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This class is a smart pointer that let you provide a custom deleter to free the pointer. It is quite primitive compared to other smart pointers but can still be useful when interacting with C types that provides a custom `free()` function.
42 lines
818 B
C++
42 lines
818 B
C++
/*
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* Copyright (c) 2022, Lucas Chollet <lucas.chollet@free.fr>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Function.h>
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#include <AK/Noncopyable.h>
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#include <AK/StdLibExtras.h>
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template<typename T>
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struct OwnPtrWithCustomDeleter {
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AK_MAKE_NONCOPYABLE(OwnPtrWithCustomDeleter);
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public:
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OwnPtrWithCustomDeleter(T* ptr, Function<void(T*)> deleter)
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: m_ptr(ptr)
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, m_deleter(move(deleter))
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{
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}
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OwnPtrWithCustomDeleter(OwnPtrWithCustomDeleter&& other)
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{
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swap(m_ptr, other.m_ptr);
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swap(m_deleter, other.m_deleter);
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};
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~OwnPtrWithCustomDeleter()
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{
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if (m_ptr) {
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VERIFY(m_deleter);
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m_deleter(m_ptr);
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}
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}
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private:
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T* m_ptr { nullptr };
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Function<void(T*)> m_deleter {};
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};
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