3 * Copyright 2014, Google Inc.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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28 #if !defined(__has_feature) || !__has_feature(objc_arc)
29 #error "This file requires ARC support."
32 #import "RTCDataChannel+Internal.h"
34 #include "talk/app/webrtc/datachannelinterface.h"
38 class RTCDataChannelObserver : public DataChannelObserver {
40 RTCDataChannelObserver(RTCDataChannel* channel) { _channel = channel; }
42 virtual void OnStateChange() OVERRIDE {
43 [_channel.delegate channelDidChangeState:_channel];
46 virtual void OnMessage(const DataBuffer& buffer) OVERRIDE {
47 if (!_channel.delegate) {
50 RTCDataBuffer* dataBuffer =
51 [[RTCDataBuffer alloc] initWithDataBuffer:buffer];
52 [_channel.delegate channel:_channel didReceiveMessageWithBuffer:dataBuffer];
56 __weak RTCDataChannel* _channel;
60 // TODO(tkchin): move to shared location
61 NSString* NSStringFromStdString(const std::string& stdString) {
62 // std::string may contain null termination character so we construct
64 return [[NSString alloc] initWithBytes:stdString.data()
65 length:stdString.length()
66 encoding:NSUTF8StringEncoding];
69 std::string StdStringFromNSString(NSString* nsString) {
70 NSData* charData = [nsString dataUsingEncoding:NSUTF8StringEncoding];
71 return std::string(reinterpret_cast<const char*>([charData bytes]),
75 @implementation RTCDataChannelInit {
76 webrtc::DataChannelInit _dataChannelInit;
80 return _dataChannelInit.ordered;
83 - (void)setIsOrdered:(BOOL)isOrdered {
84 _dataChannelInit.ordered = isOrdered;
87 - (NSInteger)maxRetransmitTime {
88 return _dataChannelInit.maxRetransmitTime;
91 - (void)setMaxRetransmitTime:(NSInteger)maxRetransmitTime {
92 _dataChannelInit.maxRetransmitTime = maxRetransmitTime;
95 - (NSInteger)maxRetransmits {
96 return _dataChannelInit.maxRetransmits;
99 - (void)setMaxRetransmits:(NSInteger)maxRetransmits {
100 _dataChannelInit.maxRetransmits = maxRetransmits;
103 - (NSString*)protocol {
104 return NSStringFromStdString(_dataChannelInit.protocol);
107 - (void)setProtocol:(NSString*)protocol {
108 _dataChannelInit.protocol = StdStringFromNSString(protocol);
111 - (BOOL)isNegotiated {
112 return _dataChannelInit.negotiated;
115 - (void)setIsNegotiated:(BOOL)isNegotiated {
116 _dataChannelInit.negotiated = isNegotiated;
119 - (NSInteger)streamId {
120 return _dataChannelInit.id;
123 - (void)setStreamId:(NSInteger)streamId {
124 _dataChannelInit.id = streamId;
129 @implementation RTCDataChannelInit (Internal)
131 - (const webrtc::DataChannelInit*)dataChannelInit {
132 return &_dataChannelInit;
137 @implementation RTCDataBuffer {
138 talk_base::scoped_ptr<webrtc::DataBuffer> _dataBuffer;
141 - (instancetype)initWithData:(NSData*)data isBinary:(BOOL)isBinary {
142 NSAssert(data, @"data cannot be nil");
143 if (self = [super init]) {
144 talk_base::Buffer buffer([data bytes], [data length]);
145 _dataBuffer.reset(new webrtc::DataBuffer(buffer, isBinary));
151 return [NSData dataWithBytes:_dataBuffer->data.data()
152 length:_dataBuffer->data.length()];
156 return _dataBuffer->binary;
161 @implementation RTCDataBuffer (Internal)
163 - (instancetype)initWithDataBuffer:(const webrtc::DataBuffer&)buffer {
164 if (self = [super init]) {
165 _dataBuffer.reset(new webrtc::DataBuffer(buffer));
170 - (const webrtc::DataBuffer*)dataBuffer {
171 return _dataBuffer.get();
176 @implementation RTCDataChannel {
177 talk_base::scoped_refptr<webrtc::DataChannelInterface> _dataChannel;
178 talk_base::scoped_ptr<webrtc::RTCDataChannelObserver> _observer;
179 BOOL _isObserverRegistered;
183 return NSStringFromStdString(_dataChannel->label());
187 return _dataChannel->reliable();
191 return _dataChannel->ordered();
194 - (NSUInteger)maxRetransmitTimeMs {
195 return _dataChannel->maxRetransmitTime();
198 - (NSUInteger)maxRetransmits {
199 return _dataChannel->maxRetransmits();
202 - (NSString*)protocol {
203 return NSStringFromStdString(_dataChannel->protocol());
206 - (BOOL)isNegotiated {
207 return _dataChannel->negotiated();
210 - (NSInteger)streamId {
211 return _dataChannel->id();
214 - (RTCDataChannelState)state {
215 switch (_dataChannel->state()) {
216 case webrtc::DataChannelInterface::DataState::kConnecting:
217 return kRTCDataChannelStateConnecting;
218 case webrtc::DataChannelInterface::DataState::kOpen:
219 return kRTCDataChannelStateOpen;
220 case webrtc::DataChannelInterface::DataState::kClosing:
221 return kRTCDataChannelStateClosing;
222 case webrtc::DataChannelInterface::DataState::kClosed:
223 return kRTCDataChannelStateClosed;
227 - (NSUInteger)bufferedAmount {
228 return _dataChannel->buffered_amount();
231 - (void)setDelegate:(id<RTCDataChannelDelegate>)delegate {
232 if (_delegate == delegate) {
235 if (_isObserverRegistered) {
236 _dataChannel->UnregisterObserver();
237 _isObserverRegistered = NO;
239 _delegate = delegate;
241 _dataChannel->RegisterObserver(_observer.get());
242 _isObserverRegistered = YES;
247 _dataChannel->Close();
250 - (BOOL)sendData:(RTCDataBuffer*)data {
251 return _dataChannel->Send(*data.dataBuffer);
256 @implementation RTCDataChannel (Internal)
258 - (instancetype)initWithDataChannel:
259 (talk_base::scoped_refptr<webrtc::DataChannelInterface>)
261 NSAssert(dataChannel != NULL, @"dataChannel cannot be NULL");
262 if (self = [super init]) {
263 _dataChannel = dataChannel;
264 _observer.reset(new webrtc::RTCDataChannelObserver(self));
269 - (talk_base::scoped_refptr<webrtc::DataChannelInterface>)dataChannel {