asurveyofucoslwip-全文預(yù)覽
【正文】 ication NETLAB TASK 2 (data input) TASK 3 (tcpip_thread) mbox TASK 1 (application 1) recvmbox acceptmbox TASK N (application N) recvmbox acceptmbox Multi Application NETLAB API types ? TYPE 1 ? BIND, LISTEN, CLOSE ? TYPE 2 ? CONNECT ? TYPE 3 ? SEND. WRITE ? TYPE 4 ? ACCEPT, RECV NETLAB TASK 1 TYPE 1 TASK 2 mbox 1 2 3 4 msgtype ? API_MSG_BIND ? API_MSG_LISTEN NETLAB conn_bind do_bind API_MSG_BIND conn_bind mbox api_msg_post sys_mbox_fetch sys_mbox_post sys_mbox_fetch tcp_bind NETLAB conn_listen do_listen API_MSG_LISTEN conn_listen mbox api_msg_post sys_mbox_fetch sys_mbox_post sys_mbox_fetch pcbaccpet = accept_function NETLAB conn_close do_close API_MSG_CLOSE conn_close mbox api_msg_post sys_mbox_fetch sys_mbox_post sys_mbox_fetch tcp_close NETLAB TYPE 2 TASK 1 TASK 2 mbox 1 2 msgtype ? API_MSG_CONNECT TASK 3 3 4 NETLAB conn_connect do_connect pcbconnected = do_connected pcbstate = SYN_SENT tcp_enqueue() tcp_output() conn_connect tcp_input() , tcp_process() switch case: SYNSENT pcbconnected do_connected mbox api_msg_post sys_mbox_fetch sys_mbox_post sys_mbox_fetch NETLAB TYPE 3 TASK 1 mbox 1 2 3 4 msgtype ? API_MSG_SEND ? API_MSG_WRITE TASK 2 udp_output or tcp_write NETLAB conn_send do_send API_MSG_SEND conn_send mbox api_msg_post sys_mbox_fetch sys_mbox_post sys_mbox_fetch udp_output NETLAB conn_write do_write API_MSG_WRITE co
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