1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rholo.c,v 3.59 2003/06/30 14:59:12 schorsch Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* Radiance holodeck generation controller |
6 |
*/ |
7 |
|
8 |
#include <signal.h> |
9 |
#include <sys/stat.h> |
10 |
#include <string.h> |
11 |
|
12 |
#include "rholo.h" |
13 |
#include "random.h" |
14 |
|
15 |
#ifndef FRAGWARN |
16 |
#define FRAGWARN 20 /* fragmentation for warning (%) */ |
17 |
#endif |
18 |
#ifndef MAXQTIME |
19 |
#define MAXQTIME 5 /* target maximum seconds in queue */ |
20 |
#endif |
21 |
/* manual cache flushing frequency */ |
22 |
#ifndef RTFLUSH |
23 |
#if MAXQTIME |
24 |
#define RTFLUSH (300/MAXQTIME*totqlen) /* <= 5 minutes */ |
25 |
#else |
26 |
#define RTFLUSH (50*totqlen) /* just guess */ |
27 |
#endif |
28 |
#endif |
29 |
/* the following must be consistent with rholo.h */ |
30 |
int NVARS = NRHVARS; /* total number of variables */ |
31 |
|
32 |
VARIABLE vv[] = RHVINIT; /* variable-value pairs */ |
33 |
|
34 |
char *progname; /* our program name */ |
35 |
char *hdkfile; /* holodeck file name */ |
36 |
char froot[256]; /* root file name */ |
37 |
|
38 |
int ncprocs = 0; /* desired number of compute processes */ |
39 |
|
40 |
char *outdev = NULL; /* output device name */ |
41 |
|
42 |
int readinp = 0; /* read commands from stdin */ |
43 |
|
44 |
int force = 0; /* allow overwrite of holodeck (-1 == read-only) */ |
45 |
|
46 |
time_t starttime; /* time we got started */ |
47 |
time_t endtime; /* time we should end by */ |
48 |
time_t reporttime; /* time for next report */ |
49 |
|
50 |
off_t maxdisk; /* maximum file space (bytes) */ |
51 |
|
52 |
int rtargc = 1; /* rtrace command */ |
53 |
char *rtargv[128] = {"rtrace", NULL}; |
54 |
|
55 |
int orig_mode = -1; /* original file mode (-1 if unchanged) */ |
56 |
|
57 |
long nraysdone = 0L; /* number of rays done */ |
58 |
long npacksdone = 0L; /* number of packets done */ |
59 |
|
60 |
PACKET *freepacks; /* available packets */ |
61 |
int totqlen; /* maximum queue length (number of packets) */ |
62 |
|
63 |
char *sigerr[NSIG]; /* signal error messages */ |
64 |
|
65 |
extern int nowarn; /* turn warnings off? */ |
66 |
|
67 |
extern time_t time(); |
68 |
|
69 |
|
70 |
main(argc, argv) |
71 |
int argc; |
72 |
char *argv[]; |
73 |
{ |
74 |
int i; |
75 |
|
76 |
initurand(16384); /* initialize urand */ |
77 |
progname = argv[0]; /* get arguments */ |
78 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
79 |
switch (argv[i][1]) { |
80 |
case 'w': /* turn off warnings */ |
81 |
nowarn++; |
82 |
break; |
83 |
case 'f': /* force overwrite */ |
84 |
force = 1; |
85 |
break; |
86 |
case 'r': /* read-only mode */ |
87 |
force = -1; |
88 |
break; |
89 |
case 'i': /* read input from stdin */ |
90 |
readinp++; |
91 |
break; |
92 |
case 'n': /* compute processes */ |
93 |
if (i >= argc-2) |
94 |
goto userr; |
95 |
ncprocs = atoi(argv[++i]); |
96 |
break; |
97 |
case 'o': /* output display */ |
98 |
if (i >= argc-2) |
99 |
goto userr; |
100 |
outdev = argv[++i]; |
101 |
break; |
102 |
default: |
103 |
goto userr; |
104 |
} |
105 |
/* get root file name */ |
106 |
if (i >= argc) |
107 |
goto userr; |
108 |
rootname(froot, hdkfile=argv[i++]); |
109 |
/* load variables? */ |
110 |
if (i < argc) |
111 |
if (argv[i][0] != '-' && argv[i][0] != '+') |
112 |
loadvars(argv[i]); /* load variables from file */ |
113 |
|
114 |
if (i >= argc || argv[i][0] == '+') |
115 |
loadholo(); /* load existing holodeck */ |
116 |
|
117 |
while (++i < argc) /* get command line settings */ |
118 |
if (setvariable(argv[i], matchvar) < 0) { |
119 |
sprintf(errmsg, "unknown variable: %s", argv[i]); |
120 |
error(USER, errmsg); |
121 |
} |
122 |
/* check settings */ |
123 |
checkvalues(); |
124 |
/* load rad input file */ |
125 |
getradfile(); |
126 |
|
127 |
if (hdlist[0] == NULL) { /* create new holodeck */ |
128 |
HDGRID hdg[HDMAX]; |
129 |
/* set defaults */ |
130 |
setdefaults(hdg); |
131 |
/* check read-only */ |
132 |
if (force < 0) |
133 |
error(USER, "cannot create read-only holodeck"); |
134 |
/* holodeck exists? */ |
135 |
if (!force && access(hdkfile, R_OK|W_OK) == 0) |
136 |
error(USER, |
137 |
"holodeck file exists -- use -f to overwrite"); |
138 |
/* create holodeck */ |
139 |
creatholo(hdg); |
140 |
} else /* else just set defaults */ |
141 |
setdefaults(NULL); |
142 |
/* initialize */ |
143 |
initrholo(); |
144 |
/* main loop */ |
145 |
while (rholo()) |
146 |
; |
147 |
/* done */ |
148 |
quit(0); |
149 |
userr: |
150 |
fprintf(stderr, |
151 |
"Usage: %s [-n nprocs][-o disp][-w][-r|-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", |
152 |
progname); |
153 |
quit(1); |
154 |
} |
155 |
|
156 |
|
157 |
void |
158 |
onsig(signo) /* fatal signal */ |
159 |
int signo; |
160 |
{ |
161 |
static int gotsig = 0; |
162 |
|
163 |
if (gotsig > 1) /* we're going as fast as we can! */ |
164 |
return; |
165 |
if (gotsig++) { /* two signals and we split */ |
166 |
hdsync(NULL, 0); /* don't leave w/o saying goodbye */ |
167 |
_exit(signo); |
168 |
} |
169 |
alarm(300); /* allow 5 minutes to clean up */ |
170 |
eputs("signal - "); |
171 |
eputs(sigerr[signo]); |
172 |
eputs("\n"); |
173 |
quit(3); |
174 |
} |
175 |
|
176 |
|
177 |
sigdie(signo, msg) /* set fatal signal */ |
178 |
int signo; |
179 |
char *msg; |
180 |
{ |
181 |
if (signal(signo, onsig) == SIG_IGN) |
182 |
signal(signo, SIG_IGN); |
183 |
sigerr[signo] = msg; |
184 |
} |
185 |
|
186 |
|
187 |
int |
188 |
resfmode(fd, mod) /* restrict open file access mode */ |
189 |
int fd, mod; |
190 |
{ |
191 |
struct stat stbuf; |
192 |
/* get original mode */ |
193 |
if (fstat(fd, &stbuf) < 0) |
194 |
error(SYSTEM, "cannot stat open holodeck file"); |
195 |
mod &= stbuf.st_mode; /* always more restrictive */ |
196 |
if (mod == (stbuf.st_mode & 0777)) |
197 |
return(-1); /* already set */ |
198 |
/* else change it */ |
199 |
if (fchmod(fd, mod) < 0) { |
200 |
error(WARNING, "cannot change holodeck file access mode"); |
201 |
return(-1); |
202 |
} |
203 |
return(stbuf.st_mode); /* return original mode */ |
204 |
} |
205 |
|
206 |
|
207 |
initrholo() /* get our holodeck running */ |
208 |
{ |
209 |
extern int global_packet(); |
210 |
register int i; |
211 |
/* close holodeck on exec() */ |
212 |
fcntl(hdlist[0]->fd, F_SETFD, FD_CLOEXEC); |
213 |
|
214 |
if (outdev != NULL) /* open output device */ |
215 |
disp_open(outdev); |
216 |
else if (ncprocs > 0) /* else use global ray feed */ |
217 |
init_global(); |
218 |
/* record disk space limit */ |
219 |
if (!vdef(DISKSPACE)) |
220 |
maxdisk = ((off_t)1<<(sizeof(off_t)*8-2)) - 1024; |
221 |
else |
222 |
maxdisk = 1024.*1024.*vflt(DISKSPACE); |
223 |
/* set up memory cache */ |
224 |
if (outdev == NULL) |
225 |
hdcachesize = 0; /* manual flushing */ |
226 |
else if (vdef(CACHE)) |
227 |
hdcachesize = 1024.*1024.*vflt(CACHE); |
228 |
/* open report file */ |
229 |
if (vdef(REPORT)) { |
230 |
register char *s = sskip2(vval(REPORT), 1); |
231 |
if (*s && freopen(s, "a", stderr) == NULL) |
232 |
quit(2); |
233 |
} |
234 |
/* mark the starting time */ |
235 |
starttime = time(NULL); |
236 |
/* compute end time */ |
237 |
if (!vdef(TIME) || vflt(TIME) <= FTINY) |
238 |
endtime = 0; |
239 |
else |
240 |
endtime = starttime + vflt(TIME)*3600. + .5; |
241 |
/* start rtrace */ |
242 |
if (ncprocs > 0) { |
243 |
totqlen = i = start_rtrace(); |
244 |
if (i < 1) |
245 |
error(USER, "cannot start rtrace process(es)"); |
246 |
if (vdef(REPORT)) { /* make first report */ |
247 |
printargs(rtargc, rtargv, stderr); |
248 |
report(0); |
249 |
} |
250 |
/* allocate packets */ |
251 |
freepacks = (PACKET *)bmalloc(i*sizeof(PACKET)); |
252 |
if (freepacks == NULL) |
253 |
goto memerr; |
254 |
freepacks[--i].nr = 0; |
255 |
freepacks[i].next = NULL; |
256 |
if (!vdef(OBSTRUCTIONS) || !vbool(OBSTRUCTIONS)) { |
257 |
freepacks[i].offset = (float *)bmalloc( |
258 |
RPACKSIZ*sizeof(float)*(i+1) ); |
259 |
if (freepacks[i].offset == NULL) |
260 |
goto memerr; |
261 |
} else |
262 |
freepacks[i].offset = NULL; |
263 |
while (i--) { |
264 |
freepacks[i].nr = 0; |
265 |
freepacks[i].offset = freepacks[i+1].offset == NULL ? |
266 |
NULL : freepacks[i+1].offset+RPACKSIZ ; |
267 |
freepacks[i].next = &freepacks[i+1]; |
268 |
} |
269 |
} |
270 |
/* set up signal handling */ |
271 |
sigdie(SIGINT, "Interrupt"); |
272 |
sigdie(SIGHUP, "Hangup"); |
273 |
sigdie(SIGTERM, "Terminate"); |
274 |
sigdie(SIGPIPE, "Broken pipe"); |
275 |
sigdie(SIGALRM, "Alarm clock"); |
276 |
#ifdef SIGXCPU |
277 |
sigdie(SIGXCPU, "CPU limit exceeded"); |
278 |
sigdie(SIGXFSZ, "File size exceeded"); |
279 |
#endif |
280 |
/* protect holodeck file */ |
281 |
orig_mode = resfmode(hdlist[0]->fd, (ncprocs>0) & (force>=0) ? 0 : 0444); |
282 |
return; |
283 |
memerr: |
284 |
error(SYSTEM, "out of memory in initrholo"); |
285 |
} |
286 |
|
287 |
|
288 |
rholo() /* holodeck main loop */ |
289 |
{ |
290 |
static long nextfragwarn = 100*(1L<<20); |
291 |
static int idle = 0; |
292 |
PACKET *pl = NULL, *plend; |
293 |
off_t fsiz; |
294 |
int pksiz; |
295 |
register PACKET *p; |
296 |
time_t t; |
297 |
/* check display */ |
298 |
if (nprocs <= 0) |
299 |
idle = 1; |
300 |
if (outdev != NULL) { |
301 |
if (!disp_check(idle)) |
302 |
return(0); /* quit request */ |
303 |
if (nprocs <= 0) |
304 |
return(1); |
305 |
} else if (idle) |
306 |
return(0); /* all done */ |
307 |
fsiz = hdfilen(hdlist[0]->fd); /* check file size */ |
308 |
if (maxdisk > 0 && fsiz >= maxdisk) { |
309 |
error(WARNING, "file limit exceeded"); |
310 |
done_rtrace(); |
311 |
return(1); /* comes back */ |
312 |
} |
313 |
#if FRAGWARN |
314 |
if (fsiz >= nextfragwarn && |
315 |
(fsiz-hdfiluse(hdlist[0]->fd,0))/(fsiz/100) > FRAGWARN) { |
316 |
sprintf(errmsg, "holodeck file fragmentation is %.0f%%", |
317 |
100.*(fsiz-hdfiluse(hdlist[0]->fd,1))/fsiz); |
318 |
error(WARNING, errmsg); |
319 |
nextfragwarn = fsiz + (fsiz>>2); /* decent interval */ |
320 |
} |
321 |
#endif |
322 |
t = time(NULL); /* check time */ |
323 |
if (endtime > 0 && t >= endtime) { |
324 |
error(WARNING, "time limit exceeded"); |
325 |
done_rtrace(); |
326 |
return(1); /* comes back */ |
327 |
} |
328 |
if (reporttime > 0 && t >= reporttime) |
329 |
report(t); |
330 |
/* figure out good packet size */ |
331 |
pksiz = RPACKSIZ; |
332 |
#if MAXQTIME |
333 |
if (!chunkycmp) { |
334 |
pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); |
335 |
if (pksiz < 1) pksiz = 1; |
336 |
else if (pksiz > RPACKSIZ) pksiz = RPACKSIZ; |
337 |
} |
338 |
#endif |
339 |
idle = 0; /* get packets to process */ |
340 |
while (freepacks != NULL) { |
341 |
p = freepacks; freepacks = p->next; p->next = NULL; |
342 |
if (!next_packet(p, pksiz)) { |
343 |
p->next = freepacks; freepacks = p; |
344 |
idle = 1; |
345 |
break; |
346 |
} |
347 |
if (pl == NULL) pl = p; |
348 |
else plend->next = p; |
349 |
plend = p; |
350 |
} |
351 |
/* process packets */ |
352 |
done_packets(do_packets(pl)); |
353 |
return(1); /* and continue */ |
354 |
} |
355 |
|
356 |
|
357 |
setdefaults(gp) /* set default values */ |
358 |
register HDGRID *gp; |
359 |
{ |
360 |
extern char *atos(); |
361 |
register int i; |
362 |
int n; |
363 |
double len[3], d; |
364 |
char buf[64]; |
365 |
|
366 |
if (!vdef(SECTION)) { |
367 |
sprintf(errmsg, "%s must be defined", vnam(SECTION)); |
368 |
error(USER, errmsg); |
369 |
} |
370 |
if (!vdef(OCTREE)) { |
371 |
if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL) |
372 |
error(SYSTEM, "out of memory"); |
373 |
sprintf(vval(OCTREE), "%s.oct", froot); |
374 |
vdef(OCTREE)++; |
375 |
} |
376 |
if (!vdef(VDIST)) { |
377 |
vval(VDIST) = "F"; |
378 |
vdef(VDIST)++; |
379 |
} |
380 |
/* append rendering options */ |
381 |
if (vdef(RENDER)) |
382 |
rtargc += wordstring(rtargv+rtargc, vval(RENDER)); |
383 |
|
384 |
if (gp == NULL) /* already initialized? */ |
385 |
return; |
386 |
/* set grid parameters */ |
387 |
for (n = 0; n < vdef(SECTION); n++, gp++) { |
388 |
gp->grid[0] = gp->grid[1] = gp->grid[2] = 0; |
389 |
if (sscanf(nvalue(SECTION, n), |
390 |
"%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %hd %hd %hd", |
391 |
&gp->orig[0], &gp->orig[1], &gp->orig[2], |
392 |
&gp->xv[0][0], &gp->xv[0][1], &gp->xv[0][2], |
393 |
&gp->xv[1][0], &gp->xv[1][1], &gp->xv[1][2], |
394 |
&gp->xv[2][0], &gp->xv[2][1], &gp->xv[2][2], |
395 |
&gp->grid[0], &gp->grid[1], &gp->grid[2]) < 12) |
396 |
badvalue(SECTION); |
397 |
for (i = 0; i < 3; i++) |
398 |
len[i] = VLEN(gp->xv[i]); |
399 |
if (!vdef(GRID)) { |
400 |
d = 2/2e5*( len[0]*len[0]*(len[1]*len[1] + |
401 |
len[2]*len[2] + 4*len[1]*len[2]) |
402 |
+ len[1]*len[1]*len[2]*(len[2] + 4*len[0]) |
403 |
+ 4*len[0]*len[1]*len[2]*len[2] ); |
404 |
d = sqrt(sqrt(d)); |
405 |
} else if ((d = vflt(GRID)) <= FTINY) |
406 |
badvalue(GRID); |
407 |
for (i = 0; i < 3; i++) |
408 |
if (gp->grid[i] <= 0) |
409 |
gp->grid[i] = len[i]/d + (1.-FTINY); |
410 |
} |
411 |
} |
412 |
|
413 |
|
414 |
creatholo(gp) /* create a holodeck output file */ |
415 |
HDGRID *gp; |
416 |
{ |
417 |
extern char VersionID[]; |
418 |
int32 lastloc, nextloc; |
419 |
int n; |
420 |
int fd; |
421 |
FILE *fp; |
422 |
/* open & truncate file */ |
423 |
if ((fp = fopen(hdkfile, "w+")) == NULL) { |
424 |
sprintf(errmsg, "cannot open \"%s\" for writing", hdkfile); |
425 |
error(SYSTEM, errmsg); |
426 |
} |
427 |
/* write information header */ |
428 |
newheader("RADIANCE", fp); |
429 |
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
430 |
printvars(fp); |
431 |
fputformat(HOLOFMT, fp); |
432 |
fputc('\n', fp); |
433 |
putw(HOLOMAGIC, fp); /* put magic number */ |
434 |
fd = dup(fileno(fp)); |
435 |
fclose(fp); /* flush and close stdio stream */ |
436 |
lastloc = lseek(fd, (off_t)0, 2); |
437 |
for (n = vdef(SECTION); n--; gp++) { /* initialize each section */ |
438 |
nextloc = 0L; |
439 |
write(fd, (char *)&nextloc, sizeof(nextloc)); |
440 |
hdinit(fd, gp); /* writes beam index */ |
441 |
if (!n) |
442 |
break; |
443 |
nextloc = hdfilen(fd); /* write section pointer */ |
444 |
if (lseek(fd, (off_t)lastloc, 0) < 0) |
445 |
error(SYSTEM, |
446 |
"cannot seek on holodeck file in creatholo"); |
447 |
write(fd, (char *)&nextloc, sizeof(nextloc)); |
448 |
lseek(fd, (off_t)(lastloc=nextloc), 0); |
449 |
} |
450 |
} |
451 |
|
452 |
|
453 |
int |
454 |
headline(s) /* process information header line */ |
455 |
char *s; |
456 |
{ |
457 |
extern char FMTSTR[]; |
458 |
register char *cp; |
459 |
char fmt[32]; |
460 |
|
461 |
if (formatval(fmt, s)) { |
462 |
if (strcmp(fmt, HOLOFMT)) { |
463 |
sprintf(errmsg, "%s file \"%s\" has %s%s", |
464 |
HOLOFMT, hdkfile, FMTSTR, fmt); |
465 |
error(USER, errmsg); |
466 |
} |
467 |
return(0); |
468 |
} |
469 |
for (cp = s; *cp; cp++) /* take off any comments */ |
470 |
if (*cp == '#') { |
471 |
*cp = '\0'; |
472 |
break; |
473 |
} |
474 |
setvariable(s, matchvar); /* don't flag errors */ |
475 |
return(0); |
476 |
} |
477 |
|
478 |
|
479 |
loadholo() /* start loading a holodeck from fname */ |
480 |
{ |
481 |
FILE *fp; |
482 |
int fd; |
483 |
int n; |
484 |
int32 nextloc; |
485 |
|
486 |
if ((ncprocs > 0) & (force >= 0)) |
487 |
fp = fopen(hdkfile, "r+"); |
488 |
else |
489 |
fp = NULL; |
490 |
if (fp == NULL) { |
491 |
if ((fp = fopen(hdkfile, "r")) == NULL) { |
492 |
sprintf(errmsg, "cannot open \"%s\"", hdkfile); |
493 |
error(SYSTEM, errmsg); |
494 |
} |
495 |
if (ncprocs > 0) { |
496 |
sprintf(errmsg, |
497 |
"\"%s\" opened read-only; new rays will be discarded", |
498 |
hdkfile); |
499 |
error(WARNING, errmsg); |
500 |
force = -1; |
501 |
} |
502 |
} |
503 |
/* load variables from header */ |
504 |
getheader(fp, headline, NULL); |
505 |
/* check magic number */ |
506 |
if (getw(fp) != HOLOMAGIC) { |
507 |
sprintf(errmsg, "bad magic number in holodeck file \"%s\"", |
508 |
hdkfile); |
509 |
error(USER, errmsg); |
510 |
} |
511 |
nextloc = ftell(fp); /* get stdio position */ |
512 |
fd = dup(fileno(fp)); |
513 |
fclose(fp); /* done with stdio */ |
514 |
for (n = 0; nextloc > 0L; n++) { /* initialize each section */ |
515 |
lseek(fd, (off_t)nextloc, 0); |
516 |
read(fd, (char *)&nextloc, sizeof(nextloc)); |
517 |
hdinit(fd, NULL); |
518 |
} |
519 |
if (n != vdef(SECTION)) { |
520 |
sprintf(errmsg, "number of sections does not match %s setting", |
521 |
vnam(SECTION)); |
522 |
error(WARNING, errmsg); |
523 |
} |
524 |
} |
525 |
|
526 |
|
527 |
done_packets(pl) /* handle finished packets */ |
528 |
PACKET *pl; |
529 |
{ |
530 |
static int n2flush = 0; |
531 |
register PACKET *p; |
532 |
|
533 |
while (pl != NULL) { |
534 |
p = pl; pl = p->next; p->next = NULL; |
535 |
if (p->nr > 0) { /* add to holodeck */ |
536 |
memcpy( (void *)hdnewrays(hdlist[p->hd],p->bi,p->nr), |
537 |
(void *)p->ra, |
538 |
p->nr*sizeof(RAYVAL)); |
539 |
if (outdev != NULL) /* display it */ |
540 |
disp_packet((PACKHEAD *)p); |
541 |
if (hdcachesize <= 0) |
542 |
n2flush++; |
543 |
nraysdone += p->nr; |
544 |
npacksdone++; |
545 |
p->nr = 0; |
546 |
} |
547 |
p->next = freepacks; /* push onto free list */ |
548 |
freepacks = p; |
549 |
} |
550 |
if (n2flush >= RTFLUSH) { |
551 |
if (outdev != NULL) |
552 |
hdsync(NULL, 1); |
553 |
else |
554 |
hdflush(NULL); |
555 |
n2flush = 0; |
556 |
} |
557 |
} |
558 |
|
559 |
|
560 |
rootname(rn, fn) /* remove tail from end of fn */ |
561 |
register char *rn, *fn; |
562 |
{ |
563 |
char *tp, *dp; |
564 |
|
565 |
for (tp = NULL, dp = rn; (*rn = *fn++); rn++) { |
566 |
if (*rn == '/') |
567 |
dp = rn; |
568 |
else if (*rn == '.') |
569 |
tp = rn; |
570 |
} |
571 |
if (tp != NULL && tp > dp) |
572 |
*tp = '\0'; |
573 |
} |
574 |
|
575 |
|
576 |
badvalue(vc) /* report bad variable value and exit */ |
577 |
int vc; |
578 |
{ |
579 |
sprintf(errmsg, "bad value for variable '%s'", vnam(vc)); |
580 |
error(USER, errmsg); |
581 |
} |
582 |
|
583 |
|
584 |
void |
585 |
eputs(s) /* put error message to stderr */ |
586 |
register char *s; |
587 |
{ |
588 |
static int midline = 0; |
589 |
|
590 |
if (!*s) |
591 |
return; |
592 |
if (!midline++) { /* prepend line with program name */ |
593 |
fputs(progname, stderr); |
594 |
fputs(": ", stderr); |
595 |
} |
596 |
fputs(s, stderr); |
597 |
if (s[strlen(s)-1] == '\n') { |
598 |
fflush(stderr); |
599 |
midline = 0; |
600 |
} |
601 |
} |
602 |
|
603 |
|
604 |
void |
605 |
quit(ec) /* exit program gracefully */ |
606 |
int ec; |
607 |
{ |
608 |
int status = 0; |
609 |
|
610 |
if (hdlist[0] != NULL) { /* close holodeck */ |
611 |
if (nprocs > 0) |
612 |
status = done_rtrace(); /* calls hdsync() */ |
613 |
if ((ncprocs > 0) & (force >= 0) && vdef(REPORT)) { |
614 |
off_t fsiz, fuse; |
615 |
fsiz = hdfilen(hdlist[0]->fd); |
616 |
fuse = hdfiluse(hdlist[0]->fd, 1); |
617 |
fprintf(stderr, |
618 |
"%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n", |
619 |
hdkfile, fsiz/(1024.*1024.), |
620 |
100.*(fsiz-fuse)/fsiz); |
621 |
} |
622 |
} |
623 |
if (orig_mode >= 0) /* reset holodeck access mode */ |
624 |
fchmod(hdlist[0]->fd, orig_mode); |
625 |
if (outdev != NULL) /* close display */ |
626 |
disp_close(); |
627 |
exit(ec ? ec : status); /* exit */ |
628 |
} |