1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
* Copyright 2020 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#import "RTCNetworkMonitor+Private.h"
#import <Network/Network.h>
#import "base/RTCLogging.h"
#import "helpers/RTCDispatcher+Private.h"
#include "rtc_base/string_utils.h"
namespace {
rtc::AdapterType AdapterTypeFromInterfaceType(
nw_interface_type_t interfaceType) {
rtc::AdapterType adapterType = rtc::ADAPTER_TYPE_UNKNOWN;
switch (interfaceType) {
case nw_interface_type_other:
adapterType = rtc::ADAPTER_TYPE_UNKNOWN;
break;
case nw_interface_type_wifi:
adapterType = rtc::ADAPTER_TYPE_WIFI;
break;
case nw_interface_type_cellular:
adapterType = rtc::ADAPTER_TYPE_CELLULAR;
break;
case nw_interface_type_wired:
adapterType = rtc::ADAPTER_TYPE_ETHERNET;
break;
case nw_interface_type_loopback:
adapterType = rtc::ADAPTER_TYPE_LOOPBACK;
break;
default:
adapterType = rtc::ADAPTER_TYPE_UNKNOWN;
break;
}
return adapterType;
}
} // namespace
@implementation RTCNetworkMonitor {
webrtc::NetworkMonitorObserver *_observer;
nw_path_monitor_t _pathMonitor;
dispatch_queue_t _monitorQueue;
}
- (instancetype)initWithObserver:(webrtc::NetworkMonitorObserver *)observer {
RTC_DCHECK(observer);
self = [super init];
if (self) {
_observer = observer;
if (@available(iOS 12, *)) {
_pathMonitor = nw_path_monitor_create();
if (_pathMonitor == nil) {
RTCLog(@"nw_path_monitor_create failed.");
return nil;
}
RTCLog(@"NW path monitor created.");
__weak RTCNetworkMonitor *weakSelf = self;
nw_path_monitor_set_update_handler(_pathMonitor, ^(nw_path_t path) {
RTCNetworkMonitor *strongSelf = weakSelf;
if (strongSelf == nil) {
return;
}
RTCLog(@"NW path monitor: updated.");
nw_path_status_t status = nw_path_get_status(path);
if (status == nw_path_status_invalid) {
RTCLog(@"NW path monitor status: invalid.");
} else if (status == nw_path_status_unsatisfied) {
RTCLog(@"NW path monitor status: unsatisfied.");
} else if (status == nw_path_status_satisfied) {
RTCLog(@"NW path monitor status: satisfied.");
} else if (status == nw_path_status_satisfiable) {
RTCLog(@"NW path monitor status: satisfiable.");
}
std::map<std::string, rtc::AdapterType, rtc::AbslStringViewCmp>
owned_map;
auto map = &owned_map; // Capture raw pointer for Objective-C block
nw_path_enumerate_interfaces(path, ^(nw_interface_t interface) {
const char *name = nw_interface_get_name(interface);
nw_interface_type_t interfaceType = nw_interface_get_type(interface);
RTCLog(@"NW path monitor available interface: %s", name);
rtc::AdapterType adapterType =
AdapterTypeFromInterfaceType(interfaceType);
map->emplace(name, adapterType);
return true;
});
@synchronized(strongSelf) {
webrtc::NetworkMonitorObserver *observer = strongSelf->_observer;
if (observer) {
observer->OnPathUpdate(std::move(owned_map));
}
}
});
nw_path_monitor_set_queue(
_pathMonitor,
[RTC_OBJC_TYPE(RTCDispatcher)
dispatchQueueForType:RTCDispatcherTypeNetworkMonitor]);
nw_path_monitor_start(_pathMonitor);
}
}
return self;
}
- (void)cancel {
if (@available(iOS 12, *)) {
nw_path_monitor_cancel(_pathMonitor);
}
}
- (void)stop {
[self cancel];
@synchronized(self) {
_observer = nil;
}
}
- (void)dealloc {
[self cancel];
}
@end
|
