Source

SOSNet / SosController.cs

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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;
using System.Reflection;
using System.Text.RegularExpressions;
using SOS.Net.Model;

namespace SOS.Net
{
    /// <summary>
    /// http://geekswithblogs.net/.netonmymind/archive/2006/03/14/72262.aspx
    /// </summary>
    public class SosController : IDisposable
    {
        private ListViewItem[] processes;

        /// <summary>
				/// don't use me, use SosController.types instead
				/// </summary>
				private ListViewItem[] _types;

				private ListViewItem[] types
				{
				  get { return _types ?? new ListViewItem[]{}; }
				  set { _types = value; }
				}

    	private string cdbPath;

        private List<string> commandHistory = new List<string>();

        private int commandHistoryPosition;

        private Process cdb;

        private string sosexPath;

        private bool cdbStarted;

        public event EventHandler<CdbEventArgs> OnCdbOuput;

        public bool Attached
        {
            get { return this.cdb != null; }
        }

        public CdbSettings LoadSettings()
        {
            Settings.Default.Reload();
            this.cdbPath = Settings.Default.CdbPath;
            this.sosexPath = Settings.Default.SosexPath;            

            return new CdbSettings
            {
                CdbPath = this.cdbPath,
                SosexPath = this.sosexPath
            };
        }

        public void SaveSettings(CdbSettings settings)
        {
            Settings.Default.CdbPath = settings.CdbPath;
            Settings.Default.SosexPath = settings.SosexPath;
            Settings.Default.Save();
            this.LoadSettings();
        }

        public ListViewItem[] RefreshProcesses()
        {
            processes = Process.GetProcesses().Select(p => new ListViewItem(new string[]
                                                                            {
                                                                                p.Id.ToString(), 
                                                                                p.ProcessName,
                                                                                p.StartInfo.FileName
                                                                            })).ToArray();
            return processes;
        }

        public ListViewItem[] FilterProcesses(string filter)
        {
            if (processes == null)
                return new ListViewItem[0];
            return processes.Where(p => p.SubItems[1].Text.IndexOf(filter, StringComparison.OrdinalIgnoreCase) != -1).ToArray();
        }

        public void AttachToProcess(string pid)
        {
            var pinfo = new ProcessStartInfo
            {
                FileName = Path.Combine(cdbPath, "cdb.exe"),
                WorkingDirectory = ".",
                Arguments = string.Format("-p {0}", pid),
                UseShellExecute = false,
                RedirectStandardInput = true,
                RedirectStandardOutput = true,
                WindowStyle = ProcessWindowStyle.Hidden,
                CreateNoWindow = true                
            };

            cdb = Process.Start(pinfo);

            this.ExecuteCommand(".loadby sos mscorwks");

            string sosexFullPath = this.sosexPath;
            if (string.IsNullOrEmpty(sosexFullPath))
                sosexFullPath = AppDomain.CurrentDomain.BaseDirectory;
            sosexFullPath = Path.Combine(sosexFullPath, "sosex.dll");
            if (File.Exists(sosexFullPath))
            {
                sosexFullPath = sosexFullPath.Replace("\\", "\\\\");
                this.ExecuteCommand(string.Format(".load \"{0}\"", sosexFullPath));
            }

            this.commandHistory = new List<string>();
        }

        public string GetPreviousCommand()
        {
            commandHistoryPosition--;
            if (commandHistoryPosition < 0)
                commandHistoryPosition = 0;
            return this.commandHistory[commandHistoryPosition];
        }

        public string GetNextCommand()
        {
            commandHistoryPosition++;
            if (commandHistoryPosition >= commandHistory.Count)
                commandHistoryPosition = commandHistory.Count-1;
            return this.commandHistory[commandHistoryPosition];
        }

        public string ExecuteCommand(string command)
        {
            commandHistory.Add(command);
            commandHistoryPosition = commandHistory.Count-1;

            cdb.StandardInput.WriteLine(command);
            var endToken = Guid.NewGuid().ToString();
            cdb.StandardInput.WriteLine(".echo " + endToken);	//Tagging the end of the output

            StringBuilder output = new StringBuilder();
            string line = null;
            do
            {                
                line = cdb.StandardOutput.ReadLine();
                if (line != null)
                {
                    line = line.Replace("\n", Environment.NewLine);
                    output.AppendLine(line);
                }
            } while (line != null && !line.EndsWith(endToken));                        
            if(OnCdbOuput != null)
                OnCdbOuput(this, new CdbEventArgs(command, output.ToString()));

            return output.ToString();
        }

        public void Detach()
        {
            if (cdb != null)
            {
                this.ExecuteCommand(".detach");
                cdb.StandardInput.WriteLine(".q");
                cdb.StandardOutput.ReadToEnd();
                //this.cdb.Kill();
                this.cdb.Dispose();
                this.cdb = null;
            }
        }

        #region IDisposable Members

        public void Dispose()
        {
            this.Detach();
        }

        #endregion

        public ListViewItem[] GetAllAppDomains()
        {
            return  this.GetAppDomainInfos().Select(a => new ListViewItem(new string[]
                                                                            {
                                                                                a.Address, 
                                                                                a.Name
                                                                            })).ToArray();
        }

        private List<AppDomainInfo> GetAppDomainInfos()
        {
            const string appDomainSeparator = "--------------------------------------";

            var output = this.ExecuteCommand("!DumpDomain");
            StringReader reader = new StringReader(output);

            List<AppDomainInfo> result = new List<AppDomainInfo>();

            string line = null;
            line = reader.ReadLine();
            do
            {
                if (line != null && line.Equals(appDomainSeparator))
                {
                    // inside a AppDomain
                    line = reader.ReadLine();

                    if (line.StartsWith("System Domain:") || line.StartsWith("Shared Domain:"))
                    {
                        do
                        {
                            line = reader.ReadLine();
                        } while (line != null && !line.Equals(appDomainSeparator));
                    }
                    else
                    {
                        var appDomainInfo = new AppDomainInfo();
                        result.Add(appDomainInfo);

                        appDomainInfo.Address = Regex.Match(line, "Domain .*:(.*)").Groups[1].Value;

                        do
                        {
                            line = reader.ReadLine();
                            if (line != null && line.StartsWith("Name: "))
                            {
                                appDomainInfo.Name = line.Substring("Name: ".Length);
                            }
                        } while (line != null && !line.Equals(appDomainSeparator));
                    }
                }
                else
                {
                    line = reader.ReadLine();
                }
            } while (line != null);

            return result;
        }

        public ListViewItem[] GetAssemblies(string appDomainAddress)
        {
            return this.GetAssembliesInfo(appDomainAddress).Select(a => new ListViewItem(new string[]
                                                                            {
                                                                                a.Address, 
                                                                                a.Name
                                                                            })).ToArray();
        }

        private List<AssemblyInfo> GetAssembliesInfo(string appDomainAddress)
        {
            var output = this.ExecuteCommand(string.Format("!DumpDomain {0}", appDomainAddress));
            StringReader reader = new StringReader(output);

            List<AssemblyInfo> result = new List<AssemblyInfo>();

            string line = reader.ReadLine();
            while (line != null)
            {                
                var match = Regex.Match(line, "Assembly: (.*) \\[(.*)\\]");
                if (match.Success)
                {
                    AssemblyInfo assemblyInfo = new AssemblyInfo
                    {
                        Address = match.Groups[1].Value,
                        Name = match.Groups[2].Value
                    };
                    result.Add(assemblyInfo);
                }

                line = reader.ReadLine();
            }

            return result;
        }

        public ListViewItem[] GetDumpHeapTypes()
        {
            this.types = this.GetDumpHeapTypesInfo().Select(a => new ListViewItem(new string[]
                                                                            {
                                                                                a.Address, 
                                                                                a.Count,
                                                                                a.TotalSize,
                                                                                a.ClassName
                                                                            })).ToArray();

            return this.types;
        }

        private List<TypeInfo> GetDumpHeapTypesInfo()
        {
            var output = this.ExecuteCommand("!dumpheap -stat");
            StringReader reader = new StringReader(output);

            List<TypeInfo> result = new List<TypeInfo>();

            string line = reader.ReadLine();
            while (line != null)
            {
                if (Regex.Match(line, ".*[tT]otal [0-9]+ objects.*").Success)
                {
                    line = reader.ReadLine();
                    continue;                    
                }

                if (Regex.Match(line, "0:005>.*").Success)
                {
                    line = reader.ReadLine();
                    continue;
                }
                
                var match = Regex.Match(line, "([^ ]+) *([0-9]+) *([0-9]+) *(.+)");
                if (match.Success)
                {
                    TypeInfo assemblyInfo = new TypeInfo
                                            {
                                                Address = match.Groups[1].Value,
                                                Count = match.Groups[2].Value,
                                                TotalSize = match.Groups[3].Value,
                                                ClassName = match.Groups[4].Value
                                            };
                    result.Add(assemblyInfo);
                }
                line = reader.ReadLine();                
            }

            return result;

        }

        public ListViewItem[] GetInstances(string typeAddress)
        {
            return this.GetInstancesInfo(typeAddress).Select(a => new ListViewItem(new string[]
                                                                            {
                                                                                a.Address, 
                                                                                a.Size
                                                                            })).ToArray();
        }

        private List<InstanceInfo> GetInstancesInfo(string typeAddress)
        {
            var output = this.ExecuteCommand(string.Format("!DumpHeap -mt {0}", typeAddress));
            StringReader reader = new StringReader(output);

            List<InstanceInfo> result = new List<InstanceInfo>();

            string line = reader.ReadLine();
            while (line != null)
            {
                if (Regex.Match(line, "0:005>.*").Success)
                {
                    line = reader.ReadLine();
                    continue;
                }

                if (Regex.Match(line, ".*[tT]otal [0-9]+ objects.*").Success)
                {
                    break;
                }

                var match = Regex.Match(line, "([^ ]+) *([^ ]+) *([0-9]+) *");
                if (match.Success)
                {
                    InstanceInfo instanceInfo = new InstanceInfo
                    {
                        Address = match.Groups[1].Value,
                        Size = match.Groups[3].Value
                    };
                    result.Add(instanceInfo);
                }

                line = reader.ReadLine();
            }

            return result;
        }

        public ListViewItem[] GetInstanceDump(string instanceAddress)
        {
            return this.GetObjectFieldsInfo(instanceAddress).Select(a => new ListViewItem(new string[]
                                                                            {
                                                                                a.FieldAddress, 
                                                                                a.TypeName,                                                                                
                                                                                a.Attribut,
                                                                                a.Value,
                                                                                a.FieldName,
                                                                            })).ToArray();
        }

        public ListViewItem[] GetInstanceDump(string instanceAddress, string index)
        {
            return this.GetObjectFieldsInfo(instanceAddress, index).Select(a => new ListViewItem(new string[]
                                                                            {
                                                                                a.FieldAddress, 
                                                                                a.TypeName,                                                                                
                                                                                a.Attribut,
                                                                                a.Value,
                                                                                a.FieldName,
                                                                            })).ToArray();
        }

        private List<ObjectFieldsInfo> GetObjectFieldsInfo(string instanceAddress)
        {
            var output = this.ExecuteCommand(string.Format("!DumpObj {0}", instanceAddress));
            StringReader reader = new StringReader(output);

            List<ObjectFieldsInfo> result = new List<ObjectFieldsInfo>();

            string line = reader.ReadLine();
            while (line != null)
            {
                if (Regex.Match(line, "0:005>.*").Success)
                {
                    line = reader.ReadLine();
                    continue;
                }

                while(line != null && !line.StartsWith("Fields:"))
                    line = reader.ReadLine();

                if(line == null)
                    continue;

                // skip the header of the array
                line = reader.ReadLine();

                // and read the next line
                line = reader.ReadLine();

                while (line != null)
                {
                    if(Regex.Match(line, " *>> Domain:Value.*").Success)
                    {
                        line = reader.ReadLine();
                        continue;
                    }

                    if (Regex.Match(line, "0:005>.*").Success)
                    {
                        line = reader.ReadLine();
                        continue;
                    }

                    var match = Regex.Match(line,
                                            "([^ ]+) *([^ ]+) *([^ ]+) *([^ ]+) *([0-1]) *([^ ]+) *([^ ]+) *([^ ]+)");
                    if (match.Success)
                    {
                        ObjectFieldsInfo instanceInfo = new ObjectFieldsInfo
                                                        {
                                                            FieldAddress = match.Groups[1].Value,
                                                            TypeName = match.Groups[4].Value,
                                                            Attribut = match.Groups[6].Value,
                                                            Value = match.Groups[7].Value,
                                                            FieldName = match.Groups[8].Value
                                                        };
                        result.Add(instanceInfo);
                    }

                    line = reader.ReadLine();
                }
            }

            return result;
        }

        private List<ObjectFieldsInfo> GetObjectFieldsInfo(string address, string index)
        {
            var output = this.ExecuteCommand(string.Format("!DumpArray -details {0}", address));
            StringReader reader = new StringReader(output);

            List<ObjectFieldsInfo> result = new List<ObjectFieldsInfo>();

            string line = reader.ReadLine();
            while (line != null)
            {
                while (line != null && !line.StartsWith("Element Methodtable"))
                    line = reader.ReadLine();

                while (line != null && !Regex.IsMatch(line, string.Format("\\[{0}\\].*", index)))
                    line = reader.ReadLine();

                while (line != null &&  !Regex.IsMatch(line, ".*Fields:"))
                    line = reader.ReadLine();

                if (line == null)
                    continue;

                // skip the header of the array
                line = reader.ReadLine();

                // and read the next line
                line = reader.ReadLine();

                while (line != null)
                {
                    if (Regex.Match(line, " *>> Domain:Value.*").Success)
                    {
                        line = reader.ReadLine();
                        continue;
                    }

                    if (Regex.Match(line, "0:005>.*").Success)
                    {
                        line = reader.ReadLine();
                        continue;
                    }

                    if(Regex.IsMatch(line, string.Format("\\[[0-9]+\\].*", index)))
                    {
                        // skip to the end, because it's the next entry
                        while(line != null)
                            line = reader.ReadLine();
                    }

                    if (line != null)
                    {
                        var match = Regex.Match(line,
                                                "([^ ]+) *([^ ]+) *([^ ]+) *([^ ]+) *([0-1]) *([^ ]+) *([^ ]+) *([^ ]+)");
                        if (match.Success)
                        {
                            ObjectFieldsInfo instanceInfo = new ObjectFieldsInfo
                                                            {
                                                                FieldAddress = match.Groups[1].Value,
                                                                TypeName = match.Groups[4].Value,
                                                                Attribut = match.Groups[6].Value,
                                                                Value = match.Groups[7].Value,
                                                                FieldName = match.Groups[8].Value
                                                            };
                            result.Add(instanceInfo);
                        }                        
                    }
                    line = reader.ReadLine();
                }
            }

            return result;
        }

        public ListViewItem[] FilterTypes(string typeName)
        {
        	Func<ListViewItem, bool> filteringPredicate =
        		(item) =>
        		item.SubItems[3].Text.IndexOf(typeName, StringComparison.OrdinalIgnoreCase) != -1;
          return this.types.Where(filteringPredicate).ToArray();
        }

        public ObjectInfo GetInstanceDumpDetails(string instanceAddress)
        {
            ObjectInfo result = new ObjectInfo();
            result.Address = instanceAddress;

            var output = this.ExecuteCommand(string.Format("!DumpObj {0}", instanceAddress));
            StringReader reader = new StringReader(output);

            string line = reader.ReadLine();
            while (line != null)
            {
                var match = Regex.Match(line, ".*Name: (.*)");
                if (match.Success)
                {
                    result.Name = match.Groups[1].Value;
                }

                match = Regex.Match(line, ".*String: (.*)");
                if (match.Success)
                {
                    StringBuilder toString = new StringBuilder();
                    toString.AppendLine(match.Groups[1].Value);

                    // read the other lines to reach the "Fields"
                    match = Regex.Match(line, ".*Fields: (.*)");
                    while (!match.Success && line != null)
                    {
                        line = reader.ReadLine();
                        if (line != null)
                        {
                            match = Regex.Match(line, ".*Fields:(.*)");
                            if(!match.Success)
                                toString.AppendLine(line);
                        }
                    }
                    result.String = toString.ToString();
                }
                line = reader.ReadLine();
            }

            output = this.ExecuteCommand(string.Format("!ObjSize {0}", instanceAddress));
            var sizeMatch = Regex.Match(output, ".*sizeof\\(.*\\) = *([^ ]*) *\\(.*\\) bytes.*");
            if (sizeMatch.Success)
                result.TrueSize = sizeMatch.Groups[1].Value;

            return result;
        }

        public ObjectInfo GetInstanceDumpDetails(string address, string index)
        {
            ObjectInfo result = new ObjectInfo();
            result.Address = address;
            result.Index = index;

            var output = this.ExecuteCommand(string.Format("!DumpArray -details {0}", address));
            StringReader reader = new StringReader(output);

            string line = reader.ReadLine();
            while (line != null)
            {
                while (line != null && !line.StartsWith("Element Methodtable"))
                    line = reader.ReadLine();

                while(line != null && !Regex.IsMatch(line, string.Format("\\[{0}\\].*", index)))
                    line = reader.ReadLine();

                while (line != null)
                {
                    var match = Regex.Match(line, ".*Name: (.*)");
                    if (match.Success)
                    {
                        result.Name = match.Groups[1].Value;
                    }

                    match = Regex.Match(line, ".*String: (.*)");
                    if (match.Success)
                    {
                        StringBuilder toString = new StringBuilder();
                        toString.AppendLine(match.Groups[1].Value);

                        // read the other lines to reach the "Fields"
                        match = Regex.Match(line, ".*Fields: (.*)");
                        while (!match.Success && line != null)
                        {
                            line = reader.ReadLine();
                            if (line != null)
                            {
                                match = Regex.Match(line, ".*Fields:(.*)");
                                if (!match.Success)
                                    toString.AppendLine(line);
                            }
                        }
                        result.String = toString.ToString();
                    }
                    line = reader.ReadLine();
                }                
            }

            return result;
        }

        public ListViewItem[] GetArrayInstances(string selectedAddress)
        {
            return this.GetArrayInstancesInfo(selectedAddress).Select(a => new ListViewItem(new string[]
                                                                            {
                                                                                a.Number, 
                                                                                a.Address
                                                                            })).ToArray();
            
        }

        private List<ArrayInstanceInfo> GetArrayInstancesInfo(string selectedAddress)
        {
            var output = this.ExecuteCommand(string.Format("!DumpArray {0}", selectedAddress));
            StringReader reader = new StringReader(output);

            List<ArrayInstanceInfo> result = new List<ArrayInstanceInfo>();

            string line = reader.ReadLine();
            while (line != null)
            {
                while (line != null && !line.StartsWith("Element Methodtable"))
                    line = reader.ReadLine();

                // found, skip the line
                line = reader.ReadLine();

                if(line != null && Regex.Match(line, "0:005>.*").Success)
                {
                    line = reader.ReadLine();
                    continue;
                }

                while (line != null)
                {
                    var match = Regex.Match(line, "\\[([0-9]+)\\] *([^ ]+)");
                    if (match.Success)
                    {
                        ArrayInstanceInfo arrayInstanceInfo = new ArrayInstanceInfo
                                                              {
                                                                  Number = match.Groups[1].Value,
                                                                  Address = match.Groups[2].Value
                                                              };
                        result.Add(arrayInstanceInfo);
                    }

                    line = reader.ReadLine();
                }
            }

            return result;
        }
    }
}