53 lines
1 KiB
C++
53 lines
1 KiB
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 <stdio.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#if defined __APPLE__ || defined __FreeBSD__ || defined __OpenBSD__
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#include <sys/sysctl.h>
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#elif defined __HAIKU__
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#include <OS.h>
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#else
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#include <sys/sysinfo.h>
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#endif
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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) {
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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, std::size_t size) {
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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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