1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#!/usr/bin/perl
use lib qw(. ..);
use Memoize 0.45 qw(memoize unmemoize);
use Fcntl;
# use Memoize::NDBM_File;
# $Memoize::NDBM_File::Verbose = 0;
sub i {
$_[0];
}
sub c119 { 119 }
sub c7 { 7 }
sub c43 { 43 }
sub c23 { 23 }
sub c5 { 5 }
sub n {
$_[0]+1;
}
eval {require Memoize::NDBM_File};
if ($@) {
print "1..0\n";
exit 0;
}
print "1..4\n";
$file = "md$$";
1 while unlink $file, "$file.dir", "$file.pag";
tryout('Memoize::NDBM_File', $file, 1); # Test 1..4
1 while unlink $file, "$file.dir", "$file.pag";
sub tryout {
my ($tiepack, $file, $testno) = @_;
tie my %cache => $tiepack, $file, O_RDWR | O_CREAT, 0666
or die $!;
memoize 'c5',
SCALAR_CACHE => [HASH => \%cache],
LIST_CACHE => 'FAULT'
;
my $t1 = c5();
my $t2 = c5();
print (($t1 == 5) ? "ok $testno\n" : "not ok $testno\n");
$testno++;
print (($t2 == 5) ? "ok $testno\n" : "not ok $testno\n");
unmemoize 'c5';
# Now something tricky---we'll memoize c23 with the wrong table that
# has the 5 already cached.
memoize 'c23',
SCALAR_CACHE => [HASH => \%cache],
LIST_CACHE => 'FAULT'
;
my $t3 = c23();
my $t4 = c23();
$testno++;
print (($t3 == 5) ? "ok $testno\n" : "not ok $testno\n");
$testno++;
print (($t4 == 5) ? "ok $testno\n" : "not ok $testno\n");
unmemoize 'c23';
}
|
