39 |
|
#define MAXFORK 0 |
40 |
|
#endif |
41 |
|
#endif |
42 |
< |
|
42 |
> |
/* protection from SYSV signals(!) */ |
43 |
> |
#if defined(sgi) || defined(hpux) |
44 |
> |
#define guard_io() sighold(SIGALRM) |
45 |
> |
#define unguard() sigrelse(SIGALRM) |
46 |
> |
#endif |
47 |
> |
#ifndef guard_io |
48 |
> |
#define guard_io() 0 |
49 |
> |
#define unguard() 0 |
50 |
> |
#endif |
51 |
|
/* rpict command */ |
52 |
|
char *rpargv[128] = {"rpict", "-S", "1", "-x", "512", "-y", "512", "-pa", "1"}; |
53 |
|
int rpargc = 9; |
359 |
|
exit(cleanup(1)); |
360 |
|
} |
361 |
|
/* check header from rpict */ |
362 |
+ |
guard_io(); |
363 |
|
getheader(fromrp, NULL, NULL); |
364 |
|
if (!fscnresolu(&hr, &vr, fromrp) || hr != hres | vr != vres) { |
365 |
|
fprintf(stderr, "%s: resolution mismatch from %s\n", |
366 |
|
progname, rpargv[0]); |
367 |
|
exit(cleanup(1)); |
368 |
|
} |
369 |
+ |
unguard(); |
370 |
|
/* load new piece into buffer */ |
371 |
< |
for (y = 0; y < vr; y++) |
371 |
> |
for (y = 0; y < vr; y++) { |
372 |
> |
guard_io(); |
373 |
|
if (freadcolrs(pbuf+y*hr, hr, fromrp) < 0) { |
374 |
|
fprintf(stderr, "%s: read error from %s\n", |
375 |
|
progname, rpargv[0]); |
376 |
|
exit(cleanup(1)); |
377 |
|
} |
378 |
+ |
unguard(); |
379 |
+ |
} |
380 |
|
#if MAXFORK |
381 |
|
/* fork so we don't slow rpict down */ |
382 |
|
if ((pid = fork()) > 0) { |