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package XAS::Lib::Pipe; |
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our $VERSION = '0.01'; |
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my $mixin; |
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BEGIN { |
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$mixin = 'XAS::Lib::Pipe::Unix'; |
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}; |
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use POE; |
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use XAS::Lib::POE::PubSub; |
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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::Lib::POE::Session', |
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mixin => $mixin, |
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accessors => 'pipe event', |
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utils => ':validation trim dotid', |
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vars => { |
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PARAMS => { |
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-fifo => { isa => 'Badger::Filesystem::File' }, |
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-filter => { optional => 1, default => undef }, |
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-eol => { optional => 1, default => "\n" }, |
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} |
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} |
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; |
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#use Data::Dumper; |
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# ---------------------------------------------------------------------- |
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# Public Methods |
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# ---------------------------------------------------------------------- |
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sub session_initialize { |
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my $self = shift; |
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0
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my $alias = $self->alias; |
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$self->log->debug("$alias: entering session_initialize()"); |
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43
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# public events |
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45
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# private events |
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47
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$poe_kernel->state('pipe_error', $self, '_pipe_error'); |
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$poe_kernel->state('pipe_input', $self, '_pipe_input'); |
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$poe_kernel->state('pipe_output', $self, '_pipe_output'); |
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$poe_kernel->state('pipe_connect', $self, '_pipe_connect'); |
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0
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$poe_kernel->state('process_error', $self, '_process_error'); |
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0
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$poe_kernel->state('process_input', $self, '_process_input'); |
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54
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# walk the chain |
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56
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0
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$self->SUPER::session_initialize(); |
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$self->log->debug("$alias: leaving session_initialize()"); |
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60
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} |
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62
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sub process_input { |
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1
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my $self = shift; |
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0
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my ($input) = validate_params(\@_, [1]); |
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66
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0
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my $alias = $self->alias; |
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68
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0
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$self->log->debug("$alias: process_input()"); |
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70
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$self->process_output($input); |
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72
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} |
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74
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sub process_error { |
75
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0
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0
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1
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my $self = shift; |
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0
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my ($syscall, $errnum, $errstr) = validate_params(\@_, [1,1,1]); |
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78
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0
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my $alias = $self->alias; |
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0
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$self->log->debug("$alias: process_error()"); |
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82
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0
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$self->log->error_msg('net_client_error', $alias, $errnum, $errstr); |
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84
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} |
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86
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sub process_output { |
87
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0
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0
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1
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my $self = shift; |
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0
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my ($output) = validate_params(\@_, [1]); |
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90
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0
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my $alias = $self->alias; |
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92
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0
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$self->log->debug("$alias: process_output()"); |
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$poe_kernel->post($alias, 'pipe_output', $output); |
94
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95
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} |
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97
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# ---------------------------------------------------------------------- |
98
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# Public Events |
99
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# ---------------------------------------------------------------------- |
100
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101
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# ---------------------------------------------------------------------- |
102
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# Private Events |
103
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# ---------------------------------------------------------------------- |
104
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105
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sub _process_input { |
106
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0
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0
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my ($self, $input) = @_[OBJECT,ARG0]; |
107
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108
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0
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my $alias = $self->alias; |
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110
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0
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$self->log->debug("$alias: _process_input()"); |
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112
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0
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$self->process_input($input); |
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114
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} |
115
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116
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sub _process_error { |
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0
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0
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my ($self, $syscall, $errnum, $errstr) = @_[OBJECT,ARG0..ARG2]; |
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119
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0
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my $alias = $self->alias; |
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121
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0
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$self->log->debug("$alias: _process_error()"); |
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123
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0
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$self->process_error($syscall, $errnum, $errstr); |
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125
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} |
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127
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# ---------------------------------------------------------------------- |
128
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# Private Methods |
129
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# ---------------------------------------------------------------------- |
130
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131
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sub init { |
132
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0
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0
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1
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my $class = shift; |
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134
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0
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my $self = $class->SUPER::init(@_); |
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0
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my $alias = $self->alias; |
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137
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0
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$self->{'event'} = XAS::Lib::POE::PubSub->new(); |
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0
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$self->event->subscribe($alias); |
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140
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0
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$self->init_pipe(); |
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142
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0
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return $self; |
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144
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} |
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146
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1; |
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148
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__END__ |
149
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150
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=head1 NAME |
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152
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XAS::Lib::Pipe - Interact with named pipes |
153
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154
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=head1 SYNOPSIS |
155
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156
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use XAS::Lib::Pipe; |
157
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158
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my $client = XAS::Lib::Pipe->new( |
159
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-fifo => File('/var/lib/xas/pipe'), |
160
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-filter => POE::Filter::Line->new(), |
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-eol => "\n", |
162
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); |
163
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164
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$client->run(); |
165
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166
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=head1 DESCRIPTION |
167
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168
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The module provides a POE based framework for reading and writing to named |
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pipes. |
170
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171
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=head1 METHODS |
172
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173
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=head2 new |
174
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175
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This initializes the module and starts listening on the pipe. The following |
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parametrs are used: |
177
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178
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=over 4 |
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180
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=item B<-alias> |
181
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182
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The name of the POE session. |
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184
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=item B<-fifo> |
185
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186
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The name of the pipe to interact with. |
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188
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=item B<-filter> |
189
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190
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An optional filter to use, defaults to POE::Filter::Line |
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192
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=item B<-eol> |
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194
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An optional EOL, defaults to "\n"; |
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196
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=back |
197
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198
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=head2 process_input($input) |
199
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200
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This method will process the input from the pipe. It takes the |
201
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following parameters: |
202
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203
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=over 4 |
204
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205
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=item B<$input> |
206
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207
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The input received from the pipe. |
208
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209
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=back |
210
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211
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=head2 process_output($output) |
212
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213
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This method will process the output for the pipe. It takes the |
214
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following parameters: |
215
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216
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=over 4 |
217
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218
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=item B<$output> |
219
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220
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The output to be sent to the pipe. |
221
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222
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=back |
223
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224
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=head2 process_error($syscall, $errnum, $errstr) |
225
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226
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This method will process any errors from the pipe. It takes the |
227
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following parameters: |
228
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229
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=over 4 |
230
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231
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=item B<$syscall> |
232
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233
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The function that caused the error. |
234
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235
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=item B<$errnum> |
236
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237
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The OS error number. |
238
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239
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=item B<$errstr> |
240
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241
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The OS error string. |
242
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243
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=back |
244
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245
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=head1 SEE ALSO |
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=over 4 |
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=item L<XAS|XAS> |
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=back |
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=head1 AUTHOR |
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Kevin L. Esteb, E<lt>kevin@kesteb.usE<gt> |
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=head1 COPYRIGHT AND LICENSE |
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Copyright (c) 2012-2016 Kevin L. Esteb |
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This is free software; you can redistribute it and/or modify it under |
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the terms of the Artistic License 2.0. For details, see the full text |
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of the license at http://www.perlfoundation.org/artistic_license_2_0. |
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=cut |