HOLOFMT)) { |
| 349 |
sprintf(errmsg, "%s file \"%s\" has %s%s", |
| 350 |
HOLOFMT, hdkfile, FMTSTR, fmt); |
| 351 |
error(USER, errmsg); |
| 352 |
} |
| 353 |
return; |
| 354 |
} |
| 355 |
for (cp = s; *cp; cp++) /* take off any comments */ |
| 356 |
if (*cp == '#') { |
| 357 |
*cp = '\0'; |
| 358 |
break; |
| 359 |
} |
| 360 |
setvariable(s, matchvar); /* don't flag errors */ |
| 361 |
} |
| 362 |
|
| 363 |
|
| 364 |
loadholo() /* start loading a holodeck from fname */ |
| 365 |
{ |
| 366 |
FILE *fp; |
| 367 |
long endloc; |
| 368 |
/* open holodeck file */ |
| 369 |
if ((fp = fopen(hdkfile, ncprocs>0 ? "r+" : "r")) == NULL) { |
| 370 |
sprintf(errmsg, "cannot open \"%s\" for %s", hdkfile, |
| 371 |
ncprocs>0 ? "appending" : "reading"); |
| 372 |
error(SYSTEM, errmsg); |
| 373 |
} |
| 374 |
/* load variables from header */ |
| 375 |
getheader(fp, headline, NULL); |
| 376 |
/* check magic number */ |
| 377 |
if (getw(fp) != HOLOMAGIC) { |
| 378 |
sprintf(errmsg, "bad magic number in holodeck file \"%s\"", |
| 379 |
hdkfile); |
| 380 |
error(USER, errmsg); |
| 381 |
} |
| 382 |
fread(&endloc, sizeof(long), 1, fp); |
| 383 |
if (endloc != 0) |
| 384 |
error(WARNING, "ignoring multiple sections in holodeck file"); |
| 385 |
fseek(fp, 0L, 1); /* align system file pointer */ |
| 386 |
hdinit(fileno(fp), NULL); /* allocate and load index */ |
| 387 |
/* we're dropping fp here.... */ |
| 388 |
} |
| 389 |
|
| 390 |
|
| 391 |
done_packets(pl) /* handle finished packets */ |
| 392 |
PACKET *pl; |
| 393 |
{ |
| 394 |
static int nunflushed = 0; |
| 395 |
register PACKET *p; |
| 396 |
|
| 397 |
while (pl != NULL) { |
| 398 |
p = pl; pl = p->next; p->next = NULL; |
| 399 |
if (p->nr > 0) { /* add to holodeck */ |
| 400 |
bcopy((char *)p->ra, |
| 401 |
(char *)hdnewrays(hdlist[p->hd],p->bi,p->nr), |
| 402 |
p->nr*sizeof(RAYVAL)); |
| 403 |
if (outdev != NULL) /* display it */ |
| 404 |
disp_packet((PACKHEAD *)p); |
| 405 |
else |
| 406 |
nunflushed += p->nr; |
| 407 |
nraysdone += p->nr; |
| 408 |
npacksdone++; |
| 409 |
} |
| 410 |
p->nr = 0; /* push onto free list */ |
| 411 |
p->next = freepacks; |
| 412 |
freepacks = p; |
| 413 |
} |
| 414 |
if (nunflushed >= 256*RPACKSIZ) { |
| 415 |
hdflush(NULL); /* flush holodeck buffers */ |
| 416 |
nunflushed = 0; |
| 417 |
} |
| 418 |
} |
| 419 |
|
| 420 |
|
| 421 |
getradfile(rfargs) /* run rad and get needed variables */ |
| 422 |
char *rfargs; |
| 423 |
{ |
| 424 |
static short mvar[] = {OCTREE,EXPOSURE,-1}; |
| 425 |
static char tf1[] = TEMPLATE; |
| 426 |
char tf2[64]; |
| 427 |
char combuf[256]; |
| 428 |
char *pippt; |
| 429 |
register int i; |
| 430 |
register char *cp; |
| 431 |
/* create rad command */ |
| 432 |
mktemp(tf1); |
| 433 |
sprintf(tf2, "%s.rif", tf1); |
| 434 |
sprintf(combuf, |
| 435 |
"rad -v 0 -s -e -w %s OPTFILE=%s | egrep '^[ \t]*(NOMATCH", |
| 436 |
rfargs, tf1); |
| 437 |
cp = combuf; |
| 438 |
while (*cp){ |
| 439 |
if (*cp == '|') pippt = cp; |
| 440 |
cp++; |
| 441 |
} /* match unset variables */ |
| 442 |
for (i = 0; mvar[i] >= 0; i++) |
| 443 |
if (!vdef(mvar[i])) { |
| 444 |
*cp++ = '|'; |
| 445 |
strcpy(cp, vnam(mvar[i])); |
| 446 |
while (*cp) cp++; |
| 447 |
pippt = NULL; |
| 448 |
} |
| 449 |
if (pippt != NULL) |
| 450 |
strcpy(pippt, "> /dev/null"); /* nothing to match */ |
| 451 |
else |
| 452 |
sprintf(cp, ")[ \t]*=' > %s", tf2); |
| 453 |
if (system(combuf)) { |
| 454 |
error(SYSTEM, "cannot execute rad command"); |
| 455 |
unlink(tf2); /* clean up */ |
| 456 |
unlink(tf1); |
| 457 |
quit(1); |
| 458 |
} |
| 459 |
if (pippt == NULL) { |
| 460 |
loadvars(tf2); /* load variables */ |
| 461 |
unlink(tf2); |
| 462 |
} |
| 463 |
rtargc += wordfile(rtargv+rtargc, tf1); /* get rtrace options */ |
| 464 |
unlink(tf1); /* clean up */ |
| 465 |
} |
| 466 |
|
| 467 |
|
| 468 |
rootname(rn, fn) /* remove tail from end of fn */ |
| 469 |
register char *rn, *fn; |
| 470 |
{ |
| 471 |
char *tp, *dp; |
| 472 |
|
| 473 |
for (tp = NULL, dp = rn; *rn = *fn++; rn++) |
| 474 |
if (ISDIRSEP(*rn)) |
| 475 |
dp = rn; |
| 476 |
else if (*rn == '.') |
| 477 |
tp = rn; |
| 478 |
if (tp != NULL && tp > dp) |
| 479 |
*tp = '\0'; |
| 480 |
} |
| 481 |
|
| 482 |
|
| 483 |
badvalue(vc) /* report bad variable value and exit */ |
| 484 |
int vc; |
| 485 |
{ |
| 486 |
sprintf(errmsg, "bad value for variable '%s'", vnam(vc)); |
| 487 |
error(USER, errmsg); |
| 488 |
} |
| 489 |
|
| 490 |
|
| 491 |
eputs(s) /* put error message to stderr */ |
| 492 |
register char *s; |
| 493 |
{ |
| 494 |
static int midline = 0; |
| 495 |
|
| 496 |
if (!*s) |
| 497 |
return; |
| 498 |
if (!midline++) { /* prepend line with program name */ |
| 499 |
fputs(progname, stderr); |
| 500 |
fputs(": ", stderr); |
| 501 |
} |
| 502 |
fputs(s, stderr); |
| 503 |
if (s[strlen(s)-1] == '\n') { |
| 504 |
fflush(stderr); |
| 505 |
midline = 0; |
| 506 |
} |
| 507 |
} |
| 508 |
|
| 509 |
|
| 510 |
wputs(s) /* put warning string to stderr */ |
| 511 |
char *s; |
| 512 |
{ |
| 513 |
if (!nowarn) |
| 514 |
eputs(s); |
| 515 |
} |
| 516 |
|
| 517 |
|
| 518 |
quit(ec) /* exit program gracefully */ |
| 519 |
int ec; |
| 520 |
{ |
| 521 |
int status = 0; |
| 522 |
|
| 523 |
if (outdev != NULL) /* close display */ |
| 524 |
disp_close(); |
| 525 |
if (hdlist[0] != NULL) { /* flush holodeck */ |
| 526 |
if (ncprocs > 0) { |
| 527 |
done_packets(flush_queue()); |
| 528 |
status = end_rtrace(); /* close rtrace */ |
| 529 |
hdflush(NULL); |
| 530 |
if (vdef(REPORT)) { |
| 531 |
long fsiz, fuse; |
| 532 |
report(0); |
| 533 |
fsiz = hdfilen(hdlist[0]->fd); |
| 534 |
fuse = hdfiluse(hdlist[0]->fd, 1); |
| 535 |
fprintf(stderr, |
| 536 |
"%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n", |
| 537 |
hdkfile, fsiz/(1024.*1024.), |
| 538 |
100.*(fsiz-fuse)/fsiz); |
| 539 |
} |
| 540 |
} else |
| 541 |
hdflush(NULL); |
| 542 |
} |
| 543 |
exit(ec ? ec : status); /* exit */ |
| 544 |
} |
