Ryujinx/Ryujinx.HLE/HOS/Services/Lm/LogService/ILogger.cs

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C#
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using Ryujinx.Common.Logging;
using System.IO;
using System.Text;
namespace Ryujinx.HLE.HOS.Services.Lm.LogService
{
class ILogger : IpcService
{
public ILogger() { }
private static int ReadEncodedInt(BinaryReader reader)
{
int result = 0;
int position = 0;
byte encoded;
do
{
encoded = reader.ReadByte();
result += (encoded & 0x7F) << (7 * position);
position++;
} while ((encoded & 0x80) != 0);
return result;
}
[Command(0)]
// Log(buffer<unknown, 0x21>)
public ResultCode Log(ServiceCtx context)
{
(long bufPos, long bufSize) = context.Request.GetBufferType0x21();
byte[] logBuffer = new byte[bufSize];
context.Memory.Read((ulong)bufPos, logBuffer);
using (MemoryStream ms = new MemoryStream(logBuffer))
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{
BinaryReader reader = new BinaryReader(ms);
long pid = reader.ReadInt64();
long threadContext = reader.ReadInt64();
short flags = reader.ReadInt16();
byte level = reader.ReadByte();
byte verbosity = reader.ReadByte();
int payloadLength = reader.ReadInt32();
StringBuilder sb = new StringBuilder();
sb.AppendLine("Guest log:");
sb.AppendLine($" Log level: {(LmLogLevel)level}");
while (ms.Position < ms.Length)
{
int type = ReadEncodedInt(reader);
int size = ReadEncodedInt(reader);
LmLogField field = (LmLogField)type;
string fieldStr = string.Empty;
if (field == LmLogField.Start)
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{
reader.ReadBytes(size);
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continue;
}
else if (field == LmLogField.Stop)
{
break;
}
else if (field == LmLogField.Line)
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{
fieldStr = $"{field}: {reader.ReadInt32()}";
}
else if (field == LmLogField.DropCount)
{
fieldStr = $"{field}: {reader.ReadInt64()}";
}
else if (field == LmLogField.Time)
{
fieldStr = $"{field}: {reader.ReadInt64()}s";
}
else if (field < LmLogField.Count)
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{
fieldStr = $"{field}: '{Encoding.UTF8.GetString(reader.ReadBytes(size)).TrimEnd()}'";
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}
else
{
fieldStr = $"Field{field}: '{Encoding.UTF8.GetString(reader.ReadBytes(size)).TrimEnd()}'";
}
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sb.AppendLine(" " + fieldStr);
}
string text = sb.ToString();
Logger.PrintGuest(LogClass.ServiceLm, text);
}
return ResultCode.Success;
}
}
}