1 |
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/* Copyright (c) 1993 Regents of the University of California */ |
2 |
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|
1 |
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#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
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#endif |
6 |
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|
4 |
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/* |
5 |
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* Generate sections of a picture. |
6 |
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*/ |
7 |
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|
8 |
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|
9 |
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#include <stdio.h> |
10 |
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#include <signal.h> |
11 |
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#include <sys/types.h> |
12 |
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|
13 |
+ |
#include "platform.h" |
14 |
+ |
#ifndef NON_POSIX /* XXX need abstraction for process management */ |
15 |
+ |
#include <sys/wait.h> |
16 |
+ |
#endif |
17 |
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|
18 |
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#include "standard.h" |
19 |
+ |
#include "color.h" |
20 |
+ |
#include "view.h" |
21 |
+ |
#include "rtprocess.h" |
22 |
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|
23 |
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#ifndef F_SETLKW |
24 |
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|
25 |
< |
main(argc, argv) |
26 |
< |
int argc; |
27 |
< |
char *argv[]; |
25 |
> |
int |
26 |
> |
main( |
27 |
> |
int argc, |
28 |
> |
char *argv[] |
29 |
> |
) |
30 |
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{ |
31 |
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fprintf(stderr, "%s: no NFS lock manager on this machine\n", argv[0]); |
32 |
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exit(1); |
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|
35 |
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#else |
36 |
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|
25 |
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#include <signal.h> |
26 |
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#include "color.h" |
27 |
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#include "view.h" |
28 |
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#include "resolu.h" |
29 |
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|
37 |
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#ifndef NFS |
38 |
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#define NFS 1 |
39 |
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#endif |
40 |
< |
/* set the following to 0 to forgo forking */ |
40 |
> |
|
41 |
> |
#ifndef RHAS_FORK_EXEC |
42 |
> |
#undef MAXFORK |
43 |
> |
#define MAXFORK 0 |
44 |
> |
#endif |
45 |
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#ifndef MAXFORK |
46 |
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#if NFS |
47 |
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#define MAXFORK 3 /* allotment of duped processes */ |
50 |
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#endif |
51 |
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#endif |
52 |
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/* protection from SYSV signals(!) */ |
53 |
< |
#if defined(sgi) || defined(hpux) |
53 |
> |
#if defined(sgi) |
54 |
|
#define guard_io() sighold(SIGALRM) |
55 |
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#define unguard() sigrelse(SIGALRM) |
56 |
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#endif |
57 |
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#ifndef guard_io |
58 |
< |
#define guard_io() 0 |
59 |
< |
#define unguard() 0 |
58 |
> |
#define guard_io() |
59 |
> |
#define unguard() |
60 |
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#endif |
61 |
+ |
|
62 |
+ |
extern char *strerror(); |
63 |
+ |
|
64 |
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/* rpict command */ |
65 |
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char *rpargv[128] = {"rpict", "-S", "1"}; |
66 |
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int rpargc = 3; |
53 |
– |
int rpd[3]; |
67 |
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FILE *torp, *fromrp; |
68 |
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COLR *pbuf; |
69 |
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/* our view parameters */ |
82 |
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|
83 |
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char *progname; |
84 |
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int verbose = 0; |
85 |
+ |
int nowarn = 0; |
86 |
+ |
unsigned timelim = 0; |
87 |
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int rvrlim = -1; |
88 |
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|
74 |
– |
extern long lseek(), ftell(); |
75 |
– |
|
89 |
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int gotalrm = 0; |
90 |
< |
int onalrm() { gotalrm++; } |
90 |
> |
void onalrm(int i) { gotalrm++; } |
91 |
|
|
92 |
+ |
static void dolock(int fd, int ltyp); |
93 |
+ |
static void init(int ac, char **av); |
94 |
+ |
static int nextpiece(int *xp, int *yp); |
95 |
+ |
static int rvrpiece(int *xp, int *yp); |
96 |
+ |
static int cleanup(int rstat); |
97 |
+ |
static void rpiece(void); |
98 |
+ |
static int putpiece(int xpos, int ypos); |
99 |
+ |
static void filerr(char *t); |
100 |
|
|
101 |
< |
main(argc, argv) |
102 |
< |
int argc; |
103 |
< |
char *argv[]; |
101 |
> |
|
102 |
> |
int |
103 |
> |
main( |
104 |
> |
int argc, |
105 |
> |
char *argv[] |
106 |
> |
) |
107 |
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{ |
108 |
< |
register int i, rval; |
108 |
> |
int i, rval; |
109 |
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|
110 |
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progname = argv[0]; |
111 |
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for (i = 1; i < argc; i++) { |
112 |
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/* expand arguments */ |
113 |
< |
while (rval = expandarg(&argc, &argv, i)) |
114 |
< |
if (rval < 0) { |
115 |
< |
fprintf(stderr, "%s: cannot expand '%s'", |
116 |
< |
argv[0], argv[i]); |
117 |
< |
exit(1); |
118 |
< |
} |
113 |
> |
while ((rval = expandarg(&argc, &argv, i)) > 0) |
114 |
> |
; |
115 |
> |
if (rval < 0) { |
116 |
> |
fprintf(stderr, "%s: cannot expand '%s'\n", |
117 |
> |
argv[0], argv[i]); |
118 |
> |
exit(1); |
119 |
> |
} |
120 |
|
if (argv[i][0] == '-') |
121 |
|
switch (argv[i][1]) { |
122 |
+ |
case 'w': |
123 |
+ |
if (!argv[i][2]) |
124 |
+ |
nowarn = !nowarn; |
125 |
+ |
else if (argv[i][2] == '+') |
126 |
+ |
nowarn = 0; |
127 |
+ |
else if (argv[i][2] == '-') |
128 |
+ |
nowarn = 1; |
129 |
+ |
break; |
130 |
|
case 'v': |
131 |
|
switch (argv[i][2]) { |
132 |
|
case '\0': /* verbose option */ |
149 |
|
} |
150 |
|
break; |
151 |
|
case 'p': /* pixel aspect ratio? */ |
152 |
+ |
if (argv[i][2] == 'm') { |
153 |
+ |
fprintf(stderr, "%s: -pm unsupported\n", |
154 |
+ |
argv[0]); |
155 |
+ |
++i; |
156 |
+ |
continue; |
157 |
+ |
} |
158 |
|
if (argv[i][2] != 'a' || argv[i][3]) |
159 |
|
break; |
160 |
< |
pixaspect = atof(argv[i+1]); |
160 |
> |
pixaspect = atof(argv[++i]); |
161 |
|
continue; |
162 |
+ |
case 'T': /* time limit (hours) */ |
163 |
+ |
if (argv[i][2]) |
164 |
+ |
break; |
165 |
+ |
timelim = atof(argv[++i])*3600. + .5; |
166 |
+ |
continue; |
167 |
|
case 'x': /* overall x resolution */ |
168 |
|
if (argv[i][2]) |
169 |
|
break; |
192 |
|
case 'F': /* syncronization file */ |
193 |
|
if (argv[i][2]) |
194 |
|
break; |
195 |
< |
if ((syncfp = fopen(argv[++i],"r+")) == NULL) { |
195 |
> |
if ((syncfp = |
196 |
> |
fdopen(open(argv[++i],O_RDWR|O_CREAT,0666),"r+")) == NULL) { |
197 |
|
fprintf(stderr, "%s: cannot open\n", |
198 |
|
argv[i]); |
199 |
|
exit(1); |
208 |
|
break; |
209 |
|
outfile = argv[++i]; |
210 |
|
continue; |
211 |
< |
} else if (i >= argc-1) |
212 |
< |
break; |
211 |
> |
} |
212 |
> |
else if (i >= argc-1) |
213 |
> |
break; |
214 |
|
rpargv[rpargc++] = argv[i]; |
215 |
|
} |
216 |
|
if (i >= argc) { |
227 |
|
} |
228 |
|
|
229 |
|
|
230 |
< |
dolock(fd, ltyp) /* lock or unlock a file */ |
231 |
< |
int fd; |
232 |
< |
int ltyp; |
230 |
> |
static void |
231 |
> |
dolock( /* lock or unlock a file */ |
232 |
> |
int fd, |
233 |
> |
int ltyp |
234 |
> |
) |
235 |
|
{ |
236 |
|
static struct flock fls; /* static so initialized to zeroes */ |
237 |
|
|
238 |
|
fls.l_type = ltyp; |
239 |
|
if (fcntl(fd, F_SETLKW, &fls) < 0) { |
240 |
< |
fprintf(stderr, "%s: cannot lock/unlock file\n", progname); |
241 |
< |
exit(1); |
240 |
> |
fprintf(stderr, "%s: cannot lock/unlock file: %s\n", |
241 |
> |
progname, strerror(errno)); |
242 |
> |
_exit(1); |
243 |
|
} |
244 |
|
} |
245 |
|
|
246 |
|
|
247 |
< |
init(ac, av) /* set up output file and start rpict */ |
248 |
< |
int ac; |
249 |
< |
char **av; |
247 |
> |
static void |
248 |
> |
init( /* set up output file and start rpict */ |
249 |
> |
int ac, |
250 |
> |
char **av |
251 |
> |
) |
252 |
|
{ |
253 |
|
static char hrbuf[16], vrbuf[16]; |
254 |
|
extern char VersionID[]; |
255 |
|
char *err; |
256 |
|
FILE *fp; |
257 |
|
int hr, vr; |
258 |
+ |
SUBPROC rpd; /* since we don't close_process(), this can be local */ |
259 |
|
/* set up view */ |
260 |
|
if ((err = setview(&ourview)) != NULL) { |
261 |
|
fprintf(stderr, "%s: %s\n", progname, err); |
267 |
|
sflock(F_UNLCK); |
268 |
|
} |
269 |
|
/* compute piece size */ |
270 |
+ |
hr = hres; vr = vres; |
271 |
+ |
if (pixaspect > FTINY) |
272 |
+ |
normaspect(viewaspect(&ourview), &pixaspect, &hr, &vr); |
273 |
|
hres /= hmult; |
274 |
|
vres /= vmult; |
275 |
+ |
if (hres <= 0 || vres <= 0) { |
276 |
+ |
fprintf(stderr, "%s: illegal resolution/subdivision\n", progname); |
277 |
+ |
exit(1); |
278 |
+ |
} |
279 |
|
normaspect(viewaspect(&ourview)*hmult/vmult, &pixaspect, &hres, &vres); |
280 |
+ |
if (!nowarn && (hr != hres*hmult) | (vr != vres*vmult)) |
281 |
+ |
fprintf(stderr, |
282 |
+ |
"%s: warning - changed resolution from %dx%d to %dx%d\n", |
283 |
+ |
progname, hr, vr, hres*hmult, vres*vmult); |
284 |
|
sprintf(hrbuf, "%d", hres); |
285 |
|
rpargv[rpargc++] = "-x"; rpargv[rpargc++] = hrbuf; |
286 |
|
sprintf(vrbuf, "%d", vres); |
293 |
|
dolock(outfd, F_WRLCK); |
294 |
|
if ((fp = fdopen(dup(outfd), "w")) == NULL) |
295 |
|
goto filerr; |
296 |
< |
printargs(ac, av, fp); /* write header */ |
296 |
> |
newheader("RADIANCE", fp); /* create header */ |
297 |
> |
printargs(ac, av, fp); |
298 |
|
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
299 |
|
fputs(VIEWSTR, fp); |
300 |
|
fprintview(&ourview, fp); |
301 |
|
putc('\n', fp); |
302 |
+ |
fputnow(fp); |
303 |
|
if (pixaspect < .99 || pixaspect > 1.01) |
304 |
|
fputaspect(pixaspect, fp); |
305 |
|
fputformat(COLRFMT, fp); |
326 |
|
goto filerr; |
327 |
|
dolock(outfd, F_UNLCK); |
328 |
|
/* start rpict process */ |
329 |
< |
if (open_process(rpd, rpargv) <= 0) { |
329 |
> |
rpd = sp_inactive; |
330 |
> |
if (open_process(&rpd, rpargv) <= 0) { |
331 |
|
fprintf(stderr, "%s: cannot start %s\n", progname, rpargv[0]); |
332 |
|
exit(1); |
333 |
|
} |
334 |
< |
if ((fromrp = fdopen(rpd[0], "r")) == NULL || |
335 |
< |
(torp = fdopen(rpd[1], "w")) == NULL) { |
334 |
> |
if ((fromrp = fdopen(rpd.r, "r")) == NULL || |
335 |
> |
(torp = fdopen(rpd.w, "w")) == NULL) { |
336 |
|
fprintf(stderr, "%s: cannot open stream to %s\n", |
337 |
|
progname, rpargv[0]); |
338 |
|
exit(1); |
342 |
|
exit(1); |
343 |
|
} |
344 |
|
signal(SIGALRM, onalrm); |
345 |
+ |
if (timelim) |
346 |
+ |
alarm(timelim); |
347 |
|
return; |
348 |
|
filerr: |
349 |
|
fprintf(stderr, "%s: i/o error on file \"%s\"\n", progname, outfile); |
351 |
|
} |
352 |
|
|
353 |
|
|
354 |
< |
int |
355 |
< |
nextpiece(xp, yp) /* get next piece assignment */ |
356 |
< |
int *xp, *yp; |
354 |
> |
static int |
355 |
> |
nextpiece( /* get next piece assignment */ |
356 |
> |
int *xp, |
357 |
> |
int *yp |
358 |
> |
) |
359 |
|
{ |
360 |
|
if (gotalrm) /* someone wants us to quit */ |
361 |
|
return(0); |
391 |
|
sflock(F_UNLCK); /* release sync file */ |
392 |
|
return(1); |
393 |
|
} |
394 |
< |
if (scanf("%d %d", xp, yp) == 2) /* use stdin */ |
325 |
< |
return(1); |
326 |
< |
fprintf(stderr, "%s: input format error\n", progname); |
327 |
< |
exit(cleanup(1)); |
394 |
> |
return(scanf("%d %d", xp, yp) == 2); /* use stdin */ |
395 |
|
} |
396 |
|
|
397 |
|
|
398 |
< |
int |
399 |
< |
rvrpiece(xp, yp) /* check for recoverable pieces */ |
400 |
< |
register int *xp, *yp; |
398 |
> |
static int |
399 |
> |
rvrpiece( /* check for recoverable pieces */ |
400 |
> |
int *xp, |
401 |
> |
int *yp |
402 |
> |
) |
403 |
|
{ |
404 |
|
static char *pdone = NULL; /* which pieces are done */ |
405 |
|
static long readpos = -1; /* how far we've read */ |
406 |
< |
register int i; |
406 |
> |
int px, py, i; |
407 |
|
/* |
408 |
|
* This routine is called by nextpiece() with an |
409 |
|
* exclusive lock on syncfp and the file pointer at the |
412 |
|
if (rvrlim < 0) |
413 |
|
return(0); /* only check if asked */ |
414 |
|
if (pdone == NULL) /* first call */ |
415 |
< |
pdone = calloc(hmult*vmult, sizeof(char)); |
415 |
> |
pdone = (char *)calloc(hmult*vmult, sizeof(char)); |
416 |
> |
if (pdone == NULL) { |
417 |
> |
fprintf(stderr, "%s: out of memory\n", progname); |
418 |
> |
exit(1); |
419 |
> |
} |
420 |
|
if (readpos != -1) /* mark what's been done */ |
421 |
|
fseek(syncfp, readpos, 0); |
422 |
< |
while (fscanf(syncfp, "%d %d", xp, yp) == 2) |
423 |
< |
pdone[*xp*vmult+*yp] = 1; |
422 |
> |
while (fscanf(syncfp, "%d %d", &px, &py) == 2) |
423 |
> |
pdone[px*vmult+py] = 1; |
424 |
|
if (!feof(syncfp)) { |
425 |
|
fprintf(stderr, "%s: format error in sync file\n", progname); |
426 |
|
exit(1); |
441 |
|
} |
442 |
|
|
443 |
|
|
444 |
< |
int |
445 |
< |
cleanup(rstat) /* close rpict process and clean up */ |
446 |
< |
int rstat; |
444 |
> |
static int |
445 |
> |
cleanup( /* close rpict process and clean up */ |
446 |
> |
int rstat |
447 |
> |
) |
448 |
|
{ |
449 |
|
int status; |
450 |
|
|
458 |
|
} |
459 |
|
|
460 |
|
|
461 |
< |
rpiece() /* render picture piece by piece */ |
461 |
> |
static void |
462 |
> |
rpiece(void) /* render picture piece by piece */ |
463 |
|
{ |
464 |
|
VIEW pview; |
465 |
|
int xorg, yorg; |
466 |
|
/* compute view parameters */ |
467 |
< |
copystruct(&pview, &ourview); |
467 |
> |
pview = ourview; |
468 |
|
switch (ourview.type) { |
469 |
|
case VT_PER: |
470 |
< |
pview.horiz = 2.*180./PI*atan( |
471 |
< |
tan(PI/180./2.*ourview.horiz)/hmult ); |
472 |
< |
pview.vert = 2.*180./PI*atan( |
473 |
< |
tan(PI/180./2.*ourview.vert)/vmult ); |
470 |
> |
pview.horiz = (2.*180./PI)*atan( |
471 |
> |
tan((PI/180./2.)*ourview.horiz)/hmult ); |
472 |
> |
pview.vert = (2.*180./PI)*atan( |
473 |
> |
tan((PI/180./2.)*ourview.vert)/vmult ); |
474 |
|
break; |
475 |
|
case VT_PAR: |
476 |
|
case VT_ANG: |
477 |
|
pview.horiz = ourview.horiz / hmult; |
478 |
|
pview.vert = ourview.vert / vmult; |
479 |
|
break; |
480 |
+ |
case VT_CYL: |
481 |
+ |
pview.horiz = ourview.horiz / hmult; |
482 |
+ |
pview.vert = (2.*180./PI)*atan( |
483 |
+ |
tan((PI/180./2.)*ourview.vert)/vmult ); |
484 |
+ |
break; |
485 |
|
case VT_HEM: |
486 |
< |
pview.horiz = 2.*180./PI*asin( |
487 |
< |
sin(PI/180./2.*ourview.horiz)/hmult ); |
488 |
< |
pview.vert = 2.*180./PI*asin( |
489 |
< |
sin(PI/180./2.*ourview.vert)/vmult ); |
486 |
> |
pview.horiz = (2.*180./PI)*asin( |
487 |
> |
sin((PI/180./2.)*ourview.horiz)/hmult ); |
488 |
> |
pview.vert = (2.*180./PI)*asin( |
489 |
> |
sin((PI/180./2.)*ourview.vert)/vmult ); |
490 |
|
break; |
491 |
+ |
case VT_PLS: |
492 |
+ |
pview.horiz = sin((PI/180./2.)*ourview.horiz) / |
493 |
+ |
(1.0 + cos((PI/180./2.)*ourview.horiz)) / hmult; |
494 |
+ |
pview.horiz *= pview.horiz; |
495 |
+ |
pview.horiz = (2.*180./PI)*acos((1. - pview.horiz) / |
496 |
+ |
(1. + pview.horiz)); |
497 |
+ |
pview.vert = sin((PI/180./2.)*ourview.vert) / |
498 |
+ |
(1.0 + cos((PI/180./2.)*ourview.vert)) / vmult; |
499 |
+ |
pview.vert *= pview.vert; |
500 |
+ |
pview.vert = (2.*180./PI)*acos((1. - pview.vert) / |
501 |
+ |
(1. + pview.vert)); |
502 |
+ |
break; |
503 |
|
default: |
504 |
|
fprintf(stderr, "%s: unknown view type '-vt%c'\n", |
505 |
|
progname, ourview.type); |
507 |
|
} |
508 |
|
/* render each piece */ |
509 |
|
while (nextpiece(&xorg, &yorg)) { |
510 |
< |
pview.hoff = ourview.hoff + xorg - 0.5*(hmult-1); |
511 |
< |
pview.voff = ourview.voff + yorg - 0.5*(vmult-1); |
510 |
> |
pview.hoff = ourview.hoff*hmult + xorg - 0.5*(hmult-1); |
511 |
> |
pview.voff = ourview.voff*vmult + yorg - 0.5*(vmult-1); |
512 |
|
fputs(VIEWSTR, torp); |
513 |
|
fprintview(&pview, torp); |
514 |
|
putc('\n', torp); |
518 |
|
} |
519 |
|
|
520 |
|
|
521 |
< |
int |
522 |
< |
putpiece(xpos, ypos) /* get next piece from rpict */ |
523 |
< |
int xpos, ypos; |
521 |
> |
static int |
522 |
> |
putpiece( /* get next piece from rpict */ |
523 |
> |
int xpos, |
524 |
> |
int ypos |
525 |
> |
) |
526 |
|
{ |
527 |
|
struct flock fls; |
528 |
|
int pid, status; |
529 |
|
int hr, vr; |
530 |
< |
register int y; |
530 |
> |
int y; |
531 |
|
/* check bounds */ |
532 |
< |
if (xpos < 0 | ypos < 0 | xpos >= hmult | ypos >= vmult) { |
532 |
> |
if ((xpos < 0) | (ypos < 0) | (xpos >= hmult) | (ypos >= vmult)) { |
533 |
|
fprintf(stderr, "%s: requested piece (%d,%d) out of range\n", |
534 |
|
progname, xpos, ypos); |
535 |
|
exit(cleanup(1)); |
537 |
|
/* check header from rpict */ |
538 |
|
guard_io(); |
539 |
|
getheader(fromrp, NULL, NULL); |
540 |
< |
if (!fscnresolu(&hr, &vr, fromrp) || hr != hres | vr != vres) { |
540 |
> |
if (!fscnresolu(&hr, &vr, fromrp) || (hr != hres) | (vr != vres)) { |
541 |
|
fprintf(stderr, "%s: resolution mismatch from %s\n", |
542 |
|
progname, rpargv[0]); |
543 |
|
exit(cleanup(1)); |
578 |
|
/* lock file section so NFS doesn't mess up */ |
579 |
|
fls.l_whence = 0; |
580 |
|
fls.l_type = F_WRLCK; |
581 |
< |
fcntl(outfd, F_SETLKW, &fls); |
581 |
> |
#if 0 |
582 |
> |
if (fcntl(outfd, F_SETLKW, &fls) < 0) |
583 |
> |
filerr("lock"); |
584 |
> |
#else |
585 |
> |
dolock(outfd, F_WRLCK); |
586 |
|
#endif |
587 |
+ |
#endif |
588 |
|
/* write new piece to file */ |
589 |
< |
if (lseek(outfd, fls.l_start, 0) == -1) |
590 |
< |
goto seekerr; |
589 |
> |
if (lseek(outfd, (off_t)fls.l_start, SEEK_SET) < 0) |
590 |
> |
filerr("seek"); |
591 |
|
if (hmult == 1) { |
592 |
|
if (writebuf(outfd, (char *)pbuf, |
593 |
|
vr*hr*sizeof(COLR)) != vr*hr*sizeof(COLR)) |
594 |
< |
goto writerr; |
594 |
> |
filerr("write"); |
595 |
|
} else |
596 |
|
for (y = 0; y < vr; y++) { |
597 |
|
if (writebuf(outfd, (char *)(pbuf+y*hr), |
598 |
|
hr*sizeof(COLR)) != hr*sizeof(COLR)) |
599 |
< |
goto writerr; |
599 |
> |
filerr("write"); |
600 |
|
if (y < vr-1 && lseek(outfd, |
601 |
< |
(long)(hmult-1)*hr*sizeof(COLR), |
602 |
< |
1) == -1) |
603 |
< |
goto seekerr; |
601 |
> |
(off_t)(hmult-1)*hr*sizeof(COLR), |
602 |
> |
SEEK_CUR) < 0) |
603 |
> |
filerr("seek"); |
604 |
|
} |
605 |
|
#if NFS |
606 |
|
fls.l_type = F_UNLCK; /* release lock */ |
607 |
< |
fcntl(outfd, F_SETLKW, &fls); |
607 |
> |
#if 0 |
608 |
> |
if (fcntl(outfd, F_SETLKW, &fls) < 0) |
609 |
> |
filerr("lock"); |
610 |
> |
#else |
611 |
> |
dolock(outfd, F_UNLCK); |
612 |
|
#endif |
613 |
+ |
#endif |
614 |
+ |
if (verbose) { /* notify caller */ |
615 |
+ |
printf("%d %d done\n", xpos, ypos); |
616 |
+ |
fflush(stdout); |
617 |
+ |
} |
618 |
|
if (syncfp != NULL) { /* record what's been done */ |
619 |
|
sflock(F_WRLCK); |
620 |
|
fseek(syncfp, 0L, 2); /* append index */ |
623 |
|
/*** Unlock not necessary, since |
624 |
|
sflock(F_UNLCK); _exit() or nextpiece() is next ***/ |
625 |
|
} |
518 |
– |
if (verbose) { /* notify caller */ |
519 |
– |
printf("%d %d done\n", xpos, ypos); |
520 |
– |
fflush(stdout); |
521 |
– |
} |
626 |
|
if (pid == -1) /* didn't fork or fork failed */ |
627 |
|
return(0); |
628 |
|
_exit(0); /* else exit child process (releasing locks) */ |
629 |
< |
seekerr: |
630 |
< |
fprintf(stderr, "%s: seek error on file \"%s\"\n", progname, outfile); |
631 |
< |
_exit(1); |
632 |
< |
writerr: |
633 |
< |
fprintf(stderr, "%s: write error on file \"%s\"\n", progname, outfile); |
629 |
> |
} |
630 |
> |
|
631 |
> |
|
632 |
> |
static void |
633 |
> |
filerr( /* report file error and exit */ |
634 |
> |
char *t |
635 |
> |
) |
636 |
> |
{ |
637 |
> |
fprintf(stderr, "%s: %s error on file \"%s\": %s\n", |
638 |
> |
progname, t, outfile, strerror(errno)); |
639 |
|
_exit(1); |
640 |
|
} |
641 |
|
|