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Ryujinx/Ryujinx.HLE/HOS/Ipc/IpcHandleDesc.cs

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using System;
using System.IO;
namespace Ryujinx.HLE.HOS.Ipc
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{
class IpcHandleDesc
{
public bool HasPId { get; private set; }
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public long PId { get; private set; }
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public int[] ToCopy { get; private set; }
public int[] ToMove { get; private set; }
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public IpcHandleDesc(BinaryReader reader)
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{
int word = reader.ReadInt32();
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HasPId = (word & 1) != 0;
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ToCopy = new int[(word >> 1) & 0xf];
ToMove = new int[(word >> 5) & 0xf];
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PId = HasPId ? reader.ReadInt64() : 0;
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for (int index = 0; index < ToCopy.Length; index++)
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{
ToCopy[index] = reader.ReadInt32();
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}
for (int index = 0; index < ToMove.Length; index++)
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{
ToMove[index] = reader.ReadInt32();
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}
}
public IpcHandleDesc(int[] copy, int[] move)
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{
ToCopy = copy ?? throw new ArgumentNullException(nameof(copy));
ToMove = move ?? throw new ArgumentNullException(nameof(move));
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}
public IpcHandleDesc(int[] copy, int[] move, long pId) : this(copy, move)
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{
PId = pId;
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HasPId = true;
}
public static IpcHandleDesc MakeCopy(params int[] handles)
{
return new IpcHandleDesc(handles, new int[0]);
}
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public static IpcHandleDesc MakeMove(params int[] handles)
{
return new IpcHandleDesc(new int[0], handles);
}
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public byte[] GetBytes()
{
using (MemoryStream ms = new MemoryStream())
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{
BinaryWriter writer = new BinaryWriter(ms);
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int word = HasPId ? 1 : 0;
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word |= (ToCopy.Length & 0xf) << 1;
word |= (ToMove.Length & 0xf) << 5;
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writer.Write(word);
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if (HasPId)
{
writer.Write(PId);
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}
foreach (int handle in ToCopy)
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{
writer.Write(handle);
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}
foreach (int handle in ToMove)
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{
writer.Write(handle);
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}
return ms.ToArray();
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}
}
}
}