1 files changed, 68 insertions, 0 deletions
diff --git a/source/Plugins/Process/Windows/Live/LocalDebugDelegate.h b/source/Plugins/Process/Windows/Live/LocalDebugDelegate.h
new file mode 100644
index 000000000000..ec2f9418142f
--- /dev/null
+++ b/source/Plugins/Process/Windows/Live/LocalDebugDelegate.h
@@ -0,0 +1,68 @@
+//===-- LocalDebugDelegate.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_LocalDebugDelegate_H_
+#define liblldb_Plugins_Process_Windows_LocalDebugDelegate_H_
+
+#include <memory>
+
+#include "IDebugDelegate.h"
+
+#include "lldb/lldb-forward.h"
+
+namespace lldb_private
+{
+
+class ProcessWindowsLive;
+typedef std::shared_ptr<ProcessWindowsLive> ProcessWindowsLiveSP;
+
+//----------------------------------------------------------------------
+// LocalDebugDelegate
+//
+// LocalDebugDelegate creates a connection between a ProcessWindowsLive and the
+// debug driver.  This serves to decouple ProcessWindowsLive from the debug driver.
+// It would be possible to get a similar decoupling by just having
+// ProcessWindowsLive implement this interface directly.  There are two reasons why
+// we don't do this:
+//
+// 1) In the future when we add support for local debugging through LLGS, and we
+//    go through the Native*Protocol interface, it is likely we will need the
+//    additional flexibility provided by this sort of adapter pattern.
+// 2) LLDB holds a shared_ptr to the ProcessWindows, and our driver thread
+//    needs access to it as well.  To avoid a race condition, we want to make
+//    sure that we're also holding onto a shared_ptr.
+//    lldb_private::Process supports enable_shared_from_this, but that gives us
+//    a ProcessSP (which is exactly what we are trying to decouple from the
+//    driver), so this adapter serves as a way to transparently hold the
+//    ProcessSP while still keeping it decoupled from the driver.
+//----------------------------------------------------------------------
+class LocalDebugDelegate : public IDebugDelegate
+{
+  public:
+    explicit LocalDebugDelegate(lldb::ProcessWP process);
+
+    void OnExitProcess(uint32_t exit_code) override;
+    void OnDebuggerConnected(lldb::addr_t image_base) override;
+    ExceptionResult OnDebugException(bool first_chance, const ExceptionRecord &record) override;
+    void OnCreateThread(const HostThread &thread) override;
+    void OnExitThread(lldb::tid_t thread_id, uint32_t exit_code) override;
+    void OnLoadDll(const lldb_private::ModuleSpec &module_spec, lldb::addr_t module_addr) override;
+    void OnUnloadDll(lldb::addr_t module_addr) override;
+    void OnDebugString(const std::string &message) override;
+    void OnDebuggerError(const Error &error, uint32_t type) override;
+
+  private:
+    ProcessWindowsLiveSP
+    GetProcessPointer();
+
+    lldb::ProcessWP m_process;
+};
+}
+
+#endif