mirror of
https://git.eden-emu.dev/eden-emu/eden
synced 2026-06-28 16:15:34 +02:00
6bdb03d8ac
This should fix Windows devices with low RAM like 4GB, or anything lower than 8GB. Signed-off-by: lizzie <lizzie@eden-emu.dev> Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4128 Reviewed-by: Maufeat <sahyno1996@gmail.com> Reviewed-by: MaranBr <maranbr@eden-emu.dev>
44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
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// SPDX-License-Identifier: GPL-3.0-or-later
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// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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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 | MEM_RESERVE, PAGE_READWRITE);
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if (base == nullptr) {
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// Probably failing to reserve is less likely than failing to commit
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base = VirtualAlloc(nullptr, size, MEM_COMMIT, PAGE_READWRITE);
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}
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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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#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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#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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