Files
nearby/cpp/core/internal/endpoint_channel.h
T
Alexey Polyudov b724d792dd OSS Fixes
Signed-off-by: Alexey Polyudov <apolyudov@google.com>
Change-Id: I9a7d3c3d9790dc58c0d4c2bd2134499337b9a17b
2020-10-22 11:25:32 -07:00

91 lines
3.0 KiB
C++

// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef CORE_INTERNAL_ENDPOINT_CHANNEL_H_
#define CORE_INTERNAL_ENDPOINT_CHANNEL_H_
#include <cstdint>
#include <string>
#include "platform/base/byte_array.h"
#include "platform/base/exception.h"
#include "platform/public/mutex.h"
#include "proto/connections_enums.pb.h"
#include "securegcm/d2d_connection_context_v1.h"
#include "absl/time/clock.h"
namespace location {
namespace nearby {
namespace connections {
class EndpointChannel {
public:
virtual ~EndpointChannel() = default;
using EncryptionContext = ::securegcm::D2DConnectionContextV1;
virtual ExceptionOr<ByteArray>
Read() = 0; // throws Exception::IO, Exception::INTERRUPTED
virtual Exception Write(const ByteArray& data) = 0; // throws Exception::IO
// Closes this EndpointChannel, without tracking the closure in analytics.
virtual void Close() = 0;
// Closes this EndpointChannel and records the closure with the given reason.
virtual void Close(proto::connections::DisconnectionReason reason) = 0;
// Returns a one-word type descriptor for the concrete EndpointChannel
// implementation that can be used in log messages; eg: BLUETOOTH, BLE, WIFI.
virtual std::string GetType() const = 0;
// Returns the name of the EndpointChannel.
virtual std::string GetName() const = 0;
// Returns the analytics enum representing the medium of this EndpointChannel.
virtual proto::connections::Medium GetMedium() const = 0;
// Enables encryption on the EndpointChannel.
virtual void EnableEncryption(std::shared_ptr<EncryptionContext> context) = 0;
// True if the EndpointChannel is currently pausing all writes.
virtual bool IsPaused() const = 0;
// Pauses all writes on this EndpointChannel until resume() is called.
virtual void Pause() = 0;
// Resumes any writes on this EndpointChannel that were suspended when pause()
// was called.
virtual void Resume() = 0;
// Returns the timestamp of the last read from this endpoint, or -1 if no
// reads have occurred.
virtual absl::Time GetLastReadTimestamp() const = 0;
};
inline bool operator==(const EndpointChannel& lhs, const EndpointChannel& rhs) {
return (lhs.GetType() == rhs.GetType()) && (lhs.GetName() == rhs.GetName()) &&
(lhs.GetMedium() == rhs.GetMedium());
}
inline bool operator!=(const EndpointChannel& lhs, const EndpointChannel& rhs) {
return !(lhs == rhs);
}
} // namespace connections
} // namespace nearby
} // namespace location
#endif // CORE_INTERNAL_ENDPOINT_CHANNEL_H_