First round of dead file removal

experimental/visual_studio_plugin/src/NaClVsx.Package/DebugSupport/Thread.cs

-// Copyright (c) 2011 The Native Client Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#region
-
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using Google.MsAd7.BaseImpl;
-using Google.MsAd7.BaseImpl.Ad7Enumerators;
-using Google.MsAd7.BaseImpl.DebugProperties;
-using Microsoft.VisualStudio;
-using Microsoft.VisualStudio.Debugger.Interop;
-using NaClVsx.DebugHelpers;
-using StackFrame = Google.MsAd7.BaseImpl.StackFrame;
-
-#endregion
-
-namespace Google.NaClVsx.DebugSupport {
-  public class Thread : IDebugThread2 {
-    public Thread(ProgramNode program, string name, uint tid) {
-      name_ = name;
-      tid_ = tid;
-      program_ = program;
-    }
-
-    #region Implementation of IDebugThread2
-
-    public List<StackFrame> GetStack() {
-      return stack_;
-    }
-
-    /// <summary>
-    ///   Called by the Visual Studio Debugger to retrieve the stack frames for
-    ///   this thread.  On halt, this will be called on each thread.  Detailed
-    ///   information about the arguments and required usage can be found on
-    ///   msdn.
-    /// </summary>
-    public int EnumFrameInfo(enum_FRAMEINFO_FLAGS dwFieldSpec,
-                             uint nRadix,
-                             out IEnumDebugFrameInfo2 ppEnum) {
-      Debug.WriteLine("Thread.EnumFrameInfo");
-
-      RefreshFrameInfo(stack_);
-
-      var frames = new List<FRAMEINFO>(stack_.Count);
-      var fi = new FRAMEINFO[1];
-
-      foreach (var stackFrame in stack_) {
-        stackFrame.GetInfo(dwFieldSpec, nRadix, fi);
-        frames.Add(fi[0]);
-      }
-
-      ppEnum = new FrameInfoEnumerator(frames);
-
-      return VSConstants.S_OK;
-    }
-
-    public int GetName(out string pbstrName) {
-      Debug.WriteLine("Thread.GetName");
-      pbstrName = name_;
-      return VSConstants.S_OK;
-    }
-
-    public int SetThreadName(string pszName) {
-      Debug.WriteLine("Thread.SetThreadName");
-      name_ = pszName;
-      return VSConstants.S_OK;
-    }
-
-    public int GetProgram(out IDebugProgram2 ppProgram) {
-      Debug.WriteLine("Thread.GetProgram");
-      ppProgram = program_;
-      return VSConstants.S_OK;
-    }
-
-    public int CanSetNextStatement(IDebugStackFrame2 pStackFrame,
-                                   IDebugCodeContext2 pCodeContext) {
-      Debug.WriteLine("Thread.CanSetNextStatement");
-
-      // For now, we just don't support this.
-      return VSConstants.S_FALSE;
-    }
-
-    public int SetNextStatement(IDebugStackFrame2 pStackFrame,
-                                IDebugCodeContext2 pCodeContext) {
-      Debug.WriteLine("Thread.SetNextStatement");
-      throw new NotImplementedException();
-    }
-
-    public int GetThreadId(out uint pdwThreadId) {
-      Debug.WriteLine("Thread.GetThreadId");
-      pdwThreadId = tid_;
-      return VSConstants.S_OK;
-    }
-
-    public int Suspend(out uint pdwSuspendCount) {
-      Debug.WriteLine("Thread.Suspend");
-      throw new NotImplementedException();
-    }
-
-    public int Resume(out uint pdwSuspendCount) {
-      Debug.WriteLine("Thread.Resume");
-      throw new NotImplementedException();
-    }
-
-    public int GetThreadProperties(enum_THREADPROPERTY_FIELDS dwFields,
-                                   THREADPROPERTIES[] ptp) {
-      Debug.WriteLine("Thread.GetThreadProperties");
-      if (dwFields.HasFlag(enum_THREADPROPERTY_FIELDS.TPF_ID)) {
-        ptp[0].dwThreadId = tid_;
-      }
-      if (dwFields.HasFlag(enum_THREADPROPERTY_FIELDS.TPF_NAME)) {
-        ptp[0].bstrName = name_;
-      }
-
-      // The following properties are currently bogus.
-      //
-      if (dwFields.HasFlag(enum_THREADPROPERTY_FIELDS.TPF_LOCATION)) {
-        ptp[0].bstrLocation = "THREADPROPERTY: Location";
-      }
-      if (dwFields.HasFlag(enum_THREADPROPERTY_FIELDS.TPF_PRIORITY)) {
-        ptp[0].bstrPriority = "THREADPROPERTY: Priority";
-      }
-      if (dwFields.HasFlag(enum_THREADPROPERTY_FIELDS.TPF_STATE)) {
-        ptp[0].dwThreadState = (uint) enum_THREADSTATE.THREADSTATE_STOPPED;
-      }
-      if (dwFields.HasFlag(enum_THREADPROPERTY_FIELDS.TPF_SUSPENDCOUNT)) {
-        ptp[0].dwSuspendCount = 1;
-      }
-
-      ptp[0].dwFields = dwFields;
-
-      return VSConstants.S_OK;
-    }
-
-    public int GetLogicalThread(IDebugStackFrame2 pStackFrame,
-                                out IDebugLogicalThread2 ppLogicalThread) {
-      Debug.WriteLine("Thread.GetLogicalThread");
-      throw new NotImplementedException();
-    }
-
-    #endregion
-
-    #region Private Implementation
-
-    private readonly ProgramNode program_;
-
-    private readonly List<StackFrame> stack_ = new List<StackFrame>();
-    private readonly uint tid_;
-    private string name_;
-
-    #endregion
-
-    /// <summary>
-    ///   Gets the frame information for the current stack frame.  This means
-    ///   getting a snapshot of the register state for each each frame in the
-    ///   stack so that memory address information can be derived at a later
-    ///   stage.
-    /// </summary>
-    /// <param name = "stack"></param>
-    protected void RefreshFrameInfo(List<StackFrame> stack) {
-      stack.Clear();
-      var regs = (RegsX86_64) program_.Dbg.GetRegisters(tid_);
-      var rset = new RegisterSet(RegisterSetSchema.DwarfAmd64Integer, null);
-
-      // TODO: need a less hacky way to initialize a RegisterSet from a 
-      // RegsX86_64.
-      foreach (
-          var registerDef in
-              RegisterSetSchema.DwarfAmd64Integer.Registers) {
-        if (!registerDef.Pseudo) {
-          rset[registerDef.Index] = regs[registerDef.Index];
-        }
-      }
-      while (rset["RIP"] != 0) {
-        stack.Add(new StackFrame(rset, this, program_.MainModule, program_.Dbg));
-        // Get the register values of the previous frame.
-        var sym = program_.Dbg.Symbols as NaClSymbolProvider;
-        var nextRset = sym.GetPreviousFrameState(rset);
-        // The toolchain creates a dummy frame at the outermost scope.  Gdb
-        // has some way to get past the dummy frame, but strict application of
-        // the DWARF spec makes it look circular to us.  TODO: investigate why
-        if (nextRset == null || nextRset["RIP"] == rset["RIP"]) {
-          break;
-        }
-        rset = nextRset;
-      }
-    }
-  }
-}