1 /* 2 * Copyright 2016 The WebRTC Project Authors. All rights reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef RTC_BASE_NETWORK_ROUTE_H_ 12 #define RTC_BASE_NETWORK_ROUTE_H_ 13 14 #include <stdint.h> 15 16 #include <string> 17 18 #include "rtc_base/network_constants.h" 19 #include "rtc_base/strings/string_builder.h" 20 #include "rtc_base/system/inline.h" 21 22 // TODO(honghaiz): Make a directory that describes the interfaces and structs 23 // the media code can rely on and the network code can implement, and both can 24 // depend on that, but not depend on each other. Then, move this file to that 25 // directory. 26 namespace rtc { 27 28 class RouteEndpoint { 29 public: RouteEndpoint()30 RouteEndpoint() {} // Used by tests. RouteEndpoint(AdapterType adapter_type,uint16_t adapter_id,uint16_t network_id,bool uses_turn)31 RouteEndpoint(AdapterType adapter_type, 32 uint16_t adapter_id, 33 uint16_t network_id, 34 bool uses_turn) 35 : adapter_type_(adapter_type), 36 adapter_id_(adapter_id), 37 network_id_(network_id), 38 uses_turn_(uses_turn) {} 39 40 RouteEndpoint(const RouteEndpoint&) = default; 41 RouteEndpoint& operator=(const RouteEndpoint&) = default; 42 43 // Used by tests. CreateWithNetworkId(uint16_t network_id)44 static RouteEndpoint CreateWithNetworkId(uint16_t network_id) { 45 return RouteEndpoint(ADAPTER_TYPE_UNKNOWN, 46 /* adapter_id = */ 0, network_id, 47 /* uses_turn = */ false); 48 } CreateWithTurn(bool uses_turn)49 RouteEndpoint CreateWithTurn(bool uses_turn) const { 50 return RouteEndpoint(adapter_type_, adapter_id_, network_id_, uses_turn); 51 } 52 adapter_type()53 AdapterType adapter_type() const { return adapter_type_; } adapter_id()54 uint16_t adapter_id() const { return adapter_id_; } network_id()55 uint16_t network_id() const { return network_id_; } uses_turn()56 bool uses_turn() const { return uses_turn_; } 57 58 bool operator==(const RouteEndpoint& other) const; 59 60 private: 61 AdapterType adapter_type_ = ADAPTER_TYPE_UNKNOWN; 62 uint16_t adapter_id_ = 0; 63 uint16_t network_id_ = 0; 64 bool uses_turn_ = false; 65 }; 66 67 struct NetworkRoute { 68 bool connected = false; 69 RouteEndpoint local; 70 RouteEndpoint remote; 71 // Last packet id sent on the PREVIOUS route. 72 int last_sent_packet_id = -1; 73 // The overhead in bytes from IP layer and above. 74 // This is the maximum of any part of the route. 75 int packet_overhead = 0; 76 DebugStringNetworkRoute77 RTC_NO_INLINE inline std::string DebugString() const { 78 rtc::StringBuilder oss; 79 oss << "[ connected: " << connected << " local: [ " << local.adapter_id() 80 << "/" << local.network_id() << " " 81 << AdapterTypeToString(local.adapter_type()) 82 << " turn: " << local.uses_turn() << " ] remote: [ " 83 << remote.adapter_id() << "/" << remote.network_id() << " " 84 << AdapterTypeToString(remote.adapter_type()) 85 << " turn: " << remote.uses_turn() 86 << " ] packet_overhead_bytes: " << packet_overhead << " ]"; 87 return oss.Release(); 88 } 89 90 bool operator==(const NetworkRoute& other) const; 91 }; 92 93 } // namespace rtc 94 95 #endif // RTC_BASE_NETWORK_ROUTE_H_ 96