mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-15 15:16:12 -04:00
120 lines
3.6 KiB
C++
120 lines
3.6 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 PLATFORM_BASE_SOCKET_H_
|
|
#define PLATFORM_BASE_SOCKET_H_
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
#include <utility>
|
|
|
|
#include "absl/container/flat_hash_map.h"
|
|
#include "absl/container/flat_hash_set.h"
|
|
#include "absl/functional/any_invocable.h"
|
|
#include "internal/platform/byte_array.h"
|
|
#include "internal/platform/exception.h"
|
|
#include "internal/platform/input_stream.h"
|
|
#include "internal/platform/output_stream.h"
|
|
#include "proto/connections_enums.pb.h"
|
|
|
|
namespace nearby {
|
|
|
|
// A socket is an endpoint for communication between two machines.
|
|
//
|
|
// https://docs.oracle.com/javase/8/docs/api/java/net/Socket.html
|
|
class Socket {
|
|
public:
|
|
virtual ~Socket() = default;
|
|
|
|
virtual InputStream& GetInputStream() = 0;
|
|
virtual OutputStream& GetOutputStream() = 0;
|
|
virtual Exception Close() = 0;
|
|
};
|
|
|
|
class MediumSocket : public Socket {
|
|
public:
|
|
explicit MediumSocket(location::nearby::proto::connections::Medium medium)
|
|
: medium_(medium) {}
|
|
~MediumSocket() override = default;
|
|
|
|
/** Returns the medium of the socket. */
|
|
virtual location::nearby::proto::connections::Medium GetMedium() const {
|
|
return medium_;
|
|
}
|
|
|
|
/** Creates a virtual socket only with outputstream. */
|
|
virtual MediumSocket* CreateVirtualSocket(OutputStream* outputstream) {
|
|
return this;
|
|
}
|
|
|
|
/** Creates a virtual socket. */
|
|
virtual MediumSocket* CreateVirtualSocket(
|
|
const std::string& salted_service_id_hash_key, OutputStream* outputstream,
|
|
location::nearby::proto::connections::Medium medium,
|
|
absl::flat_hash_map<std::string, std::shared_ptr<MediumSocket>>*
|
|
virtual_sockets_ptr) {
|
|
return this;
|
|
}
|
|
|
|
/** Feeds the received incoming data to the client. */
|
|
virtual void FeedIncomingData(ByteArray data) {
|
|
// NEARBY_LOGS(INFO) << "FeedIncomingData: do nothing";
|
|
}
|
|
|
|
/** Returns true if the socket is a virtual socket. */
|
|
virtual bool IsVirtualSocket() {
|
|
return false;
|
|
}
|
|
|
|
/** Adds a listener to be invoked when the socket is closed. */
|
|
void AddOnSocketClosedListener(
|
|
std::unique_ptr<absl::AnyInvocable<void()>> socket_closed_listener) {
|
|
socket_closed_listeners_.insert(std::move(socket_closed_listener));
|
|
}
|
|
|
|
/** Adds a listener to be invoked when the multiplex socket is enabled. */
|
|
void RegisterMultiplexEnabledCallback(
|
|
std::shared_ptr<absl::AnyInvocable<void()>> callback) {
|
|
multiplex_socket_enabled_cbs_.insert(std::move(callback));
|
|
}
|
|
|
|
/** Enables the multiplex socket. */
|
|
void EnableMultiplexSocket() {
|
|
if (!IsVirtualSocket()) {
|
|
return;
|
|
}
|
|
for (auto& callback : multiplex_socket_enabled_cbs_) {
|
|
(*callback)();
|
|
}
|
|
}
|
|
|
|
/** Closes the local socket. */
|
|
void CloseLocal() {
|
|
for (auto& listener : socket_closed_listeners_) {
|
|
(*listener)();
|
|
}
|
|
}
|
|
|
|
private:
|
|
location::nearby::proto::connections::Medium medium_;
|
|
absl::flat_hash_set<std::shared_ptr<absl::AnyInvocable<void()>>>
|
|
socket_closed_listeners_;
|
|
absl::flat_hash_set<std::shared_ptr<absl::AnyInvocable<void()>>>
|
|
multiplex_socket_enabled_cbs_;
|
|
};
|
|
|
|
} // namespace nearby
|
|
|
|
#endif // PLATFORM_BASE_SOCKET_H_
|