Created
November 22, 2013 21:20
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use 5.008001; | |
use strict; | |
use warnings; | |
use Test::More 0.96; | |
use File::Spec; | |
use Cwd; | |
use lib 't/lib'; | |
use TestUtils qw/exception/; | |
use Fcntl ':flock'; | |
use Path::Tiny; | |
my $IS_BSD = $^O =~ /bsd$/; | |
if ($IS_BSD) { | |
# is temp partition lockable? | |
my $file = Path::Tiny->tempfile; | |
open my $fh, ">>", $file; | |
flock $fh, LOCK_EX | |
or plan skip_all => "Can't lock tempfiles on this OS/filesystem"; | |
} | |
subtest 'write locks blocks read lock' => sub { | |
my $file = Path::Tiny->tempfile; | |
ok $file, "Got a tempfile"; | |
my $fh = $file->openw( { locked => 1 } ); | |
ok $fh, "Opened file for writing with lock"; | |
$fh->autoflush(1); | |
print {$fh} "hello"; | |
# check if a different process can get a lock; use RW mode for AIX | |
my $rc = system( $^X, '-e', <<"HERE"); | |
use strict; | |
use warnings; | |
use Fcntl ':flock'; | |
open my \$fh, "+<", "$file"; | |
exit flock( \$fh, LOCK_SH|LOCK_NB ); | |
HERE | |
isnt( $rc, -1, "ran process to try to get lock" ); | |
is( $rc >> 8, 0, "process failed to get lock" ); | |
}; | |
done_testing; |
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