37 |
|
return(0); |
38 |
|
if (pipe(p0) < 0 || pipe(p1) < 0) |
39 |
|
return(-1); |
40 |
< |
if ((pd->pid = fork()) == 0) { /* if child... */ |
40 |
> |
#ifdef BSD |
41 |
> |
if (compath != NULL) |
42 |
> |
pd->pid = vfork(); /* more efficient with exec() */ |
43 |
> |
else |
44 |
> |
#endif |
45 |
> |
pd->pid = fork(); |
46 |
> |
if (pd->pid == 0) { /* if child... */ |
47 |
|
close(p0[1]); |
48 |
|
close(p1[0]); |
49 |
|
if (p0[0] != 0) { /* connect p0 to stdin */ |
94 |
|
close(pd[i].w); |
95 |
|
close(pd[i].r); |
96 |
|
pd[i].running = 0; |
97 |
< |
} |
97 |
> |
} else |
98 |
> |
togo -= (pd[i].pid < 0); |
99 |
|
if (nproc == 1) { /* await specific process? */ |
100 |
|
if (waitpid(pd->pid, &status, 0) != pd->pid) |
101 |
|
return(-1); |