Move RCTNetInfo iOS to Facebook internal
Summary: This is the only remaining part of NetInfo that's in open source. Moving it to FB internal. Reviewed By: motiz88 Differential Revision: D17343031 fbshipit-source-id: 482a2daa397aa9f1391a72775735027de996ddb3
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/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import <SystemConfiguration/SystemConfiguration.h>
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#import <React/RCTEventEmitter.h>
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@interface RCTNetInfo : RCTEventEmitter
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- (instancetype)initWithHost:(NSString *)host;
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@end
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/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import <React/RCTNetInfo.h>
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#if !TARGET_OS_TV && !TARGET_OS_UIKITFORMAC
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#import <CoreTelephony/CTTelephonyNetworkInfo.h>
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#endif
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#import <React/RCTAssert.h>
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#import <React/RCTBridge.h>
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#import <React/RCTEventDispatcher.h>
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// Based on the ConnectionType enum described in the W3C Network Information API spec
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// (https://wicg.github.io/netinfo/).
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static NSString *const RCTConnectionTypeUnknown = @"unknown";
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static NSString *const RCTConnectionTypeNone = @"none";
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static NSString *const RCTConnectionTypeWifi = @"wifi";
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static NSString *const RCTConnectionTypeCellular = @"cellular";
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// Based on the EffectiveConnectionType enum described in the W3C Network Information API spec
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// (https://wicg.github.io/netinfo/).
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static NSString *const RCTEffectiveConnectionTypeUnknown = @"unknown";
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static NSString *const RCTEffectiveConnectionType2g = @"2g";
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static NSString *const RCTEffectiveConnectionType3g = @"3g";
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static NSString *const RCTEffectiveConnectionType4g = @"4g";
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// The RCTReachabilityState* values are deprecated.
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static NSString *const RCTReachabilityStateUnknown = @"unknown";
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static NSString *const RCTReachabilityStateNone = @"none";
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static NSString *const RCTReachabilityStateWifi = @"wifi";
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static NSString *const RCTReachabilityStateCell = @"cell";
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@implementation RCTNetInfo
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{
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SCNetworkReachabilityRef _firstTimeReachability;
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SCNetworkReachabilityRef _reachability;
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NSString *_connectionType;
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NSString *_effectiveConnectionType;
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NSString *_statusDeprecated;
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NSString *_host;
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BOOL _isObserving;
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RCTPromiseResolveBlock _resolve;
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}
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RCT_EXPORT_MODULE()
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static void RCTReachabilityCallback(__unused SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void *info)
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{
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RCTNetInfo *self = (__bridge id)info;
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BOOL didSetReachabilityFlags = [self setReachabilityStatus:flags];
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NSString *connectionType = self->_connectionType ?: RCTConnectionTypeUnknown;
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NSString *effectiveConnectionType = self->_effectiveConnectionType ?: RCTEffectiveConnectionTypeUnknown;
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NSString *networkInfo = self->_statusDeprecated ?: RCTReachabilityStateUnknown;
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if (self->_firstTimeReachability && self->_resolve) {
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SCNetworkReachabilityUnscheduleFromRunLoop(self->_firstTimeReachability, CFRunLoopGetMain(), kCFRunLoopCommonModes);
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CFRelease(self->_firstTimeReachability);
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self->_resolve(@{@"connectionType": connectionType,
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@"effectiveConnectionType": effectiveConnectionType,
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@"network_info": networkInfo});
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self->_firstTimeReachability = nil;
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self->_resolve = nil;
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}
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if (didSetReachabilityFlags && self->_isObserving) {
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[self sendEventWithName:@"networkStatusDidChange" body:@{@"connectionType": connectionType,
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@"effectiveConnectionType": effectiveConnectionType,
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@"network_info": networkInfo}];
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}
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}
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// We need RCTReachabilityCallback's and module methods to be called on the same thread so that we can have
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// guarantees about when we mess with the reachability callbacks.
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- (dispatch_queue_t)methodQueue
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{
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return dispatch_get_main_queue();
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}
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#pragma mark - Lifecycle
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- (instancetype)initWithHost:(NSString *)host
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{
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RCTAssertParam(host);
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RCTAssert(![host hasPrefix:@"http"], @"Host value should just contain the domain, not the URL scheme.");
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if ((self = [self init])) {
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_host = [host copy];
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}
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return self;
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}
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- (NSArray<NSString *> *)supportedEvents
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{
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return @[@"networkStatusDidChange"];
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}
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- (void)startObserving
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{
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_isObserving = YES;
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_connectionType = RCTConnectionTypeUnknown;
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_effectiveConnectionType = RCTEffectiveConnectionTypeUnknown;
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_statusDeprecated = RCTReachabilityStateUnknown;
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_reachability = [self getReachabilityRef];
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}
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- (void)stopObserving
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{
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_isObserving = NO;
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if (_reachability) {
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SCNetworkReachabilityUnscheduleFromRunLoop(_reachability, CFRunLoopGetMain(), kCFRunLoopCommonModes);
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CFRelease(_reachability);
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}
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}
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- (void)dealloc
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{
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if (_firstTimeReachability) {
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SCNetworkReachabilityUnscheduleFromRunLoop(self->_firstTimeReachability, CFRunLoopGetMain(), kCFRunLoopCommonModes);
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CFRelease(self->_firstTimeReachability);
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_firstTimeReachability = nil;
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_resolve = nil;
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}
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}
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- (SCNetworkReachabilityRef)getReachabilityRef
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{
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SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithName(kCFAllocatorDefault, _host.UTF8String ?: "apple.com");
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SCNetworkReachabilityContext context = { 0, ( __bridge void *)self, NULL, NULL, NULL };
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SCNetworkReachabilitySetCallback(reachability, RCTReachabilityCallback, &context);
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SCNetworkReachabilityScheduleWithRunLoop(reachability, CFRunLoopGetMain(), kCFRunLoopCommonModes);
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return reachability;
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}
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- (BOOL)setReachabilityStatus:(SCNetworkReachabilityFlags)flags
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{
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NSString *connectionType = RCTConnectionTypeUnknown;
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NSString *effectiveConnectionType = RCTEffectiveConnectionTypeUnknown;
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NSString *status = RCTReachabilityStateUnknown;
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if ((flags & kSCNetworkReachabilityFlagsReachable) == 0 ||
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(flags & kSCNetworkReachabilityFlagsConnectionRequired) != 0) {
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connectionType = RCTConnectionTypeNone;
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status = RCTReachabilityStateNone;
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}
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#if !TARGET_OS_TV && !TARGET_OS_UIKITFORMAC
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else if ((flags & kSCNetworkReachabilityFlagsIsWWAN) != 0) {
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connectionType = RCTConnectionTypeCellular;
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status = RCTReachabilityStateCell;
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CTTelephonyNetworkInfo *netinfo = [[CTTelephonyNetworkInfo alloc] init];
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if (netinfo) {
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if ([netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyGPRS] ||
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[netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyEdge] ||
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[netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyCDMA1x]) {
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effectiveConnectionType = RCTEffectiveConnectionType2g;
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} else if ([netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyWCDMA] ||
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[netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyHSDPA] ||
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[netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyHSUPA] ||
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[netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyCDMAEVDORev0] ||
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[netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyCDMAEVDORevA] ||
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[netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyCDMAEVDORevB] ||
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[netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyeHRPD]) {
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effectiveConnectionType = RCTEffectiveConnectionType3g;
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} else if ([netinfo.currentRadioAccessTechnology isEqualToString:CTRadioAccessTechnologyLTE]) {
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effectiveConnectionType = RCTEffectiveConnectionType4g;
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}
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}
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}
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#endif
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else {
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connectionType = RCTConnectionTypeWifi;
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status = RCTReachabilityStateWifi;
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}
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if (![connectionType isEqualToString:self->_connectionType] ||
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![effectiveConnectionType isEqualToString:self->_effectiveConnectionType] ||
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![status isEqualToString:self->_statusDeprecated]) {
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self->_connectionType = connectionType;
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self->_effectiveConnectionType = effectiveConnectionType;
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self->_statusDeprecated = status;
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return YES;
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}
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return NO;
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}
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#pragma mark - Public API
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RCT_EXPORT_METHOD(getCurrentConnectivity:(RCTPromiseResolveBlock)resolve
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reject:(__unused RCTPromiseRejectBlock)reject)
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{
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if (_firstTimeReachability) {
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SCNetworkReachabilityUnscheduleFromRunLoop(self->_firstTimeReachability, CFRunLoopGetMain(), kCFRunLoopCommonModes);
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CFRelease(self->_firstTimeReachability);
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_firstTimeReachability = nil;
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_resolve = nil;
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}
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_firstTimeReachability = [self getReachabilityRef];
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_resolve = resolve;
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}
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@end
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