98 lines
2.6 KiB
Mathematica
98 lines
2.6 KiB
Mathematica
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// OSSReachabilityManager.m
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//
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// Created by 亿刀 on 14-1-9.
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// Edited by junmo on 15-5-16
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// Edited by zhouzhuo on 2016/5/22
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// Copyright (c) 2014 Twitter. All rights reserved.
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//
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#import "OSSReachabilityManager.h"
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#import "OSSIPv6Adapter.h"
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#import "OSSLog.h"
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#import <arpa/inet.h>
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#import <CommonCrypto/CommonDigest.h>
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#import <CoreTelephony/CTCarrier.h>
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#import <CoreTelephony/CTTelephonyNetworkInfo.h>
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#import <ifaddrs.h>
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#import <netdb.h>
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#import <netinet/in.h>
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#import <netinet6/in6.h>
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#import <sys/socket.h>
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#import <SystemConfiguration/CaptiveNetwork.h>
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#import <SystemConfiguration/SystemConfiguration.h>
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static char *const OSSReachabilityQueueIdentifier = "com.alibaba.oss.network.ReachabilityQueue";
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static dispatch_queue_t reachabilityQueue;
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static NSString *const CHECK_HOSTNAME = @"www.taobao.com";
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@implementation OSSReachabilityManager {
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SCNetworkReachabilityRef _reachabilityRef;
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}
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+ (OSSReachabilityManager *)shareInstance
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{
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static OSSReachabilityManager *s_SPDYNetworkStatusManager = nil;
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@synchronized([self class])
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{
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if (!s_SPDYNetworkStatusManager)
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{
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s_SPDYNetworkStatusManager = [[OSSReachabilityManager alloc] init];
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}
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}
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return s_SPDYNetworkStatusManager;
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}
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- (id)init
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{
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self = [super init];
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if (self)
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{
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_reachabilityRef = SCNetworkReachabilityCreateWithName(NULL, [CHECK_HOSTNAME UTF8String]);
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// Start network monitor
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[self _startNotifier];
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}
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return self;
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}
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- (BOOL)_startNotifier
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{
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if (!_reachabilityRef)
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{
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_reachabilityRef = SCNetworkReachabilityCreateWithName(NULL, [CHECK_HOSTNAME UTF8String]);
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}
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if (_reachabilityRef)
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{
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SCNetworkReachabilityContext context = {0, (__bridge void *)(self), NULL, NULL, NULL};
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if(SCNetworkReachabilitySetCallback(_reachabilityRef, ReachabilityCallback, &context))
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{
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reachabilityQueue = dispatch_queue_create(OSSReachabilityQueueIdentifier, DISPATCH_QUEUE_SERIAL);
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SCNetworkReachabilitySetDispatchQueue(_reachabilityRef, reachabilityQueue);
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return YES;
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}
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}
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return NO;
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}
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// Callback of Network change
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static void ReachabilityCallback(SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void* info)
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{
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if ([[OSSIPv6Adapter getInstance] isIPv6OnlyNetwork]) {
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OSSLogDebug(@"[AlicloudReachabilityManager]: Network changed, Pre network status is IPv6-Only.");
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} else {
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OSSLogDebug(@"[AlicloudReachabilityManager]: Network changed, Pre network status is not IPv6-Only.");
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}
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[[OSSIPv6Adapter getInstance] reResolveIPv6OnlyStatus];
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}
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@end
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