mojo/application/public/cpp/lib/service_connector_registry.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MOJO_APPLICATION_PUBLIC_CPP_LIB_SERVICE_CONNECTOR_REGISTRY_H_
   6 #define MOJO_APPLICATION_PUBLIC_CPP_LIB_SERVICE_CONNECTOR_REGISTRY_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "mojo/public/cpp/system/message_pipe.h"
  12
  13 namespace mojo {
  14
  15 class ApplicationConnection;
  16 class ServiceConnector;
  17
  18 namespace internal {
  19
  20 // ServiceConnectorRegistry maintains a default ServiceConnector as well as at
  21 // most one ServiceConnector per interface name. When ConnectToService() is
  22 // invoked the ServiceConnector registered by name is given the request. If
  23 // a ServiceConnector has not been registered by name than the default
  24 // ServiceConnector is given the request.
  25 class ServiceConnectorRegistry {
  26  public:
  27   ServiceConnectorRegistry();
  28   ~ServiceConnectorRegistry();
  29
  30   // Sets the default ServiceConnector. ServiceConnectorRegistry does *not*
  31   // take ownership of |service_connector|.
  32   void set_service_connector(ServiceConnector* service_connector) {
  33     service_connector_ = service_connector;
  34   }
  35
  36   // Returns true if non ServiceConnectors have been registered by name.
  37   bool empty() const { return name_to_service_connector_.empty(); }
  38
  39   // Sets a ServiceConnector by name. This deletes the existing ServiceConnector
  40   // and takes ownership of |service_connector|.
  41   void SetServiceConnectorForName(ServiceConnector* service_connector,
  42                                   const std::string& interface_name);
  43   void RemoveServiceConnectorForName(const std::string& interface_name);
  44
  45   void ConnectToService(ApplicationConnection* application_connection,
  46                         const std::string& interface_name,
  47                         ScopedMessagePipeHandle client_handle);
  48
  49  private:
  50   using NameToServiceConnectorMap = std::map<std::string, ServiceConnector*>;
  51
  52   ServiceConnector* service_connector_;
  53
  54   NameToServiceConnectorMap name_to_service_connector_;
  55
  56   MOJO_DISALLOW_COPY_AND_ASSIGN(ServiceConnectorRegistry);
  57 };
  58
  59 }  // namespace internal
  60 }  // namespace mojo
  61
  62 #endif  // MOJO_APPLICATION_PUBLIC_CPP_LIB_SERVICE_CONNECTOR_REGISTRY_H_