connection_collection.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_SHELL_PLATFORM_DARWIN_IOS_FRAMEWORK_SOURCE_CONNECTION_COLLECTION_H_
#define FLUTTER_SHELL_PLATFORM_DARWIN_IOS_FRAMEWORK_SOURCE_CONNECTION_COLLECTION_H_
 
#include <cstdint>
#include <map>
#include <string>
 
namespace flutter {
 
/// Maintains a current integer assigned to a name (connections).
class ConnectionCollection {
 public:
  typedef int64_t Connection;
  static const Connection kInvalidConnection = 0;
 
  Connection AquireConnection(const std::string& name);
  ///\returns the name of the channel when cleanup is successful, otherwise
  ///         the empty string.
  std::string CleanupConnection(Connection connection);
 
  static bool IsValidConnection(Connection connection);
 
  static Connection MakeErrorConnection(int errCode);
 
 private:
  std::map<std::string, Connection> connections_;
  Connection counter_ = 0;
};
 
}  // namespace flutter
 
#endif  // FLUTTER_SHELL_PLATFORM_DARWIN_IOS_FRAMEWORK_SOURCE_CONNECTION_COLLECTION_H_