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MemArena: Prepare interface for proper memory reservation.

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This commit is contained in:
Admiral H. Curtiss
2021-06-21 02:13:00 +02:00
parent 812cc8b632
commit 1554128560
5 changed files with 176 additions and 67 deletions
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31
Source/Core/Common/MemArenaWin.cpp
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@ -18,6 +18,9 @@
namespace Common
{
MemArena::MemArena() = default;
MemArena::~MemArena() = default;
void MemArena::GrabSHMSegment(size_t size)
{
const std::string name = "dolphin-emu." + std::to_string(GetCurrentProcessId());
@ -31,24 +34,18 @@ void MemArena::ReleaseSHMSegment()
hMemoryMapping = 0;
}
void* MemArena::CreateView(s64 offset, size_t size, void* base)
void* MemArena::CreateView(s64 offset, size_t size)
{
return MapViewOfFileEx(hMemoryMapping, FILE_MAP_ALL_ACCESS, 0, (DWORD)((u64)offset), size, base);
return MapInMemoryRegion(offset, size, nullptr);
}
void MemArena::ReleaseView(void* view, size_t size)
{
UnmapViewOfFile(view);
UnmapFromMemoryRegion(view, size);
}
u8* MemArena::FindMemoryBase()
u8* MemArena::ReserveMemoryRegion(size_t memory_size)
{
#if _ARCH_32
const size_t memory_size = 0x31000000;
#else
const size_t memory_size = 0x400000000;
#endif
u8* base = static_cast<u8*>(VirtualAlloc(nullptr, memory_size, MEM_RESERVE, PAGE_READWRITE));
if (!base)
{
@ -58,4 +55,18 @@ u8* MemArena::FindMemoryBase()
VirtualFree(base, 0, MEM_RELEASE);
return base;
}
void MemArena::ReleaseMemoryRegion()
{
}
void* MemArena::MapInMemoryRegion(s64 offset, size_t size, void* base)
{
return MapViewOfFileEx(hMemoryMapping, FILE_MAP_ALL_ACCESS, 0, (DWORD)((u64)offset), size, base);
}
void MemArena::UnmapFromMemoryRegion(void* view, size_t size)
{
UnmapViewOfFile(view);
}
} // namespace Common