C++ Process::GetThreadList方法代码示例

SBError SBThread::ResumeNewPlan(ExecutionContext &exe_ctx,
                                ThreadPlan *new_plan) {
  SBError sb_error;

  Process *process = exe_ctx.GetProcessPtr();
  if (!process) {
    sb_error.SetErrorString("No process in SBThread::ResumeNewPlan");
    return sb_error;
  }

  Thread *thread = exe_ctx.GetThreadPtr();
  if (!thread) {
    sb_error.SetErrorString("No thread in SBThread::ResumeNewPlan");
    return sb_error;
  }

  // User level plans should be Master Plans so they can be interrupted, other
  // plans executed, and
  // then a "continue" will resume the plan.
  if (new_plan != NULL) {
    new_plan->SetIsMasterPlan(true);
    new_plan->SetOkayToDiscard(false);
  }

  // Why do we need to set the current thread by ID here???
  process->GetThreadList().SetSelectedThreadByID(thread->GetID());

  if (process->GetTarget().GetDebugger().GetAsyncExecution())
    sb_error.ref() = process->Resume();
  else
    sb_error.ref() = process->ResumeSynchronous(NULL);

  return sb_error;
}

StackFrame*
lldb_private::formatters::GetViableFrame (ExecutionContext exe_ctx)
{
    StackFrame* frame = exe_ctx.GetFramePtr();
    if (frame)
        return frame;
    
    Process* process = exe_ctx.GetProcessPtr();
    if (!process)
        return nullptr;
    
    ThreadSP thread_sp(process->GetThreadList().GetSelectedThread());
    if (thread_sp)
        return thread_sp->GetSelectedFrame().get();
    return nullptr;
}

size_t
Thread::GetStatus (Stream &strm, uint32_t start_frame, uint32_t num_frames, uint32_t num_frames_with_source)
{
    ExecutionContext exe_ctx (shared_from_this());
    Target *target = exe_ctx.GetTargetPtr();
    Process *process = exe_ctx.GetProcessPtr();
    size_t num_frames_shown = 0;
    strm.Indent();
    bool is_selected = false;
    if (process)
    {
        if (process->GetThreadList().GetSelectedThread().get() == this)
            is_selected = true;
    }
    strm.Printf("%c ", is_selected ? '*' : ' ');
    if (target && target->GetDebugger().GetUseExternalEditor())
    {
        StackFrameSP frame_sp = GetStackFrameAtIndex(start_frame);
        if (frame_sp)
        {
            SymbolContext frame_sc(frame_sp->GetSymbolContext (eSymbolContextLineEntry));
            if (frame_sc.line_entry.line != 0 && frame_sc.line_entry.file)
            {
                Host::OpenFileInExternalEditor (frame_sc.line_entry.file, frame_sc.line_entry.line);
            }
        }
    }

    DumpUsingSettingsFormat (strm, start_frame);

    if (num_frames > 0)
    {
        strm.IndentMore();

        const bool show_frame_info = true;
        strm.IndentMore ();
        num_frames_shown = GetStackFrameList ()->GetStatus (strm,
                           start_frame,
                           num_frames,
                           show_frame_info,
                           num_frames_with_source);
        strm.IndentLess();
        strm.IndentLess();
    }
    return num_frames_shown;
}

bool
AppleObjCRuntime::GetObjectDescription (Stream &strm, Value &value, ExecutionContextScope *exe_scope)
{
    if (!m_read_objc_library)
        return false;
        
    ExecutionContext exe_ctx;
    exe_scope->CalculateExecutionContext(exe_ctx);
    Process *process = exe_ctx.GetProcessPtr();
    if (!process)
        return false;
    
    // We need other parts of the exe_ctx, but the processes have to match.
    assert (m_process == process);
    
    // Get the function address for the print function.
    const Address *function_address = GetPrintForDebuggerAddr();
    if (!function_address)
        return false;
    
    Target *target = exe_ctx.GetTargetPtr();
    ClangASTType clang_type = value.GetClangType();
    if (clang_type)
    {
        if (!clang_type.IsObjCObjectPointerType())
        {
            strm.Printf ("Value doesn't point to an ObjC object.\n");
            return false;
        }
    }
    else 
    {
        // If it is not a pointer, see if we can make it into a pointer.
        ClangASTContext *ast_context = target->GetScratchClangASTContext();
        ClangASTType opaque_type = ast_context->GetBasicType(eBasicTypeObjCID);
        if (!opaque_type)
            opaque_type = ast_context->GetBasicType(eBasicTypeVoid).GetPointerType();
        //value.SetContext(Value::eContextTypeClangType, opaque_type_ptr);
        value.SetClangType (opaque_type);
    }

    ValueList arg_value_list;
    arg_value_list.PushValue(value);
    
    // This is the return value:
    ClangASTContext *ast_context = target->GetScratchClangASTContext();
    
    ClangASTType return_clang_type = ast_context->GetCStringType(true);
    Value ret;
//    ret.SetContext(Value::eContextTypeClangType, return_clang_type);
    ret.SetClangType (return_clang_type);
    
    if (exe_ctx.GetFramePtr() == NULL)
    {
        Thread *thread = exe_ctx.GetThreadPtr();
        if (thread == NULL)
        {
            exe_ctx.SetThreadSP(process->GetThreadList().GetSelectedThread());
            thread = exe_ctx.GetThreadPtr();
        }
        if (thread)
        {
            exe_ctx.SetFrameSP(thread->GetSelectedFrame());
        }
    }
    
    // Now we're ready to call the function:
    ClangFunction func (*exe_ctx.GetBestExecutionContextScope(),
                        return_clang_type, 
                        *function_address, 
                        arg_value_list);

    StreamString error_stream;
    
    lldb::addr_t wrapper_struct_addr = LLDB_INVALID_ADDRESS;
    func.InsertFunction(exe_ctx, wrapper_struct_addr, error_stream);

    const bool unwind_on_error = true;
    const bool try_all_threads = true;
    const bool stop_others = true;
    const bool ignore_breakpoints = true;
    
    ExecutionResults results = func.ExecuteFunction (exe_ctx, 
                                                     &wrapper_struct_addr, 
                                                     error_stream, 
                                                     stop_others, 
                                                     PO_FUNCTION_TIMEOUT_USEC /* 15 secs timeout */,
                                                     try_all_threads, 
                                                     unwind_on_error,
                                                     ignore_breakpoints,
                                                     ret);
    if (results != eExecutionCompleted)
    {
        strm.Printf("Error evaluating Print Object function: %d.\n", results);
        return false;
    }
       
    addr_t result_ptr = ret.GetScalar().ULongLong(LLDB_INVALID_ADDRESS);
    
    char buf[512];
//.........这里部分代码省略.........

bool
AppleObjCRuntime::GetObjectDescription (Stream &strm, Value &value, ExecutionContextScope *exe_scope)
{
    if (!m_read_objc_library)
        return false;
        
    ExecutionContext exe_ctx;
    exe_scope->CalculateExecutionContext(exe_ctx);
    Process *process = exe_ctx.GetProcessPtr();
    if (!process)
        return false;
    
    // We need other parts of the exe_ctx, but the processes have to match.
    assert (m_process == process);
    
    // Get the function address for the print function.
    const Address *function_address = GetPrintForDebuggerAddr();
    if (!function_address)
        return false;
    
    Target *target = exe_ctx.GetTargetPtr();
    CompilerType compiler_type = value.GetCompilerType();
    if (compiler_type)
    {
        if (!ClangASTContext::IsObjCObjectPointerType(compiler_type))
        {
            strm.Printf ("Value doesn't point to an ObjC object.\n");
            return false;
        }
    }
    else 
    {
        // If it is not a pointer, see if we can make it into a pointer.
        ClangASTContext *ast_context = target->GetScratchClangASTContext();
        CompilerType opaque_type = ast_context->GetBasicType(eBasicTypeObjCID);
        if (!opaque_type)
            opaque_type = ast_context->GetBasicType(eBasicTypeVoid).GetPointerType();
        //value.SetContext(Value::eContextTypeClangType, opaque_type_ptr);
        value.SetCompilerType (opaque_type);
    }

    ValueList arg_value_list;
    arg_value_list.PushValue(value);
    
    // This is the return value:
    ClangASTContext *ast_context = target->GetScratchClangASTContext();
    
    CompilerType return_compiler_type = ast_context->GetCStringType(true);
    Value ret;
//    ret.SetContext(Value::eContextTypeClangType, return_compiler_type);
    ret.SetCompilerType (return_compiler_type);
    
    if (exe_ctx.GetFramePtr() == NULL)
    {
        Thread *thread = exe_ctx.GetThreadPtr();
        if (thread == NULL)
        {
            exe_ctx.SetThreadSP(process->GetThreadList().GetSelectedThread());
            thread = exe_ctx.GetThreadPtr();
        }
        if (thread)
        {
            exe_ctx.SetFrameSP(thread->GetSelectedFrame());
        }
    }
    
    // Now we're ready to call the function:
    
    StreamString error_stream;
    lldb::addr_t wrapper_struct_addr = LLDB_INVALID_ADDRESS;

    if (!m_print_object_caller_up)
    {
        Error error;
         m_print_object_caller_up.reset(exe_scope->CalculateTarget()->GetFunctionCallerForLanguage (eLanguageTypeObjC,
                                                                                                    return_compiler_type,
                                                                                                    *function_address,
                                                                                                    arg_value_list,
                                                                                                    "objc-object-description",
                                                                                                    error));
        if (error.Fail())
        {
            m_print_object_caller_up.reset();
            strm.Printf("Could not get function runner to call print for debugger function: %s.", error.AsCString());
            return false;
        }
        m_print_object_caller_up->InsertFunction(exe_ctx, wrapper_struct_addr, error_stream);
    }
    else
    {
        m_print_object_caller_up->WriteFunctionArguments(exe_ctx,
                                                         wrapper_struct_addr,
                                                         arg_value_list,
                                                         error_stream);
    }

    

    EvaluateExpressionOptions options;
    options.SetUnwindOnError(true);
//.........这里部分代码省略.........