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SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
79 lines
1.7 KiB
C++
79 lines
1.7 KiB
C++
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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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/Noncopyable.h>
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#include <AK/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <AK/Types.h>
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#include <LibIPC/Forward.h>
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namespace Core {
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class AnonymousBufferImpl final : public RefCounted<AnonymousBufferImpl> {
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public:
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static RefPtr<AnonymousBufferImpl> create(int fd, size_t);
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~AnonymousBufferImpl();
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int fd() const { return m_fd; }
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size_t size() const { return m_size; }
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void* data() { return m_data; }
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const void* data() const { return m_data; }
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private:
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AnonymousBufferImpl(int fd, size_t, void*);
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int m_fd { -1 };
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size_t m_size { 0 };
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void* m_data { nullptr };
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};
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class AnonymousBuffer {
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public:
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static AnonymousBuffer create_with_size(size_t);
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static AnonymousBuffer create_from_anon_fd(int fd, size_t);
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AnonymousBuffer() { }
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~AnonymousBuffer();
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bool is_valid() const { return m_impl; }
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int fd() const { return m_impl ? m_impl->fd() : -1; }
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size_t size() const { return m_impl ? m_impl->size() : 0; }
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template<typename T>
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T* data()
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{
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static_assert(IsVoid<T> || IsTrivial<T>);
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if (!m_impl)
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return nullptr;
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return (T*)m_impl->data();
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}
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template<typename T>
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const T* data() const
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{
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static_assert(IsVoid<T> || IsTrivial<T>);
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if (!m_impl)
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return nullptr;
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return (const T*)m_impl->data();
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}
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private:
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explicit AnonymousBuffer(NonnullRefPtr<AnonymousBufferImpl>);
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RefPtr<AnonymousBufferImpl> m_impl;
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};
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}
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namespace IPC {
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bool encode(Encoder&, const Core::AnonymousBuffer&);
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bool decode(Decoder&, Core::AnonymousBuffer&);
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}
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