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my $err_lock = Cache::Memcached::Semaphore->new( memd => $memd, name => "semaphore" );
ok( !$err_lock, "Cannot lock same semaphore" );
 
# scoping
{
        my $c_lock = Cache::Memcached::Semaphore->new( memd => $memd, name => "c_test" );
        my $s_lock = Cache::Memcached::Semaphore::acquire( memd => $memd, name => "s_test" );
         
        ok( $c_lock, "Inner block constructor acquired" );
        ok( $s_lock, "Inner block sub acquired" );
        ok( !Cache::Memcached::Semaphore->new( memd => $memd, name => "c_test" ), "Inner block constructor locked" );
        ok( !Cache::Memcached::Semaphore::acquire( memd => $memd, name => "s_test" ), "Inner block sub locked" );
}
 
my $c_lock = Cache::Memcached::Semaphore->new( memd => $memd, name => "c_test" );
my $s_lock = Cache::Memcached::Semaphore::acquire( memd => $memd, name => "s_test" );
ok( $c_lock, "Outer block constructor acquired" );
ok( $s_lock, "Outer block sub acquired" );
ok( !Cache::Memcached::Semaphore->new( memd => $memd, name => "c_test" ), "Outer block constructor locked" );
ok( !Cache::Memcached::Semaphore::acquire( memd => $memd, name => "s_test" ), "Outer block sub locked" );
 
# timeout
ok( Cache::Memcached::Semaphore->new( memd => $memd, name => "c_timeout", timeout => 10 ), "Constructor with timeout" );
ok( !Cache::Memcached::Semaphore->new( memd => $memd, name => "c_timeout", timeout => 10 ), "Constructor with timeout locked" );
ok( Cache::Memcached::Semaphore::acquire( memd => $memd, name => "s_timeout", timeout => 10 ), "Sub with timeout" );
ok( !Cache::Memcached::Semaphore::acquire( memd => $memd, name => "s_timeout", timeout => 10 ), "Sub with timeout locked" );
 
ok( Cache::Memcached::Semaphore::wait_acquire( memd => $memd, name => "w_timeout", timeout => 2 ), "Wait lock. Create with timeout" );
ok( Cache::Memcached::Semaphore::wait_acquire( memd => $memd, name => "w_timeout", timeout => 10), "Wait indefinitely. Create with timeout" );
ok( !Cache::Memcached::Semaphore::wait_acquire( memd => $memd, name => "w_timeout", timeout => 10, max_wait => 1), "Wait 1 sec. No acquire" );
 
#require Benchmark;
#my $benchmark = Benchmark::timeit( 1000, sub { Cache::Memcached::Semaphore->new( memd => $memd, name => 'benchmark' ) || die "Couldn't lock" } );     
#diag(Benchmark::timestr($benchmark));