57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* Copyright 2018 Danny Robson <danny@nerdcruft.net>
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*/
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#pragma once
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#include "../view.hpp"
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#include <cstddef>
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#include <cstdlib>
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#if defined(PLATFORM_WIN32)
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inline int
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posix_memalign (void **ptr, std::size_t align, std::size_t size)
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{
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*ptr = _aligned_malloc (size, align);
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return *ptr ? 0 : errno;
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}
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#endif
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namespace cruft::alloc {
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class malloc {
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public:
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template <typename T>
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cruft::view<T*> allocate (size_t count)
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{
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return {
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reinterpret_cast<T*> (malloc (sizeof (T) * count)),
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count
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};
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}
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template <typename T>
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cruft::view<T*>
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allocate (size_t count, size_t align)
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{
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void* ptr;
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auto err = posix_memalign (&ptr, align, sizeof (T) * count);
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if (err or !ptr)
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throw std::bad_alloc ();
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return { reinterpret_cast<T*> (ptr), count };
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}
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template <typename T>
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void
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deallocate (cruft::view<std::byte*> ptr)
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{
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::free (ptr.data ());
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}
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};
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}
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