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Improve kernel WaitSynchronization syscall implementation (#1362)

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gdkchan 2020-07-17 01:22:13 -03:00 • committed by GitHub
parent 88619d71b8
commit 20774dab14
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4 changed files with 81 additions and 16 deletions
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83
Ryujinx.HLE/HOS/Kernel/SupervisorCall/Syscall.cs
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@ -8,6 +8,7 @@ using Ryujinx.HLE.HOS.Kernel.Ipc;
using Ryujinx.HLE.HOS.Kernel.Memory;
using Ryujinx.HLE.HOS.Kernel.Process;
using Ryujinx.HLE.HOS.Kernel.Threading;
using System;
using System.Collections.Generic;
using System.Threading;
@ -2139,30 +2140,84 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
{
handleIndex = 0;
if ((uint)handlesCount > 0x40)
if ((uint)handlesCount > KThread.MaxWaitSyncObjects)
{
return KernelResult.MaximumExceeded;
}
List<KSynchronizationObject> syncObjs = new List<KSynchronizationObject>();
KThread currentThread = _context.Scheduler.GetCurrentThread();
KProcess process = _context.Scheduler.GetCurrentProcess();
var syncObjs = new Span<KSynchronizationObject>(currentThread.WaitSyncObjects).Slice(0, handlesCount);
if (handlesCount != 0)
{
KProcess currentProcess = _context.Scheduler.GetCurrentProcess();
if (currentProcess.MemoryManager.AddrSpaceStart > handlesPtr)
{
return KernelResult.UserCopyFailed;
}
long handlesSize = handlesCount * 4;
if (handlesPtr + (ulong)handlesSize <= handlesPtr)
{
return KernelResult.UserCopyFailed;
}
if (handlesPtr + (ulong)handlesSize - 1 > currentProcess.MemoryManager.AddrSpaceEnd - 1)
{
return KernelResult.UserCopyFailed;
}
Span<int> handles = new Span<int>(currentThread.WaitSyncHandles).Slice(0, handlesCount);
if (!KernelTransfer.UserToKernelInt32Array(_context, handlesPtr, handles))
{
return KernelResult.UserCopyFailed;
}
int processedHandles = 0;
for (; processedHandles < handlesCount; processedHandles++)
{
KSynchronizationObject syncObj = currentProcess.HandleTable.GetObject<KSynchronizationObject>(handles[processedHandles]);
if (syncObj == null)
{
break;
}
syncObjs[processedHandles] = syncObj;
syncObj.IncrementReferenceCount();
}
if (processedHandles != handlesCount)
{
// One or more handles are invalid.
for (int index = 0; index < processedHandles; index++)
{
currentThread.WaitSyncObjects[index].DecrementReferenceCount();
}
return KernelResult.InvalidHandle;
}
}
KernelResult result = _context.Synchronization.WaitFor(syncObjs, timeout, out handleIndex);
if (result == KernelResult.PortRemoteClosed)
{
result = KernelResult.Success;
}
for (int index = 0; index < handlesCount; index++)
{
int handle = process.CpuMemory.Read<int>(handlesPtr + (ulong)index * 4);
KSynchronizationObject syncObj = process.HandleTable.GetObject<KSynchronizationObject>(handle);
if (syncObj == null)
{
break;
}
syncObjs.Add(syncObj);
currentThread.WaitSyncObjects[index].DecrementReferenceCount();
}
return _context.Synchronization.WaitFor(syncObjs.ToArray(), timeout, out handleIndex);
return result;
}
public KernelResult CancelSynchronization(int handle)