#!./perl
-# $RCSfile: pipe.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:31 $
-
BEGIN {
chdir 't' if -d 't';
- unshift @INC, '../lib';
+ @INC = '../lib';
require Config; import Config;
unless ($Config{'d_fork'}) {
- print "1..0\n";
+ print "1..0 # Skip: no fork\n";
exit 0;
}
}
$| = 1;
-print "1..14\n";
+print "1..16\n";
# External program 'tr' assumed.
open(PIPE, "|-") || (exec 'tr', 'YX', 'ko');
exec 'echo', 'not ok 6';
}
}
+wait; # Collect from $pid
pipe(READER,WRITER) || die "Can't open pipe";
close READER;
else {
local $SIG{PIPE} = 'IGNORE';
open NIL, '|true' or die "open failed: $!";
- sleep 2;
- print NIL 'foo' or die "print failed: $!";
- if (close NIL) {
- print "not ok 9\n";
+ sleep 5;
+ if (print NIL 'foo') {
+ # If print was allowed we had better get an error on close
+ if (close NIL) {
+ print "not ok 9\n";
+ }
+ else {
+ print "ok 9\n";
+ }
}
else {
- print "ok 9\n";
+ # If print failed, the close should be clean
+ if (close NIL) {
+ print "ok 9\n";
+ }
+ else {
+ print "not ok 9\n";
+ }
}
}
print "ok 10\n";
}
-# check that status for the correct process is collected
-wait; # Collect from $pid
-my $zombie = fork or exit 37;
-my $pipe = open *FH, "sleep 2;exit 13|" or die "Open: $!\n";
-$SIG{ALRM} = sub { return };
-alarm(1);
-my $close = close FH;
-if ($? == 13*256 && ! length $close && ! $!) {
- print "ok 11\n";
-} else {
- print "not ok 11\n# close $close\$?=$? \$!=", $!+0, ":$!\n";
-};
-my $wait = wait;
-if ($? == 37*256 && $wait == $zombie && ! $!) {
- print "ok 12\n";
+if ($^O eq 'mpeix') {
+ print "ok 11 # skipped\n";
+ print "ok 12 # skipped\n";
} else {
- print "not ok 12\n# pid=$wait first=$pid pipe=$pipe zombie=$zombie me=$$ \$?=$? \$!=", $!+0, ":$!\n";
+ # check that status for the correct process is collected
+ my $zombie = fork or exit 37;
+ my $pipe = open *FH, "sleep 2;exit 13|" or die "Open: $!\n";
+ $SIG{ALRM} = sub { return };
+ alarm(1);
+ my $close = close FH;
+ if ($? == 13*256 && ! length $close && ! $!) {
+ print "ok 11\n";
+ } else {
+ print "not ok 11\n# close $close\$?=$? \$!=", $!+0, ":$!\n";
+ };
+ my $wait = wait;
+ if ($? == 37*256 && $wait == $zombie && ! $!) {
+ print "ok 12\n";
+ } else {
+ print "not ok 12\n# pid=$wait first=$pid pipe=$pipe zombie=$zombie me=$$ \$?=$? \$!=", $!+0, ":$!\n";
+ }
}
# Test new semantics for missing command in piped open
print (((open P, "| " ) ? "not " : ""), "ok 13\n");
print (((open P, " |" ) ? "not " : ""), "ok 14\n");
}
+
+# check that status is unaffected by implicit close
+{
+ local(*NIL);
+ open NIL, '|exit 23;' or die "fork failed: $!";
+ $? = 42;
+ # NIL implicitly closed here
+}
+if ($? != 42) {
+ print "# status $?, expected 42\nnot ";
+}
+print "ok 15\n";
+$? = 0;
+
+# check that child is reaped if the piped program can't be executed
+{
+ open NIL, '/no_such_process |';
+ close NIL;
+
+ my $child = 0;
+ eval {
+ local $SIG{ALRM} = sub { die; };
+ alarm 2;
+ $child = wait;
+ alarm 0;
+ };
+
+ print "not " if $child != -1;
+ print "ok 16\n";
+}