Ryujinx-git/Ryujinx.HLE/HOS/Kernel/KTlsPageInfo.cs

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namespace Ryujinx.HLE.HOS.Kernel
{
class KTlsPageInfo
{
public const int TlsEntrySize = 0x200;
public ulong PageAddr { get; private set; }
private bool[] _isSlotFree;
public KTlsPageInfo(ulong pageAddress)
{
PageAddr = pageAddress;
_isSlotFree = new bool[KMemoryManager.PageSize / TlsEntrySize];
for (int index = 0; index < _isSlotFree.Length; index++)
{
_isSlotFree[index] = true;
}
}
public bool TryGetFreePage(out ulong address)
{
address = PageAddr;
for (int index = 0; index < _isSlotFree.Length; index++)
{
if (_isSlotFree[index])
{
_isSlotFree[index] = false;
return true;
}
address += TlsEntrySize;
}
address = 0;
return false;
}
public bool IsFull()
{
bool hasFree = false;
for (int index = 0; index < _isSlotFree.Length; index++)
{
hasFree |= _isSlotFree[index];
}
return !hasFree;
}
public bool IsEmpty()
{
bool allFree = true;
for (int index = 0; index < _isSlotFree.Length; index++)
{
allFree &= _isSlotFree[index];
}
return allFree;
}
public void FreeTlsSlot(ulong address)
{
_isSlotFree[(address - PageAddr) / TlsEntrySize] = true;
}
}
}