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Special Forums News, Links, Events and Announcements Complex Event Processing RSS News ?Comprehensive Guide to Evaluating Event Stream Processing Engines? Post 302261096 by Linux Bot on Sunday 23rd of November 2008 01:40:08 PM
Old 11-23-2008
?Comprehensive Guide to Evaluating Event Stream Processing Engines?

A question uppermost in the minds of many visitors to this website: How to evaluate CEP engines.Here is one vendor’s “vendor independent” analysis of the issue. I can think of many additional questions that prospective customers of CEP engines should ask. But this is a beginning to solving the problem- DCL.The purpose of this white [...]

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Mojo::IOLoop::Stream(3pm)				User Contributed Perl Documentation				 Mojo::IOLoop::Stream(3pm)

NAME
Mojo::IOLoop::Stream - Non-blocking I/O stream SYNOPSIS
use Mojo::IOLoop::Stream; # Create stream my $stream = Mojo::IOLoop::Stream->new($handle); $stream->on(read => sub { my ($stream, $chunk) = @_; ... }); $stream->on(close => sub { my $stream = shift; ... }); $stream->on(error => sub { my ($stream, $err) = @_; ... }); # Start and stop watching for new data $stream->start; $stream->stop; DESCRIPTION
Mojo::IOLoop::Stream is a container for I/O streams used by Mojo::IOLoop. EVENTS
Mojo::IOLoop::Stream can emit the following events. "close" $stream->on(close => sub { my $stream = shift; ... }); Emitted safely if the stream gets closed. "drain" $stream->on(drain => sub { my $stream = shift; ... }); Emitted safely once all data has been written. "error" $stream->on(error => sub { my ($stream, $err) = @_; ... }); Emitted safely if an error happens on the stream. "read" $stream->on(read => sub { my ($stream, $chunk) = @_; ... }); Emitted safely if new data arrives on the stream. "timeout" $stream->on(timeout => sub { my $stream = shift; ... }); Emitted safely if the stream has been inactive for too long and will get closed automatically. "write" $stream->on(write => sub { my ($stream, $chunk) = @_; ... }); Emitted safely if new data has been written to the stream. ATTRIBUTES
Mojo::IOLoop::Stream implements the following attributes. "reactor" my $reactor = $stream->reactor; $stream = $stream->reactor(Mojo::Reactor::Poll->new); Low level event reactor, defaults to the "reactor" attribute value of the global Mojo::IOLoop singleton. "timeout" my $timeout = $stream->timeout; $stream = $stream->timeout(45); Maximum amount of time in seconds stream can be inactive before getting closed automatically, defaults to 15. Setting the value to 0 will allow this stream to be inactive indefinitely. METHODS
Mojo::IOLoop::Stream inherits all methods from Mojo::EventEmitter and implements the following new ones. "new" my $stream = Mojo::IOLoop::Stream->new($handle); Construct a new Mojo::IOLoop::Stream object. "close" $stream->close; Close stream immediately. "handle" my $handle = $stream->handle; Get handle for stream. "is_readable" my $success = $stream->is_readable; Quick non-blocking check if stream is readable, useful for identifying tainted sockets. "is_writing" my $success = $stream->is_writing; Check if stream is writing. "start" $stream->start; Start watching for new data on the stream. "stop" $stream->stop; Stop watching for new data on the stream. "steal_handle" my $handle = $stream->steal_handle; Steal handle from stream and prevent it from getting closed automatically. "write" $stream->write('Hello!'); $stream->write('Hello!', sub {...}); Write data to stream, the optional drain callback will be invoked once all data has been written. SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojo::IOLoop::Stream(3pm)
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