尊龙凯时人生就是搏

Ïàʶ Linux linkwatch Àú³ÌµÄÊÂÇé»úÖƺ͹¦Ð§Ìصã

Ïàʶ Linux linkwatch Àú³ÌµÄÊÂÇé»úÖƺ͹¦Ð§Ìصã

ÔÚ Linux ²Ù×÷ϵͳÖÐ £¬linkwatch Àú³ÌÊÇÒ»¸öÌØÊâµÄÊØ»¤Àú³Ì £¬ÆäÖ÷Òª×÷ÓÃÊǼà¿ØÍøÂç½Ó¿ÚµÄ״̬ת±ä £¬ÈçÍøÂçÅþÁ¬µÄ½¨ÉèºÍ¶Ï¿ª¡£linkwatch Àú³Ìͨ¹ý¼àÌý Linux ÄÚºËÖÐµÄ NETLINK_ROUTE Ì×½Ó×Ö £¬ÊµÊ±»ñÈ¡ÍøÂç½Ó¿ÚµÄ״̬ÐÅÏ¢ £¬²¢×ö³öÏìÓ¦µÄ´¦Àí¡£

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linkwatch Àú³ÌµÄÊÂÇé»úÖÆ¿ÉÒÔ¼òÆÓÐÎòΪÒÔϼ¸¸ö°ì·¨£º

linkwatch Àú³Ìͨ¹ý NETLINK_ROUTE Ì×½Ó×Ö¶©ÔĶÔÍøÂç½Ó¿Ú״̬ת±äµÄ֪ͨÐÂÎÅ¡£

µ±ÓÐÍøÂç½Ó¿Ú״̬±¬·¢×ª±äʱ £¬Äں˽«Ïà¹Ø֪ͨÐÂÎÅ·¢Ë͵½ NETLINK_ROUTE Ì×½Ó×Ö £¬linkwatch Àú³ÌÎüÊÕµ½ÐÂÎŲ¢¾ÙÐд¦Àí¡£

linkwatch Àú³Ìƾ֤ÎüÊÕµ½µÄÐÂÎÅÄÚÈÝ £¬ÅжÏÊÇÍøÂç½Ó¿ÚµÄÅþÁ¬½¨ÉèÕվɶϿª £¬²¢¾ÙÐÐÏìÓ¦µÄ²Ù×÷ £¬Èç¸üзÓÉ±í¡¢Í¨ÖªÆäËûÀú³ÌµÈ¡£

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linkwatch Àú³ÌµÄ¹¦Ð§Ö÷ÒªÌåÏÖÔÚÒÔϼ¸¸ö·½Ã棺

ʵʱ¼à¿ØÍøÂç½Ó¿Ú״̬£ºlinkwatch Àú³Ì¿ÉÒÔʵʱ¸ÐÖªµ½ÍøÂçÅþÁ¬µÄת±ä £¬°ü¹ÜϵͳÔÚÍøÂç״̬±¬·¢×ª±äʱÄܹ»×ö³öÏìÓ¦¡£

¸üзÓÉ±í£ºµ±ÍøÂç½Ó¿Ú״̬±¬·¢×ª±äʱ £¬linkwatch Àú³Ì¿ÉÒÔƾ֤¹æÔò¸üÐÂϵͳµÄ·Óɱí £¬È·±£Êý¾Ý°ü¿ÉÒÔÕý³£´«Êä¡£

֪ͨÆäËûÀú³Ì£ºlinkwatch Àú³Ì¿ÉÒÔ½«ÍøÂç½Ó¿Ú״̬ת±äµÄÐÅϢ֪ͨ¸øÆäËûÏà¹ØµÄÀú³Ì £¬ÒÔ±ãËüÃǾÙÐÐÏìÓ¦µÄ´¦Àí¡£

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ÒÔÏÂΪһ¸ö¼òÆ Python ´úÂëʾÀý £¬Ä£Äâ linkwatch Àú³ÌÎüÊÕµ½ÍøÂç½Ó¿Ú״̬ת±äµÄ֪ͨÐÂÎŲ¢¾ÙÐд¦Àí£º

import socket
import struct

def receive_linkwatch_notification():
    linkwatch_socket = socket.socket(socket.AF_NETLINK, socket.SOCK_RAW, socket.NETLINK_ROUTE)
    linkwatch_socket.bind((0, 0))

    while True:
        data = linkwatch_socket.recv(65535)
        msg_type, msg_len, flags, seq, pid = struct.unpack("=IHHII", data[:16])

        if msg_type == 16:  # RTM_NEWLINK or RTM_DELLINK
            print("Received link status change notification.")
            # Handle the link status change here...

if __name__ == "__main__":
    receive_linkwatch_notification()

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