3 hours later

2012-09-28 18:59:47 +02:00
parent adfdf963d8
commit cf100c95f1
16 changed files with 1672 additions and 10 deletions
@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace AStar
+{
+    public static class HighResolutionTime
+    {
+        #region Win32APIs
+        [System.Runtime.InteropServices.DllImport("Kernel32.dll")]
+        private static extern bool QueryPerformanceCounter(out long perfcount);
+
+        [System.Runtime.InteropServices.DllImport("Kernel32.dll")]
+        private static extern bool QueryPerformanceFrequency(out long freq);
+        #endregion
+
+        #region Variables Declaration
+        private static long mStartCounter;
+        private static long mFrequency;
+        #endregion
+
+        #region Constuctors
+        static HighResolutionTime()
+        {
+            QueryPerformanceFrequency(out mFrequency);
+        }
+        #endregion
+
+        #region Methods
+        public static void Start()
+        {
+            QueryPerformanceCounter(out mStartCounter);
+        }
+
+        public static double GetTime()
+        {
+            long endCounter;
+            QueryPerformanceCounter(out endCounter);
+            long elapsed = endCounter - mStartCounter;
+            return (double) elapsed / mFrequency;
+        }
+        #endregion
+    }
+}
+