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SigHandler.h File Reference

Class SigHandler is a UNIX signal handlers manager/dispatcher class. More...

`#include <signal.h>`
`#include <errno.h>`
`#include "assa/Logger.h"`
`#include "assa/IdSet.h"`
`#include "assa/SigSet.h"`
`#include "assa/SigAction.h"`
`#include "assa/EventHandler.h"`

Go to the source code of this file.

## Classes

class | ASSA::SigHandler

## Namespaces

namespace | ASSA

## Detailed Description

Class SigHandler is a UNIX signal handlers manager/dispatcher class.

It plays a role of centralized signal dispatcher for the running application. It is based on Callback pattern that overcomes two major difficulties of using UNIX signals in C++ programs:

- lack of encapsulation
- limited functionality in the signal handler

SigHandler class allows to install one EventHandler object in order to manage application's reaction for UNIX signals. When this registered signal is delivered by OS to the running application, handle_signal() method of the installed EventHandler will be called for service.

If conventional C-like signal handler has been installed prior to calling sh.install(), it will be lost irreversibly.

Definition in file SigHandler.h.