BEGIN {
chdir 't' if -d 't';
- unshift @INC, '../lib';
+ @INC = '../lib';
require Config; import Config;
- unless ($Config{'d_fork'} || ($^O eq 'MSWin32' && $Config{'useithreads'})) {
+ unless ($Config{'d_fork'}
+ or ($^O eq 'MSWin32' and $Config{useithreads}
+ and $Config{ccflags} =~ /-DPERL_IMPLICIT_SYS/
+# and !defined $Config{'useperlio'}
+ ))
+ {
print "1..0 # Skip: no fork\n";
exit 0;
}
$ENV{PERL5LIB} = "../lib";
}
+if ($^O eq 'mpeix') {
+ print "1..0 # Skip: fork/status problems on MPE/iX\n";
+ exit 0;
+}
+
$|=1;
undef $/;
$tmpfile = "forktmp000";
1 while -f ++$tmpfile;
-END { unlink $tmpfile if $tmpfile; }
+END { close TEST; unlink $tmpfile if $tmpfile; }
$CAT = (($^O eq 'MSWin32') ? '.\perl -e "print <>"' : 'cat');
# bison says 'parse error' instead of 'syntax error',
# various yaccs may or may not capitalize 'syntax'.
$results =~ s/^(syntax|parse) error/syntax error/mig;
+ $results =~ s/^\n*Process terminated by SIG\w+\n?//mg
+ if $^O eq 'os2';
my @results = sort split /\n/, $results;
if ( "@results" ne "@expected" ) {
print STDERR "PROG: $switch\n$prog\n";
[1] -2- -3-
-1- -2- -3-
########
+$| = 1;
+foreach my $c (1,2,3) {
+ if (fork) {
+ print "parent $c\n";
+ }
+ else {
+ print "child $c\n";
+ exit;
+ }
+}
+while (wait() != -1) { print "waited\n" }
+EXPECT
+child 1
+child 2
+child 3
+parent 1
+parent 2
+parent 3
+waited
+waited
+waited
+########
use Config;
$| = 1;
$\ = "\n";
#print "outer\n"
EXPECT
inner
+########
+sub pipe_to_fork ($$) {
+ my $parent = shift;
+ my $child = shift;
+ pipe($child, $parent) or die;
+ my $pid = fork();
+ die "fork() failed: $!" unless defined $pid;
+ close($pid ? $child : $parent);
+ $pid;
+}
+
+if (pipe_to_fork('PARENT','CHILD')) {
+ # parent
+ print PARENT "pipe_to_fork\n";
+ close PARENT;
+}
+else {
+ # child
+ while (<CHILD>) { print; }
+ close CHILD;
+ exit;
+}
+
+sub pipe_from_fork ($$) {
+ my $parent = shift;
+ my $child = shift;
+ pipe($parent, $child) or die;
+ my $pid = fork();
+ die "fork() failed: $!" unless defined $pid;
+ close($pid ? $child : $parent);
+ $pid;
+}
+
+if (pipe_from_fork('PARENT','CHILD')) {
+ # parent
+ while (<PARENT>) { print; }
+ close PARENT;
+}
+else {
+ # child
+ print CHILD "pipe_from_fork\n";
+ close CHILD;
+ exit;
+}
+EXPECT
+pipe_from_fork
+pipe_to_fork
+########
+$|=1;
+if ($pid = fork()) {
+ print "forked first kid\n";
+ print "waitpid() returned ok\n" if waitpid($pid,0) == $pid;
+}
+else {
+ print "first child\n";
+ exit(0);
+}
+if ($pid = fork()) {
+ print "forked second kid\n";
+ print "wait() returned ok\n" if wait() == $pid;
+}
+else {
+ print "second child\n";
+ exit(0);
+}
+EXPECT
+forked first kid
+first child
+waitpid() returned ok
+forked second kid
+second child
+wait() returned ok