Ruby AncillaryData.timestamp用法及代碼示例

將時間戳作為時間對象返回。

ancillarydata 應該是以下類型之一：

• SOL_SOCKET/SCM_TIMESTAMP(微秒)GNU/Linux、FreeBSD、NetBSD、OpenBSD、Solaris、MacOS X

• SOL_SOCKET/SCM_TIMESTAMPNS(納秒)GNU/Linux

• SOL_SOCKET/SCM_BINTIME(2**(-64)秒)FreeBSD

  Addrinfo.udp (“127.0.0.1”, 0).bind {|s1|

  Addrinfo.udp("127.0.0.1", 0).bind {|s2|
    s1.setsockopt(:SOCKET, :TIMESTAMP, true)
    s2.send "a", 0, s1.local_address
    ctl = s1.recvmsg.last
    p ctl    #=> #<Socket::AncillaryData: INET SOCKET TIMESTAMP 2009-02-24 17:35:46.775581>
    t = ctl.timestamp
    p t      #=> 2009-02-24 17:35:46 +0900
    p t.usec #=> 775581
    p t.nsec #=> 775581000
  }

  }