Package socket provides a low-level network connection type which integrates with Go's runtime network poller to provide asynchronous I/O and deadline support. This package focuses on UNIX-like operating systems which make use of BSD sockets system call APIs. It is meant to be used as a foundation for the creation of operating system-specific socket packages, for socket families such as Linux's AF_NETLINK, AF_PACKET, or AF_VSOCK. This package should not be used directly in end user applications. Any use of package socket should be guarded by build tags, as one would also use when importing the syscall or golang.org/x/sys packages.