Simplifying debug stuff, as I'm not going to bother with gdb.

src/xenia/debug/debug_client.h

@@ -0,0 +1,88 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_DEBUG_DEBUG_CLIENT_H_
+#define XENIA_DEBUG_DEBUG_CLIENT_H_
+
+#include <memory>
+#include <mutex>
+
+#include "xenia/base/socket.h"
+#include "xenia/base/threading.h"
+#include "xenia/debug/proto/packet_reader.h"
+#include "xenia/debug/proto/packet_writer.h"
+#include "xenia/debug/proto/xdp_protocol.h"
+
+namespace xe {
+namespace debug {
+
+using proto::ModuleListEntry;
+using proto::ThreadListEntry;
+
+enum class ExecutionState {
+  kRunning,
+  kStopped,
+  kExited,
+};
+
+// NOTE: all callbacks are issued on the client thread and should be marshalled
+// to the UI thread. All other methods can be called from any thread.
+
+class ClientListener {
+ public:
+  virtual void OnExecutionStateChanged(ExecutionState execution_state) = 0;
+  virtual void OnModulesUpdated(
+      std::vector<const ModuleListEntry*> entries) = 0;
+  virtual void OnThreadsUpdated(
+      std::vector<const ThreadListEntry*> entries) = 0;
+};
+
+class DebugClient {
+ public:
+  DebugClient();
+  ~DebugClient();
+
+  Socket* socket() const { return socket_.get(); }
+  void set_listener(ClientListener* listener) { listener_ = listener; }
+
+  ExecutionState execution_state() const { return execution_state_; }
+
+  bool Connect(std::string hostname, uint16_t port);
+
+  void Continue();
+  void StepOne(uint32_t thread_id);
+  void StepTo(uint32_t thread_id, uint32_t target_pc);
+  void Interrupt();
+  void Exit();
+
+ private:
+  bool HandleSocketEvent();
+  bool ProcessBuffer(const uint8_t* buffer, size_t buffer_length);
+  bool ProcessPacket(const proto::Packet* packet);
+  void Flush();
+
+  void BeginUpdateAllState();
+
+  std::recursive_mutex mutex_;
+  std::unique_ptr<Socket> socket_;
+  std::unique_ptr<xe::threading::Thread> thread_;
+  std::vector<uint8_t> receive_buffer_;
+
+  proto::PacketReader packet_reader_;
+  proto::PacketWriter packet_writer_;
+
+  ClientListener* listener_ = nullptr;
+
+  ExecutionState execution_state_ = ExecutionState::kStopped;
+};
+
+}  // namespace debug
+}  // namespace xe
+
+#endif  // XENIA_DEBUG_DEBUG_CLIENT_H_