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