Marc Hernandez
1fd02d1460
x) Add new logging events for GC and ThreadPoolWorkerThread x) Implement method to extract method information from TraceEvent x) Enhance log details display for specific event types x) Improve time header format in log messages x) Refactor verbose logging messages to include type friendly names
890 lines
28 KiB
C#
890 lines
28 KiB
C#
// Copyright (c) Xenko contributors (https://xenko.com) and Silicon Studio Corp. (https://www.siliconstudio.co.jp)
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// Distributed under the MIT license. See the LICENSE.md file in the project root for more information.
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//
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// Copyright (c) 2010-2012 SharpDX - Alexandre Mutel
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#pragma warning disable SA1405 // Debug.Assert must provide message text
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using att;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Security;
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using System.Text;
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using System.Threading;
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namespace lib
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{
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/// <summary>
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/// Utility class.
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/// </summary>
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public static class Util
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{
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/*
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public static string StringJoin( string separator, IEnumerable<object> collectionToConvert )
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{
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return String.Join(separator, collectionToConvert.Select(o => o.ToString()));
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}
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public static string FriendlyName(this Type type)
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{
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if (type.IsGenericType)
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{
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var namePrefix = type.Name.Split(new [] {'`'}, StringSplitOptions.RemoveEmptyEntries)[0];
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var genericParameters = StringJoin( ", ", type.GetGenericArguments() );
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return namePrefix + "<" + genericParameters + ">";
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}
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return type.Name;
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}
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*/
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public static string ToString<T>(this IEnumerable<T> collectionToConvert, string separator)
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{
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return String.Join(separator, collectionToConvert.Select(o => o.ToString()));
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}
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public static string FriendlyName(this Type type)
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{
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if (type.IsGenericType)
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{
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var namePrefix = type.Name.Split(new [] {'`'}, StringSplitOptions.RemoveEmptyEntries)[0];
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var genericParameters = type.GetGenericArguments().ToString( ", ") ;
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return namePrefix + "<" + genericParameters + ">";
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}
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return type.Name;
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}
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/*
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#if XENKO_PLATFORM_UWP
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public static unsafe void CopyMemory(IntPtr dest, IntPtr src, int sizeInBytesToCopy)
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{
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Interop.memcpy((void*)dest, (void*)src, sizeInBytesToCopy);
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}
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#else
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#if XENKO_PLATFORM_WINDOWS_DESKTOP
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private const string MemcpyDll = "msvcrt.dll";
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#elif XENKO_PLATFORM_ANDROID
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private const string MemcpyDll = "libc.so";
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#elif XENKO_PLATFORM_UNIX
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// We do not specifiy the .so extension as libc.so on Linux
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// is actually not a .so files but a script. Using just libc
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// will automatically find the corresponding .so.
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private const string MemcpyDll = "libc";
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#elif XENKO_PLATFORM_IOS
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private const string MemcpyDll = ObjCRuntime.Constants.SystemLibrary;
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#else
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# error Unsupported platform
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#endif
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[DllImport(MemcpyDll, EntryPoint = "memcpy", CallingConvention = CallingConvention.Cdecl, SetLastError = false)]
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#if !XENKO_RUNTIME_CORECLR
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[SuppressUnmanagedCodeSecurity]
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#endif
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private static extern IntPtr CopyMemory(IntPtr dest, IntPtr src, ulong sizeInBytesToCopy);
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/// <summary>
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/// Copy memory.
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/// </summary>
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/// <param name="dest">The destination memory location</param>
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/// <param name="src">The source memory location.</param>
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/// <param name="sizeInBytesToCopy">The count.</param>
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public static void CopyMemory(IntPtr dest, IntPtr src, int sizeInBytesToCopy)
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{
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CopyMemory(dest, src, (ulong)sizeInBytesToCopy);
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}
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#endif
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*/
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public static void checkAndAddDirectory( string path )
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{
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if( !Directory.Exists( path ) )
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{
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log.info( $"Creating directory {path}" );
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Directory.CreateDirectory( path );
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}
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else
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{
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log.debug( $"{path} already exists." );
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}
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}
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/// <summary>
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/// Compares two block of memory.
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/// </summary>
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/// <param name="from">The pointer to compare from.</param>
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/// <param name="against">The pointer to compare against.</param>
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/// <param name="sizeToCompare">The size in bytes to compare.</param>
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/// <returns>True if the buffers are equivalent, false otherwise.</returns>
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public static unsafe bool CompareMemory( IntPtr from, IntPtr against, int sizeToCompare )
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{
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var pSrc = (byte*)from;
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var pDst = (byte*)against;
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// Compare 8 bytes.
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var numberOf = sizeToCompare >> 3;
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while( numberOf > 0 )
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{
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if( *(long*)pSrc != *(long*)pDst )
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return false;
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pSrc += 8;
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pDst += 8;
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numberOf--;
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}
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// Compare remaining bytes.
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numberOf = sizeToCompare & 7;
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while( numberOf > 0 )
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{
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if( *pSrc != *pDst )
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return false;
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pSrc++;
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pDst++;
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numberOf--;
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}
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return true;
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}
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/// <summary>
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/// Clears the memory.
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/// </summary>
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/// <param name="dest">The dest.</param>
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/// <param name="value">The value.</param>
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/// <param name="sizeInBytesToClear">The size in bytes to clear.</param>
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public static void ClearMemory( IntPtr dest, byte value, int sizeInBytesToClear )
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{
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unsafe
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{
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Interop.memset( (void*)dest, value, sizeInBytesToClear );
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}
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}
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/// <summary>
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/// Return the sizeof a struct from a CLR. Equivalent to sizeof operator but works on generics too.
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/// </summary>
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/// <typeparam name="T">a struct to evaluate</typeparam>
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/// <returns>sizeof this struct</returns>
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public static int SizeOf<T>() where T : struct
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{
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return Interop.SizeOf<T>();
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}
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/// <summary>
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/// Return the sizeof an array of struct. Equivalent to sizeof operator but works on generics too.
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/// </summary>
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/// <typeparam name="T">a struct</typeparam>
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/// <param name="array">The array of struct to evaluate.</param>
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/// <returns>sizeof in bytes of this array of struct</returns>
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public static int SizeOf<T>( T[] array ) where T : struct
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{
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return array == null ? 0 : array.Length * Interop.SizeOf<T>();
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}
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/// <summary>
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/// Pins the specified source and call an action with the pinned pointer.
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/// </summary>
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/// <typeparam name="T">The type of the structure to pin</typeparam>
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/// <param name="source">The source.</param>
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/// <param name="pinAction">The pin action to perform on the pinned pointer.</param>
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public static void Pin<T>( ref T source, Action<IntPtr> pinAction ) where T : struct
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{
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unsafe
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{
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pinAction( (IntPtr)Interop.Fixed( ref source ) );
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}
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}
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/// <summary>
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/// Pins the specified source and call an action with the pinned pointer.
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/// </summary>
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/// <typeparam name="T">The type of the structure to pin</typeparam>
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/// <param name="source">The source array.</param>
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/// <param name="pinAction">The pin action to perform on the pinned pointer.</param>
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public static void Pin<T>( T[] source, [NotNull] Action<IntPtr> pinAction ) where T : struct
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{
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unsafe
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{
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pinAction( source == null ? IntPtr.Zero : (IntPtr)Interop.Fixed( source ) );
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}
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}
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/// <summary>
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/// Covnerts a structured array to an equivalent byte array.
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/// </summary>
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/// <param name="source">The source.</param>
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/// <returns>The byte array.</returns>
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public static byte[] ToByteArray<T>( T[] source ) where T : struct
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{
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if( source == null )
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return null;
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var buffer = new byte[SizeOf<T>() * source.Length];
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if( source.Length == 0 )
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return buffer;
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unsafe
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{
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fixed( void* pBuffer = buffer )
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Interop.Write( pBuffer, source, 0, source.Length );
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}
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return buffer;
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}
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/// <summary>
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/// Reads the specified T data from a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to read</typeparam>
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/// <param name="source">Memory location to read from.</param>
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/// <returns>The data read from the memory location</returns>
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public static T Read<T>( IntPtr source ) where T : struct
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{
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unsafe
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{
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return Interop.ReadInline<T>( (void*)source );
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}
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}
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/// <summary>
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/// Reads the specified T data from a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to read</typeparam>
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/// <param name="source">Memory location to read from.</param>
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/// <param name="data">The data write to.</param>
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[MethodImpl( MethodImplOptions.AggressiveInlining )]
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public static void Read<T>( IntPtr source, ref T data ) where T : struct
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{
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unsafe
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{
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Interop.CopyInline( ref data, (void*)source );
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}
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}
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/// <summary>
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/// Reads the specified T data from a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to read</typeparam>
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/// <param name="source">Memory location to read from.</param>
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/// <param name="data">The data write to.</param>
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public static void ReadOut<T>( IntPtr source, out T data ) where T : struct
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{
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unsafe
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{
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Interop.CopyInlineOut( out data, (void*)source );
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}
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}
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/// <summary>
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/// Reads the specified T data from a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to read</typeparam>
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/// <param name="source">Memory location to read from.</param>
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/// <param name="data">The data write to.</param>
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/// <returns>source pointer + sizeof(T)</returns>
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public static IntPtr ReadAndPosition<T>( IntPtr source, ref T data ) where T : struct
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{
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unsafe
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{
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return (IntPtr)Interop.Read( (void*)source, ref data );
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}
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}
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/// <summary>
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/// Reads the specified array T[] data from a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to read</typeparam>
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/// <param name="source">Memory location to read from.</param>
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/// <param name="data">The data write to.</param>
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/// <param name="offset">The offset in the array to write to.</param>
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/// <param name="count">The number of T element to read from the memory location</param>
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/// <returns>source pointer + sizeof(T) * count</returns>
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public static IntPtr Read<T>( IntPtr source, T[] data, int offset, int count ) where T : struct
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{
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unsafe
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{
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return (IntPtr)Interop.Read( (void*)source, data, offset, count );
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}
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}
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/// <summary>
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/// Writes the specified T data to a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to write</typeparam>
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/// <param name="destination">Memory location to write to.</param>
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/// <param name="data">The data to write.</param>
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[MethodImpl( MethodImplOptions.AggressiveInlining )]
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public static void Write<T>( IntPtr destination, ref T data ) where T : struct
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{
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unsafe
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{
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Interop.CopyInline( (void*)destination, ref data );
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}
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}
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/// <summary>
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/// Writes the specified T data to a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to write</typeparam>
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/// <param name="destination">Memory location to write to.</param>
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/// <param name="data">The data to write.</param>
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/// <returns>destination pointer + sizeof(T)</returns>
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public static IntPtr WriteAndPosition<T>( IntPtr destination, ref T data ) where T : struct
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{
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unsafe
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{
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return (IntPtr)Interop.Write( (void*)destination, ref data );
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}
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}
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/// <summary>
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/// Writes the specified array T[] data to a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to write</typeparam>
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/// <param name="destination">Memory location to write to.</param>
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/// <param name="data">The array of T data to write.</param>
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/// <param name="offset">The offset in the array to read from.</param>
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/// <param name="count">The number of T element to write to the memory location</param>
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public static void Write<T>( byte[] destination, T[] data, int offset, int count ) where T : struct
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{
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unsafe
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{
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fixed( void* pDest = destination )
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{
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Write( (IntPtr)pDest, data, offset, count );
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}
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}
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}
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/// <summary>
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/// Writes the specified array T[] data to a memory location.
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/// </summary>
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/// <typeparam name="T">Type of a data to write</typeparam>
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/// <param name="destination">Memory location to write to.</param>
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/// <param name="data">The array of T data to write.</param>
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/// <param name="offset">The offset in the array to read from.</param>
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/// <param name="count">The number of T element to write to the memory location</param>
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/// <returns>destination pointer + sizeof(T) * count</returns>
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public static IntPtr Write<T>( IntPtr destination, T[] data, int offset, int count ) where T : struct
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{
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unsafe
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{
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return (IntPtr)Interop.Write( (void*)destination, data, offset, count );
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}
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}
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/// <summary>
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/// Allocate an aligned memory buffer.
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/// </summary>
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/// <param name="sizeInBytes">Size of the buffer to allocate.</param>
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/// <param name="align">Alignment, a positive value which is a power of 2. 16 bytes by default.</param>
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/// <returns>A pointer to a buffer aligned.</returns>
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/// <remarks>
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/// To free this buffer, call <see cref="FreeMemory"/>
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/// </remarks>
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public static unsafe IntPtr AllocateMemory( int sizeInBytes, int align = 16 )
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{
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var mask = align - 1;
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if( ( align & mask ) != 0 )
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{
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throw new ArgumentException( "Alignment is not power of 2", nameof( align ) );
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}
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var memPtr = Marshal.AllocHGlobal(sizeInBytes + mask + sizeof(void*));
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var ptr = (byte*)((ulong)(memPtr.ToInt32() + sizeof(void*) + mask) & ~(ulong)mask);
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( (IntPtr*)ptr )[-1] = memPtr;
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return new IntPtr( ptr );
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}
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/// <summary>
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/// Allocate an aligned memory buffer and clear it with a specified value (0 by defaault).
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/// </summary>
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/// <param name="sizeInBytes">Size of the buffer to allocate.</param>
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/// <param name="clearValue">Default value used to clear the buffer.</param>
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/// <param name="align">Alignment, 16 bytes by default.</param>
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/// <returns>A pointer to a buffer aligned.</returns>
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/// <remarks>
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/// To free this buffer, call <see cref="FreeMemory"/>
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/// </remarks>
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public static IntPtr AllocateClearedMemory( int sizeInBytes, byte clearValue = 0, int align = 16 )
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{
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var ptr = AllocateMemory(sizeInBytes, align);
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ClearMemory( ptr, clearValue, sizeInBytes );
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return ptr;
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}
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/// <summary>
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/// Determines whether the specified memory pointer is aligned in memory.
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/// </summary>
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/// <param name="memoryPtr">The memory pointer.</param>
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/// <param name="align">The align.</param>
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/// <returns><c>true</c> if the specified memory pointer is aligned in memory; otherwise, <c>false</c>.</returns>
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public static bool IsMemoryAligned( IntPtr memoryPtr, int align = 16 )
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{
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return ( memoryPtr.ToInt64() & ( align - 1 ) ) == 0;
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}
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/// <summary>
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/// Allocate an aligned memory buffer.
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/// </summary>
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/// <remarks>
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/// The buffer must have been allocated with <see cref="AllocateMemory"/>
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/// </remarks>
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public static unsafe void FreeMemory( IntPtr alignedBuffer )
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{
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Marshal.FreeHGlobal( ( (IntPtr*)alignedBuffer )[-1] );
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}
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/// <summary>
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/// If non-null, disposes the specified object and set it to null, otherwise do nothing.
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/// </summary>
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/// <param name="disposable">The disposable.</param>
|
|
public static void Dispose<T>( ref T disposable ) where T : class, IDisposable
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{
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if( disposable != null )
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{
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disposable.Dispose();
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disposable = null;
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}
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}
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|
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/// <summary>
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|
/// String helper join method to display an array of object as a single string.
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/// </summary>
|
|
/// <param name="separator">The separator.</param>
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/// <param name="array">The array.</param>
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/// <returns>a string with array elements serparated by the seperator</returns>
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[NotNull]
|
|
public static string Join<T>( string separator, T[] array )
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|
{
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|
var text = new StringBuilder();
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if( array != null )
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|
{
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|
for( var i = 0; i < array.Length; i++ )
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|
{
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if( i > 0 )
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text.Append( separator );
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text.Append( array[i] );
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}
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}
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return text.ToString();
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}
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|
|
/// <summary>
|
|
/// String helper join method to display an enumrable of object as a single string.
|
|
/// </summary>
|
|
/// <param name="separator">The separator.</param>
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|
/// <param name="elements">The enumerable.</param>
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|
/// <returns>a string with array elements serparated by the seperator</returns>
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|
[NotNull]
|
|
public static string Join( string separator, [NotNull] IEnumerable elements )
|
|
{
|
|
var elementList = new List<string>();
|
|
foreach( var element in elements )
|
|
elementList.Add( element.ToString() );
|
|
|
|
var text = new StringBuilder();
|
|
for( var i = 0; i < elementList.Count; i++ )
|
|
{
|
|
var element = elementList[i];
|
|
if( i > 0 )
|
|
text.Append( separator );
|
|
text.Append( element );
|
|
}
|
|
return text.ToString();
|
|
}
|
|
|
|
/// <summary>
|
|
/// String helper join method to display an enumrable of object as a single string.
|
|
/// </summary>
|
|
/// <param name="separator">The separator.</param>
|
|
/// <param name="elements">The enumerable.</param>
|
|
/// <returns>a string with array elements serparated by the seperator</returns>
|
|
[NotNull]
|
|
public static string Join( string separator, [NotNull] IEnumerator elements )
|
|
{
|
|
var elementList = new List<string>();
|
|
while( elements.MoveNext() )
|
|
elementList.Add( elements.Current.ToString() );
|
|
|
|
var text = new StringBuilder();
|
|
for( var i = 0; i < elementList.Count; i++ )
|
|
{
|
|
var element = elementList[i];
|
|
if( i > 0 )
|
|
text.Append( separator );
|
|
text.Append( element );
|
|
}
|
|
return text.ToString();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Read stream to a byte[] buffer
|
|
/// </summary>
|
|
/// <param name = "stream">input stream</param>
|
|
/// <returns>a byte[] buffer</returns>
|
|
[NotNull]
|
|
public static byte[] ReadStream( [NotNull] Stream stream )
|
|
{
|
|
var readLength = 0;
|
|
return ReadStream( stream, ref readLength );
|
|
}
|
|
|
|
/// <summary>
|
|
/// Read stream to a byte[] buffer
|
|
/// </summary>
|
|
/// <param name = "stream">input stream</param>
|
|
/// <param name = "readLength">length to read</param>
|
|
/// <returns>a byte[] buffer</returns>
|
|
[NotNull]
|
|
public static byte[] ReadStream( [NotNull] Stream stream, ref int readLength )
|
|
{
|
|
System.Diagnostics.Debug.Assert( stream != null );
|
|
System.Diagnostics.Debug.Assert( stream.CanRead );
|
|
var num = readLength;
|
|
System.Diagnostics.Debug.Assert( num <= ( stream.Length - stream.Position ) );
|
|
if( num == 0 )
|
|
readLength = (int)( stream.Length - stream.Position );
|
|
num = readLength;
|
|
|
|
System.Diagnostics.Debug.Assert( num >= 0 );
|
|
if( num == 0 )
|
|
return new byte[0];
|
|
|
|
var buffer = new byte[num];
|
|
var bytesRead = 0;
|
|
if( num > 0 )
|
|
{
|
|
do
|
|
{
|
|
bytesRead += stream.Read( buffer, bytesRead, readLength - bytesRead );
|
|
} while( bytesRead < readLength );
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Computes a hashcode for a dictionary.
|
|
/// </summary>
|
|
/// <returns>Hashcode for the list.</returns>
|
|
public static int GetHashCode( IDictionary dict )
|
|
{
|
|
if( dict == null )
|
|
return 0;
|
|
|
|
var hashCode = 0;
|
|
foreach( DictionaryEntry keyValue in dict )
|
|
{
|
|
hashCode = ( hashCode * 397 ) ^ keyValue.Key.GetHashCode();
|
|
hashCode = ( hashCode * 397 ) ^ ( keyValue.Value?.GetHashCode() ?? 0 );
|
|
}
|
|
return hashCode;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Computes a hashcode for an enumeration
|
|
/// </summary>
|
|
/// <param name="it">An enumerator.</param>
|
|
/// <returns>Hashcode for the list.</returns>
|
|
public static int GetHashCode( IEnumerable it )
|
|
{
|
|
if( it == null )
|
|
return 0;
|
|
|
|
var hashCode = 0;
|
|
foreach( var current in it )
|
|
{
|
|
hashCode = ( hashCode * 397 ) ^ ( current?.GetHashCode() ?? 0 );
|
|
}
|
|
return hashCode;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Computes a hashcode for an enumeration
|
|
/// </summary>
|
|
/// <param name="it">An enumerator.</param>
|
|
/// <returns>Hashcode for the list.</returns>
|
|
public static int GetHashCode( IEnumerator it )
|
|
{
|
|
if( it == null )
|
|
return 0;
|
|
|
|
var hashCode = 0;
|
|
while( it.MoveNext() )
|
|
{
|
|
var current = it.Current;
|
|
hashCode = ( hashCode * 397 ) ^ ( current?.GetHashCode() ?? 0 );
|
|
}
|
|
return hashCode;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compares two collection, element by elements.
|
|
/// </summary>
|
|
/// <param name="left">A "from" enumerator.</param>
|
|
/// <param name="right">A "to" enumerator.</param>
|
|
/// <returns>True if lists are identical. False otherwise.</returns>
|
|
public static bool Compare( IEnumerable left, IEnumerable right )
|
|
{
|
|
if( ReferenceEquals( left, right ) )
|
|
return true;
|
|
if( ReferenceEquals( left, null ) || ReferenceEquals( right, null ) )
|
|
return false;
|
|
|
|
return Compare( left.GetEnumerator(), right.GetEnumerator() );
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compares two collection, element by elements.
|
|
/// </summary>
|
|
/// <param name="leftIt">A "from" enumerator.</param>
|
|
/// <param name="rightIt">A "to" enumerator.</param>
|
|
/// <returns>True if lists are identical. False otherwise.</returns>
|
|
public static bool Compare( IEnumerator leftIt, IEnumerator rightIt )
|
|
{
|
|
if( ReferenceEquals( leftIt, rightIt ) )
|
|
return true;
|
|
if( ReferenceEquals( leftIt, null ) || ReferenceEquals( rightIt, null ) )
|
|
return false;
|
|
|
|
bool hasLeftNext;
|
|
bool hasRightNext;
|
|
while( true )
|
|
{
|
|
hasLeftNext = leftIt.MoveNext();
|
|
hasRightNext = rightIt.MoveNext();
|
|
if( !hasLeftNext || !hasRightNext )
|
|
break;
|
|
|
|
if( !Equals( leftIt.Current, rightIt.Current ) )
|
|
return false;
|
|
}
|
|
|
|
// If there is any left element
|
|
if( hasLeftNext != hasRightNext )
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compares two collection, element by elements.
|
|
/// </summary>
|
|
/// <param name="first">The collection to compare from.</param>
|
|
/// <param name="second">The colllection to compare to.</param>
|
|
/// <returns>True if lists are identical (but no necessarely of the same time). False otherwise.</returns>
|
|
public static bool Compare<TKey, TValue>( IDictionary<TKey, TValue> first, IDictionary<TKey, TValue> second )
|
|
{
|
|
if( ReferenceEquals( first, second ) )
|
|
return true;
|
|
if( ReferenceEquals( first, null ) || ReferenceEquals( second, null ) )
|
|
return false;
|
|
if( first.Count != second.Count )
|
|
return false;
|
|
|
|
var comparer = EqualityComparer<TValue>.Default;
|
|
|
|
foreach( var keyValue in first )
|
|
{
|
|
TValue secondValue;
|
|
if( !second.TryGetValue( keyValue.Key, out secondValue ) )
|
|
return false;
|
|
if( !comparer.Equals( keyValue.Value, secondValue ) )
|
|
return false;
|
|
}
|
|
|
|
// Check that all keys in second are in first
|
|
return second.Keys.All( first.ContainsKey );
|
|
}
|
|
|
|
public static bool Compare<T>( T[] left, T[] right )
|
|
{
|
|
if( ReferenceEquals( left, right ) )
|
|
return true;
|
|
if( ReferenceEquals( left, null ) || ReferenceEquals( right, null ) )
|
|
return false;
|
|
|
|
if( left.Length != right.Length )
|
|
return false;
|
|
|
|
var comparer = EqualityComparer<T>.Default;
|
|
for( var i = 0; i < left.Length; ++i )
|
|
{
|
|
if( !comparer.Equals( left[i], right[i] ) )
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Compares two collection, element by elements.
|
|
/// </summary>
|
|
/// <param name="left">The collection to compare from.</param>
|
|
/// <param name="right">The colllection to compare to.</param>
|
|
/// <returns>True if lists are identical (but no necessarely of the same time). False otherwise.</returns>
|
|
public static bool Compare<T>( ICollection<T> left, ICollection<T> right )
|
|
{
|
|
if( ReferenceEquals( left, right ) )
|
|
return true;
|
|
if( ReferenceEquals( left, null ) || ReferenceEquals( right, null ) )
|
|
return false;
|
|
|
|
if( left.Count != right.Count )
|
|
return false;
|
|
|
|
var count = 0;
|
|
var leftIt = left.GetEnumerator();
|
|
var rightIt = right.GetEnumerator();
|
|
var comparer = EqualityComparer<T>.Default;
|
|
while( leftIt.MoveNext() && rightIt.MoveNext() )
|
|
{
|
|
if( !comparer.Equals( leftIt.Current, rightIt.Current ) )
|
|
return false;
|
|
count++;
|
|
}
|
|
|
|
// Just double check to make sure that the iterator actually returns
|
|
// the exact number of elements
|
|
if( count != left.Count )
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Swaps the value between two references.
|
|
/// </summary>
|
|
/// <typeparam name="T">Type of a data to swap.</typeparam>
|
|
/// <param name="left">The left value.</param>
|
|
/// <param name="right">The right value.</param>
|
|
public static void Swap<T>( ref T left, ref T right )
|
|
{
|
|
var temp = left;
|
|
left = right;
|
|
right = temp;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Suspends current thread for a <see cref="sleepTime"/>.
|
|
/// </summary>
|
|
/// <param name="sleepTime">The duration of sleep.</param>
|
|
public static void Sleep( TimeSpan sleepTime )
|
|
{
|
|
var ms = (long)sleepTime.TotalMilliseconds;
|
|
if( ms < 0 || ms > int.MaxValue )
|
|
{
|
|
throw new ArgumentOutOfRangeException( nameof( sleepTime ), "Sleep time must be a duration less than '2^31 - 1' milliseconds." );
|
|
}
|
|
// MH PORTED NativeInvoke.Sleep((int)ms);
|
|
Thread.Sleep( (int)ms );
|
|
}
|
|
|
|
/// <summary>
|
|
/// Suspends current thread for a <see cref="sleepTimeInMillis"/>.
|
|
/// </summary>
|
|
/// <param name="sleepTimeInMillis">The duration of sleep in milliseconds.</param>
|
|
public static void Sleep( int sleepTimeInMillis )
|
|
{
|
|
// MH PORTED NativeInvoke.Sleep(sleepTimeInMillis);
|
|
Thread.Sleep( sleepTimeInMillis );
|
|
}
|
|
|
|
/// <summary>
|
|
/// Writes the specified T data to a memory location.
|
|
/// </summary>
|
|
/// <typeparam name="T">Type of a data to write</typeparam>
|
|
/// <param name="destination">Memory location to write to.</param>
|
|
/// <param name="data">The data to write.</param>
|
|
internal static void UnsafeWrite<T>( IntPtr destination, ref T data )
|
|
{
|
|
unsafe
|
|
{
|
|
Interop.CopyInline( (void*)destination, ref data );
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Reads the specified T data from a memory location.
|
|
/// </summary>
|
|
/// <typeparam name="T">Type of a data to read</typeparam>
|
|
/// <param name="source">Memory location to read from.</param>
|
|
/// <param name="data">The data write to.</param>
|
|
internal static void UnsafeReadOut<T>( IntPtr source, out T data )
|
|
{
|
|
unsafe
|
|
{
|
|
Interop.CopyInlineOut( out data, (void*)source );
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Return the sizeof a struct from a CLR. Equivalent to sizeof operator but works on generics too.
|
|
/// </summary>
|
|
/// <typeparam name="T">a struct to evaluate</typeparam>
|
|
/// <returns>sizeof this struct</returns>
|
|
internal static int UnsafeSizeOf<T>()
|
|
{
|
|
return Interop.SizeOf<T>();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Linq assisted full tree iteration and collection in a single line.
|
|
/// Warning, could be slow.
|
|
/// </summary>
|
|
/// <typeparam name="T">The type to iterate.</typeparam>
|
|
/// <param name="root">The root item</param>
|
|
/// <param name="childrenF">The function to retrieve a child</param>
|
|
public static IEnumerable<T> IterateTree<T>( T root, Func<T, IEnumerable<T>> childrenF )
|
|
{
|
|
var q = new List<T> { root };
|
|
while( q.Any() )
|
|
{
|
|
var c = q[0];
|
|
q.RemoveAt( 0 );
|
|
q.AddRange( childrenF( c ) ?? Enumerable.Empty<T>() );
|
|
yield return c;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts a <see cref="Stopwatch" /> raw time to a <see cref="TimeSpan" />.
|
|
/// </summary>
|
|
/// <param name="delta">The delta.</param>
|
|
/// <returns>The <see cref="TimeSpan" />.</returns>
|
|
public static TimeSpan ConvertRawToTimestamp( long delta )
|
|
{
|
|
return new TimeSpan( delta == 0 ? 0 : ( delta * TimeSpan.TicksPerSecond ) / Stopwatch.Frequency );
|
|
}
|
|
}
|
|
}
|