如何在 iPhone 上的 TCP 连接上禁用 Nagle 算法

发布于 2024-09-08 00:26:05 字数 582 浏览 7 评论 0原文

我正在构建一个套接字，使用


CFStreamCreatePairWithSocketToHost(kCFAllocatorDefault,
                                       (CFStringRef) yourHostAsNSString,
                                       yourPortAsInteger,
                                       &myReadStream,
                                       &myWriteStream);

and I see that when I send a messages with "myWriteStream" it concatenate few message together and then send them. I think it happens because of the Nagle algorithm and I want to disable it. Does any one knows how to do it?

原文

I'm building a socket , using


CFStreamCreatePairWithSocketToHost(kCFAllocatorDefault,
                                       (CFStringRef) yourHostAsNSString,
                                       yourPortAsInteger,
                                       &myReadStream,
                                       &myWriteStream);

and I see that when I send a messages with "myWriteStream" it concatenate few message together and then send them.
I think it happens because of the Nagle algorithm and I want to disable it.
Does any one knows how to do it?

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故事与诗 2024-09-15 00:26:05

不保证这会解决您的问题，但如果您想禁用 Nagle 算法，您需要从流中获取本机套接字并调用 setsockopt。

CFDataRef nativeSocket = CFWriteStreamCopyProperty(myWriteStream, kCFStreamPropertySocketNativeHandle);
CFSocketNativeHandle *sock = (CFSocketNativeHandle *)CFDataGetBytePtr(nativeSocket);
setsockopt(*sock, IPPROTO_TCP, TCP_NODELAY, &(int){ 1 }, sizeof(int));
CFRelease(nativeSocket);

（向 Mike Ash 大声喊出复合文字< /a> 技巧。）

No guarantee this will fix your problem, but if you want to disable the Nagle algorithm, you need to get the native socket from the stream and call setsockopt.

CFDataRef nativeSocket = CFWriteStreamCopyProperty(myWriteStream, kCFStreamPropertySocketNativeHandle);
CFSocketNativeHandle *sock = (CFSocketNativeHandle *)CFDataGetBytePtr(nativeSocket);
setsockopt(*sock, IPPROTO_TCP, TCP_NODELAY, &(int){ 1 }, sizeof(int));
CFRelease(nativeSocket);

(Shout out to Mike Ash for the compound literal trick.)

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