line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
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package XAS::Lib::Net::Client; |
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3
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our $VERSION = '0.03'; |
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5
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1
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1
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4
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use IO::Socket; |
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2
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1
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8
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1
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1
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919
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use IO::Select; |
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1141
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1
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38
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7
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1
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1
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use Errno ':POSIX'; |
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1
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1
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405
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8
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9
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use XAS::Class |
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debug => 0, |
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version => $VERSION, |
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base => 'XAS::Base', |
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mixin => 'XAS::Lib::Mixins::Bufops XAS::Lib::Mixins::Keepalive', |
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utils => ':validation dotid trim', |
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accessors => 'handle select attempts', |
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mutators => 'timeout', |
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import => 'class', |
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vars => { |
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PARAMS => { |
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-port => 1, |
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-host => 1, |
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-tcp_keepalive => { optional => 1, default => 0 }, |
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-timeout => { optional => 1, default => 60 }, |
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-eol => { optional => 1, default => "\015\012" }, |
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}, |
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ERRNO => 0, |
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ERRSTR => '', |
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} |
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1
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1
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5
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; |
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1
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1
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30
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31
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32
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#use Data::Hexdumper; |
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34
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# ---------------------------------------------------------------------- |
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# Public Methods |
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# ---------------------------------------------------------------------- |
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38
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sub connect { |
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0
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0
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1
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my $self = shift; |
40
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41
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0
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$self->class->var('ERRNO', 0); |
42
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0
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$self->class->var('ERRSTR', ''); |
43
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44
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$self->{'handle'} = IO::Socket::INET->new( |
45
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Proto => 'tcp', |
46
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PeerPort => $self->port, |
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PeerAddr => $self->host, |
48
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Timeout => $self->timeout, |
49
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0
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0
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) or do { |
50
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51
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0
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my $errno = $! + 0; |
52
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0
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my $errstr = $!; |
53
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54
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0
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$self->class->var('ERRNO', $errno); |
55
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0
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$self->class->var('ERRSTR', $errstr); |
56
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57
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0
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$self->throw_msg( |
58
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dotid($self->class) . '.connect.noconnect', |
59
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'net_client_noconnect', |
60
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$self->host, |
61
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$self->port, |
62
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$errstr |
63
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); |
64
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65
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}; |
66
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67
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0
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0
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if ($self->tcp_keepalive) { |
68
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69
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0
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$self->log->debug("keepalive activated"); |
70
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71
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0
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$self->enable_keepalive($self->handle); |
72
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73
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} |
74
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75
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0
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$self->handle->blocking(0); |
76
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0
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$self->{'select'} = IO::Select->new($self->handle); |
77
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78
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} |
79
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80
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sub pending { |
81
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0
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0
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1
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my $self = shift; |
82
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83
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0
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return length($self->{'buffer'}); |
84
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85
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} |
86
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87
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sub disconnect { |
88
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0
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0
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1
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my $self = shift; |
89
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90
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0
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0
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if ($self->handle->connected) { |
91
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92
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0
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$self->handle->close(); |
93
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94
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} |
95
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96
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} |
97
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98
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sub get { |
99
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0
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0
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1
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my $self = shift; |
100
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0
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my ($length) = validate_params(\@_, [ |
101
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{ optional => 1, default => 512 } |
102
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]); |
103
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104
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0
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my $output; |
105
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106
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0
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0
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if ($self->pending > $length) { |
107
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108
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0
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$output = $self->buf_slurp(\$self->{'buffer'}, $length); |
109
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110
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} else { |
111
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112
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0
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$self->_fill_buffer(); |
113
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114
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0
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0
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my $l = ($self->pending > $length) ? $length : $self->pending; |
115
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0
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$output = $self->buf_slurp(\$self->{'buffer'}, $l); |
116
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117
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} |
118
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119
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0
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return $output; |
120
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121
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} |
122
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123
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sub gets { |
124
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0
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0
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1
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my $self = shift; |
125
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126
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0
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my $buffer; |
127
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0
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my $output = ''; |
128
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129
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0
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while (my $buf = $self->get()) { |
130
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131
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0
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$buffer .= $buf; |
132
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133
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0
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0
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if ($output = $self->buf_get_line(\$buffer, $self->eol)) { |
134
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135
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0
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$self->{'buffer'} = $buffer . $self->{'buffer'}; |
136
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0
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last; |
137
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138
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} |
139
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140
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} |
141
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142
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0
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return trim($output); |
143
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144
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} |
145
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146
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sub put { |
147
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0
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0
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1
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my $self = shift; |
148
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0
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my ($buffer) = validate_params(\@_, [1]); |
149
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150
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0
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my $counter = 0; |
151
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0
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my $working = 1; |
152
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0
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my $written = 0; |
153
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0
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my $timeout = $self->timeout; |
154
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0
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my $bufsize = length($buffer); |
155
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156
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0
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$self->class->var('ERRNO', 0); |
157
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0
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$self->class->var('ERRSTR', ''); |
158
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159
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0
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while ($working) { |
160
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161
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0
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$self->handle->clearerr(); |
162
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|
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163
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0
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0
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|
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if ($self->select->can_write($timeout)) { |
164
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165
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0
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0
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if (my $bytes = $self->handle->syswrite($buffer, $bufsize)) { |
166
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167
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0
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$written += $bytes; |
168
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0
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$buffer = substr($buffer, $bytes); |
169
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0
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0
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$working = 0 if ($written >= $bufsize); |
170
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171
|
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} else { |
172
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173
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0
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0
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if ($self->handle->error) { |
174
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175
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0
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my $errno = $! + 0; |
176
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0
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my $errstr = $!; |
177
|
|
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178
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0
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0
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if ($errno == EAGAIN) { |
179
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|
180
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0
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$counter++; |
181
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0
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0
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$working = 0 if ($counter > $self->attempts); |
182
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183
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} else { |
184
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185
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0
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$self->class->var('ERRNO', $errno); |
186
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0
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$self->class->var('ERRSTR', $errstr); |
187
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188
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0
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$self->throw_msg( |
189
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|
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dotid($self->class) . '.put', |
190
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'net_client_network', |
191
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|
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|
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$errstr |
192
|
|
|
|
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); |
193
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194
|
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} |
195
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|
196
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} |
197
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198
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} |
199
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200
|
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} else { |
201
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202
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0
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$working = 0; |
203
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204
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} |
205
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206
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} |
207
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208
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0
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|
return $written; |
209
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210
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} |
211
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212
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sub puts { |
213
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0
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|
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0
|
1
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|
my $self = shift; |
214
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0
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|
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|
my ($buffer) = validate_params(\@_, [1]); |
215
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216
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0
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|
my $data = sprintf("%s%s", trim($buffer), $self->eol); |
217
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0
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|
my $written = $self->put($data); |
218
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219
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0
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return $written; |
220
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221
|
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} |
222
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|
223
|
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sub errno { |
224
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0
|
|
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0
|
1
|
|
my $class = shift; |
225
|
0
|
|
|
|
|
|
my ($value) = validate_params(\@_, [ |
226
|
|
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|
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|
|
{ optional => 1, default => undef } |
227
|
|
|
|
|
|
|
]); |
228
|
|
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|
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|
229
|
0
|
0
|
|
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|
|
class->var('ERRNO', $value) if (defined($value)); |
230
|
|
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|
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231
|
0
|
|
|
|
|
|
return class->var('ERRNO'); |
232
|
|
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|
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|
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233
|
|
|
|
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|
|
} |
234
|
|
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|
|
|
|
|
235
|
|
|
|
|
|
|
sub errstr { |
236
|
0
|
|
|
0
|
1
|
|
my $class = shift; |
237
|
0
|
|
|
|
|
|
my ($value) = validate_params(\@_, [ |
238
|
|
|
|
|
|
|
{ optional => 1, default => undef } |
239
|
|
|
|
|
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|
]); |
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class->var('ERRSTR', $value) if (defined($value)); |
242
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243
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0
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return class->var('ERRSTR'); |
244
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} |
246
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247
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sub setup { |
248
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my $self = shift; |
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250
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} |
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# ---------------------------------------------------------------------- |
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# Private Methods |
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# ---------------------------------------------------------------------- |
255
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256
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sub init { |
257
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1
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my $class = shift; |
258
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my $self = $class->SUPER::init(@_); |
260
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261
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$self->{'attempts'} = 5; |
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$self->{'buffer'} = ''; |
263
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264
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0
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$self->init_keepalive(); # init tcp keepalive definations |
265
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266
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0
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return $self; |
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268
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} |
269
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270
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sub _fill_buffer { |
271
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my $self = shift; |
272
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273
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my $counter = 0; |
274
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my $working = 1; |
275
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my $read = 0; |
276
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my $timeout = $self->timeout; |
277
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278
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$self->class->var('ERRNO', 0); |
279
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0
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$self->class->var('ERRSTR', ''); |
280
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281
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0
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$self->handle->blocking(0); |
282
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283
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0
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while ($working) { |
284
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285
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0
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my $buf; |
286
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287
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0
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$self->handle->clearerr(); |
288
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289
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0
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0
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|
|
if ($self->select->can_read($timeout)) { |
290
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291
|
0
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0
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|
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|
|
if (my $bytes = $self->handle->sysread($buf, 512)) { |
292
|
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293
|
0
|
|
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|
$self->{'buffer'} .= $buf; |
294
|
0
|
|
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|
|
|
$read += $bytes; |
295
|
|
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|
|
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|
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296
|
|
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|
|
} else { |
297
|
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|
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|
298
|
0
|
0
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|
|
|
|
if ($self->handle->error) { |
299
|
|
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|
|
|
|
300
|
0
|
|
|
|
|
|
my $errno = $! + 0; |
301
|
0
|
|
|
|
|
|
my $errstr = $!; |
302
|
|
|
|
|
|
|
|
303
|
0
|
|
|
|
|
|
$self->log->debug("fill_buffer: errno = $errno"); |
304
|
|
|
|
|
|
|
|
305
|
0
|
0
|
|
|
|
|
if ($errno == EAGAIN) { |
306
|
|
|
|
|
|
|
|
307
|
0
|
|
|
|
|
|
$counter++; |
308
|
0
|
0
|
|
|
|
|
$working = 0 if ($counter > $self->attempts); |
309
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
} else { |
311
|
|
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|
|
|
|
|
312
|
0
|
|
|
|
|
|
$self->class->var('ERRNO', $errno); |
313
|
0
|
|
|
|
|
|
$self->class->var('ERRSTR', $errstr); |
314
|
|
|
|
|
|
|
|
315
|
0
|
|
|
|
|
|
$self->throw_msg( |
316
|
|
|
|
|
|
|
dotid($self->class) . '.fill_buffer', |
317
|
|
|
|
|
|
|
'net_client_network', |
318
|
|
|
|
|
|
|
$errstr |
319
|
|
|
|
|
|
|
); |
320
|
|
|
|
|
|
|
|
321
|
|
|
|
|
|
|
} |
322
|
|
|
|
|
|
|
|
323
|
|
|
|
|
|
|
} |
324
|
|
|
|
|
|
|
|
325
|
|
|
|
|
|
|
} |
326
|
|
|
|
|
|
|
|
327
|
|
|
|
|
|
|
} else { |
328
|
|
|
|
|
|
|
|
329
|
0
|
|
|
|
|
|
$working = 0; |
330
|
|
|
|
|
|
|
|
331
|
|
|
|
|
|
|
} |
332
|
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
} |
334
|
|
|
|
|
|
|
|
335
|
0
|
|
|
|
|
|
$self->handle->blocking(1); |
336
|
|
|
|
|
|
|
|
337
|
0
|
|
|
|
|
|
return $read; |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
} |
340
|
|
|
|
|
|
|
|
341
|
|
|
|
|
|
|
1; |
342
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
__END__ |
344
|
|
|
|
|
|
|
|
345
|
|
|
|
|
|
|
=head1 NAME |
346
|
|
|
|
|
|
|
|
347
|
|
|
|
|
|
|
XAS::Lib::Net::Client - The network client interface for the XAS environment |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
=head1 SYNOPSIS |
350
|
|
|
|
|
|
|
|
351
|
|
|
|
|
|
|
my $rpc = XAS::Lib::Net::Client->new( |
352
|
|
|
|
|
|
|
-port => 9505, |
353
|
|
|
|
|
|
|
-host => 'localhost', |
354
|
|
|
|
|
|
|
}; |
355
|
|
|
|
|
|
|
|
356
|
|
|
|
|
|
|
=head1 DESCRIPTION |
357
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
This module implements a simple text orientated network protocol. All "packets" |
359
|
|
|
|
|
|
|
will have an explicit "\015\012" appended. This delineates the "packets" and is |
360
|
|
|
|
|
|
|
network neutral. No attempt is made to decipher these "packets". |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
=head1 METHODS |
363
|
|
|
|
|
|
|
|
364
|
|
|
|
|
|
|
=head2 new |
365
|
|
|
|
|
|
|
|
366
|
|
|
|
|
|
|
This initializes the module and can take these parameters. It doesn't actually |
367
|
|
|
|
|
|
|
make a network connection. |
368
|
|
|
|
|
|
|
|
369
|
|
|
|
|
|
|
=over 4 |
370
|
|
|
|
|
|
|
|
371
|
|
|
|
|
|
|
=item B<-port> |
372
|
|
|
|
|
|
|
|
373
|
|
|
|
|
|
|
The port number to attach too. |
374
|
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
=item B<-host> |
376
|
|
|
|
|
|
|
|
377
|
|
|
|
|
|
|
The host to use for the connection. This can be an IP address or |
378
|
|
|
|
|
|
|
a host name. |
379
|
|
|
|
|
|
|
|
380
|
|
|
|
|
|
|
=item B<-timeout> |
381
|
|
|
|
|
|
|
|
382
|
|
|
|
|
|
|
An optional timeout, it defaults to 60 seconds. |
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
=item B<-eol> |
385
|
|
|
|
|
|
|
|
386
|
|
|
|
|
|
|
An optional eol. The default is "\015\012". Which is network netural. |
387
|
|
|
|
|
|
|
|
388
|
|
|
|
|
|
|
=item B<-tcp_keeplive> |
389
|
|
|
|
|
|
|
|
390
|
|
|
|
|
|
|
Turns on TCP keepalive for each connection. |
391
|
|
|
|
|
|
|
|
392
|
|
|
|
|
|
|
=back |
393
|
|
|
|
|
|
|
|
394
|
|
|
|
|
|
|
=head2 connect |
395
|
|
|
|
|
|
|
|
396
|
|
|
|
|
|
|
Connect to the defined socket. |
397
|
|
|
|
|
|
|
|
398
|
|
|
|
|
|
|
=head2 disconnect |
399
|
|
|
|
|
|
|
|
400
|
|
|
|
|
|
|
Disconnect from the defined socket. |
401
|
|
|
|
|
|
|
|
402
|
|
|
|
|
|
|
=head2 put($buffer) |
403
|
|
|
|
|
|
|
|
404
|
|
|
|
|
|
|
This writes a buffer to the socket. Returns the number of bytes written. |
405
|
|
|
|
|
|
|
|
406
|
|
|
|
|
|
|
=over 4 |
407
|
|
|
|
|
|
|
|
408
|
|
|
|
|
|
|
=item B<$buffer> |
409
|
|
|
|
|
|
|
|
410
|
|
|
|
|
|
|
The buffer to send over the socket. |
411
|
|
|
|
|
|
|
|
412
|
|
|
|
|
|
|
=back |
413
|
|
|
|
|
|
|
|
414
|
|
|
|
|
|
|
=head2 puts($buffer) |
415
|
|
|
|
|
|
|
|
416
|
|
|
|
|
|
|
This writes a buffer that is terminated with eol to the socket. Returns the |
417
|
|
|
|
|
|
|
number of bytes written. |
418
|
|
|
|
|
|
|
|
419
|
|
|
|
|
|
|
=over 4 |
420
|
|
|
|
|
|
|
|
421
|
|
|
|
|
|
|
=item B<$buffer> |
422
|
|
|
|
|
|
|
|
423
|
|
|
|
|
|
|
The buffer to send over the socket. |
424
|
|
|
|
|
|
|
|
425
|
|
|
|
|
|
|
=back |
426
|
|
|
|
|
|
|
|
427
|
|
|
|
|
|
|
=head2 get($length) |
428
|
|
|
|
|
|
|
|
429
|
|
|
|
|
|
|
This block reads data from the socket. A buffer is returned when it reaches |
430
|
|
|
|
|
|
|
$length or timeout. |
431
|
|
|
|
|
|
|
|
432
|
|
|
|
|
|
|
=over 4 |
433
|
|
|
|
|
|
|
|
434
|
|
|
|
|
|
|
=item B<$length> |
435
|
|
|
|
|
|
|
|
436
|
|
|
|
|
|
|
An optional length for the buffer. Defaults to 512 bytes. |
437
|
|
|
|
|
|
|
|
438
|
|
|
|
|
|
|
=back |
439
|
|
|
|
|
|
|
|
440
|
|
|
|
|
|
|
=head2 gets |
441
|
|
|
|
|
|
|
|
442
|
|
|
|
|
|
|
This reads a buffer delimited by the eol from the socket. |
443
|
|
|
|
|
|
|
|
444
|
|
|
|
|
|
|
=head2 pending |
445
|
|
|
|
|
|
|
|
446
|
|
|
|
|
|
|
This returns the size of the internal read buffer. |
447
|
|
|
|
|
|
|
|
448
|
|
|
|
|
|
|
=head2 errno |
449
|
|
|
|
|
|
|
|
450
|
|
|
|
|
|
|
A class method to return the error number. |
451
|
|
|
|
|
|
|
|
452
|
|
|
|
|
|
|
=head2 errstr |
453
|
|
|
|
|
|
|
|
454
|
|
|
|
|
|
|
A class method to return the error string. |
455
|
|
|
|
|
|
|
|
456
|
|
|
|
|
|
|
=head1 SEE ALSO |
457
|
|
|
|
|
|
|
|
458
|
|
|
|
|
|
|
=over 4 |
459
|
|
|
|
|
|
|
|
460
|
|
|
|
|
|
|
=item L<XAS::Lib::Net::POE::Client|XAS::Lib::Net::POE::Client> |
461
|
|
|
|
|
|
|
|
462
|
|
|
|
|
|
|
=item L<XAS::Lib::Net::Server|XAS::Lib::Net::Server> |
463
|
|
|
|
|
|
|
|
464
|
|
|
|
|
|
|
=item L<XAS|XAS> |
465
|
|
|
|
|
|
|
|
466
|
|
|
|
|
|
|
=back |
467
|
|
|
|
|
|
|
|
468
|
|
|
|
|
|
|
=head1 AUTHOR |
469
|
|
|
|
|
|
|
|
470
|
|
|
|
|
|
|
Kevin L. Esteb, E<lt>kevin@kesteb.usE<gt> |
471
|
|
|
|
|
|
|
|
472
|
|
|
|
|
|
|
Copyright (c) 2012-2015 Kevin L. Esteb |
473
|
|
|
|
|
|
|
|
474
|
|
|
|
|
|
|
This is free software; you can redistribute it and/or modify it under |
475
|
|
|
|
|
|
|
the terms of the Artistic License 2.0. For details, see the full text |
476
|
|
|
|
|
|
|
of the license at http://www.perlfoundation.org/artistic_license_2_0. |
477
|
|
|
|
|
|
|
|
478
|
|
|
|
|
|
|
=cut |