| 17 |
|
|
| 18 |
|
/* set the following to 0 to forgo forking */ |
| 19 |
|
#ifndef MAXFORK |
| 20 |
< |
#define MAXFORK 2 /* max. unreaped child processes */ |
| 20 |
> |
#define MAXFORK 3 /* allotment of duped processes */ |
| 21 |
|
#endif |
| 22 |
|
|
| 23 |
|
/* rpict command */ |
| 123 |
|
} |
| 124 |
|
init(argc, argv); |
| 125 |
|
rpiece(); |
| 126 |
< |
rval = cleanup(); |
| 126 |
> |
rval = cleanup(0); |
| 127 |
|
exit(rval); |
| 128 |
|
} |
| 129 |
|
|
| 244 |
|
if (sscanf(buf, "%d %d", xp, yp) == 2) |
| 245 |
|
return(1); |
| 246 |
|
fprintf(stderr, "%s: input format error\n", progname); |
| 247 |
< |
exit(1); |
| 247 |
> |
exit(cleanup(1)); |
| 248 |
|
} |
| 249 |
|
|
| 250 |
|
|
| 251 |
|
int |
| 252 |
< |
cleanup() /* close rpict process and clean up */ |
| 252 |
> |
cleanup(rstat) /* close rpict process and clean up */ |
| 253 |
> |
int rstat; |
| 254 |
|
{ |
| 255 |
< |
register int pid; |
| 255 |
< |
int status, rstat = 0; |
| 255 |
> |
int status; |
| 256 |
|
|
| 257 |
|
free((char *)pbuf); |
| 258 |
|
fclose(torp); |
| 259 |
|
fclose(fromrp); |
| 260 |
< |
while ((pid = wait(&status)) != -1) |
| 260 |
> |
while (wait(&status) != -1) |
| 261 |
|
if (rstat == 0) |
| 262 |
|
rstat = status>>8 & 0xff; |
| 263 |
|
return(rstat); |
| 292 |
|
default: |
| 293 |
|
fprintf(stderr, "%s: unknown view type '-vt%c'\n", |
| 294 |
|
progname, ourview.type); |
| 295 |
< |
exit(1); |
| 295 |
> |
exit(cleanup(1)); |
| 296 |
|
} |
| 297 |
|
pview.hoff += xorg - 0.5*(hmult-1); |
| 298 |
|
pview.voff += yorg - 0.5*(vmult-1); |
| 321 |
|
if (xpos < 0 | ypos < 0 | xpos >= hmult | ypos >= vmult) { |
| 322 |
|
fprintf(stderr, "%s: requested piece (%d,%d) out of range\n", |
| 323 |
|
progname, xpos, ypos); |
| 324 |
< |
exit(1); |
| 324 |
> |
exit(cleanup(1)); |
| 325 |
|
} |
| 326 |
|
/* check header from rpict */ |
| 327 |
|
getheader(fromrp, NULL); |
| 328 |
|
if (fscnresolu(&hr, &vr, fromrp) < 0 || hr != hres || vr != vres) { |
| 329 |
|
fprintf(stderr, "%s: resolution mismatch from %s\n", |
| 330 |
|
progname, rpargv[0]); |
| 331 |
< |
exit(1); |
| 331 |
> |
exit(cleanup(1)); |
| 332 |
|
} |
| 333 |
|
/* load new piece into buffer */ |
| 334 |
|
for (y = 0; y < vr; y++) |
| 335 |
|
if (freadcolrs(pbuf+y*hr, hr, fromrp) < 0) { |
| 336 |
|
fprintf(stderr, "%s: read error from %s\n", |
| 337 |
|
progname, rpargv[0]); |
| 338 |
< |
exit(1); |
| 338 |
> |
exit(cleanup(1)); |
| 339 |
|
} |
| 340 |
|
#if MAXFORK |
| 341 |
|
/* fork so we don't slow rpict down */ |
| 342 |
|
if ((pid = fork()) > 0) { |
| 343 |
< |
if (++nforked > MAXFORK) { |
| 343 |
> |
if (++nforked >= MAXFORK) { |
| 344 |
|
wait(&status); /* reap a child */ |
| 345 |
|
if (status) |
| 346 |
< |
exit(status>>8 & 0xff); |
| 346 |
> |
exit(cleanup(status>>8 & 0xff)); |
| 347 |
|
nforked--; |
| 348 |
|
} |
| 349 |
|
return(pid); |
