iox::cxx::GenericRAII

The GenericRAII class is a simple helper class to apply the C++ RAII idiom quickly. You set 2 functions, one which is called in the constructor and another function is called in the destructor which can be useful when handling resources. More...

#include <generic_raii.hpp>

Public Functions

	Name
	GenericRAII(const std::function< void()> cleanupFunction) constructor which creates GenericRAII that calls only the cleanupFunction on destruction
	GenericRAII(const function_ref< void()> initFunction, const std::function< void()> cleanupFunction) constructor which calls initFunction and stores the cleanupFunction which will be called in the destructor
	~GenericRAII() calls m_cleanupFunction callable if it was set in the constructor
	GenericRAII(const GenericRAII & )
GenericRAII &	operator=(const GenericRAII & )
	GenericRAII(GenericRAII && rhs) move constructor which moves a generic raii object without calling the cleanupFunction
GenericRAII &	operator=(GenericRAII && rhs) move assignment which moves a generic raii object without calling the cleanupFunction

Detailed Description

class iox::cxx::GenericRAII;

The GenericRAII class is a simple helper class to apply the C++ RAII idiom quickly. You set 2 functions, one which is called in the constructor and another function is called in the destructor which can be useful when handling resources.

// This example leads to a console output of:
// hello world
// I am doing stuff
// goodbye
void someFunc() {
    auto raii{[](){ std::cout << "hello world\n"; },
                [](){ std::cout << "goodbye\n"; }};
    std::cout << "I am doing stuff\n";
    // raii goes out of scope here and the cleanupFunction is called in the
    // destructor
}

Public Functions Documentation

function GenericRAII

GenericRAII(
    const std::function< void()> cleanupFunction
)

constructor which creates GenericRAII that calls only the cleanupFunction on destruction

Parameters:

• cleanupFunction callable which will be called in the destructor

function GenericRAII

GenericRAII(
    const function_ref< void()> initFunction,
    const std::function< void()> cleanupFunction
)

constructor which calls initFunction and stores the cleanupFunction which will be called in the destructor

Parameters:

• initFunction callable which will be called in the constructor
• cleanupFunction callable which will be called in the destructor

function ~GenericRAII

~GenericRAII()

calls m_cleanupFunction callable if it was set in the constructor

function GenericRAII

GenericRAII(
    const GenericRAII & 
)

function operator=

GenericRAII & operator=(
    const GenericRAII & 
)

function GenericRAII

GenericRAII(
    GenericRAII && rhs
)

move constructor which moves a generic raii object without calling the cleanupFunction

function operator=

GenericRAII & operator=(
    GenericRAII && rhs
)

move assignment which moves a generic raii object without calling the cleanupFunction

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Updated on 31 May 2022 at 15:29:15 CEST