Debugger wire protocol: setting breakpoints

runtime/bin/dbg_connection.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef BIN_DBG_CONNECTION_H_
 #define BIN_DBG_CONNECTION_H_
 
 #include "bin/builtin.h"
 #include "bin/utils.h"
 
 #include "include/dart_debugger_api.h"
 
 #include "platform/globals.h"
+#include "platform/json.h"
 #include "platform/thread.h"
 // Declare the OS-specific types ahead of defining the generic class.
 #if defined(TARGET_OS_LINUX)
 #include "bin/dbg_connection_linux.h"
 #elif defined(TARGET_OS_MACOS)
 #include "bin/dbg_connection_macos.h"
 #elif defined(TARGET_OS_WINDOWS)
 #include "bin/dbg_connection_win.h"
 #else
 #error Unknown target os.
 #endif
 
 
 class MessageBuffer;
 
 class DebuggerConnectionHandler {
  public:
   ~DebuggerConnectionHandler();
   static void StartHandler(const char* address, int port_number);
 
   static bool IsConnected() {
     return debugger_fd_ >= 0;
   }
 
  private:
+  static void SendMsg(dart::TextBuffer* msg);
+  static void QueueMsg(dart::TextBuffer* msg);
+  static void SendQueuedMsgs();
+
   static void SendBreakpointEvent(Dart_Breakpoint bpt, Dart_StackTrace trace);
+  static void BptResolvedHandler(intptr_t bp_id,
+                                 Dart_Handle url,
+                                 intptr_t line_number);
   static void BreakpointHandler(Dart_Breakpoint bpt, Dart_StackTrace trace);
 
   static void AcceptDbgConnection(int debug_fd);
   static void CloseDbgConnection();
 
   static void HandleMessages();
   static void HandleResumeCmd(const char* msg);
   static void HandleStepIntoCmd(const char* msg);
   static void HandleStepOverCmd(const char* msg);
   static void HandleStepOutCmd(const char* msg);
   static void HandleGetLibraryURLsCmd(const char* json_msg);
   static void HandleGetScriptURLsCmd(const char* json_msg);
+  static void HandleGetStackTraceCmd(const char* json_msg);
+  static void HandleSetBpCmd(const char* json_msg);
+  static void HandleUnknownMsg(const char* json_msg);
 
   static void SendError(int msg_id, const char* err_msg);
 
+  // Text buffer that accumulates messages to be sent to front end.
+  static dart::TextBuffer queued_messages_;
+
   static bool handler_started_;
 
   static bool request_resume_;
 
   // The socket that is listening for incoming debugger connections.
   // This descriptor is created and closed by a VM thread.
   static int listener_fd_;
 
   // The socket that connects with the debugger client.
   // The descriptor is created by the debugger connection thread and
   // closed by a VM thread.
   static int debugger_fd_;
 
   // The VM thread waits on this condition variable when it reaches a
   // breakpoint and the debugger client has not connected yet.
   static dart::Monitor is_connected_;
 
   static MessageBuffer* msgbuf_;
 
   friend class DebuggerConnectionImpl;
 
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(DebuggerConnectionHandler);
 };
 
 #endif  // BIN_DBG_CONNECTION_H_