From 14f1b3e8826ce43b978db93a62d1166055db5394 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Mon, 2 Jan 2017 19:26:05 +0000
Subject: Vendor import of lldb trunk r290819:
 https://llvm.org/svn/llvm-project/lldb/trunk@290819

---
 .../Process/Windows/Common/DebuggerThread.h        | 106 +++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 source/Plugins/Process/Windows/Common/DebuggerThread.h

(limited to 'source/Plugins/Process/Windows/Common/DebuggerThread.h')

diff --git a/source/Plugins/Process/Windows/Common/DebuggerThread.h b/source/Plugins/Process/Windows/Common/DebuggerThread.h
new file mode 100644
index 0000000000000..ef4b47bab8c7b
--- /dev/null
+++ b/source/Plugins/Process/Windows/Common/DebuggerThread.h
@@ -0,0 +1,106 @@
+//===-- DebuggerThread.h ----------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef liblldb_Plugins_Process_Windows_DebuggerThread_H_
+#define liblldb_Plugins_Process_Windows_DebuggerThread_H_
+
+#include <atomic>
+#include <memory>
+
+#include "ForwardDecl.h"
+#include "lldb/Host/HostProcess.h"
+#include "lldb/Host/HostThread.h"
+#include "lldb/Host/Predicate.h"
+#include "lldb/Host/windows/windows.h"
+
+namespace lldb_private {
+
+//----------------------------------------------------------------------
+// DebuggerThread
+//
+// Debugs a single process, notifying listeners as appropriate when interesting
+// things occur.
+//----------------------------------------------------------------------
+class DebuggerThread : public std::enable_shared_from_this<DebuggerThread> {
+public:
+  DebuggerThread(DebugDelegateSP debug_delegate);
+  virtual ~DebuggerThread();
+
+  Error DebugLaunch(const ProcessLaunchInfo &launch_info);
+  Error DebugAttach(lldb::pid_t pid, const ProcessAttachInfo &attach_info);
+
+  HostProcess GetProcess() const { return m_process; }
+  HostThread GetMainThread() const { return m_main_thread; }
+  std::weak_ptr<ExceptionRecord> GetActiveException() {
+    return m_active_exception;
+  }
+
+  Error StopDebugging(bool terminate);
+
+  void ContinueAsyncException(ExceptionResult result);
+
+private:
+  void FreeProcessHandles();
+  void DebugLoop();
+  ExceptionResult HandleExceptionEvent(const EXCEPTION_DEBUG_INFO &info,
+                                       DWORD thread_id);
+  DWORD HandleCreateThreadEvent(const CREATE_THREAD_DEBUG_INFO &info,
+                                DWORD thread_id);
+  DWORD HandleCreateProcessEvent(const CREATE_PROCESS_DEBUG_INFO &info,
+                                 DWORD thread_id);
+  DWORD HandleExitThreadEvent(const EXIT_THREAD_DEBUG_INFO &info,
+                              DWORD thread_id);
+  DWORD HandleExitProcessEvent(const EXIT_PROCESS_DEBUG_INFO &info,
+                               DWORD thread_id);
+  DWORD HandleLoadDllEvent(const LOAD_DLL_DEBUG_INFO &info, DWORD thread_id);
+  DWORD HandleUnloadDllEvent(const UNLOAD_DLL_DEBUG_INFO &info,
+                             DWORD thread_id);
+  DWORD HandleODSEvent(const OUTPUT_DEBUG_STRING_INFO &info, DWORD thread_id);
+  DWORD HandleRipEvent(const RIP_INFO &info, DWORD thread_id);
+
+  DebugDelegateSP m_debug_delegate;
+
+  HostProcess m_process;    // The process being debugged.
+  HostThread m_main_thread; // The main thread of the inferior.
+
+  // The image file of the process being debugged.
+  HANDLE m_image_file = nullptr;
+
+  // The current exception waiting to be handled
+  ExceptionRecordSP m_active_exception;
+
+  // A predicate which gets signalled when an exception is finished processing
+  // and the debug loop can be continued.
+  Predicate<ExceptionResult> m_exception_pred;
+
+  // An event which gets signalled by the debugger thread when it exits the
+  // debugger loop and is detached from the inferior.
+  HANDLE m_debugging_ended_event = nullptr;
+
+  // Signals the loop to detach from the process (specified by pid).
+  std::atomic<DWORD> m_pid_to_detach;
+
+  // Signals the debug loop to stop processing certain types of events that
+  // block shutdown.
+  std::atomic<bool> m_is_shutting_down;
+
+  // Indicates we've detached from the inferior process and the debug loop can
+  // exit.
+  bool m_detached = false;
+
+  static lldb::thread_result_t DebuggerThreadLaunchRoutine(void *data);
+  lldb::thread_result_t
+  DebuggerThreadLaunchRoutine(const ProcessLaunchInfo &launch_info);
+  static lldb::thread_result_t DebuggerThreadAttachRoutine(void *data);
+  lldb::thread_result_t
+  DebuggerThreadAttachRoutine(lldb::pid_t pid,
+                              const ProcessAttachInfo &launch_info);
+};
+}
+#endif
-- 
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