Fix

Modbus.Net/Modbus.Net/FifoController.cs

@@ -27,9 +27,13 @@ namespace Modbus.Net
         ///     构造器
         /// </summary>
         /// <param name="acquireTime">间隔时间</param>
-        public FifoController(int acquireTime)
+        /// <param name="activateSema">是否开启信号量</param>
+        public FifoController(int acquireTime, bool activateSema = true)
+        {
+            if (activateSema)
             {
                 _taskCycleSema = new Semaphore(0, _waitingListMaxCount);
+            }
             AcquireTime = acquireTime;
         }
 
@@ -38,7 +42,7 @@ namespace Modbus.Net
         {
             try
             {
-                _taskCycleSema.WaitOne();
+                _taskCycleSema?.WaitOne();
                 while (!_taskCancel)
                 {
                     if (AcquireTime > 0)
@@ -62,7 +66,7 @@ namespace Modbus.Net
                             if (WaitingMessages.Count <= 0)
                             {
                                 _currentSendingPos = null;
-                                _taskCycleSema.Close();
+                                _taskCycleSema?.Close();
                                 sendSuccess = true;
                             }
                             else if (WaitingMessages.Count > WaitingMessages.IndexOf(_currentSendingPos) + 1)
@@ -75,7 +79,7 @@ namespace Modbus.Net
                     }
                     if (sendSuccess)
                     { 
-                        _taskCycleSema.WaitOne();
+                        _taskCycleSema?.WaitOne();
                     }
                 }
             }
@@ -125,7 +129,7 @@ namespace Modbus.Net
             var success = base.AddMessageToList(def);
             if (success)
             {
-                _taskCycleSema.Release();
+                _taskCycleSema?.Release();
             }
             return success;
         }

Modbus.Net/Modbus.Net/MatchController.cs

@@ -18,7 +18,8 @@ namespace Modbus.Net
         /// </summary>
         /// <param name="keyMatches">匹配字典，每个Collection代表一个匹配集合，每一个匹配集合中的数字代表需要匹配的位置，最后计算出来的数字是所有位置数字按照集合排序后叠放在一起</param>
         /// <param name="acquireTime">获取间隔</param>
-        public MatchController(ICollection<(int,int)>[] keyMatches, int acquireTime) : base(acquireTime)
+        /// <param name="activateSema">是否开启信号量</param>
+        public MatchController(ICollection<(int,int)>[] keyMatches, int acquireTime, bool activateSema = true) : base(acquireTime, activateSema)
         {
             KeyMatches = keyMatches;
         }

Modbus.Net/Modbus.Net/MatchDirectlySendController.cs

@@ -13,7 +13,7 @@ namespace Modbus.Net
     {
         /// <inheritdoc />
         public MatchDirectlySendController(ICollection<(int, int)>[] keyMatches) : base(keyMatches,
-            0)
+            0, false)
         {
         }