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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
#!perl
use strict;
use warnings;
use utf8;
use Test::More tests => 53;
use Test::Exception;
#use Test::ZeroCopy;
use B;
use Benchmark qw(:hireswallclock);
use Config;
#use Devel::Peek;
#$Devel::Peek::pv_limit = 20;
use File::Temp;
use LMDB_File qw(:flags :cursor_op);
my $dir = File::Temp->newdir('mdbtXXXX', TMPDIR => 1, EXLOCK => 0);
ok(-d $dir, "Created test dir $dir");
my $large1 = '0123456789' x 100_000;
my $val;
{
my $env = LMDB::Env->new($dir, {
mapsize => 100 * 1024 * 1024
});
ok(my $DB = $env->BeginTxn->OpenDB, 'Open unamed');
is($DB->dbi, 1, 'Opened');
is($DB->put('A' => $large1), $large1, 'Put large value');
$DB->Txn->commit;
$DB = LMDB_File->new($env->BeginTxn(MDB_RDONLY), 1);
is($DB->ReadMode, 0, 'In normal read mode');
$DB->get('A', $val);
is(length($val), 1_000_000, '1MB');
is($val, $large1, 'The value is there');
ok(my $inspec = B::svref_2object(\$val), 'Inspected');
ok($inspec->isa('B::PV'), 'Is a PV');
ok($inspec->LEN > 0, 'Perl owned');
#Dump($val);
my $t = timeit(50, sub { $DB->get('A', $val) for (1..1000); });
diag("Normal mode in ", timestr($t));
is($DB->ReadMode(1), 0, 'Previous mode returned');
is($DB->ReadMode, 1, 'In fast read mode');
$DB->get('A', my $fval);
#Dump($fval);
is(length($fval), 1_000_000, '1MB');
is($fval, $large1, 'The value is there');
ok($inspec = B::svref_2object(\$fval), 'Inspected');
ok($inspec->isa('B::PVMG'), 'Is a PVMG');
is($inspec->LEN, 0, 'Not perl owned');
is($fval, $val, 'Same value');
#isnt_zerocopy($fval, $val, 'Diferent buffer');
throws_ok {
$fval = 'Hola';
} qr/read-only/, 'Is ReadOnly';
$t = timeit(50, sub { $DB->get('A', $val) for (1..1000); });
diag("Fast mode in ", timestr($t));
is($fval, $val, 'Same value');
#is_zerocopy($fval, $val, 'Same buffer');
my $oval = $DB->Rget('A');
is($$oval, $val, 'Same value by ref');
#is_zerocopy($$oval, $val, 'Same buffer by ref');
$DB = undef;
$DB = LMDB_File->new($env->BeginTxn(MDB_RDONLY), 1);
is($DB->ReadMode, 1, 'Preserved fast read mode');
$DB->get('A', $fval);
#Dump($fval);
TODO: {
local $TODO = 'End of Txn should invalidate fastmode magic vars';
ok(!defined($val), 'Was invalidated');
# Commented until fixed ZeroCopy
#isnt_zerocopy($fval, $val, 'New Txn, so different buffer');
}
my $count = $fval =~ tr/5/5/;
is($count, 100_000, 'fives');
throws_ok {
$count = $fval =~ tr/5/E/;
} qr/read-only/, 'Is RO';
}
{
# Change environment to MDB_WRITEMAP.
my $env = LMDB::Env->new($dir, { flags => MDB_WRITEMAP });
ok(my $DB = $env->BeginTxn->OpenDB, 'Open unamed in WM');
is($DB->ReadMode(1), 0, 'No fast read mode preserved');
$DB->get('A', my $fval);
#Dump($fval);
# According to cpantesters on Mac OS X and Debian's libc-2.3.6 the
# same address for mmap is used!!
#isnt_zerocopy($fval, $val, 'New Env, so diferent buffer');
$DB->get('A', $val);
for($fval) { # A twist
#Dump($_);
is($_, $large1, 'The value is there');
my $count;
lives_ok {
$count = tr/5/E/;
} 'Now R/W!';
is($count, 100_000, 'fives replaced');
is(tr/5/5/, 0, 'No more fives');
#is_zerocopy($_, $val, 'Same buffer yet');
isnt($_, $large1, 'The value has changed');
{ # Test for warning when indirect writes
my $warn;
local $SIG{__WARN__} = sub { $warn = shift };
$_ = 'Z' x 9;
like($warn, qr/not recommended/, 'Warn emited');
is(length, 1_000_000, 'Length unchanged');
$warn = '';
is(s/123/ABC/g, 99_999, 'Lots changed');
is($warn, '', 'No warn emited');
# Try to extend/grow
$_ .= 'hi';
like($warn, qr/Truncating/, 'Truncating warning emited');
is(length, 1_000_000, 'Length unchanged');
is(substr($_, -1, 1), '9', 'Last byte is 9');
}
#is_zerocopy($_, $val, 'Same buffer yet');
}
SKIP: {
skip 'Need ASCII platform', 1 unless 65 == ord 'A';
for(substr($fval, 20, 9)) {
$_ |= ('p' x 9);
is(uc, 'PQRSTUVWX', 'Bits changed');
}
}
lives_ok {
$DB->Txn->commit();
} 'Changes commited';
isnt($DB->Alive, 'Because Txn terminated');
($DB->Txn = $env->BeginTxn)->AutoCommit(1); #Nice hack
is($DB->Alive, 1, 'Alive again');
is($DB->ReadMode, 1, 'Preserved');
$DB->get('A', $fval);
is($fval =~ tr/A/A/, 99_998, 'Changes preserved');
$fval =~ s/9/\n/g;
{
local $LMDB_File::DEBUG = 1;
my $warn; local $SIG{__WARN__} = sub { $warn .= shift };
$DB->Txn = undef; # Commit, another hack
like($warn, qr/commiting/, 'In AutoCommit');
like($warn, qr/commited/, 'Commited');
}
$DB->Txn = $env->BeginTxn(MDB_RDONLY);
SKIP: {
skip 'Need perlio and PerlIO::scalar', 6
unless PerlIO::Layer->find('perlio') &&
$Config{'extensions'} =~ m|PerlIO/scalar|;
# Try a nice trick
require IO::File;
my $io = IO::File->new($DB->Rget('A'), 'r');
isa_ok($io, 'IO::File');
is($io->getline, 'Z' x 9 . "\n");
is($io->getline, "0ABC4E678\n");
is($io->getline, "pqrstuvwx\n");
my($c, $l) = (3, 30); #So far
while(<$io>) { $c++; $l += length; }
is($c, 100_000, 'All read');
is($l, 1_000_000, 'Complete');
}
}
END {
unless($ENV{KEEP_TMPS}) {
for($dir) {
unlink glob("$_/*");
rmdir $_;
#warn "Removed $_\n";
}
}
}
|
