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root/radiance/ray/src/util/ranimate.c
Revision: 2.19
Committed: Wed Jul 10 15:14:59 1996 UTC (28 years, 3 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.18: +4 -1 lines
Log Message:
made default BASENAME respond to number of END frame

File Contents

# User Rev Content
1 greg 2.11 /* Copyright (c) 1996 Regents of the University of California */
2 greg 2.1
3     #ifndef lint
4     static char SCCSid[] = "$SunId$ LBL";
5     #endif
6    
7     /*
8     * Radiance animation control program
9     */
10    
11     #include "standard.h"
12 greg 2.2 #include <ctype.h>
13 greg 2.1 #include <sys/types.h>
14     #include <sys/stat.h>
15     #include "view.h"
16     #include "vars.h"
17 greg 2.2 #include "netproc.h"
18 greg 2.10 /* default remote shell */
19     #ifdef _AUX_SOURCE
20     #define REMSH "remsh"
21     #else
22     #define REMSH "rsh"
23     #endif
24 greg 2.1 /* input variables */
25     #define HOST 0 /* rendering host machine */
26     #define RENDER 1 /* rendering options */
27     #define PFILT 2 /* pfilt options */
28     #define PINTERP 3 /* pinterp options */
29     #define OCTREE 4 /* octree file name */
30     #define DIRECTORY 5 /* working (sub)directory */
31     #define BASENAME 6 /* output image base name */
32     #define VIEWFILE 7 /* animation frame views */
33     #define START 8 /* starting frame number */
34     #define END 9 /* ending frame number */
35     #define RIF 10 /* rad input file */
36     #define NEXTANIM 11 /* next animation file */
37     #define ANIMATE 12 /* animation command */
38     #define TRANSFER 13 /* frame transfer command */
39     #define ARCHIVE 14 /* archiving command */
40     #define INTERP 15 /* # frames to interpolate */
41     #define OVERSAMP 16 /* # times to oversample image */
42     #define MBLUR 17 /* samples for motion blur */
43     #define RTRACE 18 /* use rtrace with pinterp? */
44     #define DISKSPACE 19 /* how much disk space to use */
45     #define RESOLUTION 20 /* desired final resolution */
46     #define EXPOSURE 21 /* how to compute exposure */
47 greg 2.10 #define RSH 22 /* remote shell script or program */
48 greg 2.1
49 greg 2.10 int NVARS = 23; /* total number of variables */
50 greg 2.1
51     VARIABLE vv[] = { /* variable-value pairs */
52     {"host", 4, 0, NULL, NULL},
53     {"render", 3, 0, NULL, catvalues},
54     {"pfilt", 2, 0, NULL, catvalues},
55     {"pinterp", 2, 0, NULL, catvalues},
56     {"OCTREE", 3, 0, NULL, onevalue},
57     {"DIRECTORY", 3, 0, NULL, onevalue},
58     {"BASENAME", 3, 0, NULL, onevalue},
59     {"VIEWFILE", 2, 0, NULL, onevalue},
60     {"START", 2, 0, NULL, intvalue},
61     {"END", 2, 0, NULL, intvalue},
62     {"RIF", 3, 0, NULL, onevalue},
63     {"NEXTANIM", 3, 0, NULL, onevalue},
64     {"ANIMATE", 2, 0, NULL, onevalue},
65     {"TRANSFER", 2, 0, NULL, onevalue},
66     {"ARCHIVE", 2, 0, NULL, onevalue},
67 greg 2.5 {"INTERPOLATE", 3, 0, NULL, intvalue},
68     {"OVERSAMPLE", 2, 0, NULL, fltvalue},
69 greg 2.1 {"MBLUR", 2, 0, NULL, onevalue},
70     {"RTRACE", 2, 0, NULL, boolvalue},
71     {"DISKSPACE", 3, 0, NULL, fltvalue},
72     {"RESOLUTION", 3, 0, NULL, onevalue},
73     {"EXPOSURE", 3, 0, NULL, onevalue},
74 greg 2.10 {"RSH", 3, 0, NULL, onevalue},
75 greg 2.1 };
76    
77     #define SFNAME "STATUS" /* status file name */
78    
79     struct {
80     char host[64]; /* control host name */
81     int pid; /* control process id */
82     char cfname[128]; /* control file name */
83     int rnext; /* next frame to render */
84     int fnext; /* next frame to filter */
85     int tnext; /* next frame to transfer */
86     } astat; /* animation status */
87    
88     char *progname; /* our program name */
89     char *cfname; /* our control file name */
90    
91     int nowarn = 0; /* turn warnings off? */
92     int silent = 0; /* silent mode? */
93     int noaction = 0; /* take no action? */
94    
95 greg 2.10 char *remsh; /* remote shell program/script */
96 greg 2.1 char rendopt[2048] = ""; /* rendering options */
97     char rresopt[32]; /* rendering resolution options */
98     char fresopt[32]; /* filter resolution options */
99     int pfiltalways; /* always use pfilt? */
100    
101 greg 2.7 char arcargs[10240]; /* files to archive */
102     char *arcfirst, *arcnext; /* pointers to first and next argument */
103    
104 greg 2.2 struct pslot {
105     int pid; /* process ID (0 if empty) */
106     int fout; /* output frame number */
107     int (*rcvf)(); /* recover function */
108     } *pslot; /* process slots */
109     int npslots; /* number of process slots */
110    
111 greg 2.4 #define phostname(ps) ((ps)->hostname[0] ? (ps)->hostname : astat.host)
112    
113 greg 2.2 struct pslot *findpslot();
114    
115 greg 2.18 PSERVER *lastpserver; /* last process server with error */
116    
117 greg 2.1 VIEW *getview();
118     char *getexp();
119    
120 greg 2.12 extern time_t fdate(), time();
121 greg 2.1
122 greg 2.12
123 greg 2.1 main(argc, argv)
124     int argc;
125     char *argv[];
126     {
127     int explicate = 0;
128     int i;
129    
130     progname = argv[0]; /* get arguments */
131     for (i = 1; i < argc && argv[i][0] == '-'; i++)
132     switch (argv[i][1]) {
133     case 'e': /* print variables */
134     explicate++;
135     break;
136     case 'w': /* turn off warnings */
137     nowarn++;
138     break;
139     case 's': /* silent mode */
140     silent++;
141     break;
142     case 'n': /* take no action */
143     noaction++;
144     break;
145     default:
146     goto userr;
147     }
148     if (i != argc-1)
149     goto userr;
150     cfname = argv[i];
151     /* load variables */
152     loadvars(cfname);
153     /* did we get DIRECTORY? */
154     checkdir();
155     /* check status */
156     if (getastat() < 0) {
157     fprintf(stderr, "%s: exiting\n", progname);
158     quit(1);
159     }
160     /* pfilt always if options given */
161     pfiltalways = vdef(PFILT);
162     /* load RIF if any */
163     if (vdef(RIF))
164     getradfile(vval(RIF));
165     /* set defaults */
166     setdefaults();
167     /* print variables */
168     if (explicate)
169     printvars(stdout);
170 greg 2.2 /* set up process servers */
171     sethosts();
172 greg 2.1 /* run animation */
173     animate();
174     /* all done */
175     if (vdef(NEXTANIM)) {
176     argv[i] = vval(NEXTANIM); /* just change input file */
177     if (!silent)
178     printargs(argc, argv, stdout);
179 greg 2.11 if ((argv[0] = getpath(progname,getenv("PATH"),X_OK)) == NULL)
180     fprintf(stderr, "%s: command not found\n", progname);
181     else
182     execv(progname, argv);
183     quit(1);
184 greg 2.1 }
185     quit(0);
186     userr:
187     fprintf(stderr, "Usage: %s [-s][-n][-w][-e] anim_file\n", progname);
188     quit(1);
189     }
190    
191    
192     getastat() /* check/set animation status */
193     {
194 greg 2.12 char sfname[256];
195 greg 2.1 FILE *fp;
196    
197 greg 2.12 sprintf(sfname, "%s/%s", vval(DIRECTORY), SFNAME);
198     if ((fp = fopen(sfname, "r")) == NULL) {
199 greg 2.1 if (errno != ENOENT) {
200 greg 2.12 perror(sfname);
201 greg 2.1 return(-1);
202     }
203     astat.rnext = astat.fnext = astat.tnext = 0;
204     goto setours;
205     }
206     if (fscanf(fp, "Control host: %s\n", astat.host) != 1)
207     goto fmterr;
208     if (fscanf(fp, "Control PID: %d\n", &astat.pid) != 1)
209     goto fmterr;
210     if (fscanf(fp, "Control file: %s\n", astat.cfname) != 1)
211     goto fmterr;
212     if (fscanf(fp, "Next render: %d\n", &astat.rnext) != 1)
213     goto fmterr;
214     if (fscanf(fp, "Next filter: %d\n", &astat.fnext) != 1)
215     goto fmterr;
216     if (fscanf(fp, "Next transfer: %d\n", &astat.tnext) != 1)
217     goto fmterr;
218     fclose(fp);
219     if (astat.pid != 0) { /* thinks it's still running */
220 greg 2.9 if (strcmp(myhostname(), astat.host)) {
221 greg 2.1 fprintf(stderr,
222     "%s: process %d may still be running on host %s\n",
223     progname, astat.pid, astat.host);
224     return(-1);
225     }
226     if (kill(astat.pid, 0) != -1 || errno != ESRCH) {
227     fprintf(stderr, "%s: process %d is still running\n",
228     progname, astat.pid);
229     return(-1);
230     }
231     /* assume it is dead */
232     }
233     if (strcmp(cfname, astat.cfname) && astat.tnext != 0) { /* other's */
234     fprintf(stderr, "%s: unfinished job \"%s\"\n",
235     progname, astat.cfname);
236     return(-1);
237     }
238 greg 2.12 /* check control file mods. */
239     if (!nowarn && fdate(cfname) > fdate(sfname))
240     fprintf(stderr,
241     "%s: warning - control file modified since last run\n",
242     progname);
243 greg 2.1 setours: /* set our values */
244 greg 2.9 strcpy(astat.host, myhostname());
245 greg 2.1 astat.pid = getpid();
246     strcpy(astat.cfname, cfname);
247     return(0);
248     fmterr:
249     fprintf(stderr, "%s: format error in status file \"%s\"\n",
250 greg 2.12 progname, sfname);
251 greg 2.1 fclose(fp);
252     return(-1);
253     }
254    
255    
256     putastat() /* put out current status */
257     {
258     char buf[256];
259     FILE *fp;
260    
261 greg 2.2 if (noaction)
262     return;
263 greg 2.1 sprintf(buf, "%s/%s", vval(DIRECTORY), SFNAME);
264     if ((fp = fopen(buf, "w")) == NULL) {
265     perror(buf);
266     quit(1);
267     }
268     fprintf(fp, "Control host: %s\n", astat.host);
269     fprintf(fp, "Control PID: %d\n", astat.pid);
270     fprintf(fp, "Control file: %s\n", astat.cfname);
271     fprintf(fp, "Next render: %d\n", astat.rnext);
272     fprintf(fp, "Next filter: %d\n", astat.fnext);
273     fprintf(fp, "Next transfer: %d\n", astat.tnext);
274     fclose(fp);
275     }
276    
277    
278     checkdir() /* make sure we have our directory */
279     {
280     struct stat stb;
281    
282     if (!vdef(DIRECTORY)) {
283     fprintf(stderr, "%s: %s undefined\n",
284     progname, vnam(DIRECTORY));
285     quit(1);
286     }
287     if (stat(vval(DIRECTORY), &stb) == -1) {
288     if (errno == ENOENT && mkdir(vval(DIRECTORY), 0777) == 0)
289     return;
290     perror(vval(DIRECTORY));
291     quit(1);
292     }
293     if (!(stb.st_mode & S_IFDIR)) {
294     fprintf(stderr, "%s: not a directory\n", vval(DIRECTORY));
295     quit(1);
296     }
297     }
298    
299    
300     setdefaults() /* set default values */
301     {
302 greg 2.10 extern char *atos();
303 greg 2.19 int decades;
304 greg 2.1 char buf[256];
305    
306 greg 2.2 if (vdef(ANIMATE)) {
307     vval(OCTREE) = NULL;
308     vdef(OCTREE) = 0;
309     } else if (!vdef(OCTREE)) {
310 greg 2.1 fprintf(stderr, "%s: either %s or %s must be defined\n",
311     progname, vnam(OCTREE), vnam(ANIMATE));
312     quit(1);
313     }
314     if (!vdef(VIEWFILE)) {
315     fprintf(stderr, "%s: %s undefined\n", progname, vnam(VIEWFILE));
316     quit(1);
317     }
318 greg 2.2 if (!vdef(HOST)) {
319     vval(HOST) = LHOSTNAME;
320     vdef(HOST)++;
321     }
322 greg 2.1 if (!vdef(START)) {
323     vval(START) = "1";
324     vdef(START)++;
325     }
326     if (!vdef(END)) {
327 greg 2.5 sprintf(buf, "%d", countviews()+vint(START)-1);
328 greg 2.1 vval(END) = savqstr(buf);
329     vdef(END)++;
330     }
331 greg 2.5 if (vint(END) < vint(START)) {
332     fprintf(stderr, "%s: ending frame less than starting frame\n",
333     progname);
334     quit(1);
335     }
336 greg 2.1 if (!vdef(BASENAME)) {
337 greg 2.19 decades = (int)log10((double)vint(END)) + 1;
338     if (decades < 3) decades = 3;
339     sprintf(buf, "%s/frame%%0%dd", vval(DIRECTORY), decades);
340 greg 2.1 vval(BASENAME) = savqstr(buf);
341     vdef(BASENAME)++;
342     }
343     if (!vdef(RESOLUTION)) {
344     vval(RESOLUTION) = "640";
345     vdef(RESOLUTION)++;
346     }
347     if (!vdef(OVERSAMP)) {
348     vval(OVERSAMP) = "2";
349     vdef(OVERSAMP)++;
350     }
351     if (!vdef(INTERP)) {
352     vval(INTERP) = "0";
353     vdef(INTERP)++;
354     }
355     if (!vdef(MBLUR)) {
356     vval(MBLUR) = "0";
357     vdef(MBLUR)++;
358     }
359     if (!vdef(RTRACE)) {
360     vval(RTRACE) = "F";
361     vdef(RTRACE)++;
362     }
363     if (!vdef(DISKSPACE)) {
364     if (!nowarn)
365     fprintf(stderr,
366     "%s: warning - no %s setting, assuming 100 Mbytes available\n",
367     progname, vnam(DISKSPACE));
368     vval(DISKSPACE) = "100";
369     vdef(DISKSPACE)++;
370     }
371 greg 2.10 if (!vdef(RSH)) {
372     vval(RSH) = REMSH;
373     vdef(RSH)++;
374     }
375     /* locate remote shell program */
376     atos(buf, sizeof(buf), vval(RSH));
377     if ((remsh = getpath(buf, getenv("PATH"), X_OK)) != NULL)
378     remsh = savqstr(remsh);
379     else
380     remsh = vval(RSH); /* will generate error if used */
381    
382 greg 2.1 /* append rendering options */
383     if (vdef(RENDER))
384     sprintf(rendopt+strlen(rendopt), " %s", vval(RENDER));
385     }
386    
387    
388 greg 2.2 sethosts() /* set up process servers */
389     {
390     extern char *iskip();
391     char buf[256], *dir, *uname;
392     int np;
393     register char *cp;
394     int i;
395    
396     npslots = 0;
397     if (noaction)
398     return;
399     for (i = 0; i < vdef(HOST); i++) { /* add each host */
400     dir = uname = NULL;
401     np = 1;
402     strcpy(cp=buf, nvalue(HOST, i)); /* copy to buffer */
403     cp = sskip(cp); /* skip host name */
404     while (isspace(*cp))
405     *cp++ = '\0';
406     if (*cp) { /* has # processes? */
407     np = atoi(cp);
408     if ((cp = iskip(cp)) == NULL || (*cp && !isspace(*cp)))
409     badvalue(HOST);
410     while (isspace(*cp))
411     cp++;
412     if (*cp) { /* has directory? */
413     dir = cp;
414     cp = sskip(cp); /* skip dir. */
415     while (isspace(*cp))
416     *cp++ = '\0';
417     if (*cp) { /* has user? */
418     uname = cp;
419     if (*sskip(cp))
420     badvalue(HOST);
421     }
422     }
423     }
424     if (addpserver(buf, dir, uname, np) == NULL) {
425     if (!nowarn)
426     fprintf(stderr,
427     "%s: cannot execute on host \"%s\"\n",
428     progname, buf);
429     } else
430     npslots += np;
431     }
432     if (npslots == 0) {
433     fprintf(stderr, "%s: no working process servers\n", progname);
434     quit(1);
435     }
436     pslot = (struct pslot *)calloc(npslots, sizeof(struct pslot));
437     if (pslot == NULL) {
438     perror("malloc");
439     quit(1);
440     }
441     }
442    
443    
444 greg 2.7 getradfile(rfargs) /* run rad and get needed variables */
445     char *rfargs;
446 greg 2.1 {
447     static short mvar[] = {OCTREE,PFILT,RESOLUTION,EXPOSURE,-1};
448     char combuf[256];
449     register int i;
450     register char *cp;
451     /* create rad command */
452     sprintf(rendopt, " @%s/render.opt", vval(DIRECTORY));
453     sprintf(combuf,
454     "rad -v 0 -s -e -w %s OPTFILE=%s | egrep '^[ \t]*(NOMATCH",
455 greg 2.7 rfargs, rendopt+2);
456 greg 2.1 cp = combuf;
457     while (*cp) cp++; /* match unset variables */
458     for (i = 0; mvar[i] >= 0; i++)
459     if (!vdef(mvar[i])) {
460     *cp++ = '|';
461     strcpy(cp, vnam(mvar[i]));
462     while (*cp) cp++;
463     }
464     sprintf(cp, ")[ \t]*=' > %s/radset.var", vval(DIRECTORY));
465     cp += 11; /* point to file name */
466     if (system(combuf)) {
467 greg 2.7 fprintf(stderr, "%s: error executing rad command:\n\t%s\n",
468     progname, combuf);
469 greg 2.1 quit(1);
470     }
471     loadvars(cp); /* load variables and remove file */
472     unlink(cp);
473     }
474    
475    
476     animate() /* run animation */
477     {
478     int xres, yres;
479     float pa, mult;
480     int frames_batch;
481     register int i;
482     double d1, d2;
483     /* compute rpict resolution */
484     i = sscanf(vval(RESOLUTION), "%d %d %f", &xres, &yres, &pa);
485     mult = vflt(OVERSAMP);
486     if (i == 3) {
487 greg 2.16 sprintf(rresopt, "-x %d -y %d -pa %.3f", (int)(mult*xres),
488 greg 2.1 (int)(mult*yres), pa);
489 greg 2.16 sprintf(fresopt, "-x %d -y %d -pa %.3f", xres, yres, pa);
490 greg 2.1 } else if (i) {
491     if (i == 1) yres = xres;
492     sprintf(rresopt, "-x %d -y %d", (int)(mult*xres),
493     (int)(mult*yres));
494     sprintf(fresopt, "-x %d -y %d -pa 1", xres, yres);
495     } else
496     badvalue(RESOLUTION);
497     /* consistency checks */
498     if (vdef(ANIMATE)) {
499     if (vint(INTERP)) {
500     if (!nowarn)
501     fprintf(stderr,
502     "%s: resetting %s=0 for animation\n",
503     progname, vnam(INTERP));
504     vval(INTERP) = "0";
505     }
506     if (atoi(vval(MBLUR))) { /* can't handle this yet */
507     if (!nowarn)
508     fprintf(stderr,
509     "%s: resetting %s=0 for animation\n",
510     progname, vnam(MBLUR));
511     vval(MBLUR) = "0";
512     }
513     }
514     /* figure # frames per batch */
515     d1 = mult*xres*mult*yres*4; /* space for orig. picture */
516     if ((i=vint(INTERP)) || atoi(vval(MBLUR)))
517 greg 2.13 d1 += mult*xres*mult*yres*sizeof(float); /* Z-buffer */
518 greg 2.1 d2 = xres*yres*4; /* space for final picture */
519     frames_batch = (i+1)*(vflt(DISKSPACE)*1048576.-d1)/(d1+i*d2);
520     if (frames_batch < i+2) {
521     fprintf(stderr, "%s: insufficient disk space allocated\n",
522     progname);
523     quit(1);
524     }
525 greg 2.7 /* initialize archive argument list */
526     i = 16;
527     if (vdef(ARCHIVE) && strlen(vval(ARCHIVE)) > i)
528     i = strlen(vval(ARCHIVE));
529     arcnext = arcfirst = arcargs + i;
530 greg 2.1 /* initialize status file */
531     if (astat.rnext == 0)
532     astat.rnext = astat.fnext = astat.tnext = vint(START);
533     putastat();
534     /* render in batches */
535 greg 2.2 while (astat.tnext <= vint(END)) {
536 greg 2.1 renderframes(frames_batch);
537     filterframes();
538     transferframes();
539     }
540     /* mark status as finished */
541     astat.pid = 0;
542     putastat();
543     /* close open files */
544     getview(0);
545     getexp(0);
546     }
547    
548    
549     renderframes(nframes) /* render next nframes frames */
550     int nframes;
551     {
552     static char vendbuf[16];
553     VIEW *vp;
554     FILE *fp = NULL;
555     char vfname[128];
556     int lastframe;
557     register int i;
558    
559     if (astat.tnext < astat.rnext) /* other work to do first */
560     return;
561     /* create batch view file */
562     if (!vdef(ANIMATE)) {
563     sprintf(vfname, "%s/anim.vf", vval(DIRECTORY));
564     if ((fp = fopen(vfname, "w")) == NULL) {
565     perror(vfname);
566     quit(1);
567     }
568     }
569     /* bound batch properly */
570     lastframe = astat.rnext + nframes - 1;
571     if ((lastframe-1) % (vint(INTERP)+1)) /* need even interval */
572     lastframe += vint(INTERP)+1 - ((lastframe-1)%(vint(INTERP)+1));
573     if (lastframe > vint(END)) /* check for end */
574     lastframe = vint(END);
575     /* render each view */
576     for (i = astat.rnext; i <= lastframe; i++) {
577     if ((vp = getview(i)) == NULL) {
578     if (!nowarn)
579     fprintf(stderr,
580     "%s: ran out of views before last frame\n",
581     progname);
582     sprintf(vval(END)=vendbuf, "%d", i-1);
583     lastframe = i - 1;
584     break;
585     }
586     if (vdef(ANIMATE)) /* animate frame */
587     animrend(i, vp);
588     else { /* else record it */
589     fputs(VIEWSTR, fp);
590     fprintview(vp, fp);
591     putc('\n', fp);
592     }
593     }
594     if (vdef(ANIMATE)) /* wait for renderings to finish */
595 greg 2.2 bwait(0);
596 greg 2.1 else { /* else if walk-through */
597     fclose(fp); /* close view file */
598     walkwait(astat.rnext, lastframe, vfname); /* walk it */
599     unlink(vfname); /* remove view file */
600     }
601     astat.rnext = i; /* update status */
602     putastat();
603     }
604    
605    
606     filterframes() /* catch up with filtering */
607     {
608     VIEW *vp;
609     register int i;
610    
611     if (astat.tnext < astat.fnext) /* other work to do first */
612     return;
613     /* filter each view */
614     for (i = astat.fnext; i < astat.rnext; i++) {
615     if ((vp = getview(i)) == NULL) { /* get view i */
616     fprintf(stderr,
617     "%s: unexpected error reading view for frame %d\n",
618     progname, i);
619     quit(1);
620     }
621 greg 2.2 dofilt(i, vp, getexp(i), 0); /* filter frame */
622 greg 2.1 }
623 greg 2.2 bwait(0); /* wait for filter processes */
624 greg 2.7 archive(); /* archive originals */
625 greg 2.1 astat.fnext = i; /* update status */
626     putastat();
627     }
628    
629    
630     transferframes() /* catch up with picture transfers */
631     {
632     char combuf[10240];
633     register char *cp;
634     register int i;
635    
636     if (astat.tnext >= astat.fnext) /* nothing to do, yet */
637     return;
638     if (!vdef(TRANSFER)) { /* no transfer function -- leave 'em */
639     astat.tnext = astat.fnext;
640     putastat(); /* update status */
641     return;
642     }
643     strcpy(combuf, vval(TRANSFER)); /* start transfer command */
644     cp = combuf + strlen(combuf);
645     /* make argument list */
646     for (i = astat.tnext; i < astat.fnext; i++) {
647     *cp++ = ' ';
648     sprintf(cp, vval(BASENAME), i);
649     while (*cp) cp++;
650     strcpy(cp, ".pic");
651     cp += 4;
652     }
653     if (runcom(combuf)) { /* transfer frames */
654     fprintf(stderr, "%s: error running transfer command\n",
655     progname);
656     quit(1);
657     }
658     astat.tnext = i; /* update status */
659     putastat();
660     }
661    
662    
663     animrend(frame, vp) /* start animation frame */
664     int frame;
665     VIEW *vp;
666     {
667 greg 2.2 extern int recover();
668 greg 2.1 char combuf[2048];
669     char fname[128];
670    
671     sprintf(fname, vval(BASENAME), frame);
672     strcat(fname, ".unf");
673     if (access(fname, F_OK) == 0)
674     return;
675 greg 2.2 sprintf(combuf, "%s %d | rpict%s%s -w0 %s > %s", vval(ANIMATE), frame,
676 greg 2.1 rendopt, viewopt(vp), rresopt, fname);
677 greg 2.2 bruncom(combuf, frame, recover); /* run in background */
678 greg 2.1 }
679    
680    
681     walkwait(first, last, vfn) /* walk-through frames */
682     int first, last;
683     char *vfn;
684     {
685     char combuf[2048];
686 greg 2.4 char *inspoint;
687 greg 2.1 register int i;
688    
689     if (!noaction && vint(INTERP)) /* create dummy frames */
690     for (i = first; i <= last; i++)
691     if (i < vint(END) && (i-1) % (vint(INTERP)+1)) {
692     sprintf(combuf, vval(BASENAME), i);
693     strcat(combuf, ".unf");
694     close(open(combuf, O_RDONLY|O_CREAT, 0666));
695     }
696     /* create command */
697 greg 2.4 sprintf(combuf, "rpict%s -w0", rendopt);
698 greg 2.1 if (vint(INTERP) || atoi(vval(MBLUR)))
699 greg 2.4 sprintf(combuf+strlen(combuf), " -z %s.zbf", vval(BASENAME));
700     sprintf(combuf+strlen(combuf), " -o %s.unf %s -S %d",
701     vval(BASENAME), rresopt, first);
702     inspoint = combuf + strlen(combuf);
703     sprintf(inspoint, " %s < %s", vval(OCTREE), vfn);
704 greg 2.2 /* run in parallel */
705 greg 2.7 i = (last-first+1)/(vint(INTERP)+1);
706     if (i < 1) i = 1;
707     if (pruncom(combuf, inspoint, i)) {
708 greg 2.2 fprintf(stderr, "%s: error rendering frames %d through %d\n",
709 greg 2.1 progname, first, last);
710     quit(1);
711     }
712     if (!noaction && vint(INTERP)) /* remove dummy frames */
713     for (i = first; i <= last; i++)
714     if (i < vint(END) && (i-1) % (vint(INTERP)+1)) {
715     sprintf(combuf, vval(BASENAME), i);
716     strcat(combuf, ".unf");
717     unlink(combuf);
718     }
719     }
720    
721    
722 greg 2.2 int
723 greg 2.1 recover(frame) /* recover the specified frame */
724     int frame;
725     {
726 greg 2.2 static int *rfrm; /* list of recovered frames */
727     static int nrfrms = 0;
728 greg 2.1 char combuf[2048];
729     char fname[128];
730     register char *cp;
731 greg 2.2 register int i;
732     /* check to see if recovered already */
733     for (i = nrfrms; i--; )
734     if (rfrm[i] == frame)
735     return(0);
736     /* build command */
737 greg 2.1 sprintf(fname, vval(BASENAME), frame);
738     if (vdef(ANIMATE))
739 greg 2.2 sprintf(combuf, "%s %d | rpict%s -w0",
740 greg 2.1 vval(ANIMATE), frame, rendopt);
741     else
742 greg 2.2 sprintf(combuf, "rpict%s -w0", rendopt);
743 greg 2.1 cp = combuf + strlen(combuf);
744     if (vint(INTERP) || atoi(vval(MBLUR))) {
745     sprintf(cp, " -z %s.zbf", fname);
746     while (*cp) cp++;
747     }
748     sprintf(cp, " -ro %s.unf", fname);
749     while (*cp) cp++;
750     if (!vdef(ANIMATE)) {
751     *cp++ = ' ';
752     strcpy(cp, vval(OCTREE));
753     }
754 greg 2.2 if (runcom(combuf)) /* run command */
755     return(1);
756     /* add frame to recovered list */
757     if (nrfrms)
758     rfrm = (int *)realloc((char *)rfrm, (nrfrms+1)*sizeof(int));
759     else
760     rfrm = (int *)malloc(sizeof(int));
761     if (rfrm == NULL) {
762     perror("malloc");
763 greg 2.1 quit(1);
764     }
765 greg 2.2 rfrm[nrfrms++] = frame;
766     return(0);
767 greg 2.1 }
768    
769    
770 greg 2.2 int
771     frecover(frame) /* recover filtered frame */
772     int frame;
773     {
774     VIEW *vp;
775     char *ex;
776    
777     vp = getview(frame);
778     ex = getexp(frame);
779     if (dofilt(frame, vp, ex, 2) && dofilt(frame, vp, ex, 1))
780     return(1);
781     return(0);
782     }
783    
784    
785 greg 2.7 archive() /* archive and remove renderings */
786 greg 2.1 {
787 greg 2.2 #define RMCOML (sizeof(rmcom)-1)
788     static char rmcom[] = "rm -f";
789 greg 2.1 register int i;
790    
791 greg 2.7 if (arcnext == arcfirst)
792     return; /* nothing to do */
793 greg 2.2 if (vdef(ARCHIVE)) { /* run archive command */
794     i = strlen(vval(ARCHIVE));
795 greg 2.7 strncpy(arcfirst-i, vval(ARCHIVE), i);
796     if (runcom(arcfirst-i)) {
797     fprintf(stderr, "%s: error running archive command\n",
798     progname);
799 greg 2.2 quit(1);
800     }
801 greg 2.1 }
802 greg 2.2 /* run remove command */
803 greg 2.7 strncpy(arcfirst-RMCOML, rmcom, RMCOML);
804     runcom(arcfirst-RMCOML);
805     arcnext = arcfirst; /* reset argument list */
806 greg 2.2 #undef RMCOML
807 greg 2.1 }
808    
809    
810 greg 2.2 int
811     dofilt(frame, vp, ep, rvr) /* filter frame */
812 greg 2.1 int frame;
813     VIEW *vp;
814     char *ep;
815 greg 2.2 int rvr;
816 greg 2.1 {
817 greg 2.2 extern int frecover();
818 greg 2.6 static int iter = 0;
819 greg 2.1 char fnbefore[128], fnafter[128];
820 greg 2.6 char combuf[1024], fname0[128], fname1[128];
821 greg 2.7 int usepinterp, usepfilt, nora_rgbe;
822 greg 2.2 int frseq[2];
823 greg 2.1 /* check what is needed */
824     usepinterp = atoi(vval(MBLUR));
825     usepfilt = pfiltalways | ep==NULL;
826 greg 2.7 if (ep != NULL && !strcmp(ep, "1"))
827     ep = "+0";
828     nora_rgbe = strcmp(vval(OVERSAMP),"1") || ep==NULL ||
829     *ep != '+' || *ep != '-' || !isint(ep);
830 greg 2.1 /* compute rendered views */
831 greg 2.2 frseq[0] = frame - ((frame-1) % (vint(INTERP)+1));
832     frseq[1] = frseq[0] + vint(INTERP) + 1;
833     if (frseq[1] > vint(END))
834     frseq[1] = vint(END);
835     if (frseq[1] == frame) { /* pfilt only */
836     frseq[0] = frseq[1];
837 greg 2.1 usepinterp = 0; /* update what's needed */
838 greg 2.7 usepfilt |= nora_rgbe;
839     } else if (frseq[0] == frame) { /* no interpolation needed */
840     if (!rvr && frame > 1+vint(INTERP)) { /* archive previous */
841     *arcnext++ = ' ';
842     sprintf(arcnext, vval(BASENAME), frame-vint(INTERP)-1);
843     while (*arcnext) arcnext++;
844     strcpy(arcnext, ".unf");
845     arcnext += 4;
846 greg 2.13 if (usepinterp || vint(INTERP)) { /* and Z-buf */
847 greg 2.7 *arcnext++ = ' ';
848     sprintf(arcnext, vval(BASENAME),
849     frame-vint(INTERP)-1);
850     while (*arcnext) arcnext++;
851     strcpy(arcnext, ".zbf");
852     arcnext += 4;
853     }
854     }
855     if (!usepinterp) /* update what's needed */
856     usepfilt |= nora_rgbe;
857 greg 2.2 } else /* interpolation needed */
858 greg 2.1 usepinterp++;
859 greg 2.2 if (frseq[1] >= astat.rnext) /* next batch unavailable */
860     frseq[1] = frseq[0];
861     sprintf(fnbefore, vval(BASENAME), frseq[0]);
862     sprintf(fnafter, vval(BASENAME), frseq[1]);
863     if (rvr == 1 && recover(frseq[0])) /* recover before frame? */
864     return(1);
865     /* generate command */
866 greg 2.1 if (usepinterp) { /* using pinterp */
867 greg 2.2 if (rvr == 2 && recover(frseq[1])) /* recover after? */
868     return(1);
869 greg 2.1 if (atoi(vval(MBLUR))) {
870     FILE *fp; /* motion blurring */
871 greg 2.6 sprintf(fname0, "%s/vw0%c", vval(DIRECTORY),
872     'a'+(iter%26));
873     if ((fp = fopen(fname0, "w")) == NULL) {
874     perror(fname0); quit(1);
875 greg 2.1 }
876     fputs(VIEWSTR, fp);
877     fprintview(vp, fp);
878     putc('\n', fp); fclose(fp);
879     if ((vp = getview(frame+1)) == NULL) {
880     fprintf(stderr,
881     "%s: unexpected error reading view for frame %d\n",
882     progname, frame+1);
883     quit(1);
884     }
885 greg 2.6 sprintf(fname1, "%s/vw1%c", vval(DIRECTORY),
886     'a'+(iter%26));
887     if ((fp = fopen(fname1, "w")) == NULL) {
888     perror(fname1); quit(1);
889 greg 2.1 }
890     fputs(VIEWSTR, fp);
891     fprintview(vp, fp);
892     putc('\n', fp); fclose(fp);
893     sprintf(combuf,
894 greg 2.6 "(pmblur %s %d %s %s; rm -f %s %s) | pinterp -B",
895 greg 2.2 *sskip(vval(MBLUR)) ? sskip2(vval(MBLUR),1) : "1",
896 greg 2.6 atoi(vval(MBLUR)),
897     fname0, fname1, fname0, fname1);
898     iter++;
899 greg 2.1 } else /* no blurring */
900     strcpy(combuf, "pinterp");
901     strcat(combuf, viewopt(vp));
902     if (vbool(RTRACE))
903 greg 2.2 sprintf(combuf+strlen(combuf), " -ff -fr '%s -w0 %s'",
904 greg 2.1 rendopt, vval(OCTREE));
905     if (vdef(PINTERP))
906     sprintf(combuf+strlen(combuf), " %s", vval(PINTERP));
907     if (usepfilt)
908     sprintf(combuf+strlen(combuf), " %s", rresopt);
909     else
910     sprintf(combuf+strlen(combuf), " %s -e %s",
911     fresopt, ep);
912     sprintf(combuf+strlen(combuf), " %s.unf %s.zbf",
913     fnbefore, fnbefore);
914 greg 2.2 if (frseq[1] != frseq[0])
915 greg 2.1 sprintf(combuf+strlen(combuf), " %s.unf %s.zbf",
916     fnafter, fnafter);
917     if (usepfilt) { /* also pfilt */
918     if (vdef(PFILT))
919     sprintf(combuf+strlen(combuf), " | pfilt %s",
920     vval(PFILT));
921     else
922     strcat(combuf, " | pfilt");
923     if (ep != NULL)
924     sprintf(combuf+strlen(combuf), " -1 -e %s %s",
925     ep, fresopt);
926     else
927     sprintf(combuf+strlen(combuf), " %s", fresopt);
928     }
929     } else if (usepfilt) { /* pfilt only */
930 greg 2.2 if (rvr == 2)
931     return(1);
932 greg 2.1 if (vdef(PFILT))
933     sprintf(combuf, "pfilt %s", vval(PFILT));
934     else
935     strcpy(combuf, "pfilt");
936     if (ep != NULL)
937     sprintf(combuf+strlen(combuf), " -1 -e %s %s %s.unf",
938     ep, fresopt, fnbefore);
939     else
940     sprintf(combuf+strlen(combuf), " %s %s.unf",
941     fresopt, fnbefore);
942     } else { /* else just check it */
943 greg 2.2 if (rvr == 2)
944     return(1);
945 greg 2.7 sprintf(combuf, "ra_rgbe -e %s -r %s.unf", ep, fnbefore);
946 greg 2.1 }
947     /* output file name */
948 greg 2.6 sprintf(fname0, vval(BASENAME), frame);
949     sprintf(combuf+strlen(combuf), " > %s.pic", fname0);
950 greg 2.2 if (rvr) /* in recovery */
951     return(runcom(combuf));
952     bruncom(combuf, frame, frecover); /* else run in background */
953     return(0);
954 greg 2.1 }
955    
956    
957     VIEW *
958     getview(n) /* get view number n */
959     int n;
960     {
961     static FILE *viewfp = NULL; /* view file pointer */
962     static int viewnum = 0; /* current view number */
963     static VIEW curview = STDVIEW; /* current view */
964     char linebuf[256];
965    
966     if (n == 0) { /* signal to close file and clean up */
967     if (viewfp != NULL) {
968     fclose(viewfp);
969     viewfp = NULL;
970     viewnum = 0;
971     copystruct(&curview, &stdview);
972     }
973     return(NULL);
974     }
975     if (viewfp == NULL) { /* open file */
976     if ((viewfp = fopen(vval(VIEWFILE), "r")) == NULL) {
977     perror(vval(VIEWFILE));
978     quit(1);
979     }
980     } else if (n < viewnum) { /* rewind file */
981 greg 2.8 if (viewnum == 1 && feof(viewfp))
982     return(&curview); /* just one view */
983 greg 2.1 if (fseek(viewfp, 0L, 0) == EOF) {
984     perror(vval(VIEWFILE));
985     quit(1);
986     }
987     copystruct(&curview, &stdview);
988     viewnum = 0;
989     }
990     while (n > viewnum) { /* scan to desired view */
991     if (fgets(linebuf, sizeof(linebuf), viewfp) == NULL)
992 greg 2.15 return(viewnum==1 ? &curview : (VIEW *)NULL);
993 greg 2.1 if (isview(linebuf) && sscanview(&curview, linebuf) > 0)
994     viewnum++;
995     }
996     return(&curview); /* return it */
997     }
998    
999    
1000     int
1001     countviews() /* count views in view file */
1002     {
1003     register int n = 0;
1004    
1005     while (getview(n+1) != NULL)
1006     n++;
1007     return(n);
1008     }
1009    
1010    
1011     char *
1012     getexp(n) /* get exposure for nth frame */
1013     int n;
1014     {
1015     extern char *fskip();
1016     static char expval[32];
1017     static FILE *expfp = NULL;
1018     static long *exppos;
1019     static int curfrm;
1020     register char *cp;
1021    
1022     if (n == 0) { /* signal to close file */
1023     if (expfp != NULL) {
1024     fclose(expfp);
1025 greg 2.14 free((char *)exppos);
1026 greg 2.1 expfp = NULL;
1027     }
1028     return(NULL);
1029 greg 2.14 } else if (n > vint(END)) /* request past end (error?) */
1030     return(NULL);
1031 greg 2.1 if (!vdef(EXPOSURE)) /* no setting (auto) */
1032     return(NULL);
1033     if (isflt(vval(EXPOSURE))) /* always the same */
1034     return(vval(EXPOSURE));
1035     if (expfp == NULL) { /* open exposure file */
1036     if ((expfp = fopen(vval(EXPOSURE), "r")) == NULL) {
1037     fprintf(stderr,
1038     "%s: cannot open exposure file \"%s\"\n",
1039     progname, vval(EXPOSURE));
1040     quit(1);
1041     }
1042     curfrm = vint(END) + 1; /* init lookup tab. */
1043     exppos = (long *)malloc(curfrm*sizeof(long *));
1044     if (exppos == NULL) {
1045     perror(progname);
1046     quit(1);
1047     }
1048     while (curfrm--)
1049     exppos[curfrm] = -1L;
1050     curfrm = 0;
1051     }
1052     /* find position in file */
1053     if (n-1 != curfrm && n != curfrm && exppos[n-1] >= 0 &&
1054     fseek(expfp, exppos[curfrm=n-1], 0) == EOF) {
1055     fprintf(stderr, "%s: seek error on exposure file\n", progname);
1056     quit(1);
1057     }
1058     while (n > curfrm) { /* read exposure */
1059     if (exppos[curfrm] < 0)
1060     exppos[curfrm] = ftell(expfp);
1061     if (fgets(expval, sizeof(expval), expfp) == NULL) {
1062     fprintf(stderr, "%s: too few exposures\n",
1063     vval(EXPOSURE));
1064     quit(1);
1065     }
1066     curfrm++;
1067     cp = fskip(expval); /* check format */
1068 greg 2.14 if (cp != NULL)
1069     while (isspace(*cp))
1070     *cp++ = '\0';
1071     if (cp == NULL || *cp) {
1072 greg 2.1 fprintf(stderr,
1073     "%s: exposure format error on line %d\n",
1074     vval(EXPOSURE), curfrm);
1075     quit(1);
1076     }
1077     }
1078     return(expval); /* return value */
1079     }
1080    
1081    
1082 greg 2.2 struct pslot *
1083     findpslot(pid) /* find or allocate a process slot */
1084     int pid;
1085     {
1086     register struct pslot *psempty = NULL;
1087     register int i;
1088    
1089     for (i = 0; i < npslots; i++) { /* look for match */
1090     if (pslot[i].pid == pid)
1091     return(pslot+i);
1092     if (psempty == NULL && pslot[i].pid == 0)
1093     psempty = pslot+i;
1094     }
1095     return(psempty); /* return emtpy slot (error if NULL) */
1096     }
1097    
1098    
1099     int
1100     donecom(ps, pn, status) /* clean up after finished process */
1101     PSERVER *ps;
1102     int pn;
1103     int status;
1104     {
1105     register PROC *pp;
1106 greg 2.18 register struct pslot *psl;
1107 greg 2.2
1108     pp = ps->proc + pn;
1109 greg 2.3 if (pp->elen) { /* pass errors */
1110 greg 2.2 if (ps->hostname[0])
1111 greg 2.3 fprintf(stderr, "%s: ", ps->hostname);
1112     fprintf(stderr, "Error output from: %s\n", pp->com);
1113 greg 2.2 fputs(pp->errs, stderr);
1114     fflush(stderr);
1115     if (ps->hostname[0])
1116     status = 1; /* because rsh doesn't return status */
1117     }
1118 greg 2.18 lastpserver = NULL;
1119     psl = findpslot(pp->pid); /* check for bruncom() slot */
1120     if (psl->pid) {
1121     if (status) {
1122     if (psl->rcvf != NULL) /* attempt recovery */
1123     status = (*psl->rcvf)(psl->fout);
1124     if (status) {
1125     fprintf(stderr,
1126     "%s: error rendering frame %d\n",
1127     progname, psl->fout);
1128     quit(1);
1129     }
1130     lastpserver = ps;
1131     }
1132     psl->pid = 0; /* free process slot */
1133     } else if (status)
1134     lastpserver = ps;
1135 greg 2.2 freestr(pp->com); /* free command string */
1136     return(status);
1137     }
1138    
1139    
1140     int
1141     serverdown() /* check status of last process server */
1142     {
1143 greg 2.18 if (lastpserver == NULL || !lastpserver->hostname[0])
1144     return(0);
1145 greg 2.2 if (pserverOK(lastpserver)) /* server still up? */
1146     return(0);
1147     delpserver(lastpserver); /* else delete it */
1148     if (pslist == NULL) {
1149     fprintf(stderr, "%s: all process servers are down\n",
1150     progname);
1151     quit(1);
1152     }
1153     return(1);
1154     }
1155    
1156    
1157     int
1158     bruncom(com, fout, rf) /* run a command in the background */
1159     char *com;
1160     int fout;
1161     int (*rf)();
1162     {
1163     int pid;
1164     register struct pslot *psl;
1165    
1166 greg 2.5 if (noaction) {
1167     if (!silent)
1168     printf("\t%s\n", com); /* echo command */
1169 greg 2.2 return(0);
1170 greg 2.5 }
1171 greg 2.18 com = savestr(com); /* else start it when we can */
1172     while ((pid = startjob(NULL, com, donecom)) == -1)
1173 greg 2.2 bwait(1);
1174 greg 2.5 if (!silent) { /* echo command */
1175 greg 2.3 PSERVER *ps;
1176     int psn = pid;
1177 greg 2.4 ps = findjob(&psn);
1178 greg 2.5 printf("\t%s\n", com);
1179 greg 2.4 printf("\tProcess started on %s\n", phostname(ps));
1180 greg 2.3 fflush(stdout);
1181     }
1182 greg 2.2 psl = findpslot(pid); /* record info. in appropriate slot */
1183     psl->pid = pid;
1184     psl->fout = fout;
1185     psl->rcvf = rf;
1186     return(pid);
1187     }
1188    
1189    
1190     bwait(ncoms) /* wait for batch job(s) to finish */
1191     int ncoms;
1192     {
1193     int status;
1194    
1195     if (noaction)
1196     return;
1197     while ((status = wait4job(NULL, -1)) != -1) {
1198 greg 2.18 serverdown(); /* update server status */
1199     if (--ncoms == 0)
1200     break; /* done enough */
1201 greg 2.2 }
1202     }
1203    
1204    
1205     int
1206 greg 2.4 pruncom(com, ppins, maxcopies) /* run a command in parallel over network */
1207     char *com, *ppins;
1208 greg 2.2 int maxcopies;
1209     {
1210     int retstatus = 0;
1211 greg 2.3 int hostcopies;
1212 greg 2.18 char buf[10240], *com1, *s;
1213 greg 2.2 int status;
1214 greg 2.17 int pfd;
1215     register int n;
1216 greg 2.2 register PSERVER *ps;
1217    
1218 greg 2.3 if (!silent)
1219 greg 2.6 printf("\t%s\n", com); /* echo command */
1220 greg 2.3 if (noaction)
1221 greg 2.2 return(0);
1222 greg 2.3 fflush(stdout);
1223 greg 2.2 /* start jobs on each server */
1224 greg 2.3 for (ps = pslist; ps != NULL; ps = ps->next) {
1225     hostcopies = 0;
1226 greg 2.4 if (maxcopies > 1 && ps->nprocs > 1 && ppins != NULL) {
1227 greg 2.17 strcpy(com1=buf, com); /* build -PP command */
1228 greg 2.4 sprintf(com1+(ppins-com), " -PP %s/%s.persist",
1229     vval(DIRECTORY), phostname(ps));
1230     strcat(com1, ppins);
1231 greg 2.17 } else
1232 greg 2.4 com1 = com;
1233 greg 2.18 while (maxcopies > 0) {
1234     s = savestr(com1);
1235     if (startjob(ps, s, donecom) != -1) {
1236     sleep(20);
1237     hostcopies++;
1238     maxcopies--;
1239     } else {
1240     freestr(s);
1241     break;
1242     }
1243 greg 2.2 }
1244 greg 2.3 if (!silent && hostcopies) {
1245     if (hostcopies > 1)
1246     printf("\t%d duplicate processes", hostcopies);
1247     else
1248     printf("\tProcess");
1249 greg 2.4 printf(" started on %s\n", phostname(ps));
1250 greg 2.3 fflush(stdout);
1251     }
1252     }
1253 greg 2.2 /* wait for jobs to finish */
1254     while ((status = wait4job(NULL, -1)) != -1)
1255 greg 2.18 retstatus += status && !serverdown();
1256 greg 2.17 /* terminate parallel rpict's */
1257 greg 2.18 for (ps = pslist; ps != NULL; ps = ps->next) {
1258     sprintf(buf, "%s/%s.persist", vval(DIRECTORY), phostname(ps));
1259 greg 2.17 if ((pfd = open(buf, O_RDONLY)) >= 0) {
1260     n = read(pfd, buf, sizeof(buf)-1); /* get PID */
1261     buf[n] = '\0';
1262     close(pfd);
1263     for (n = 0; buf[n] && !isspace(buf[n]); n++)
1264     ;
1265     /* terminate */
1266     sprintf(buf, "kill -ALRM %d", atoi(buf+n));
1267 greg 2.18 wait4job(ps, startjob(ps, buf, NULL));
1268 greg 2.17 }
1269     }
1270 greg 2.2 return(retstatus);
1271     }
1272    
1273    
1274     runcom(cs) /* run a command locally and wait for it */
1275 greg 2.1 char *cs;
1276     {
1277     if (!silent) /* echo it */
1278     printf("\t%s\n", cs);
1279     if (noaction)
1280     return(0);
1281     fflush(stdout); /* flush output and pass to shell */
1282     return(system(cs));
1283     }
1284    
1285    
1286     rmfile(fn) /* remove a file */
1287     char *fn;
1288     {
1289     if (!silent)
1290     #ifdef MSDOS
1291     printf("\tdel %s\n", fn);
1292     #else
1293     printf("\trm -f %s\n", fn);
1294     #endif
1295     if (noaction)
1296     return(0);
1297     return(unlink(fn));
1298     }
1299    
1300    
1301     badvalue(vc) /* report bad variable value and exit */
1302     int vc;
1303     {
1304     fprintf(stderr, "%s: bad value for variable '%s'\n",
1305     progname, vnam(vc));
1306     quit(1);
1307     }