b3c8997829
Makes page tables and virtual buffers able to be moved, but not copied, making the interface more flexible. Previously, with the destructor specified, but no move assignment or constructor specified, they wouldn't be implicitly generated.
44 lines
885 B
C++
44 lines
885 B
C++
// Copyright 2020 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <sys/mman.h>
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#endif
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#include "common/assert.h"
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#include "common/virtual_buffer.h"
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namespace Common {
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void* AllocateMemoryPages(std::size_t size) noexcept {
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#ifdef _WIN32
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void* base{VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_READWRITE)};
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#else
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void* base{mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0)};
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if (base == MAP_FAILED) {
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base = nullptr;
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}
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#endif
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ASSERT(base);
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return base;
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}
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void FreeMemoryPages(void* base, [[maybe_unused]] std::size_t size) noexcept {
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if (!base) {
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return;
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}
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#ifdef _WIN32
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ASSERT(VirtualFree(base, 0, MEM_RELEASE));
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#else
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ASSERT(munmap(base, size) == 0);
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#endif
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}
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} // namespace Common
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