TAP::Parser::MultiplexePerlmProgrammers ReferenceTAP::Parser::Multiplexer(3pm)NAMETAP::Parser::Multiplexer - Multiplex multiple TAP::Parsers
VERSION
Version 3.23
SYNOPSIS
use TAP::Parser::Multiplexer;
my $mux = TAP::Parser::Multiplexer->new;
$mux->add( $parser1, $stash1 );
$mux->add( $parser2, $stash2 );
while ( my ( $parser, $stash, $result ) = $mux->next ) {
# do stuff
}
DESCRIPTION
"TAP::Parser::Multiplexer" gathers input from multiple TAP::Parsers.
Internally it calls select on the input file handles for those parsers
to wait for one or more of them to have input available.
See TAP::Harness for an example of its use.
METHODS
Class Methods
"new"
my $mux = TAP::Parser::Multiplexer->new;
Returns a new "TAP::Parser::Multiplexer" object.
Instance Methods
"add"
$mux->add( $parser, $stash );
Add a TAP::Parser to the multiplexer. $stash is an optional opaque
reference that will be returned from "next" along with the parser and
the next result.
"parsers"
my $count = $mux->parsers;
Returns the number of parsers. Parsers are removed from the multiplexer
when their input is exhausted.
"next"
Return a result from the next available parser. Returns a list
containing the parser from which the result came, the stash that
corresponds with that parser and the result.
my ( $parser, $stash, $result ) = $mux->next;
If $result is undefined the corresponding parser has reached the end of
its input (and will automatically be removed from the multiplexer).
When all parsers are exhausted an empty list will be returned.
if ( my ( $parser, $stash, $result ) = $mux->next ) {
if ( ! defined $result ) {
# End of this parser
}
else {
# Process result
}
}
else {
# All parsers finished
}
See Also
TAP::Parser
TAP::Harness
perl v5.16.3 2013-03-04 TAP::Parser::Multiplexer(3pm)
