8 BEGIN {use_ok( "File::Temp" ); }
10 # see if we have O_EXLOCK
11 eval { &Fcntl::O_EXLOCK; };
13 plan skip_all => 'Do not seem to have O_EXLOCK';
18 # Get a tempfile with O_EXLOCK
19 my $fh = new File::Temp();
20 ok( -e "$fh", "temp file is present" );
22 # try to open it with a lock
23 my $flags = O_CREAT | O_RDWR | O_EXLOCK;
28 local $SIG{ALRM} = sub { die "alarm\n" }; # NB: \n required
30 $status = sysopen(my $newfh, "$fh", $flags, 0600);
34 die unless $@ eq "alarm\n"; # propagate unexpected errors
37 ok( !$status, "File $fh is locked" );
39 # Now get a tempfile with locking disabled
40 $fh = new File::Temp( EXLOCK => 0 );
43 local $SIG{ALRM} = sub { die "alarm\n" }; # NB: \n required
45 $status = sysopen(my $newfh, "$fh", $flags, 0600);
49 die unless $@ eq "alarm\n"; # propagate unexpected errors
52 ok( $status, "File $fh is not locked");