1 files changed, 448 insertions, 0 deletions

diff --git a/ThirdParty/SmartThreadPool/STPPerformanceCounter.cs b/ThirdParty/SmartThreadPool/STPPerformanceCounter.cs
new file mode 100644
index 0000000..bd68499
--- /dev/null
+++ b/ThirdParty/SmartThreadPool/STPPerformanceCounter.cs
@@ -0,0 +1,448 @@
+using System;
+using System.Diagnostics;
+using System.Threading;
+
+namespace Amib.Threading
+{
+    public interface ISTPPerformanceCountersReader
+    {
+        long InUseThreads { get; }
+        long ActiveThreads { get; }
+        long WorkItemsQueued { get; }
+        long WorkItemsProcessed { get; }
+    }
+}
+
+namespace Amib.Threading.Internal
+{
+    internal interface ISTPInstancePerformanceCounters : IDisposable
+    {
+        void Close();
+        void SampleThreads(long activeThreads, long inUseThreads);
+        void SampleWorkItems(long workItemsQueued, long workItemsProcessed);
+        void SampleWorkItemsWaitTime(TimeSpan workItemWaitTime);
+        void SampleWorkItemsProcessTime(TimeSpan workItemProcessTime);
+    }
+#if !(_WINDOWS_CE) && !(_SILVERLIGHT) && !(WINDOWS_PHONE)
+
+    internal enum STPPerformanceCounterType
+    {
+        // Fields
+        ActiveThreads                           = 0,
+        InUseThreads                            = 1,
+        OverheadThreads                         = 2,
+        OverheadThreadsPercent          = 3,
+        OverheadThreadsPercentBase      = 4,
+
+        WorkItems                                       = 5,
+        WorkItemsInQueue                        = 6,
+        WorkItemsProcessed                      = 7,
+
+        WorkItemsQueuedPerSecond        = 8,
+        WorkItemsProcessedPerSecond     = 9,
+
+        AvgWorkItemWaitTime                     = 10,
+        AvgWorkItemWaitTimeBase         = 11,
+
+        AvgWorkItemProcessTime          = 12,
+        AvgWorkItemProcessTimeBase      = 13,
+
+        WorkItemsGroups                         = 14,
+
+        LastCounter                                     = 14,
+    }
+
+
+    /// <summary>
+    /// Summary description for STPPerformanceCounter.
+    /// </summary>
+    internal class STPPerformanceCounter
+    {
+        // Fields
+        private readonly PerformanceCounterType _pcType;
+        protected string _counterHelp;
+        protected string _counterName;
+
+        // Methods
+        public STPPerformanceCounter(
+            string counterName,
+            string counterHelp,
+            PerformanceCounterType pcType)
+        {
+            _counterName = counterName;
+            _counterHelp = counterHelp;
+            _pcType = pcType;
+        }
+
+        public void AddCounterToCollection(CounterCreationDataCollection counterData)
+        {
+            CounterCreationData counterCreationData = new CounterCreationData(
+                _counterName,
+                _counterHelp,
+                _pcType);
+
+            counterData.Add(counterCreationData);
+        }
+
+        // Properties
+        public string Name
+        {
+            get
+            {
+                return _counterName;
+            }
+        }
+    }
+
+    internal class STPPerformanceCounters
+    {
+        // Fields
+        internal STPPerformanceCounter[] _stpPerformanceCounters;
+        private static readonly STPPerformanceCounters _instance;
+        internal const string _stpCategoryHelp = "SmartThreadPool performance counters";
+        internal const string _stpCategoryName = "SmartThreadPool";
+
+        // Methods
+        static STPPerformanceCounters()
+        {
+            _instance = new STPPerformanceCounters();
+        }
+
+        private STPPerformanceCounters()
+        {
+            STPPerformanceCounter[] stpPerformanceCounters = new STPPerformanceCounter[]
+                {
+                    new STPPerformanceCounter("Active threads", "The current number of available in the thread pool.", PerformanceCounterType.NumberOfItems32),
+                    new STPPerformanceCounter("In use threads", "The current number of threads that execute a work item.", PerformanceCounterType.NumberOfItems32),
+                    new STPPerformanceCounter("Overhead threads", "The current number of threads that are active, but are not in use.", PerformanceCounterType.NumberOfItems32),
+                    new STPPerformanceCounter("% overhead threads", "The current number of threads that are active, but are not in use in percents.", PerformanceCounterType.RawFraction),
+                    new STPPerformanceCounter("% overhead threads base", "The current number of threads that are active, but are not in use in percents.", PerformanceCounterType.RawBase),
+
+                    new STPPerformanceCounter("Work Items", "The number of work items in the Smart Thread Pool. Both queued and processed.", PerformanceCounterType.NumberOfItems32),
+                    new STPPerformanceCounter("Work Items in queue", "The current number of work items in the queue", PerformanceCounterType.NumberOfItems32),
+                    new STPPerformanceCounter("Work Items processed", "The number of work items already processed", PerformanceCounterType.NumberOfItems32),
+
+                    new STPPerformanceCounter("Work Items queued/sec", "The number of work items queued per second", PerformanceCounterType.RateOfCountsPerSecond32),
+                    new STPPerformanceCounter("Work Items processed/sec", "The number of work items processed per second", PerformanceCounterType.RateOfCountsPerSecond32),
+
+                    new STPPerformanceCounter("Avg. Work Item wait time/sec", "The average time a work item supends in the queue waiting for its turn to execute.", PerformanceCounterType.AverageCount64),
+                    new STPPerformanceCounter("Avg. Work Item wait time base", "The average time a work item supends in the queue waiting for its turn to execute.", PerformanceCounterType.AverageBase),
+
+                    new STPPerformanceCounter("Avg. Work Item process time/sec", "The average time it takes to process a work item.", PerformanceCounterType.AverageCount64),
+                    new STPPerformanceCounter("Avg. Work Item process time base", "The average time it takes to process a work item.", PerformanceCounterType.AverageBase),
+
+                    new STPPerformanceCounter("Work Items Groups", "The current number of work item groups associated with the Smart Thread Pool.", PerformanceCounterType.NumberOfItems32),
+                };
+
+            _stpPerformanceCounters = stpPerformanceCounters;
+            SetupCategory();
+        }
+
+        private void SetupCategory()
+        {
+            if (!PerformanceCounterCategory.Exists(_stpCategoryName))
+            {
+                CounterCreationDataCollection counters = new CounterCreationDataCollection();
+
+                for (int i = 0; i < _stpPerformanceCounters.Length; i++)
+                {
+                    _stpPerformanceCounters[i].AddCounterToCollection(counters);
+                }
+
+                PerformanceCounterCategory.Create(
+                    _stpCategoryName,
+                    _stpCategoryHelp,
+                    PerformanceCounterCategoryType.MultiInstance,
+                    counters);
+
+            }
+        }
+
+        // Properties
+        public static STPPerformanceCounters Instance
+        {
+            get
+            {
+                return _instance;
+            }
+        }
+     }
+
+    internal class STPInstancePerformanceCounter : IDisposable
+    {
+        // Fields
+        private bool _isDisposed;
+        private PerformanceCounter _pcs;
+
+        // Methods
+        protected STPInstancePerformanceCounter()
+        {
+            _isDisposed = false;
+        }
+
+        public STPInstancePerformanceCounter(
+            string instance,
+            STPPerformanceCounterType spcType) : this()
+        {
+            STPPerformanceCounters counters = STPPerformanceCounters.Instance;
+            _pcs = new PerformanceCounter(
+                STPPerformanceCounters._stpCategoryName,
+                counters._stpPerformanceCounters[(int) spcType].Name,
+                instance,
+                false);
+            _pcs.RawValue = _pcs.RawValue;
+        }
+
+
+        public void Close()
+        {
+            if (_pcs != null)
+            {
+                _pcs.RemoveInstance();
+                _pcs.Close();
+                _pcs = null;
+            }
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+
+        public virtual void Dispose(bool disposing)
+        {
+            if (!_isDisposed)
+            {
+                if (disposing)
+                {
+                    Close();
+                }
+            }
+            _isDisposed = true;
+        }
+
+        public virtual void Increment()
+        {
+            _pcs.Increment();
+        }
+
+        public virtual void IncrementBy(long val)
+        {
+            _pcs.IncrementBy(val);
+        }
+
+        public virtual void Set(long val)
+        {
+            _pcs.RawValue = val;
+        }
+    }
+
+    internal class STPInstanceNullPerformanceCounter : STPInstancePerformanceCounter
+    {
+        // Methods
+        public override void Increment() {}
+        public override void IncrementBy(long value) {}
+        public override void Set(long val) {}
+    }
+
+
+
+    internal class STPInstancePerformanceCounters : ISTPInstancePerformanceCounters
+    {
+        private bool _isDisposed;
+        // Fields
+        private STPInstancePerformanceCounter[] _pcs;
+        private static readonly STPInstancePerformanceCounter _stpInstanceNullPerformanceCounter;
+
+        // Methods
+        static STPInstancePerformanceCounters()
+        {
+            _stpInstanceNullPerformanceCounter = new STPInstanceNullPerformanceCounter();
+        }
+
+        public STPInstancePerformanceCounters(string instance)
+        {
+            _isDisposed = false;
+            _pcs = new STPInstancePerformanceCounter[(int)STPPerformanceCounterType.LastCounter];
+
+            // Call the STPPerformanceCounters.Instance so the static constructor will
+            // intialize the STPPerformanceCounters singleton.
+            STPPerformanceCounters.Instance.GetHashCode();
+
+            for (int i = 0; i < _pcs.Length; i++)
+            {
+                if (instance != null)
+                {
+                    _pcs[i] = new STPInstancePerformanceCounter(
+                        instance,
+                        (STPPerformanceCounterType) i);
+                }
+                else
+                {
+                    _pcs[i] = _stpInstanceNullPerformanceCounter;
+                }
+            }
+        }
+
+
+        public void Close()
+        {
+            if (null != _pcs)
+            {
+                for (int i = 0; i < _pcs.Length; i++)
+                {
+                    if (null != _pcs[i])
+                    {
+                        _pcs[i].Dispose();
+                    }
+                }
+                _pcs = null;
+            }
+        }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+
+        public virtual void Dispose(bool disposing)
+        {
+            if (!_isDisposed)
+            {
+                if (disposing)
+                {
+                    Close();
+                }
+            }
+            _isDisposed = true;
+        }
+
+        private STPInstancePerformanceCounter GetCounter(STPPerformanceCounterType spcType)
+        {
+            return _pcs[(int) spcType];
+        }
+
+        public void SampleThreads(long activeThreads, long inUseThreads)
+        {
+            GetCounter(STPPerformanceCounterType.ActiveThreads).Set(activeThreads);
+            GetCounter(STPPerformanceCounterType.InUseThreads).Set(inUseThreads);
+            GetCounter(STPPerformanceCounterType.OverheadThreads).Set(activeThreads-inUseThreads);
+
+            GetCounter(STPPerformanceCounterType.OverheadThreadsPercentBase).Set(activeThreads-inUseThreads);
+            GetCounter(STPPerformanceCounterType.OverheadThreadsPercent).Set(inUseThreads);
+        }
+
+        public void SampleWorkItems(long workItemsQueued, long workItemsProcessed)
+        {
+            GetCounter(STPPerformanceCounterType.WorkItems).Set(workItemsQueued+workItemsProcessed);
+            GetCounter(STPPerformanceCounterType.WorkItemsInQueue).Set(workItemsQueued);
+            GetCounter(STPPerformanceCounterType.WorkItemsProcessed).Set(workItemsProcessed);
+
+            GetCounter(STPPerformanceCounterType.WorkItemsQueuedPerSecond).Set(workItemsQueued);
+            GetCounter(STPPerformanceCounterType.WorkItemsProcessedPerSecond).Set(workItemsProcessed);
+        }
+
+        public void SampleWorkItemsWaitTime(TimeSpan workItemWaitTime)
+        {
+            GetCounter(STPPerformanceCounterType.AvgWorkItemWaitTime).IncrementBy((long)workItemWaitTime.TotalMilliseconds);
+            GetCounter(STPPerformanceCounterType.AvgWorkItemWaitTimeBase).Increment();
+        }
+
+        public void SampleWorkItemsProcessTime(TimeSpan workItemProcessTime)
+        {
+            GetCounter(STPPerformanceCounterType.AvgWorkItemProcessTime).IncrementBy((long)workItemProcessTime.TotalMilliseconds);
+            GetCounter(STPPerformanceCounterType.AvgWorkItemProcessTimeBase).Increment();
+        }
+    }
+#endif
+
+    internal class NullSTPInstancePerformanceCounters : ISTPInstancePerformanceCounters, ISTPPerformanceCountersReader
+    {
+        private static readonly NullSTPInstancePerformanceCounters _instance = new NullSTPInstancePerformanceCounters();
+
+        public static NullSTPInstancePerformanceCounters Instance
+        {
+            get { return _instance; }
+        }
+
+         public void Close() {}
+        public void Dispose() {}
+
+        public void SampleThreads(long activeThreads, long inUseThreads) {}
+        public void SampleWorkItems(long workItemsQueued, long workItemsProcessed) {}
+        public void SampleWorkItemsWaitTime(TimeSpan workItemWaitTime) {}
+        public void SampleWorkItemsProcessTime(TimeSpan workItemProcessTime) {}
+        public long InUseThreads
+        {
+            get { return 0; }
+        }
+
+        public long ActiveThreads
+        {
+            get { return 0; }
+        }
+
+        public long WorkItemsQueued
+        {
+            get { return 0; }
+        }
+
+        public long WorkItemsProcessed
+        {
+            get { return 0; }
+        }
+    }
+
+    internal class LocalSTPInstancePerformanceCounters : ISTPInstancePerformanceCounters, ISTPPerformanceCountersReader
+    {
+        public void Close() { }
+        public void Dispose() { }
+
+        private long _activeThreads;
+        private long _inUseThreads;
+        private long _workItemsQueued;
+        private long _workItemsProcessed;
+
+        public long InUseThreads
+        {
+            get { return _inUseThreads; }
+        }
+
+        public long ActiveThreads
+        {
+            get { return _activeThreads; }
+        }
+
+        public long WorkItemsQueued
+        {
+            get { return _workItemsQueued; }
+        }
+
+        public long WorkItemsProcessed
+        {
+            get { return _workItemsProcessed; }
+        }
+
+        public void SampleThreads(long activeThreads, long inUseThreads)
+        {
+            _activeThreads = activeThreads;
+            _inUseThreads = inUseThreads;
+        }
+
+        public void SampleWorkItems(long workItemsQueued, long workItemsProcessed)
+        {
+            _workItemsQueued = workItemsQueued;
+            _workItemsProcessed = workItemsProcessed;
+        }
+
+        public void SampleWorkItemsWaitTime(TimeSpan workItemWaitTime)
+        {
+            // Not supported
+        }
+
+        public void SampleWorkItemsProcessTime(TimeSpan workItemProcessTime)
+        {
+            // Not supported
+        }
+    }
+}