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// Copyright 2019 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 CAST_COMMON_CHANNEL_VIRTUAL_CONNECTION_MANAGER_H_
#define CAST_COMMON_CHANNEL_VIRTUAL_CONNECTION_MANAGER_H_
#include <cstdint>
#include <map>
#include <string>
#include "absl/types/optional.h"
#include "cast/common/channel/virtual_connection.h"
namespace openscreen {
namespace cast {
// Maintains a collection of open VirtualConnections and associated data.
class VirtualConnectionManager {
public:
VirtualConnectionManager();
~VirtualConnectionManager();
void AddConnection(VirtualConnection virtual_connection,
VirtualConnection::AssociatedData associated_data);
// Returns true if a connection matching |virtual_connection| was found and
// removed.
bool RemoveConnection(const VirtualConnection& virtual_connection,
VirtualConnection::CloseReason reason);
// Returns the number of connections removed.
size_t RemoveConnectionsByLocalId(const std::string& local_id,
VirtualConnection::CloseReason reason);
size_t RemoveConnectionsBySocketId(int32_t socket_id,
VirtualConnection::CloseReason reason);
// Returns the AssociatedData for |virtual_connection| if a connection exists,
// nullopt otherwise. The pointer isn't stable in the long term, so if it
// actually needs to be stored for later, the caller should make a copy.
absl::optional<const VirtualConnection::AssociatedData*> GetConnectionData(
const VirtualConnection& virtual_connection) const;
private:
// This struct simply stores the remainder of the data {VirtualConnection,
// VirtVirtualConnection::AssociatedData} that is not broken up into map keys
// for |connections_|.
struct VCTail {
std::string peer_id;
VirtualConnection::AssociatedData data;
};
std::map<int32_t /* socket_id */,
std::multimap<std::string /* local_id */, VCTail>>
connections_;
};
} // namespace cast
} // namespace openscreen
#endif // CAST_COMMON_CHANNEL_VIRTUAL_CONNECTION_MANAGER_H_
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