1 files changed, 352 insertions, 0 deletions

diff --git a/ThirdParty/SmartThreadPool/STPPerformanceCounter.cs b/ThirdParty/SmartThreadPool/STPPerformanceCounter.cs
new file mode 100644
index 0000000..be70aea
--- /dev/null
+++ b/ThirdParty/SmartThreadPool/STPPerformanceCounter.cs
@@ -0,0 +1,352 @@
+using System;
+using System.Diagnostics;
+
+namespace Amib.Threading.Internal
+{
+    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 PerformanceCounterType _pcType;
+        protected string _counterHelp;
+        protected string _counterName;
+
+        // Methods
+        public STPPerformanceCounter(
+            string counterName, 
+            string counterHelp, 
+            PerformanceCounterType pcType)
+        {
+            this._counterName = counterName;
+            this._counterHelp = counterHelp;
+            this._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 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);
+                }
+
+
+                // *********** Remark for .NET 2.0 ***********
+                // If you are here, it means you got the warning that this overload
+                // of the method is deprecated in .NET 2.0. To use the correct 
+                // method overload, uncomment the third argument of the method.
+                PerformanceCounterCategory.Create(
+                    _stpCategoryName, 
+                    _stpCategoryHelp, 
+                    //PerformanceCounterCategoryType.MultiInstance,
+                    counters);
+                    
+            }
+        }
+ 
+        // Properties
+        public static STPPerformanceCounters Instance
+        {
+            get
+            {
+                return _instance;
+            }
+        }
+     }
+
+    internal class STPInstancePerformanceCounter : IDisposable
+    {
+        // Fields
+        private PerformanceCounter _pcs;
+
+        // Methods
+        protected STPInstancePerformanceCounter()
+        {
+        }
+
+        public STPInstancePerformanceCounter(
+            string instance, 
+            STPPerformanceCounterType spcType)
+        {
+            STPPerformanceCounters counters = STPPerformanceCounters.Instance;
+            _pcs = new PerformanceCounter(
+                STPPerformanceCounters._stpCategoryName, 
+                counters._stpPerformanceCounters[(int) spcType].Name, 
+                instance, 
+                false);
+            _pcs.RawValue = _pcs.RawValue;
+        }
+
+        ~STPInstancePerformanceCounter()
+        {
+            Close();
+        }
+
+        public void Close()
+        {
+            if (_pcs != null)
+            {
+                _pcs.RemoveInstance();
+                _pcs.Close();
+                _pcs = null;
+            }
+        }
+ 
+        public void Dispose()
+        {
+            Close();
+            GC.SuppressFinalize(this);
+        }
+ 
+        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 STPInstanceNullPerformanceCounter() {}
+        public override void Increment() {}
+        public override void IncrementBy(long value) {}
+        public override void Set(long val) {}
+    }
+        
+    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);
+    }
+
+
+    internal class STPInstancePerformanceCounters : ISTPInstancePerformanceCounters, IDisposable
+    {
+        // Fields
+        private STPInstancePerformanceCounter[] _pcs;
+        private static STPInstancePerformanceCounter _stpInstanceNullPerformanceCounter;
+
+        // Methods
+        static STPInstancePerformanceCounters()
+        {
+            _stpInstanceNullPerformanceCounter = new STPInstanceNullPerformanceCounter();
+        }
+ 
+        public STPInstancePerformanceCounters(string instance)
+        {
+            _pcs = new STPInstancePerformanceCounter[(int)STPPerformanceCounterType.LastCounter];
+            STPPerformanceCounters counters = STPPerformanceCounters.Instance;
+            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].Close();
+                    }
+                }
+                _pcs = null;
+            }
+        }
+
+        ~STPInstancePerformanceCounters()
+        {
+            Close();
+        }
+
+        public void Dispose()
+        {
+            Close();
+            GC.SuppressFinalize(this);
+        }
+ 
+        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();
+        }
+    }
+
+    internal class NullSTPInstancePerformanceCounters : ISTPInstancePerformanceCounters, IDisposable
+    {
+        static NullSTPInstancePerformanceCounters()
+        {
+        }
+
+        private static NullSTPInstancePerformanceCounters _instance = new NullSTPInstancePerformanceCounters(null);
+
+        public static NullSTPInstancePerformanceCounters Instance
+        {
+            get { return _instance; }
+        }
+
+        public NullSTPInstancePerformanceCounters(string 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) {}
+    }
+
+}