91 lines
3.6 KiB
C#
Executable File
91 lines
3.6 KiB
C#
Executable File
using System;
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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.IO.Compression;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows.Forms;
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namespace Shadowsocks.Util
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{
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public class Utils
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{
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// return path to store temporary files
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public static string GetTempPath()
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{
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if (File.Exists(Application.StartupPath + "\\shadowsocks_portable_mode.txt"))
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{
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try
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{
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Directory.CreateDirectory(Application.StartupPath + "\\temp");
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} catch (Exception e)
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{
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Console.WriteLine(e);
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}
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// don't use "/", it will fail when we call explorer /select xxx/temp\xxx.log
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return Application.StartupPath + "\\temp";
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}
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return Path.GetTempPath();
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}
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public static void ReleaseMemory(bool removePages)
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{
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// release any unused pages
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// making the numbers look good in task manager
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// this is totally nonsense in programming
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// but good for those users who care
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// making them happier with their everyday life
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// which is part of user experience
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GC.Collect(GC.MaxGeneration);
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GC.WaitForPendingFinalizers();
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if (removePages)
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{
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// as some users have pointed out
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// removing pages from working set will cause some IO
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// which lowered user experience for another group of users
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//
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// so we do 2 more things here to satisfy them:
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// 1. only remove pages once when configuration is changed
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// 2. add more comments here to tell users that calling
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// this function will not be more frequent than
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// IM apps writing chat logs, or web browsers writing cache files
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// if they're so concerned about their disk, they should
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// uninstall all IM apps and web browsers
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//
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// please open an issue if you're worried about anything else in your computer
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// no matter it's GPU performance, monitor contrast, audio fidelity
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// or anything else in the task manager
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// we'll do as much as we can to help you
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//
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// just kidding
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SetProcessWorkingSetSize(Process.GetCurrentProcess().Handle,
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(UIntPtr)0xFFFFFFFF, (UIntPtr)0xFFFFFFFF);
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}
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}
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public static string UnGzip(byte[] buf)
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{
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byte[] buffer = new byte[1024];
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int n;
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using (MemoryStream sb = new MemoryStream())
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{
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using (GZipStream input = new GZipStream(new MemoryStream(buf),
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CompressionMode.Decompress, false))
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{
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while ((n = input.Read(buffer, 0, buffer.Length)) > 0)
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{
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sb.Write(buffer, 0, n);
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}
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}
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return System.Text.Encoding.UTF8.GetString(sb.ToArray());
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}
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}
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[DllImport("kernel32.dll")]
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[return: MarshalAs(UnmanagedType.Bool)]
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private static extern bool SetProcessWorkingSetSize(IntPtr process,
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UIntPtr minimumWorkingSetSize, UIntPtr maximumWorkingSetSize);
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}
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}
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