Hi, I am using a Multicast socket to receive UDP datagrams on Cygwin. I thought the sockets in Cygwin were blocking by defect (that is, the program waits at recvfrom() until it read something on the socket). However, my program does not wait, it keeps running. I didn't use fcntl or any other instruction to make the socket non-blocking, is there any way to make the socket blocking?
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