isolate_name_server.h

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// Copyright 2013 The Flutter 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 FLUTTER_LIB_UI_ISOLATE_NAME_SERVER_ISOLATE_NAME_SERVER_H_
#define FLUTTER_LIB_UI_ISOLATE_NAME_SERVER_ISOLATE_NAME_SERVER_H_
 
#include <map>
#include <mutex>
#include <string>
 
#include "flutter/fml/macros.h"
#include "third_party/dart/runtime/include/dart_api.h"
 
namespace flutter {
 
class IsolateNameServer {
 public:
  IsolateNameServer();
 
  ~IsolateNameServer();
 
  // Looks up the Dart_Port associated with a given name. Returns ILLEGAL_PORT
  // if the name does not exist.
  Dart_PortEx LookupIsolatePortByName(const std::string& name);
 
  // Registers a Dart_Port with a given name. Returns true if registration is
  // successful, false if the name entry already exists.
  bool RegisterIsolatePortWithName(Dart_PortEx port, const std::string& name);
 
  // Removes a name to Dart_Port mapping given a name. Returns true if the
  // mapping was successfully removed, false if the mapping does not exist.
  bool RemoveIsolateNameMapping(const std::string& name);
 
 private:
  Dart_PortEx LookupIsolatePortByNameUnprotected(const std::string& name);
 
  mutable std::mutex mutex_;
  std::map<std::string, Dart_PortEx> port_mapping_;
 
  FML_DISALLOW_COPY_AND_ASSIGN(IsolateNameServer);
};
 
}  // namespace flutter
 
#endif  // FLUTTER_LIB_UI_ISOLATE_NAME_SERVER_ISOLATE_NAME_SERVER_H_