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using Ryujinx.Common.Logging;
using Ryujinx.Common.Memory;
using Ryujinx.Horizon.Common;
using Ryujinx.Horizon.LogManager.Types;
using Ryujinx.Horizon.Sdk.Lm;
using Ryujinx.Horizon.Sdk.Sf;
using Ryujinx.Horizon.Sdk.Sf.Hipc;
using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
namespace Ryujinx.Horizon.LogManager.Ipc
{
partial class LmLogger : ILmLogger
{
private const int MessageLengthLimit = 5000;
private readonly LogService _log;
private readonly ulong _pid;
private LogPacket _logPacket;
public LmLogger(LogService log, ulong pid)
{
_log = log;
_pid = pid;
_logPacket = new LogPacket();
}
[CmifCommand(0)]
public Result Log([Buffer(HipcBufferFlags.In | HipcBufferFlags.AutoSelect)] Span<byte> message)
{
if (!SetProcessId(message, _pid))
{
return Result.Success;
}
if (LogImpl(message))
{
Logger.Guest?.Print(LogClass.ServiceLm, _logPacket.ToString());
_logPacket = new LogPacket();
}
return Result.Success;
}
[CmifCommand(1)] // 3.0.0+
public Result SetDestination(LogDestination destination)
{
_log.LogDestination = destination;
return Result.Success;
}
private static bool SetProcessId(Span<byte> message, ulong processId)
{
ref LogPacketHeader header = ref MemoryMarshal.Cast<byte, LogPacketHeader>(message)[0];
uint expectedMessageSize = (uint)Unsafe.SizeOf<LogPacketHeader>() + header.PayloadSize;
if (expectedMessageSize != (uint)message.Length)
{
Logger.Warning?.Print(LogClass.ServiceLm, $"Invalid message size (expected 0x{expectedMessageSize:X} but got 0x{message.Length:X}).");
return false;
}
header.ProcessId = processId;
return true;
}
private bool LogImpl(ReadOnlySpan<byte> message)
{
SpanReader reader = new(message);
if (!reader.TryRead(out LogPacketHeader header))
{
return true;
}
bool isHeadPacket = (header.Flags & LogPacketFlags.IsHead) != 0;
bool isTailPacket = (header.Flags & LogPacketFlags.IsTail) != 0;
_logPacket.Severity = header.Severity;
while (reader.Length > 0)
{
if (!TryReadUleb128(ref reader, out int type) || !TryReadUleb128(ref reader, out int size))
{
return true;
}
LogDataChunkKey key = (LogDataChunkKey)type;
if (key == LogDataChunkKey.Start)
{
reader.Skip(size);
continue;
}
else if (key == LogDataChunkKey.Stop)
{
break;
}
else if (key == LogDataChunkKey.Line)
{
if (!reader.TryRead<int>(out _logPacket.Line))
{
return true;
}
}
else if (key == LogDataChunkKey.DropCount)
{
if (!reader.TryRead<long>(out _logPacket.DropCount))
{
return true;
}
}
else if (key == LogDataChunkKey.Time)
{
if (!reader.TryRead<long>(out _logPacket.Time))
{
return true;
}
}
else if (key == LogDataChunkKey.Message)
{
string text = Encoding.UTF8.GetString(reader.GetSpanSafe(size)).TrimEnd();
if (isHeadPacket && isTailPacket)
{
_logPacket.Message = text;
}
else
{
_logPacket.Message += text;
if (_logPacket.Message.Length >= MessageLengthLimit)
{
isTailPacket = true;
}
}
}
else if (key == LogDataChunkKey.Filename)
{
_logPacket.Filename = Encoding.UTF8.GetString(reader.GetSpanSafe(size)).TrimEnd();
}
else if (key == LogDataChunkKey.Function)
{
_logPacket.Function = Encoding.UTF8.GetString(reader.GetSpanSafe(size)).TrimEnd();
}
else if (key == LogDataChunkKey.Module)
{
_logPacket.Module = Encoding.UTF8.GetString(reader.GetSpanSafe(size)).TrimEnd();
}
else if (key == LogDataChunkKey.Thread)
{
_logPacket.Thread = Encoding.UTF8.GetString(reader.GetSpanSafe(size)).TrimEnd();
}
else if (key == LogDataChunkKey.ProgramName)
{
_logPacket.ProgramName = Encoding.UTF8.GetString(reader.GetSpanSafe(size)).TrimEnd();
}
}
return isTailPacket;
}
private static bool TryReadUleb128(ref SpanReader reader, out int result)
{
result = 0;
int count = 0;
byte encoded;
do
{
if (!reader.TryRead<byte>(out encoded))
{
return false;
}
result += (encoded & 0x7F) << (7 * count);
count++;
} while ((encoded & 0x80) != 0);
return true;
}
}
}
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