NSURLRequest和NSURLConnection的Core Foundation等价物

Question

我知道NSUrl已经连接到CFUrl。什么是NSURLRequest和NSURLConnection的Core Foundation等价物，因此我可以使用纯C对CFUrl对象执行某些操作？

Answer 1

Core Foundation中没有NSURLRequest和NSURLConnection的直接等价物，但您可以在CFNetwork中使用较低级别的CFHTTP函数。

例如，

CFHTTPMessageRef myRequest = CFHTTPMessageCreateRequest(kCFAllocatorDefault,
        requestMethod, myUrl, kCFHTTPVersion1_1);
CFHTTPMessageSetBody(myRequest, bodyData);
CFHTTPMessageSetHeaderFieldValue(myRequest, headerField, value);

CFReadStreamRef myReadStream = CFReadStreamCreateForHTTPRequest(kCFAllocatorDefault, myRequest);

CFReadStreamOpen(myReadStream);

CFHTTPMessageRef myResponse = CFReadStreamCopyProperty(myReadStream, kCFStreamPropertyHTTPResponseHeader);