真的iPhone设备上有'getStreamsToHost'吗？

Question

我想用服务器的示例代码将NSOutputStream写入服务器:

NSURL *website = [NSURL URLWithString:str_IP];
NSHost *host = [NSHost hostWithName:[website host]];
[NSStream getStreamsToHost:host port:1100 inputStream:nil outputStream:&oStream];
[oStream retain];
[oStream setDelegate:self];
[oStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
[oStream open];

这些代码在iPhone模拟器上运行良好,但是当我将它构建到真实设备时.弹出两个警告.问题是:

1)类NSHost不属于iphone os库

2)也找不到getStreamsToHost

对可以在真实设备上使用的替代方法或类的任何建议？

Answer 1

由于CFWriteStream是免费桥接到NSOutputStream,您可以使用CFStreamCreatePairWithSocketToHost来获取您的流对:

CFReadStreamRef readStream = NULL;
CFWriteStreamRef writeStream = NULL;
CFStreamCreatePairWithSocketToHost(kCFAllocatorDefault, (CFStringRef)host, port, &readStream, &writeStream);
if (readStream && writeStream) {
    CFReadStreamSetProperty(readStream, kCFStreamPropertyShouldCloseNativeSocket, kCFBooleanTrue);
    CFWriteStreamSetProperty(writeStream, kCFStreamPropertyShouldCloseNativeSocket, kCFBooleanTrue);

    inputStream = (NSInputStream *)readStream;
    [inputStream retain];
    [inputStream setDelegate:self];
    [inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [inputStream open];

    outputStream = (NSOutputStream *)writeStream;
    [outputStream retain];
    [outputStream setDelegate:self];
    [outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [outputStream open];
}

if (readStream)
    CFRelease(readStream);

if (writeStream)
    CFRelease(writeStream);