What is AnyEvent in Perl?

AnyEvent is a powerful and flexible event framework for Perl that provides support for asynchronous programming. It allows developers to create non-blocking code that can handle multiple tasks at the same time, which is essential for building responsive applications, especially in networking and I/O operations.

AnyEvent offers a unified interface to various event loops including IO::Async, AnyEvent::HTTP, and others. This tool is particularly useful for developers working on applications that require high concurrency, such as web servers or real-time data processing applications.

Example of AnyEvent in Action

# Include the AnyEvent module use AnyEvent; # Create a condition variable my $cv = AnyEvent->condvar; # Non-blocking HTTP request example http_get "http://www.example.com" => sub { my $response = shift; # Response callback print "Response: $response\n"; $cv->send; # Notify that the request is complete }; # Wait for the condition variable to be signaled $cv->recv;

AnyEvent Perl asynchronous programming event framework non-blocking code event loops