X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=Novacoin%2FInterop.cs;h=55979d714e103777f76978973329f8dbacea8d80;hb=eb39142ad873e102405ceffb5ec837b510da9096;hp=f0b2c9396404915d77e937f75f0861b8f550598f;hpb=4426ee1dc8ae6733d46b5413d3bce28333792d22;p=NovacoinLibrary.git

diff --git a/Novacoin/Interop.cs b/Novacoin/Interop.cs
index f0b2c93..55979d7 100644
--- a/Novacoin/Interop.cs
+++ b/Novacoin/Interop.cs
@@ -18,141 +18,97 @@
 
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Text;
 
 namespace Novacoin
 {
-    public class InteropException : Exception
-    {
-        public InteropException()
-        {
-        }
-
-        public InteropException(string message)
-            : base(message)
-        {
-        }
-
-        public InteropException(string message, Exception inner)
-            : base(message, inner)
-        {
-        }
-    }
-
+    /// <summary>
+    /// Miscellaneous functions
+    /// </summary>
     public class Interop
     {
-        public static byte[] ReverseBytes(byte[] source)
-        {
-            byte[] b = new byte[source.Length];
-
-            source.CopyTo(b, 0);
-
-            Array.Reverse(b);
-
-            return b;
-        }
-
+        /// <summary>
+        /// Convert array of unsigned integers to array of bytes.
+        /// </summary>
+        /// <param name="values">Array of unsigned integer values.</param>
+        /// <returns>Byte array</returns>
         public static byte[] LEBytes(uint[] values)
         {
-            byte[] result = new byte[values.Length * sizeof(uint)];
+            var result = new byte[values.Length * sizeof(uint)];
             Buffer.BlockCopy(values, 0, result, 0, result.Length);
 
             return result;
         }
 
+        /// <summary>
+        /// Convert byte array to array of unsigned integers.
+        /// </summary>
+        /// <param name="bytes">Byte array.</param>
+        /// <returns>Array of integers</returns>
         public static uint[] ToUInt32Array(byte[] bytes)
         {
-            uint[] result = new uint[bytes.Length / sizeof(uint)];
+            var result = new uint[bytes.Length / sizeof(uint)];
             Buffer.BlockCopy(bytes, 0, result, 0, bytes.Length);
 
             return result;
         }
 
-        public static byte[] BEBytes(ushort n)
+        /// <summary>
+        /// Reverse byte array
+        /// </summary>
+        /// <param name="source">Source array</param>
+        /// <returns>Result array</returns>
+        public static byte[] ReverseBytes(byte[] source)
         {
-            byte[] resultBytes = BitConverter.GetBytes(n);
-
-            Array.Reverse(resultBytes);
-
-            return resultBytes;
-        }
+            var b = new byte[source.Length];
 
-        public static byte[] BEBytes(uint n)
-        {
-            byte[] resultBytes = BitConverter.GetBytes(n);
+            source.CopyTo(b, 0);
 
-            Array.Reverse(resultBytes);
+            Array.Reverse(b);
 
-            return resultBytes;
+            return b;
         }
 
-        public static byte[] BEBytes(ulong n)
+        public static byte[] HexToArray(string hex)
         {
-            byte[] resultBytes = BitConverter.GetBytes(n);
-
-            Array.Reverse(resultBytes);
-
-            return resultBytes;
-        }
+            int nChars = hex.Length;
+            var bytes = new byte[nChars / 2];
 
-
-        public static ushort BEBytesToUInt16(byte[] bytes)
-        {
-            if (bytes.Length != sizeof(ushort))
+            for (int i = 0; i < nChars; i += 2)
             {
-                throw new InteropException("Array size doesn't match the ushort data type.");
+                bytes[i / 2] = Convert.ToByte(hex.Substring(i, 2), 16);
             }
 
-            Array.Reverse(bytes);
-
-            return BitConverter.ToUInt16(bytes, 0);
+            return bytes;
         }
 
-        public static uint BEBytesToUInt32(byte[] bytes)
+        public static byte[] TrimArray(byte[] bytes)
         {
-            if (bytes.Length != sizeof(uint))
+            int trimStart = bytes.Length - 1;
+            while (trimStart >= 0 && bytes[trimStart] == 0)
             {
-                throw new InteropException("Array size doesn't match the uint data type.");
+                trimStart--;
             }
 
-            Array.Reverse(bytes);
+            byte[] result = new byte[trimStart + 1];
+            Array.Copy(bytes, 0, result, 0, trimStart + 1);
 
-            return BitConverter.ToUInt32(bytes, 0);
+            return result;
         }
 
-        public static ulong BEBytesToUInt64(byte[] bytes)
+        public static string ToHex(byte[] bytes)
         {
-            if (bytes.Length != sizeof(ulong))
+            var sb = new StringBuilder();
+            foreach (var b in bytes)
             {
-                throw new InteropException("Array size doesn't match the ulong data type.");
+                sb.AppendFormat("{0:x2}", b);
             }
-
-            Array.Reverse(bytes);
-
-            return BitConverter.ToUInt64(bytes, 0);
-        }
-
-        public static IEnumerable<byte> HexToEnumerable(string hex)
-        {
-            return Enumerable.Range(0, hex.Length)
-                             .Where(x => x % 2 == 0)
-                             .Select(x => Convert.ToByte(hex.Substring(x, 2), 16));
-        }
-
-        public static IList<byte> HexToList(string hex)
-        {
-            return HexToEnumerable(hex).ToList();
+            return sb.ToString();
         }
 
-        public static string ToHex(IEnumerable<byte> bytes)
+        public static uint GetTime()
         {
-            StringBuilder sb = new StringBuilder();
-            foreach (byte b in bytes)
-            {
-                sb.AppendFormat("{0:x2}", b);
-            }
-            return sb.ToString();
+            return (uint)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds;
         }
     }
 }