| line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
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1
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package IO::LockedFile::Flock; |
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2
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7
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7
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49
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use strict; |
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7
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21
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7
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301
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3
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7
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7
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119
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use Fcntl ':flock'; # import LOCK_* constants |
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7
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14
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7
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1127
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4
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7
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7
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42
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use Carp; |
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7
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14
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7
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12341
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5
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7
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7
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49
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use vars qw( @ISA ); |
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7
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7
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7
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1561
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6
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@ISA = qw( IO::LockedFile ); |
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7
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8
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###################### |
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9
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# lock |
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10
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###################### |
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11
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sub lock { |
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12
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39
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39
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1
|
72
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my $self = shift; |
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13
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14
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39
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100
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524
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my $lock_type = $self->is_writable() ? LOCK_EX : LOCK_SH; |
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15
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16
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39
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93
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my $got_lock = 0; |
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17
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18
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39
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100
|
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|
201
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if ( ! $self->should_block() ) { |
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19
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12
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|
290
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$got_lock = flock( $self, $lock_type | LOCK_NB ); |
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20
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} |
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21
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else { |
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22
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27
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50
|
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|
300
|
$got_lock = flock($self, $lock_type) |
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23
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or croak( "Cannot lock: $!"); |
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24
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} |
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25
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26
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39
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100
|
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436
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$self->SUPER::lock() if ($got_lock); |
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27
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39
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513
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return $got_lock; |
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28
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} |
|
29
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30
|
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###################### |
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31
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# unlock |
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32
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###################### |
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33
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sub unlock { |
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34
|
30
|
|
|
30
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1
|
121
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my $self = shift; |
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35
|
30
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|
443
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flock($self, LOCK_UN); |
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36
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# or croak( ref( $self ) . ": Cannot unlock: $!"); |
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37
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30
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379
|
$self->SUPER::unlock; |
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38
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} |
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39
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40
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1; |
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41
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42
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43
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__END__ |