io.h File Reference

Core asynchronous I/O class templates for event-driven operations. More...

#include <qb/utility/type_traits.h>
#include "event/all.h"
#include "listener.h"
#include "protocol.h"

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Classes
class	qb::io::async::base< _Derived, _EV_EVENT >
	Base class for all qb-io asynchronous components that interact with the event listener. More...
class	qb::io::async::with_timeout< _Derived >
	CRTP base class that adds timeout functionality to derived asynchronous components. More...
class	qb::io::async::Timeout< _Func >
	Utility class to execute a function after a specified timeout using the event loop. More...
class	qb::io::async::file_watcher< _Derived >
	CRTP base class for watching a single file for attribute changes and processing its contents. More...
class	qb::io::async::directory_watcher< _Derived >
	CRTP base class for watching a directory for attribute changes. More...
class	qb::io::async::input< _Derived >
	CRTP base class for managing asynchronous input operations with protocol processing. More...
class	qb::io::async::output< _Derived >
	CRTP base class for managing asynchronous output operations. More...
class	qb::io::async::io< _Derived >
	CRTP base class for managing bidirectional asynchronous I/O operations with protocol processing. More...

Macros
#define	Derived   static_cast<_Derived &>(*this)

Functions
	CREATE_MEMBER_CHECK (Protocol)
template<typename _Func>
void	qb::io::async::callback (_Func &&func, double timeout=0.)
	Utility function to schedule a callable for execution after a timeout.
template<typename _Func, typename Rep, typename Period>
void	qb::io::async::callback (_Func &&func, std::chrono::duration< Rep, Period > timeout_duration)

Detailed Description

Core asynchronous I/O class templates for event-driven operations.

This file defines the fundamental class templates for asynchronous I/O operations in the QB IO library. It includes base classes for handling events, timeouts, file watching, and bidirectional I/O with protocol-based message processing.

The classes in this file use the Curiously Recurring Template Pattern (CRTP) to provide static polymorphism, avoiding the overhead of virtual function calls while still allowing customization in derived classes.

Author

qb - C++ Actor Framework

Copyright

Copyright (c) 2011-2025 qb - isndev (cpp.actor) Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.