daily update on 2024.03.18 by itload youmu

2024-03-19 02:41:04 +08:00
parent 15bf989285
commit 0c50c6282e
200 changed files with 7663 additions and 3455 deletions
@@ -0,0 +1,122 @@
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="TimeSpanProvider.cs"
+//     Project: StgSharp
+//     AuthorGroup: Nitload Space
+//     Copyright (c) Nitload Space. All rights reserved.
+//     
+//     Permission is hereby granted, free of charge, to any person 
+//     obtaining a copy of this software and associated documentation 
+//     files (the “Software”), to deal in the Software without restriction, 
+//     including without limitation the rights to use, copy, modify, merge,
+//     publish, distribute, sublicense, and/or sell copies of the Software, 
+//     and to permit persons to whom the Software is furnished to do so, 
+//     subject to the following conditions:
+//     
+//     The above copyright notice and 
+//     this permission notice shall be included in all copies 
+//     or substantial portions of the Software.
+//     
+//     THE SOFTWARE IS PROVIDED “AS IS”, 
+//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
+//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//     
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+using StgSharpDebug.Logic;
+
+using System;
+using System.Linq;
+
+namespace StgSharp
+{
+    public delegate void TimeSpanRefeshCallback();
+
+    /// <summary>
+    /// A microsecond-accuracy timer. It will refresh every a certain time span.
+    /// </summary>
+    public class TimeSpanProvider
+    {
+
+        private readonly int _maxSpanCount;
+        private TimeSpanRefeshCallback _refeshCallback;
+        private long _spanBegin;
+        private readonly long _spanLength;
+        private bool _subscribed;
+        private Counter<uint> timeSpanCount = new Counter<uint>(0, 1, 1);
+
+        /// <summary>
+        /// Create a new <see cref="TimeSpanProvider"/> and define the length of time span. Length of a single time span is defined in microseconds.
+        /// </summary>
+        /// <param name="spanLength"></param>
+        /// <parma name="provider"></parma>
+        public TimeSpanProvider(long spanLength, TimeSourceProviderBase provider)
+        {
+            _spanLength = spanLength;
+            provider.AddSubscriber(this);
+            _subscribed = true;
+        }
+        /// <summary>
+        /// Create a new <see cref="TimeSpanProvider"/> and define the length of time span. Length of a single time span is defined in microseconds.
+        /// </summary>
+        /// <param name="spanLength"></param>
+        /// <parma name="provider"></parma>
+        public TimeSpanProvider(long spanLength, uint maxSpan, TimeSourceProviderBase provider)
+        {
+            _spanLength = spanLength;
+            provider.AddSubscriber(this);
+            _subscribed = true;
+        }
+
+
+        /// <summary>
+        /// Time source provider provided in <see cref="StgSharp"/> internal framework.
+        /// </summary>
+        public static TimeSourceProviderBase DefaultProvider => StgSharpTime.OnlyInstance;
+
+        /// <summary>
+        /// The method this <see cref="TimeSpanProvider"/> will call every time a new time span started.
+        /// </summary>
+        public TimeSpanRefeshCallback SpanRefreshCallback
+        {
+            get => _refeshCallback;
+            set => _refeshCallback = value;
+        }
+
+
+        public void SubcsribeToTimeSource(TimeSourceProviderBase serviceHandler)
+        {
+            if (_subscribed)
+            {
+                return;
+            }
+            _subscribed = true;
+            serviceHandler.AddSubscriber(this);
+        }
+
+        internal bool CheckTime(long microseconds)
+        {
+            if (microseconds - _spanBegin > _spanLength)
+            {
+                _spanBegin = microseconds;
+                timeSpanCount++;
+            }
+            if (timeSpanCount > _maxSpanCount)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public static implicit operator uint(TimeSpanProvider provider)
+        {
+            return provider.timeSpanCount.Value;
+        }
+
+    }
+}