--- ray/src/util/ranimate.c	1996/01/18 11:25:11	2.2
+++ ray/src/util/ranimate.c	1996/07/10 15:14:59	2.19
@@ -1,4 +1,4 @@
-/* Copyright (c) 1995 Regents of the University of California */
+/* Copyright (c) 1996 Regents of the University of California */
 
 #ifndef lint
 static char SCCSid[] = "$SunId$ LBL";
@@ -15,6 +15,12 @@ static char SCCSid[] = "$SunId$ LBL";
 #include "view.h"
 #include "vars.h"
 #include "netproc.h"
+				/* default remote shell */
+#ifdef _AUX_SOURCE
+#define REMSH		"remsh"
+#else
+#define REMSH		"rsh"
+#endif
 				/* input variables */
 #define HOST		0		/* rendering host machine */
 #define RENDER		1		/* rendering options */
@@ -38,8 +44,9 @@ static char SCCSid[] = "$SunId$ LBL";
 #define DISKSPACE	19		/* how much disk space to use */
 #define RESOLUTION	20		/* desired final resolution */
 #define EXPOSURE	21		/* how to compute exposure */
+#define RSH		22		/* remote shell script or program */
 
-int	NVARS = 22;		/* total number of variables */
+int	NVARS = 23;		/* total number of variables */
 
 VARIABLE	vv[] = {		/* variable-value pairs */
 	{"host",	4,	0,	NULL,	NULL},
@@ -57,13 +64,14 @@ VARIABLE	vv[] = {		/* variable-value pairs */
 	{"ANIMATE",	2,	0,	NULL,	onevalue},
 	{"TRANSFER",	2,	0,	NULL,	onevalue},
 	{"ARCHIVE",	2,	0,	NULL,	onevalue},
-	{"INTERP",	3,	0,	NULL,	intvalue},
-	{"OVERSAMP",	2,	0,	NULL,	fltvalue},
+	{"INTERPOLATE",	3,	0,	NULL,	intvalue},
+	{"OVERSAMPLE",	2,	0,	NULL,	fltvalue},
 	{"MBLUR",	2,	0,	NULL,	onevalue},
 	{"RTRACE",	2,	0,	NULL,	boolvalue},
 	{"DISKSPACE",	3,	0,	NULL,	fltvalue},
 	{"RESOLUTION",	3,	0,	NULL,	onevalue},
 	{"EXPOSURE",	3,	0,	NULL,	onevalue},
+	{"RSH",		3,	0,	NULL,	onevalue},
 };
 
 #define SFNAME	"STATUS"		/* status file name */
@@ -84,11 +92,15 @@ int	nowarn = 0;		/* turn warnings off? */
 int	silent = 0;		/* silent mode? */
 int	noaction = 0;		/* take no action? */
 
+char	*remsh;			/* remote shell program/script */
 char	rendopt[2048] = "";	/* rendering options */
 char	rresopt[32];		/* rendering resolution options */
 char	fresopt[32];		/* filter resolution options */
 int	pfiltalways;		/* always use pfilt? */
 
+char	arcargs[10240];		/* files to archive */
+char	*arcfirst, *arcnext;	/* pointers to first and next argument */
+
 struct pslot {
 	int	pid;			/* process ID (0 if empty) */
 	int	fout;			/* output frame number */
@@ -96,15 +108,18 @@ struct pslot {
 }	*pslot;			/* process slots */
 int	npslots;		/* number of process slots */
 
-int	lastpid;		/* ID of last completed background process */
-PSERVER	*lastpserver;		/* last process server used */
+#define phostname(ps)	((ps)->hostname[0] ? (ps)->hostname : astat.host)
 
 struct pslot	*findpslot();
 
+PSERVER	*lastpserver;		/* last process server with error */
+
 VIEW	*getview();
 char	*getexp();
 
+extern time_t	fdate(), time();
 
+
 main(argc, argv)
 int	argc;
 char	*argv[];
@@ -161,8 +176,11 @@ char	*argv[];
 		argv[i] = vval(NEXTANIM);	/* just change input file */
 		if (!silent)
 			printargs(argc, argv, stdout);
-		execvp(progname, argv);		/* pass to next */
-		quit(1);			/* shouldn't return */
+		if ((argv[0] = getpath(progname,getenv("PATH"),X_OK)) == NULL)
+			fprintf(stderr, "%s: command not found\n", progname);
+		else
+			execv(progname, argv);
+		quit(1);
 	}
 	quit(0);
 userr:
@@ -173,13 +191,13 @@ userr:
 
 getastat()			/* check/set animation status */
 {
-	char	buf[256];
+	char	sfname[256];
 	FILE	*fp;
 
-	sprintf(buf, "%s/%s", vval(DIRECTORY), SFNAME);
-	if ((fp = fopen(buf, "r")) == NULL) {
+	sprintf(sfname, "%s/%s", vval(DIRECTORY), SFNAME);
+	if ((fp = fopen(sfname, "r")) == NULL) {
 		if (errno != ENOENT) {
-			perror(buf);
+			perror(sfname);
 			return(-1);
 		}
 		astat.rnext = astat.fnext = astat.tnext = 0;
@@ -199,8 +217,7 @@ getastat()			/* check/set animation status */
 		goto fmterr;
 	fclose(fp);
 	if (astat.pid != 0) {			/* thinks it's still running */
-		gethostname(buf, sizeof(buf));
-		if (strcmp(buf, astat.host)) {
+		if (strcmp(myhostname(), astat.host)) {
 			fprintf(stderr,
 			"%s: process %d may still be running on host %s\n",
 					progname, astat.pid, astat.host);
@@ -218,14 +235,19 @@ getastat()			/* check/set animation status */
 				progname, astat.cfname);
 		return(-1);
 	}
+						/* check control file mods. */
+	if (!nowarn && fdate(cfname) > fdate(sfname))
+		fprintf(stderr,
+			"%s: warning - control file modified since last run\n",
+				progname);
 setours:					/* set our values */
-	gethostname(astat.host, sizeof(astat.host));
+	strcpy(astat.host, myhostname());
 	astat.pid = getpid();
 	strcpy(astat.cfname, cfname);
 	return(0);
 fmterr:
 	fprintf(stderr, "%s: format error in status file \"%s\"\n",
-			progname, buf);
+			progname, sfname);
 	fclose(fp);
 	return(-1);
 }
@@ -277,6 +299,8 @@ checkdir()			/* make sure we have our directory */
 
 setdefaults()			/* set default values */
 {
+	extern char	*atos();
+	int	decades;
 	char	buf[256];
 
 	if (vdef(ANIMATE)) {
@@ -300,12 +324,19 @@ setdefaults()			/* set default values */
 		vdef(START)++;
 	}
 	if (!vdef(END)) {
-		sprintf(buf, "%d", countviews());
+		sprintf(buf, "%d", countviews()+vint(START)-1);
 		vval(END) = savqstr(buf);
 		vdef(END)++;
 	}
+	if (vint(END) < vint(START)) {
+		fprintf(stderr, "%s: ending frame less than starting frame\n",
+				progname);
+		quit(1);
+	}
 	if (!vdef(BASENAME)) {
-		sprintf(buf, "%s/frame%%03d", vval(DIRECTORY));
+		decades = (int)log10((double)vint(END)) + 1;
+		if (decades < 3) decades = 3;
+		sprintf(buf, "%s/frame%%0%dd", vval(DIRECTORY), decades);
 		vval(BASENAME) = savqstr(buf);
 		vdef(BASENAME)++;
 	}
@@ -337,6 +368,17 @@ setdefaults()			/* set default values */
 		vval(DISKSPACE) = "100";
 		vdef(DISKSPACE)++;
 	}
+	if (!vdef(RSH)) {
+		vval(RSH) = REMSH;
+		vdef(RSH)++;
+	}
+				/* locate remote shell program */
+	atos(buf, sizeof(buf), vval(RSH));
+	if ((remsh = getpath(buf, getenv("PATH"), X_OK)) != NULL)
+		remsh = savqstr(remsh);
+	else
+		remsh = vval(RSH);	/* will generate error if used */
+
 				/* append rendering options */
 	if (vdef(RENDER))
 		sprintf(rendopt+strlen(rendopt), " %s", vval(RENDER));
@@ -399,8 +441,8 @@ sethosts()			/* set up process servers */
 }
 
 
-getradfile(rfname)		/* run rad and get needed variables */
-char	*rfname;
+getradfile(rfargs)		/* run rad and get needed variables */
+char	*rfargs;
 {
 	static short	mvar[] = {OCTREE,PFILT,RESOLUTION,EXPOSURE,-1};
 	char	combuf[256];
@@ -410,7 +452,7 @@ char	*rfname;
 	sprintf(rendopt, " @%s/render.opt", vval(DIRECTORY));
 	sprintf(combuf,
 	"rad -v 0 -s -e -w %s OPTFILE=%s | egrep '^[ \t]*(NOMATCH",
-			rfname, rendopt+2);
+			rfargs, rendopt+2);
 	cp = combuf;
 	while (*cp) cp++;		/* match unset variables */
 	for (i = 0; mvar[i] >= 0; i++)
@@ -422,8 +464,8 @@ char	*rfname;
 	sprintf(cp, ")[ \t]*=' > %s/radset.var", vval(DIRECTORY));
 	cp += 11;			/* point to file name */
 	if (system(combuf)) {
-		fprintf(stderr, "%s: bad rad input file \"%s\"\n",
-				progname, rfname);
+		fprintf(stderr, "%s: error executing rad command:\n\t%s\n",
+				progname, combuf);
 		quit(1);
 	}
 	loadvars(cp);			/* load variables and remove file */
@@ -442,9 +484,9 @@ animate()			/* run animation */
 	i = sscanf(vval(RESOLUTION), "%d %d %f", &xres, &yres, &pa);
 	mult = vflt(OVERSAMP);
 	if (i == 3) {
-		sprintf(rresopt, "-x %d -y %d -pa %f", (int)(mult*xres),
+		sprintf(rresopt, "-x %d -y %d -pa %.3f", (int)(mult*xres),
 				(int)(mult*yres), pa);
-		sprintf(fresopt, "-x %d -y %d -pa %f", xres, yres, pa);
+		sprintf(fresopt, "-x %d -y %d -pa %.3f", xres, yres, pa);
 	} else if (i) {
 		if (i == 1) yres = xres;
 		sprintf(rresopt, "-x %d -y %d", (int)(mult*xres),
@@ -472,7 +514,7 @@ animate()			/* run animation */
 					/* figure # frames per batch */
 	d1 = mult*xres*mult*yres*4;		/* space for orig. picture */
 	if ((i=vint(INTERP)) || atoi(vval(MBLUR)))
-		d1 += mult*xres*mult*yres*4;	/* space for z-buffer */
+		d1 += mult*xres*mult*yres*sizeof(float);	/* Z-buffer */
 	d2 = xres*yres*4;			/* space for final picture */
 	frames_batch = (i+1)*(vflt(DISKSPACE)*1048576.-d1)/(d1+i*d2);
 	if (frames_batch < i+2) {
@@ -480,6 +522,11 @@ animate()			/* run animation */
 				progname);
 		quit(1);
 	}
+					/* initialize archive argument list */
+	i = 16;
+	if (vdef(ARCHIVE) && strlen(vval(ARCHIVE)) > i)
+		i = strlen(vval(ARCHIVE));
+	arcnext = arcfirst = arcargs + i;
 					/* initialize status file */
 	if (astat.rnext == 0)
 		astat.rnext = astat.fnext = astat.tnext = vint(START);
@@ -574,7 +621,7 @@ filterframes()				/* catch up with filtering */
 		dofilt(i, vp, getexp(i), 0);		/* filter frame */
 	}
 	bwait(0);			/* wait for filter processes */
-	archive(astat.fnext, i-1);	/* archive originals */
+	archive();			/* archive originals */
 	astat.fnext = i;		/* update status */
 	putastat();
 }
@@ -636,6 +683,7 @@ int	first, last;
 char	*vfn;
 {
 	char	combuf[2048];
+	char	*inspoint;
 	register int	i;
 
 	if (!noaction && vint(INTERP))		/* create dummy frames */
@@ -646,13 +694,17 @@ char	*vfn;
 				close(open(combuf, O_RDONLY|O_CREAT, 0666));
 			}
 					/* create command */
-	sprintf(combuf, "rpict%s -w0 ", rendopt);
+	sprintf(combuf, "rpict%s -w0", rendopt);
 	if (vint(INTERP) || atoi(vval(MBLUR)))
-		sprintf(combuf+strlen(combuf), "-z %s.zbf ", vval(BASENAME));
-	sprintf(combuf+strlen(combuf), "-o %s.unf %s -S %d %s < %s",
-			vval(BASENAME), rresopt, first, vval(OCTREE), vfn);
+		sprintf(combuf+strlen(combuf), " -z %s.zbf", vval(BASENAME));
+	sprintf(combuf+strlen(combuf), " -o %s.unf %s -S %d",
+			vval(BASENAME), rresopt, first);
+	inspoint = combuf + strlen(combuf);
+	sprintf(inspoint, " %s < %s", vval(OCTREE), vfn);
 					/* run in parallel */
-	if (pruncom(combuf, (last-first+1)/(vint(INTERP)+1))) {
+	i = (last-first+1)/(vint(INTERP)+1);
+	if (i < 1) i = 1;
+	if (pruncom(combuf, inspoint, i)) {
 		fprintf(stderr, "%s: error rendering frames %d through %d\n",
 				progname, first, last);
 		quit(1);
@@ -730,53 +782,27 @@ int	frame;
 }
 
 
-archive(first, last)			/* archive and remove renderings */
-int	first, last;
+archive()			/* archive and remove renderings */
 {
 #define RMCOML	(sizeof(rmcom)-1)
 	static char	rmcom[] = "rm -f";
-	int	offset = RMCOML;
-	char	combuf[10240];
-	struct stat	stb;
-	register char	*cp;
 	register int	i;
 
-	if (noaction)
-		return;
-	if (vdef(ARCHIVE) && strlen(vval(ARCHIVE)) > offset)
-		offset = strlen(vval(ARCHIVE));
-	cp = combuf + offset;
-	*cp++ = ' ';				/* make argument list */
-	for (i = first; i <= last; i++) {
-		sprintf(cp, vval(BASENAME), i);
-		strcat(cp, ".unf");
-		if (stat(cp, &stb) == 0 && stb.st_size > 0) {	/* non-zero? */
-			while (*cp) cp++;
-			*cp++ = ' ';
-			sprintf(cp, vval(BASENAME), i);
-			strcat(cp, ".zbf");
-			if (access(cp, F_OK) == 0) {		/* exists? */
-				while (*cp) cp++;
-				*cp++ = ' ';
-			}
-		}
-	}
-	*--cp = '\0';
-	if (cp <= combuf + offset)		/* no files? */
-		return;
+	if (arcnext == arcfirst)
+		return;				/* nothing to do */
 	if (vdef(ARCHIVE)) {			/* run archive command */
 		i = strlen(vval(ARCHIVE));
-		strncpy(combuf+offset-i, vval(ARCHIVE), i);
-		if (runcom(combuf+offset-i)) {
-			fprintf(stderr,
-		"%s: error running archive command on frames %d through %d\n",
-					progname, first, last);
+		strncpy(arcfirst-i, vval(ARCHIVE), i);
+		if (runcom(arcfirst-i)) {
+			fprintf(stderr, "%s: error running archive command\n",
+					progname);
 			quit(1);
 		}
 	}
 						/* run remove command */
-	strncpy(combuf+offset-RMCOML, rmcom, RMCOML);
-	runcom(combuf+offset-RMCOML);
+	strncpy(arcfirst-RMCOML, rmcom, RMCOML);
+	runcom(arcfirst-RMCOML);
+	arcnext = arcfirst;			/* reset argument list */
 #undef RMCOML
 }
 
@@ -789,13 +815,18 @@ char	*ep;
 int	rvr;
 {
 	extern int	frecover();
+	static int	iter = 0;
 	char	fnbefore[128], fnafter[128];
-	char	combuf[1024], fname[128];
-	int	usepinterp, usepfilt;
+	char	combuf[1024], fname0[128], fname1[128];
+	int	usepinterp, usepfilt, nora_rgbe;
 	int	frseq[2];
 						/* check what is needed */
 	usepinterp = atoi(vval(MBLUR));
 	usepfilt = pfiltalways | ep==NULL;
+	if (ep != NULL && !strcmp(ep, "1"))
+		ep = "+0";
+	nora_rgbe = strcmp(vval(OVERSAMP),"1") || ep==NULL ||
+			*ep != '+' || *ep != '-' || !isint(ep);
 						/* compute rendered views */
 	frseq[0] = frame - ((frame-1) % (vint(INTERP)+1));
 	frseq[1] = frseq[0] + vint(INTERP) + 1;
@@ -804,11 +835,25 @@ int	rvr;
 	if (frseq[1] == frame) {			/* pfilt only */
 		frseq[0] = frseq[1];
 		usepinterp = 0;			/* update what's needed */
-		usepfilt |= vflt(OVERSAMP)>1.01 || strcmp(ep,"1");
-	} else if (frseq[0] == frame) {		/* no interpolation */
-						/* update what's needed */
-		if (!usepinterp)
-			usepfilt |= vflt(OVERSAMP)>1.01 || strcmp(ep,"1");
+		usepfilt |= nora_rgbe;
+	} else if (frseq[0] == frame) {		/* no interpolation needed */
+		if (!rvr && frame > 1+vint(INTERP)) {	/* archive previous */
+			*arcnext++ = ' ';
+			sprintf(arcnext, vval(BASENAME), frame-vint(INTERP)-1);
+			while (*arcnext) arcnext++;
+			strcpy(arcnext, ".unf");
+			arcnext += 4;
+			if (usepinterp || vint(INTERP)) {	/* and Z-buf */
+				*arcnext++ = ' ';
+				sprintf(arcnext, vval(BASENAME),
+						frame-vint(INTERP)-1);
+				while (*arcnext) arcnext++;
+				strcpy(arcnext, ".zbf");
+				arcnext += 4;
+			}
+		}
+		if (!usepinterp)		/* update what's needed */
+			usepfilt |= nora_rgbe;
 	} else					/* interpolation needed */
 		usepinterp++;
 	if (frseq[1] >= astat.rnext)		/* next batch unavailable */
@@ -823,9 +868,10 @@ int	rvr;
 			return(1);
 		if (atoi(vval(MBLUR))) {
 			FILE	*fp;		/* motion blurring */
-			sprintf(fname, "%s/vw0", vval(DIRECTORY));
-			if ((fp = fopen(fname, "w")) == NULL) {
-				perror(fname); quit(1);
+			sprintf(fname0, "%s/vw0%c", vval(DIRECTORY),
+					'a'+(iter%26));
+			if ((fp = fopen(fname0, "w")) == NULL) {
+				perror(fname0); quit(1);
 			}
 			fputs(VIEWSTR, fp);
 			fprintview(vp, fp);
@@ -836,19 +882,20 @@ int	rvr;
 						progname, frame+1);
 				quit(1);
 			}
-			sprintf(fname, "%s/vw1", vval(DIRECTORY));
-			if ((fp = fopen(fname, "w")) == NULL) {
-				perror(fname); quit(1);
+			sprintf(fname1, "%s/vw1%c", vval(DIRECTORY),
+					'a'+(iter%26));
+			if ((fp = fopen(fname1, "w")) == NULL) {
+				perror(fname1); quit(1);
 			}
 			fputs(VIEWSTR, fp);
 			fprintview(vp, fp);
 			putc('\n', fp); fclose(fp);
 			sprintf(combuf,
-	"(pmblur %s %d %s/vw0 %s/vw1; rm -f %s/vw0 %s/vw1) | pinterp -B",
+			"(pmblur %s %d %s %s; rm -f %s %s) | pinterp -B",
 			*sskip(vval(MBLUR)) ? sskip2(vval(MBLUR),1) : "1",
-					atoi(vval(MBLUR)), vval(DIRECTORY),
-					vval(DIRECTORY), vval(DIRECTORY),
-					vval(DIRECTORY), vval(DIRECTORY));
+					atoi(vval(MBLUR)),
+					fname0, fname1, fname0, fname1);
+			iter++;
 		} else				/* no blurring */
 			strcpy(combuf, "pinterp");
 		strcat(combuf, viewopt(vp));
@@ -895,11 +942,11 @@ int	rvr;
 	} else {				/* else just check it */
 		if (rvr == 2)
 			return(1);
-		sprintf(combuf, "ra_rgbe -r %s.unf", fnbefore);
+		sprintf(combuf, "ra_rgbe -e %s -r %s.unf", ep, fnbefore);
 	}
 						/* output file name */
-	sprintf(fname, vval(BASENAME), frame);
-	sprintf(combuf+strlen(combuf), " > %s.pic", fname);
+	sprintf(fname0, vval(BASENAME), frame);
+	sprintf(combuf+strlen(combuf), " > %s.pic", fname0);
 	if (rvr)				/* in recovery */
 		return(runcom(combuf));
 	bruncom(combuf, frame, frecover);	/* else run in background */
@@ -931,6 +978,8 @@ int	n;
 			quit(1);
 		}
 	} else if (n < viewnum) {	/* rewind file */
+		if (viewnum == 1 && feof(viewfp))
+			return(&curview);		/* just one view */
 		if (fseek(viewfp, 0L, 0) == EOF) {
 			perror(vval(VIEWFILE));
 			quit(1);
@@ -940,7 +989,7 @@ int	n;
 	}
 	while (n > viewnum) {		/* scan to desired view */
 		if (fgets(linebuf, sizeof(linebuf), viewfp) == NULL)
-			return(NULL);
+			return(viewnum==1 ? &curview : (VIEW *)NULL);
 		if (isview(linebuf) && sscanview(&curview, linebuf) > 0)
 			viewnum++;
 	}
@@ -973,10 +1022,12 @@ int	n;
 	if (n == 0) {				/* signal to close file */
 		if (expfp != NULL) {
 			fclose(expfp);
+			free((char *)exppos);
 			expfp = NULL;
 		}
 		return(NULL);
-	}
+	} else if (n > vint(END))		/* request past end (error?) */
+		return(NULL);
 	if (!vdef(EXPOSURE))			/* no setting (auto) */
 		return(NULL);
 	if (isflt(vval(EXPOSURE)))		/* always the same */
@@ -1014,13 +1065,15 @@ int	n;
 		}
 		curfrm++;
 		cp = fskip(expval);			/* check format */
-		if (cp == NULL || *cp != '\n') {
+		if (cp != NULL)
+			while (isspace(*cp))
+				*cp++ = '\0';
+		if (cp == NULL || *cp) {
 			fprintf(stderr,
 				"%s: exposure format error on line %d\n",
 					vval(EXPOSURE), curfrm);
 			quit(1);
 		}
-		*cp = '\0';
 	}
 	return(expval);				/* return value */
 }
@@ -1050,23 +1103,36 @@ int	pn;
 int	status;
 {
 	register PROC	*pp;
+	register struct pslot	*psl;
 
 	pp = ps->proc + pn;
-	if (!silent) {			/* echo command */
-		if (ps->hostname[0])
-			printf("On %s:", ps->hostname);
-		printf("\t%s\n", pp->com);
-		fflush(stdout);
-	}
 	if (pp->elen) {			/* pass errors */
+		if (ps->hostname[0])
+			fprintf(stderr, "%s: ", ps->hostname);
+		fprintf(stderr, "Error output from: %s\n", pp->com);
 		fputs(pp->errs, stderr);
 		fflush(stderr);
 		if (ps->hostname[0])
 			status = 1;	/* because rsh doesn't return status */
 	}
+	lastpserver = NULL;
+	psl = findpslot(pp->pid);	/* check for bruncom() slot */
+	if (psl->pid) {
+		if (status) {
+			if (psl->rcvf != NULL)	/* attempt recovery */
+				status = (*psl->rcvf)(psl->fout);
+			if (status) {
+				fprintf(stderr,
+					"%s: error rendering frame %d\n",
+						progname, psl->fout);
+				quit(1);
+			}
+			lastpserver = ps;
+		}
+		psl->pid = 0;			/* free process slot */
+	} else if (status)
+		lastpserver = ps;
 	freestr(pp->com);		/* free command string */
-	lastpid = pp->pid;		/* record PID for bwait() */
-	lastpserver = ps;		/* record server for serverdown() */
 	return(status);
 }
 
@@ -1074,6 +1140,8 @@ int	status;
 int
 serverdown()			/* check status of last process server */
 {
+	if (lastpserver == NULL || !lastpserver->hostname[0])
+		return(0);
 	if (pserverOK(lastpserver))	/* server still up? */
 		return(0);
 	delpserver(lastpserver);	/* else delete it */
@@ -1097,12 +1165,20 @@ int	(*rf)();
 
 	if (noaction) {
 		if (!silent)
-			printf("\t%s\n", com);	/* just echo it */
+			printf("\t%s\n", com);	/* echo command */
 		return(0);
 	}
-					/* else start it when we can */
-	while ((pid = startjob(NULL, savestr(com), donecom)) == -1)
+	com = savestr(com);		/* else start it when we can */
+	while ((pid = startjob(NULL, com, donecom)) == -1)
 		bwait(1);
+	if (!silent) {				/* echo command */
+		PSERVER	*ps;
+		int	psn = pid;
+		ps = findjob(&psn);
+		printf("\t%s\n", com);
+		printf("\tProcess started on %s\n", phostname(ps));
+		fflush(stdout);
+	}
 	psl = findpslot(pid);		/* record info. in appropriate slot */
 	psl->pid = pid;
 	psl->fout = fout;
@@ -1115,53 +1191,82 @@ bwait(ncoms)				/* wait for batch job(s) to finish */
 int	ncoms;
 {
 	int	status;
-	register struct pslot	*psl;
 
 	if (noaction)
 		return;
 	while ((status = wait4job(NULL, -1)) != -1) {
-		psl = findpslot(lastpid);
-		if (status) {		/* attempt recovery */
-			serverdown();	/* check server */
-			if (psl->rcvf == NULL || (*psl->rcvf)(psl->fout)) {
-				fprintf(stderr,
-					"%s: error rendering frame %d\n",
-						progname, psl->fout);
-				quit(1);
-			}
-		}
-		psl->pid = 0;		/* free process slot */
-		if (!--ncoms)
-			return;		/* done enough */
+		serverdown();		/* update server status */
+		if (--ncoms == 0)
+			break;		/* done enough */
 	}
 }
 
 
 int
-pruncom(com, maxcopies)		/* run a command in parallel over network */
-char	*com;
+pruncom(com, ppins, maxcopies)	/* run a command in parallel over network */
+char	*com, *ppins;
 int	maxcopies;
 {
 	int	retstatus = 0;
+	int	hostcopies;
+	char	buf[10240], *com1, *s;
 	int	status;
+	int	pfd;
+	register int	n;
 	register PSERVER	*ps;
 
-	if (noaction) {
-		if (!silent)
-			printf("\t%s\n", com);	/* just echo */
+	if (!silent)
+		printf("\t%s\n", com);	/* echo command */
+	if (noaction)
 		return(0);
-	}
+	fflush(stdout);
 					/* start jobs on each server */
-	for (ps = pslist; ps != NULL; ps = ps->next)
-		while (maxcopies > 0 &&
-				startjob(ps, savestr(com), donecom) != -1) {
-			sleep(10);
-			maxcopies--;
+	for (ps = pslist; ps != NULL; ps = ps->next) {
+		hostcopies = 0;
+		if (maxcopies > 1 && ps->nprocs > 1 && ppins != NULL) {
+			strcpy(com1=buf, com);	/* build -PP command */
+			sprintf(com1+(ppins-com), " -PP %s/%s.persist",
+					vval(DIRECTORY), phostname(ps));
+			strcat(com1, ppins);
+		} else
+			com1 = com;
+		while (maxcopies > 0) {
+			s = savestr(com1);
+			if (startjob(ps, s, donecom) != -1) {
+				sleep(20);
+				hostcopies++;
+				maxcopies--;
+			} else {
+				freestr(s);
+				break;
+			}
 		}
+		if (!silent && hostcopies) {
+			if (hostcopies > 1)
+				printf("\t%d duplicate processes", hostcopies);
+			else
+				printf("\tProcess");
+			printf(" started on %s\n", phostname(ps));
+			fflush(stdout);
+		}
+	}
 					/* wait for jobs to finish */
 	while ((status = wait4job(NULL, -1)) != -1)
-		if (status)
-			retstatus += !serverdown();	/* check server */
+		retstatus += status && !serverdown();
+					/* terminate parallel rpict's */
+	for (ps = pslist; ps != NULL; ps = ps->next) {
+		sprintf(buf, "%s/%s.persist", vval(DIRECTORY), phostname(ps));
+		if ((pfd = open(buf, O_RDONLY)) >= 0) {
+			n = read(pfd, buf, sizeof(buf)-1);	/* get PID */
+			buf[n] = '\0';
+			close(pfd);
+			for (n = 0; buf[n] && !isspace(buf[n]); n++)
+				;
+								/* terminate */
+			sprintf(buf, "kill -ALRM %d", atoi(buf+n));
+			wait4job(ps, startjob(ps, buf, NULL));
+		}
+	}
 	return(retstatus);
 }