def get_socket_info(self, openr=open):
        sockstat = {}
        try:
            with openr('/proc/net/sockstat', 'r') as proc_sockstat:
                for entry in proc_sockstat:
                    if entry.startswith("TCP: inuse"):
                        tcpstats = entry.split()
                        sockstat['tcp_in_use'] = int(tcpstats[2])
                        sockstat['orphan'] = int(tcpstats[4])
                        sockstat['time_wait'] = int(tcpstats[6])
                        sockstat['tcp_mem_allocated_bytes'] = \
                            int(tcpstats[10]) * getpagesize()
        except IOError as e:
            if e.errno != errno.ENOENT:
                raise
        try:
            with openr('/proc/net/sockstat6', 'r') as proc_sockstat6:
                for entry in proc_sockstat6:
                    if entry.startswith("TCP6: inuse"):
                        sockstat['tcp6_in_use'] = int(entry.split()[2])
        except IOError as e:
            if e.errno != errno.ENOENT:
                raise
        return sockstat
get info from /proc/net/sockstat and sockstat6
dataset/ETHPy150Open openstack/swift/swift/common/middleware/recon.py/ReconMiddleware.get_socket_info