# Poco

# template < class TArgs, class TMutex = FastMutex >

# class FIFOEvent

Library: Foundation
Package: Events
Header: Poco/FIFOEvent.h

## Description

A FIFOEvent uses internally a FIFOStrategy which guarantees that delegates are invoked in the order they were added to the event.

Note that as of release 1.4.2, this is the default behavior implemented by BasicEvent, so this class is provided for backwards compatibility only.

## Inheritance

Direct Base Classes: AbstractEvent < TArgs, FIFOStrategy < TArgs, AbstractDelegate < TArgs >>, AbstractDelegate < TArgs >, TMutex >

All Base Classes: AbstractEvent < TArgs, FIFOStrategy < TArgs, AbstractDelegate < TArgs >>, AbstractDelegate < TArgs >, TMutex >

## Member Summary

Member Functions: operator =

## Constructors

### FIFOEvent

FIFOEvent() = default;

### FIFOEvent

FIFOEvent(
const FIFOEvent & e
) = delete;

## Destructor

### ~FIFOEvent

~FIFOEvent() = default;

## Member Functions

### operator =

FIFOEvent & operator = (
const FIFOEvent & e
) = delete;