RandomString() public static method

public static RandomString ( ) : string
return string
Esempio n. 1
0
        CompilerData CreateExecutable(InputData input)
        {
            CompilerData cdata = new CompilerData();
            string       ext   = "";
            string       rand  = Utils.RandomString();

            cdata.Rand = rand;
            string dir = rand + @"\";

            switch (input.Lang)
            {
            case Languages.VCPP:
                ext = ".cpp";
                break;

            case Languages.VC:
                ext = ".c";
                break;

            default:
                ext = ".unknown";
                break;
            }
            string PathToSource = RootPath + dir + rand + ext;

            input.PathToSource = PathToSource;
            input.BaseDir      = RootPath + dir;
            input.Rand         = rand;
            Directory.CreateDirectory(RootPath + dir);

            Directory.SetCurrentDirectory(RootPath + dir);
            //DirectorySecurity sec = Directory.GetAccessControl(RootPath + dir);
            //SecurityIdentifier everyone = new SecurityIdentifier(WellKnownSidType.WorldSid, null);
            //sec.AddAccessRule(new FileSystemAccessRule(everyone, FileSystemRights.Modify | FileSystemRights.Synchronize, InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit, PropagationFlags.None, AccessControlType.Allow));
            //Directory.SetAccessControl(RootPath + dir, sec);

            using (TextWriter sw = new StreamWriter(PathToSource))
            {
                sw.Write(input.Program);
            }

            cdata.CleanThis = RootPath + dir;

            var comp = ICompilerFactory.GetICompiler(input.Lang);

            if (comp != null)
            {
                return(comp.Compile(input, cdata));
            }

            cdata.Success = false;
            return(cdata);
        }
Esempio n. 2
0
        OutputData RunSql(InputData idata)
        {
            OutputData odata = new OutputData();
            string     path  = BasePath + @"usercode\" + Utils.RandomString() + ".sql";

            using (TextWriter tw = new StreamWriter(path))
            {
                tw.Write(idata.Program);
            }

            using (Process process = new Process())
            {
                try
                {
                    double TotalMemoryInBytes = 0;
                    double TotalThreadCount   = 0;
                    int    samplesCount       = 0;

                    process.StartInfo.FileName               = BasePath + @"executables\SqlSandbox.exe";
                    process.StartInfo.Arguments              = path.Replace(" ", "|_|");
                    process.StartInfo.UseShellExecute        = false;
                    process.StartInfo.CreateNoWindow         = true;
                    process.StartInfo.RedirectStandardOutput = true;
                    process.StartInfo.RedirectStandardError  = true;

                    DateTime start = DateTime.Now;
                    process.Start();

                    OutputReader output       = new OutputReader(process.StandardOutput);
                    Thread       outputReader = new Thread(new ThreadStart(output.ReadOutput));
                    outputReader.Start();
                    OutputReader error       = new OutputReader(process.StandardError);
                    Thread       errorReader = new Thread(new ThreadStart(error.ReadOutput));
                    errorReader.Start();


                    do
                    {
                        // Refresh the current process property values.
                        process.Refresh();
                        if (!process.HasExited)
                        {
                            try
                            {
                                var proc = process.TotalProcessorTime;
                                // Update the values for the overall peak memory statistics.
                                var mem1 = process.PagedMemorySize64;
                                var mem2 = process.PrivateMemorySize64;

                                //update stats
                                TotalMemoryInBytes += (mem1 + mem2);
                                TotalThreadCount   += (process.Threads.Count);
                                samplesCount++;

                                if (proc.TotalSeconds > 5 || mem1 + mem2 > 100000000 || process.Threads.Count > 100 || start + TimeSpan.FromSeconds(15) < DateTime.Now)
                                {
                                    var time = proc.TotalSeconds;
                                    var mem  = mem1 + mem2;
                                    process.Kill();
                                    var res = string.Format("Process killed because it exceeded given resources.\nCpu time used {0} sec, absolute running time {1} sec, memory used {2} Mb, nr of threads {3}", time, (int)(DateTime.Now - start).TotalSeconds, (int)(mem / 1048576), process.Threads.Count);
                                    odata.Errors = odata.Errors + "\n" + res;
                                    string partialResult = output.Builder.ToString();
                                    odata.Output = partialResult;
                                    //odata.Stats = string.Format("Absolute service time: {0} sec", Math.Round((double)(DateTime.Now - start).TotalMilliseconds / 1000, 2));
                                    //Utils.Log.LogCodeToDB(data.Program, data.Input, data.CompilerArgs, res, (int)data.LanguageChoice, data.IsApi);
                                    return(odata);
                                }
                            }
                            catch (InvalidOperationException)
                            {
                                break;
                            }
                        }
                    }while (!process.WaitForExit(10));
                    process.WaitForExit();

                    errorReader.Join(5000);
                    outputReader.Join(5000);

                    if (!string.IsNullOrEmpty(error.Output))
                    {
                        odata.Output  = output.Builder.ToString();
                        odata.Errors += "\n" + error.Output;
                        odata.Stats   = string.Format("Absolute service time: {0} sec", Math.Round((double)(DateTime.Now - start).TotalMilliseconds / 1000, 2));
                        //Utils.Log.LogCodeToDB(data.Program, data.Input, data.CompilerArgs, error.Output, (int)data.LanguageChoice, data.IsApi);
                        return(odata);
                    }

                    if (File.Exists(path + ".stats"))
                    {
                        using (TextReader tr = new StreamReader(path + ".stats"))
                        {
                            odata.Stats = tr.ReadLine();
                            if (!string.IsNullOrEmpty(odata.Stats))
                            {
                                odata.Stats += ", ";
                            }
                            else
                            {
                                odata.Stats = "";
                            }
                            odata.Stats += string.Format("absolute service time: {0} sec", Math.Round((double)(DateTime.Now - start).TotalMilliseconds / 1000, 2));
                        }
                    }
                    //else
                    //{
                    //    odata.Stats = string.Format("Absolute service time: {0} sec", Math.Round((double)(DateTime.Now - start).TotalMilliseconds / 1000, 2));
                    //}

                    odata.Output = output.Output;
                    // Utils.Log.LogCodeToDB(data.Program, data.Input, data.CompilerArgs, "OK", (int)data.LanguageChoice, data.IsApi);
                    return(odata);
                }
                catch (Exception e)
                {
                    if (!process.HasExited)
                    {
                        //reExp.Utils.Log.LogInfo("Process left running " + e.Message, "RunSqlServer");
                    }
                    throw;
                }
                finally
                {
                    try
                    {
                        File.Delete(path);
                    }
                    catch (Exception)
                    { }

                    //SqlServerUtils job = new SqlServerUtils();
                    //Thread t = new Thread(job.DoShrinkJob);
                    //t.Start();
                }
            }
        }