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root/radiance/ray/src/hd/rholo.c
Revision: 3.68
Committed: Thu Sep 9 01:41:21 2004 UTC (19 years, 6 months ago) by greg
Content type: text/plain
Branch: MAIN
CVS Tags: rad3R6, rad3R6P1
Changes since 3.67: +12 -9 lines
Log Message:
Reduced frequency of fragmentation checks and improved logic

File Contents

# User Rev Content
1 gregl 3.1 #ifndef lint
2 greg 3.68 static const char RCSid[] = "$Id: rholo.c,v 3.67 2004/09/09 01:06:19 greg Exp $";
3 gregl 3.1 #endif
4     /*
5     * Radiance holodeck generation controller
6     */
7    
8 schorsch 3.64 #include <stdio.h>
9     #include <time.h>
10 schorsch 3.59 #include <signal.h>
11     #include <sys/stat.h>
12     #include <string.h>
13    
14 greg 3.63 #include "platform.h"
15 schorsch 3.64 #include "rterror.h"
16     #include "resolu.h"
17 gregl 3.1 #include "rholo.h"
18 gregl 3.14 #include "random.h"
19 gregl 3.1
20 gwlarson 3.44 #ifndef FRAGWARN
21     #define FRAGWARN 20 /* fragmentation for warning (%) */
22     #endif
23 gregl 3.33 #ifndef MAXQTIME
24     #define MAXQTIME 5 /* target maximum seconds in queue */
25     #endif
26 gwlarson 3.49 /* 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 gregl 3.1 /* the following must be consistent with rholo.h */
35     int NVARS = NRHVARS; /* total number of variables */
36    
37     VARIABLE vv[] = RHVINIT; /* variable-value pairs */
38    
39     char *progname; /* our program name */
40     char *hdkfile; /* holodeck file name */
41 gregl 3.22 char froot[256]; /* root file name */
42 gregl 3.1
43     int ncprocs = 0; /* desired number of compute processes */
44    
45     char *outdev = NULL; /* output device name */
46    
47 gregl 3.17 int readinp = 0; /* read commands from stdin */
48    
49 gwlarson 3.51 int force = 0; /* allow overwrite of holodeck (-1 == read-only) */
50 gregl 3.20
51 gregl 3.1 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 greg 3.54 off_t maxdisk; /* maximum file space (bytes) */
56 gregl 3.8
57 gregl 3.1 int rtargc = 1; /* rtrace command */
58     char *rtargv[128] = {"rtrace", NULL};
59    
60 gregl 3.12 int orig_mode = -1; /* original file mode (-1 if unchanged) */
61    
62 gregl 3.1 long nraysdone = 0L; /* number of rays done */
63     long npacksdone = 0L; /* number of packets done */
64    
65     PACKET *freepacks; /* available packets */
66 gwlarson 3.49 int totqlen; /* maximum queue length (number of packets) */
67 gregl 3.1
68 gregl 3.12 char *sigerr[NSIG]; /* signal error messages */
69    
70 gwlarson 3.40 extern int nowarn; /* turn warnings off? */
71    
72 schorsch 3.64 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 schorsch 3.65 static gethfunc headline;
80 schorsch 3.64 static void loadholo(void);
81     static void rootname(char *rn, char *fn);
82     static void badvalue(int vc);
83 gregl 3.1
84    
85 schorsch 3.64 int
86     main(
87     int argc,
88     char *argv[]
89     )
90 gregl 3.1 {
91     int i;
92 gregl 3.33
93 gregl 3.18 initurand(16384); /* initialize urand */
94 gregl 3.1 progname = argv[0]; /* get arguments */
95     for (i = 1; i < argc && argv[i][0] == '-'; i++)
96     switch (argv[i][1]) {
97     case 'w': /* turn off warnings */
98     nowarn++;
99     break;
100     case 'f': /* force overwrite */
101 gwlarson 3.51 force = 1;
102 gregl 3.1 break;
103 gwlarson 3.51 case 'r': /* read-only mode */
104     force = -1;
105     break;
106 gregl 3.17 case 'i': /* read input from stdin */
107     readinp++;
108     break;
109 gregl 3.1 case 'n': /* compute processes */
110     if (i >= argc-2)
111     goto userr;
112     ncprocs = atoi(argv[++i]);
113     break;
114     case 'o': /* output display */
115     if (i >= argc-2)
116     goto userr;
117     outdev = argv[++i];
118     break;
119     default:
120     goto userr;
121     }
122     /* get root file name */
123 gregl 3.32 if (i >= argc)
124     goto userr;
125 gregl 3.1 rootname(froot, hdkfile=argv[i++]);
126 gregl 3.27 /* load variables? */
127     if (i < argc)
128     if (argv[i][0] != '-' && argv[i][0] != '+')
129     loadvars(argv[i]); /* load variables from file */
130    
131     if (i >= argc || argv[i][0] == '+')
132     loadholo(); /* load existing holodeck */
133    
134     while (++i < argc) /* get command line settings */
135     if (setvariable(argv[i], matchvar) < 0) {
136     sprintf(errmsg, "unknown variable: %s", argv[i]);
137     error(USER, errmsg);
138     }
139     /* check settings */
140     checkvalues();
141 gregl 3.36 /* load rad input file */
142     getradfile();
143 gregl 3.27
144 gregl 3.28 if (hdlist[0] == NULL) { /* create new holodeck */
145 gregl 3.29 HDGRID hdg[HDMAX];
146 gregl 3.1 /* set defaults */
147 gregl 3.29 setdefaults(hdg);
148 gwlarson 3.51 /* check read-only */
149     if (force < 0)
150     error(USER, "cannot create read-only holodeck");
151 gregl 3.1 /* holodeck exists? */
152     if (!force && access(hdkfile, R_OK|W_OK) == 0)
153     error(USER,
154     "holodeck file exists -- use -f to overwrite");
155     /* create holodeck */
156 gregl 3.29 creatholo(hdg);
157 gregl 3.27 } else /* else just set defaults */
158 gregl 3.15 setdefaults(NULL);
159 gregl 3.1 /* initialize */
160     initrholo();
161 gregl 3.15 /* main loop */
162 gregl 3.1 while (rholo())
163     ;
164     /* done */
165     quit(0);
166     userr:
167     fprintf(stderr,
168 gwlarson 3.51 "Usage: %s [-n nprocs][-o disp][-w][-r|-f] output.hdk [control.hif|+|- [VAR=val ..]]\n",
169 gregl 3.1 progname);
170     quit(1);
171 schorsch 3.64 return 1; /* pro forma return */
172 gregl 3.1 }
173    
174    
175 schorsch 3.64 static void
176     onsig( /* fatal signal */
177     int signo
178     )
179 gregl 3.12 {
180     static int gotsig = 0;
181    
182 gwlarson 3.47 if (gotsig > 1) /* we're going as fast as we can! */
183     return;
184     if (gotsig++) { /* two signals and we split */
185     hdsync(NULL, 0); /* don't leave w/o saying goodbye */
186 gregl 3.12 _exit(signo);
187 gwlarson 3.47 }
188     alarm(300); /* allow 5 minutes to clean up */
189 gregl 3.12 eputs("signal - ");
190     eputs(sigerr[signo]);
191     eputs("\n");
192     quit(3);
193     }
194    
195    
196 schorsch 3.64 static void
197     sigdie( /* set fatal signal */
198     int signo,
199     char *msg
200     )
201 gregl 3.12 {
202     if (signal(signo, onsig) == SIG_IGN)
203     signal(signo, SIG_IGN);
204     sigerr[signo] = msg;
205     }
206    
207    
208 schorsch 3.64 static int
209     resfmode( /* restrict open file access mode */
210     int fd,
211     int mod
212     )
213 gregl 3.12 {
214     struct stat stbuf;
215     /* get original mode */
216     if (fstat(fd, &stbuf) < 0)
217     error(SYSTEM, "cannot stat open holodeck file");
218     mod &= stbuf.st_mode; /* always more restrictive */
219 gregl 3.35 if (mod == (stbuf.st_mode & 0777))
220 gregl 3.12 return(-1); /* already set */
221     /* else change it */
222     if (fchmod(fd, mod) < 0) {
223     error(WARNING, "cannot change holodeck file access mode");
224     return(-1);
225     }
226     return(stbuf.st_mode); /* return original mode */
227     }
228    
229    
230 schorsch 3.64 static void
231     initrholo(void) /* get our holodeck running */
232 gregl 3.1 {
233     extern int global_packet();
234     register int i;
235 gregl 3.17 /* close holodeck on exec() */
236     fcntl(hdlist[0]->fd, F_SETFD, FD_CLOEXEC);
237 gregl 3.4
238     if (outdev != NULL) /* open output device */
239     disp_open(outdev);
240 gregl 3.1 else if (ncprocs > 0) /* else use global ray feed */
241     init_global();
242 gregl 3.8 /* record disk space limit */
243     if (!vdef(DISKSPACE))
244 greg 3.58 maxdisk = ((off_t)1<<(sizeof(off_t)*8-2)) - 1024;
245 gregl 3.8 else
246 gregl 3.9 maxdisk = 1024.*1024.*vflt(DISKSPACE);
247 gregl 3.1 /* set up memory cache */
248 gregl 3.5 if (outdev == NULL)
249 gwlarson 3.50 hdcachesize = 0; /* manual flushing */
250 gregl 3.5 else if (vdef(CACHE))
251     hdcachesize = 1024.*1024.*vflt(CACHE);
252 gregl 3.1 /* open report file */
253     if (vdef(REPORT)) {
254     register char *s = sskip2(vval(REPORT), 1);
255     if (*s && freopen(s, "a", stderr) == NULL)
256     quit(2);
257     }
258 gregl 3.33 /* mark the starting time */
259     starttime = time(NULL);
260     /* compute end time */
261     if (!vdef(TIME) || vflt(TIME) <= FTINY)
262     endtime = 0;
263     else
264     endtime = starttime + vflt(TIME)*3600. + .5;
265 gregl 3.1 /* start rtrace */
266     if (ncprocs > 0) {
267 gwlarson 3.38 totqlen = i = start_rtrace();
268 gregl 3.1 if (i < 1)
269 gregl 3.20 error(USER, "cannot start rtrace process(es)");
270 gregl 3.1 if (vdef(REPORT)) { /* make first report */
271     printargs(rtargc, rtargv, stderr);
272     report(0);
273     }
274     /* allocate packets */
275     freepacks = (PACKET *)bmalloc(i*sizeof(PACKET));
276     if (freepacks == NULL)
277     goto memerr;
278     freepacks[--i].nr = 0;
279     freepacks[i].next = NULL;
280 gregl 3.25 if (!vdef(OBSTRUCTIONS) || !vbool(OBSTRUCTIONS)) {
281 gregl 3.1 freepacks[i].offset = (float *)bmalloc(
282     RPACKSIZ*sizeof(float)*(i+1) );
283     if (freepacks[i].offset == NULL)
284     goto memerr;
285     } else
286     freepacks[i].offset = NULL;
287     while (i--) {
288     freepacks[i].nr = 0;
289     freepacks[i].offset = freepacks[i+1].offset == NULL ?
290     NULL : freepacks[i+1].offset+RPACKSIZ ;
291     freepacks[i].next = &freepacks[i+1];
292     }
293     }
294 gregl 3.12 /* set up signal handling */
295     sigdie(SIGINT, "Interrupt");
296 schorsch 3.62 sigdie(SIGTERM, "Terminate");
297     #ifdef SIGHUP
298 gregl 3.12 sigdie(SIGHUP, "Hangup");
299 schorsch 3.62 #endif
300     #ifdef SIGPIPE
301 gregl 3.12 sigdie(SIGPIPE, "Broken pipe");
302 schorsch 3.62 #endif
303     #ifdef SIGALRM
304 gregl 3.12 sigdie(SIGALRM, "Alarm clock");
305 schorsch 3.62 #endif
306 gregl 3.12 #ifdef SIGXCPU
307     sigdie(SIGXCPU, "CPU limit exceeded");
308 schorsch 3.62 #endif
309     #ifdef SIGXFSZ
310 gregl 3.12 sigdie(SIGXFSZ, "File size exceeded");
311     #endif
312 gwlarson 3.50 /* protect holodeck file */
313 schorsch 3.60 orig_mode = resfmode(hdlist[0]->fd, (ncprocs>0) & (force>=0) ? 0 : 0444);
314 gregl 3.1 return;
315     memerr:
316     error(SYSTEM, "out of memory in initrholo");
317     }
318    
319    
320 schorsch 3.64 static int
321     rholo(void) /* holodeck main loop */
322 gregl 3.1 {
323 greg 3.68 static long nextfragwarn = 100L<<20;
324 gregl 3.30 static int idle = 0;
325 gregl 3.1 PACKET *pl = NULL, *plend;
326 greg 3.68 off_t fsiz;
327 gregl 3.33 int pksiz;
328 gregl 3.1 register PACKET *p;
329     time_t t;
330 gregl 3.30 /* check display */
331     if (nprocs <= 0)
332     idle = 1;
333     if (outdev != NULL) {
334 gregl 3.4 if (!disp_check(idle))
335 gregl 3.30 return(0); /* quit request */
336     if (nprocs <= 0)
337     return(1);
338     } else if (idle)
339     return(0); /* all done */
340 gwlarson 3.44 fsiz = hdfilen(hdlist[0]->fd); /* check file size */
341     if (maxdisk > 0 && fsiz >= maxdisk) {
342 gregl 3.8 error(WARNING, "file limit exceeded");
343 gregl 3.21 done_rtrace();
344     return(1); /* comes back */
345 gregl 3.8 }
346 gwlarson 3.44 #if FRAGWARN
347 greg 3.68 if (fsiz >= nextfragwarn) {
348     double pctfrag = 100.*(fsiz-hdfiluse(hdlist[0]->fd))/fsiz;
349     if (pctfrag >= (double)FRAGWARN) {
350     sprintf(errmsg, "holodeck file fragmentation is %.0f%%",
351     pctfrag);
352     error(WARNING, errmsg);
353     nextfragwarn = fsiz + (fsiz>>2);
354     } else
355     nextfragwarn = fsiz + (10L<<20);
356 gwlarson 3.44 }
357     #endif
358 gregl 3.33 t = time(NULL); /* check time */
359 gregl 3.8 if (endtime > 0 && t >= endtime) {
360     error(WARNING, "time limit exceeded");
361 gregl 3.21 done_rtrace();
362     return(1); /* comes back */
363 gregl 3.8 }
364 gregl 3.3 if (reporttime > 0 && t >= reporttime)
365 gregl 3.1 report(t);
366 gregl 3.33 /* figure out good packet size */
367 gwlarson 3.48 pksiz = RPACKSIZ;
368 gregl 3.33 #if MAXQTIME
369 gwlarson 3.48 if (!chunkycmp) {
370     pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L));
371     if (pksiz < 1) pksiz = 1;
372     else if (pksiz > RPACKSIZ) pksiz = RPACKSIZ;
373     }
374 gregl 3.33 #endif
375 gregl 3.28 idle = 0; /* get packets to process */
376 gregl 3.1 while (freepacks != NULL) {
377     p = freepacks; freepacks = p->next; p->next = NULL;
378 gregl 3.33 if (!next_packet(p, pksiz)) {
379 gregl 3.1 p->next = freepacks; freepacks = p;
380 gregl 3.21 idle = 1;
381 gregl 3.1 break;
382     }
383     if (pl == NULL) pl = p;
384     else plend->next = p;
385     plend = p;
386     }
387 gregl 3.21 /* process packets */
388 gregl 3.1 done_packets(do_packets(pl));
389     return(1); /* and continue */
390     }
391    
392    
393 schorsch 3.64 static void
394     setdefaults( /* set default values */
395     register HDGRID *gp
396     )
397 gregl 3.1 {
398     extern char *atos();
399     register int i;
400 gregl 3.29 int n;
401 gregl 3.37 double len[3], d;
402 gregl 3.1
403     if (!vdef(SECTION)) {
404     sprintf(errmsg, "%s must be defined", vnam(SECTION));
405     error(USER, errmsg);
406     }
407     if (!vdef(OCTREE)) {
408     if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL)
409     error(SYSTEM, "out of memory");
410     sprintf(vval(OCTREE), "%s.oct", froot);
411     vdef(OCTREE)++;
412 gregl 3.14 }
413     if (!vdef(VDIST)) {
414     vval(VDIST) = "F";
415     vdef(VDIST)++;
416 gregl 3.1 }
417     /* append rendering options */
418     if (vdef(RENDER))
419     rtargc += wordstring(rtargv+rtargc, vval(RENDER));
420 gregl 3.15
421     if (gp == NULL) /* already initialized? */
422     return;
423     /* set grid parameters */
424 gregl 3.29 for (n = 0; n < vdef(SECTION); n++, gp++) {
425     gp->grid[0] = gp->grid[1] = gp->grid[2] = 0;
426     if (sscanf(nvalue(SECTION, n),
427 gregl 3.16 "%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %hd %hd %hd",
428 gregl 3.29 &gp->orig[0], &gp->orig[1], &gp->orig[2],
429     &gp->xv[0][0], &gp->xv[0][1], &gp->xv[0][2],
430     &gp->xv[1][0], &gp->xv[1][1], &gp->xv[1][2],
431     &gp->xv[2][0], &gp->xv[2][1], &gp->xv[2][2],
432     &gp->grid[0], &gp->grid[1], &gp->grid[2]) < 12)
433     badvalue(SECTION);
434     for (i = 0; i < 3; i++)
435 gregl 3.37 len[i] = VLEN(gp->xv[i]);
436     if (!vdef(GRID)) {
437 gwlarson 3.43 d = 2/2e5*( len[0]*len[0]*(len[1]*len[1] +
438 gregl 3.37 len[2]*len[2] + 4*len[1]*len[2])
439     + len[1]*len[1]*len[2]*(len[2] + 4*len[0])
440     + 4*len[0]*len[1]*len[2]*len[2] );
441     d = sqrt(sqrt(d));
442     } else if ((d = vflt(GRID)) <= FTINY)
443 gregl 3.29 badvalue(GRID);
444     for (i = 0; i < 3; i++)
445     if (gp->grid[i] <= 0)
446     gp->grid[i] = len[i]/d + (1.-FTINY);
447 gregl 3.15 }
448 gregl 3.1 }
449    
450    
451 schorsch 3.64 static void
452     creatholo( /* create a holodeck output file */
453     HDGRID *gp
454     )
455 gregl 3.1 {
456 gregl 3.12 extern char VersionID[];
457 greg 3.57 int32 lastloc, nextloc;
458 gregl 3.29 int n;
459 gregl 3.10 int fd;
460 gregl 3.1 FILE *fp;
461     /* open & truncate file */
462     if ((fp = fopen(hdkfile, "w+")) == NULL) {
463     sprintf(errmsg, "cannot open \"%s\" for writing", hdkfile);
464     error(SYSTEM, errmsg);
465     }
466     /* write information header */
467     newheader("RADIANCE", fp);
468 gregl 3.12 fprintf(fp, "SOFTWARE= %s\n", VersionID);
469 gregl 3.1 printvars(fp);
470     fputformat(HOLOFMT, fp);
471     fputc('\n', fp);
472 gregl 3.29 putw(HOLOMAGIC, fp); /* put magic number */
473 gregl 3.10 fd = dup(fileno(fp));
474     fclose(fp); /* flush and close stdio stream */
475 greg 3.61 lastloc = lseek(fd, (off_t)0, SEEK_END);
476 gregl 3.29 for (n = vdef(SECTION); n--; gp++) { /* initialize each section */
477     nextloc = 0L;
478     write(fd, (char *)&nextloc, sizeof(nextloc));
479     hdinit(fd, gp); /* writes beam index */
480     if (!n)
481     break;
482     nextloc = hdfilen(fd); /* write section pointer */
483 greg 3.61 if (lseek(fd, (off_t)lastloc, SEEK_SET) < 0)
484 gregl 3.29 error(SYSTEM,
485     "cannot seek on holodeck file in creatholo");
486     write(fd, (char *)&nextloc, sizeof(nextloc));
487 greg 3.61 lseek(fd, (off_t)(lastloc=nextloc), SEEK_SET);
488 gregl 3.29 }
489 gregl 3.1 }
490    
491    
492 schorsch 3.64 static int
493     headline( /* process information header line */
494 schorsch 3.65 char *s,
495     void *p
496 schorsch 3.64 )
497 gregl 3.1 {
498     extern char FMTSTR[];
499     register char *cp;
500     char fmt[32];
501    
502 gregl 3.2 if (formatval(fmt, s)) {
503 gregl 3.1 if (strcmp(fmt, HOLOFMT)) {
504     sprintf(errmsg, "%s file \"%s\" has %s%s",
505     HOLOFMT, hdkfile, FMTSTR, fmt);
506     error(USER, errmsg);
507     }
508 gwlarson 3.42 return(0);
509 gregl 3.1 }
510     for (cp = s; *cp; cp++) /* take off any comments */
511     if (*cp == '#') {
512     *cp = '\0';
513     break;
514     }
515     setvariable(s, matchvar); /* don't flag errors */
516 gwlarson 3.42 return(0);
517 gregl 3.1 }
518    
519    
520 schorsch 3.64 static void
521     loadholo(void) /* start loading a holodeck from fname */
522 gregl 3.1 {
523     FILE *fp;
524 gregl 3.10 int fd;
525 gregl 3.29 int n;
526 greg 3.57 int32 nextloc;
527 gwlarson 3.51
528 schorsch 3.60 if ((ncprocs > 0) & (force >= 0))
529 gwlarson 3.51 fp = fopen(hdkfile, "r+");
530     else
531     fp = NULL;
532     if (fp == NULL) {
533     if ((fp = fopen(hdkfile, "r")) == NULL) {
534     sprintf(errmsg, "cannot open \"%s\"", hdkfile);
535     error(SYSTEM, errmsg);
536     }
537     if (ncprocs > 0) {
538     sprintf(errmsg,
539     "\"%s\" opened read-only; new rays will be discarded",
540     hdkfile);
541     error(WARNING, errmsg);
542     force = -1;
543     }
544 gregl 3.1 }
545     /* load variables from header */
546     getheader(fp, headline, NULL);
547     /* check magic number */
548     if (getw(fp) != HOLOMAGIC) {
549     sprintf(errmsg, "bad magic number in holodeck file \"%s\"",
550     hdkfile);
551     error(USER, errmsg);
552     }
553 gregl 3.29 nextloc = ftell(fp); /* get stdio position */
554 gregl 3.10 fd = dup(fileno(fp));
555     fclose(fp); /* done with stdio */
556 gregl 3.29 for (n = 0; nextloc > 0L; n++) { /* initialize each section */
557 greg 3.61 lseek(fd, (off_t)nextloc, SEEK_SET);
558 gregl 3.29 read(fd, (char *)&nextloc, sizeof(nextloc));
559     hdinit(fd, NULL);
560     }
561     if (n != vdef(SECTION)) {
562     sprintf(errmsg, "number of sections does not match %s setting",
563     vnam(SECTION));
564     error(WARNING, errmsg);
565     }
566 gregl 3.1 }
567    
568    
569 schorsch 3.64 extern void
570     done_packets( /* handle finished packets */
571     PACKET *pl
572     )
573 gregl 3.1 {
574 gregl 3.13 static int n2flush = 0;
575 gregl 3.1 register PACKET *p;
576    
577     while (pl != NULL) {
578     p = pl; pl = p->next; p->next = NULL;
579     if (p->nr > 0) { /* add to holodeck */
580 schorsch 3.59 memcpy( (void *)hdnewrays(hdlist[p->hd],p->bi,p->nr),
581     (void *)p->ra,
582 gregl 3.1 p->nr*sizeof(RAYVAL));
583     if (outdev != NULL) /* display it */
584 gregl 3.7 disp_packet((PACKHEAD *)p);
585 gwlarson 3.49 if (hdcachesize <= 0)
586 gregl 3.33 n2flush++;
587 gregl 3.6 nraysdone += p->nr;
588     npacksdone++;
589 gregl 3.33 p->nr = 0;
590 gregl 3.1 }
591 gregl 3.33 p->next = freepacks; /* push onto free list */
592 gregl 3.1 freepacks = p;
593 gregl 3.5 }
594 gwlarson 3.50 if (n2flush >= RTFLUSH) {
595 gwlarson 3.46 if (outdev != NULL)
596     hdsync(NULL, 1);
597 gwlarson 3.41 else
598 gwlarson 3.46 hdflush(NULL);
599 gregl 3.13 n2flush = 0;
600 gregl 3.1 }
601     }
602    
603    
604 schorsch 3.64 static void
605     rootname( /* remove tail from end of fn */
606     register char *rn,
607     register char *fn
608     )
609 gregl 3.1 {
610     char *tp, *dp;
611    
612 schorsch 3.60 for (tp = NULL, dp = rn; (*rn = *fn++); rn++) {
613 gregl 3.22 if (*rn == '/')
614 gregl 3.1 dp = rn;
615     else if (*rn == '.')
616     tp = rn;
617 schorsch 3.60 }
618 gregl 3.1 if (tp != NULL && tp > dp)
619     *tp = '\0';
620     }
621    
622    
623 schorsch 3.64 static void
624     badvalue( /* report bad variable value and exit */
625     int vc
626     )
627 gregl 3.1 {
628     sprintf(errmsg, "bad value for variable '%s'", vnam(vc));
629     error(USER, errmsg);
630     }
631    
632    
633 greg 3.52 void
634 gregl 3.1 eputs(s) /* put error message to stderr */
635     register char *s;
636     {
637     static int midline = 0;
638    
639     if (!*s)
640     return;
641     if (!midline++) { /* prepend line with program name */
642     fputs(progname, stderr);
643     fputs(": ", stderr);
644     }
645     fputs(s, stderr);
646     if (s[strlen(s)-1] == '\n') {
647     fflush(stderr);
648     midline = 0;
649     }
650     }
651    
652    
653 greg 3.52 void
654 gregl 3.1 quit(ec) /* exit program gracefully */
655     int ec;
656     {
657     int status = 0;
658    
659 gregl 3.24 if (hdlist[0] != NULL) { /* close holodeck */
660 gregl 3.21 if (nprocs > 0)
661 gregl 3.24 status = done_rtrace(); /* calls hdsync() */
662 schorsch 3.60 if ((ncprocs > 0) & (force >= 0) && vdef(REPORT)) {
663 greg 3.54 off_t fsiz, fuse;
664 gregl 3.19 fsiz = hdfilen(hdlist[0]->fd);
665 greg 3.67 fuse = hdfiluse(hdlist[0]->fd);
666 gregl 3.19 fprintf(stderr,
667 gregl 3.3 "%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n",
668 gregl 3.19 hdkfile, fsiz/(1024.*1024.),
669     100.*(fsiz-fuse)/fsiz);
670     }
671 gregl 3.1 }
672 gregl 3.12 if (orig_mode >= 0) /* reset holodeck access mode */
673     fchmod(hdlist[0]->fd, orig_mode);
674 gregl 3.11 if (outdev != NULL) /* close display */
675     disp_close();
676 gregl 3.1 exit(ec ? ec : status); /* exit */
677     }