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Implement the synchronization primitives like the Horizon kernel does (#97)

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* Started to work in improving the sync primitives

* Some fixes

* Check that the mutex address matches before waking a waiting thread

* Add MutexOwner field to keep track of the thread owning the mutex, update wait list when priority changes, other tweaks

* Add new priority information to the log

* SvcSetThreadPriority should update just the WantedPriority
This commit is contained in:
gdkchan 2018-04-21 16:07:16 -03:00 • committed by GitHub
parent 267ea14cb5
commit 90279d96ea
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 577 additions and 375 deletions
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192
Ryujinx.Core/OsHle/Handles/KProcessScheduler.cs
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@ -13,17 +13,23 @@ namespace Ryujinx.Core.OsHle.Handles
{
public KThread Thread { get; private set; }
public AutoResetEvent WaitEvent { get; private set; }
public ManualResetEvent SyncWaitEvent { get; private set; }
public AutoResetEvent SchedWaitEvent { get; private set; }
public bool Active { get; set; }
public int SyncTimeout { get; set; }
public SchedulerThread(KThread Thread)
{
this.Thread = Thread;
WaitEvent = new AutoResetEvent(false);
SyncWaitEvent = new ManualResetEvent(true);
SchedWaitEvent = new AutoResetEvent(false);
Active = true;
SyncTimeout = 0;
}
public void Dispose()
@ -35,7 +41,8 @@ namespace Ryujinx.Core.OsHle.Handles
{
if (Disposing)
{
WaitEvent.Dispose();
SyncWaitEvent.Dispose();
SchedWaitEvent.Dispose();
}
}
}
@ -71,9 +78,9 @@ namespace Ryujinx.Core.OsHle.Handles
{
SchedThread = Threads[Index];
if (HighestPriority > SchedThread.Thread.Priority)
if (HighestPriority > SchedThread.Thread.ActualPriority)
{
HighestPriority = SchedThread.Thread.Priority;
HighestPriority = SchedThread.Thread.ActualPriority;
HighestPrioIndex = Index;
}
@ -194,45 +201,66 @@ namespace Ryujinx.Core.OsHle.Handles
throw new InvalidOperationException();
}
lock (SchedLock)
SchedThread.Active = Active;
UpdateSyncWaitEvent(SchedThread);
WaitIfNeeded(SchedThread);
}
public bool EnterWait(KThread Thread, int Timeout = -1)
{
if (!AllThreads.TryGetValue(Thread, out SchedulerThread SchedThread))
{
bool OldState = SchedThread.Active;
SchedThread.Active = Active;
if (!OldState && Active)
{
if (ActiveProcessors.Add(Thread.ProcessorId))
{
RunThread(SchedThread);
}
else
{
WaitingToRun[Thread.ProcessorId].Push(SchedThread);
PrintDbgThreadInfo(Thread, "entering wait state...");
}
}
else if (OldState && !Active)
{
if (Thread.Thread.IsCurrentThread())
{
Suspend(Thread.ProcessorId);
PrintDbgThreadInfo(Thread, "entering inactive wait state...");
}
else
{
WaitingToRun[Thread.ProcessorId].Remove(SchedThread);
}
}
throw new InvalidOperationException();
}
if (!Active && Thread.Thread.IsCurrentThread())
{
SchedThread.WaitEvent.WaitOne();
SchedThread.SyncTimeout = Timeout;
PrintDbgThreadInfo(Thread, "resuming execution...");
UpdateSyncWaitEvent(SchedThread);
return WaitIfNeeded(SchedThread);
}
public void WakeUp(KThread Thread)
{
if (!AllThreads.TryGetValue(Thread, out SchedulerThread SchedThread))
{
throw new InvalidOperationException();
}
SchedThread.SyncTimeout = 0;
UpdateSyncWaitEvent(SchedThread);
WaitIfNeeded(SchedThread);
}
private void UpdateSyncWaitEvent(SchedulerThread SchedThread)
{
if (SchedThread.Active && SchedThread.SyncTimeout == 0)
{
SchedThread.SyncWaitEvent.Set();
}
else
{
SchedThread.SyncWaitEvent.Reset();
}
}
private bool WaitIfNeeded(SchedulerThread SchedThread)
{
KThread Thread = SchedThread.Thread;
if (!IsActive(SchedThread) && Thread.Thread.IsCurrentThread())
{
Suspend(Thread.ProcessorId);
return Resume(Thread);
}
else
{
return false;
}
}
@ -261,66 +289,78 @@ namespace Ryujinx.Core.OsHle.Handles
lock (SchedLock)
{
SchedulerThread SchedThread = WaitingToRun[Thread.ProcessorId].Pop(Thread.Priority);
SchedulerThread SchedThread = WaitingToRun[Thread.ProcessorId].Pop(Thread.ActualPriority);
if (SchedThread == null)
if (IsActive(Thread) && SchedThread == null)
{
PrintDbgThreadInfo(Thread, "resumed because theres nothing better to run.");
return;
}
RunThread(SchedThread);
if (SchedThread != null)
{
RunThread(SchedThread);
}
}
Resume(Thread);
}
public void Resume(KThread Thread)
public bool Resume(KThread Thread)
{
if (!AllThreads.TryGetValue(Thread, out SchedulerThread SchedThread))
{
throw new InvalidOperationException();
}
TryResumingExecution(SchedThread);
return TryResumingExecution(SchedThread);
}
private void TryResumingExecution(SchedulerThread SchedThread)
private bool TryResumingExecution(SchedulerThread SchedThread)
{
KThread Thread = SchedThread.Thread;
if (SchedThread.Active)
{
lock (SchedLock)
{
if (ActiveProcessors.Add(Thread.ProcessorId))
{
PrintDbgThreadInfo(Thread, "resuming execution...");
return;
}
WaitingToRun[Thread.ProcessorId].Push(SchedThread);
PrintDbgThreadInfo(Thread, "entering wait state...");
}
}
else
if (!SchedThread.Active || SchedThread.SyncTimeout != 0)
{
PrintDbgThreadInfo(Thread, "entering inactive wait state...");
}
SchedThread.WaitEvent.WaitOne();
bool Result = false;
if (SchedThread.SyncTimeout != 0)
{
Result = SchedThread.SyncWaitEvent.WaitOne(SchedThread.SyncTimeout);
SchedThread.SyncTimeout = 0;
}
lock (SchedLock)
{
if (ActiveProcessors.Add(Thread.ProcessorId))
{
PrintDbgThreadInfo(Thread, "resuming execution...");
return Result;
}
WaitingToRun[Thread.ProcessorId].Push(SchedThread);
PrintDbgThreadInfo(Thread, "entering wait state...");
}
SchedThread.SchedWaitEvent.WaitOne();
PrintDbgThreadInfo(Thread, "resuming execution...");
return Result;
}
private void RunThread(SchedulerThread SchedThread)
{
if (!SchedThread.Thread.Thread.Execute())
{
SchedThread.WaitEvent.Set();
SchedThread.SchedWaitEvent.Set();
}
else
{
@ -328,12 +368,28 @@ namespace Ryujinx.Core.OsHle.Handles
}
}
private bool IsActive(KThread Thread)
{
if (!AllThreads.TryGetValue(Thread, out SchedulerThread SchedThread))
{
throw new InvalidOperationException();
}
return IsActive(SchedThread);
}
private bool IsActive(SchedulerThread SchedThread)
{
return SchedThread.Active && SchedThread.SyncTimeout == 0;
}
private void PrintDbgThreadInfo(KThread Thread, string Message)
{
Logging.Debug(LogClass.KernelScheduler, "(" +
"ThreadId: " + Thread.ThreadId + ", " +
"ProcessorId: " + Thread.ProcessorId + ", " +
"Priority: " + Thread.Priority + ") " + Message);
"ThreadId: " + Thread.ThreadId + ", " +
"ProcessorId: " + Thread.ProcessorId + ", " +
"ActualPriority: " + Thread.ActualPriority + ", " +
"WantedPriority: " + Thread.WantedPriority + ") " + Message);
}
public void Dispose()