Mojo Spy core first cut

mojo/service_manager/service_manager.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_SERVICE_MANAGER_SERVICE_MANAGER_H_
 #define MOJO_SERVICE_MANAGER_SERVICE_MANAGER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 21 matching lines @@
 
     explicit TestAPI(ServiceManager* manager) : manager_(manager) {}
     // Returns true if the shared instance has been created.
     static bool HasCreatedInstance();
     // Returns true if there is a ServiceFactory for this URL.
     bool HasFactoryForURL(const GURL& url) const;
 
     ServiceManager* manager_;
   };
 
+  // Interface class for debugging only.
+  class Interceptor {
+   public:
+    virtual ~Interceptor() {}
+    // Called when ServiceManager::Connect is called.
+    virtual ScopedMessagePipeHandle OnConnectToClient(
+        const GURL& url, ScopedMessagePipeHandle handle) = 0;
+  };
+
   ServiceManager();
   ~ServiceManager();
 
   // Returns a shared instance, creating it if necessary.
   static ServiceManager* GetInstance();
 
   // Loads a service if necessary and establishes a new client connection.
   void Connect(const GURL& url, ScopedMessagePipeHandle client_handle);
 
   // Sets the default Loader to be used if not overridden by
   // SetLoaderForURL() or SetLoaderForScheme().
   // Does not take ownership of |loader|.
   void set_default_loader(ServiceLoader* loader) { default_loader_ = loader; }
   // Sets a Loader to be used for a specific url.
   // Does not take ownership of |loader|.
   void SetLoaderForURL(ServiceLoader* loader, const GURL& url);
   // Sets a Loader to be used for a specific url scheme.
   // Does not take ownership of |loader|.
   void SetLoaderForScheme(ServiceLoader* loader, const std::string& scheme);
+  // Allows to interpose a debugger to service connections.
+  void SetInterceptor(Interceptor* interceptor);
 
  private:
   class ServiceFactory;
   typedef std::map<std::string, ServiceLoader*> SchemeToLoaderMap;
   typedef std::map<GURL, ServiceLoader*> URLToLoaderMap;
   typedef std::map<GURL, ServiceFactory*> URLToServiceFactoryMap;
 
   // Returns the Loader to use for a url (using default if not overridden.)
   // The preference is to use a loader that's been specified for an url first,
   // then one that's been specified for a scheme, then the default.
   ServiceLoader* GetLoaderForURL(const GURL& url);
 
   // Removes a ServiceFactory when it no longer has any connections.
   void OnServiceFactoryError(ServiceFactory* service_factory);
 
   // Loader management.
   URLToLoaderMap url_to_loader_;
   SchemeToLoaderMap scheme_to_loader_;
   ServiceLoader* default_loader_;
+  Interceptor* interceptor_;
 
   URLToServiceFactoryMap url_to_service_factory_;
   DISALLOW_COPY_AND_ASSIGN(ServiceManager);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICE_MANAGER_SERVICE_MANAGER_H_