在使用socket过程中出现了一些问题。最后终于解决了bug，在这里和大家分享一下。
使用SocketRocket ，下载下来库文件进行使用的时候，直接导入的库，出现了一下问题。
Apple Mach-O Linker (ld) Error Group
1、"_utf8_nextCharSafeBody", referenced from:
2、clang: error: linker command failed with exit code 1 (use -v to see invocation)
出现这些情况是因为引用这块出了问题，
最后需要导入库文件，
在项目targets中选择build phases选项中link binary with libaries 中添加 libicucore.tbd可解决这个错误。
如使用的是cocopods导入的SocketRocket。
则会出现三个警告。
Semantic Issue Group
1、/............../Pods/SocketRocket/SocketRocket/SRWebSocket.m:509:5: Ignoring return value of function declared with 'warn_unused_result' attribute
2、/............../Pods/SocketRocket/SocketRocket/SRWebSocket.m:629:13: Enumeration value 'NSURLNetworkServiceTypeCallSignaling' not handled in switch
3、/............../Pods/SocketRocket/SocketRocket/SRWebSocket.m:1485:9: Ignoring return value of function declared with 'warn_unused_result' attribute
1、SecRandomCopyBytes(kSecRandomDefault, keyBytes.length, keyBytes.mutableBytes);
解决办法：在前面加上（void）即如下所示：
(void)SecRandomCopyBytes(kSecRandomDefault, keyBytes.length, keyBytes.mutableBytes);
替换掉就可以了
2、switch(requestNetworkServiceType) {
caseNSURLNetworkServiceTypeDefault:
break;
caseNSURLNetworkServiceTypeVoIP: {
networkServiceType =NSStreamNetworkServiceTypeVoIP;
#if TARGET_OS_IPHONE && __IPHONE_9_0
if(floor(NSFoundationVersionNumber) >NSFoundationVersionNumber_iOS_8_3) {
staticdispatch_once_tpredicate;
dispatch_once(&predicate, ^{
NSLog(@"SocketRocket: %@ - this service type is deprecated in favor of using PushKit for VoIP control", networkServiceType);
});
}
#endif
break;
}
caseNSURLNetworkServiceTypeVideo:
networkServiceType =NSStreamNetworkServiceTypeVideo;
break;
caseNSURLNetworkServiceTypeBackground:
networkServiceType =NSStreamNetworkServiceTypeBackground;
break;
caseNSURLNetworkServiceTypeVoice:
networkServiceType =NSStreamNetworkServiceTypeVoice;
break;
}
解决办法：在后面加上default 即如下所示：
switch(requestNetworkServiceType) {
caseNSURLNetworkServiceTypeDefault:
break;
caseNSURLNetworkServiceTypeVoIP: {
networkServiceType =NSStreamNetworkServiceTypeVoIP;
#if TARGET_OS_IPHONE && __IPHONE_9_0
if(floor(NSFoundationVersionNumber) >NSFoundationVersionNumber_iOS_8_3) {
staticdispatch_once_tpredicate;
dispatch_once(&predicate, ^{
NSLog(@"SocketRocket: %@ - this service type is deprecated in favor of using PushKit for VoIP control", networkServiceType);
});
}
#endif
break;
}
caseNSURLNetworkServiceTypeVideo:
networkServiceType =NSStreamNetworkServiceTypeVideo;
break;
caseNSURLNetworkServiceTypeBackground:
networkServiceType =NSStreamNetworkServiceTypeBackground;
break;
caseNSURLNetworkServiceTypeVoice:
networkServiceType =NSStreamNetworkServiceTypeVoice;
break;
default:
break;
}
3、SecRandomCopyBytes(kSecRandomDefault,sizeof(uint32_t), (uint8_t*)mask_key);
解决办法：在前面加上（void）即如下所示：
(void)SecRandomCopyBytes(kSecRandomDefault,sizeof(uint32_t), (uint8_t*)mask_key);
替换掉就可以了
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