Actually i have (and trying with) Connection: Keep-Alive
As I wrote down. The problem it seems that server after sending full of data (all packets) just send a FIN, ACK which is closing conn, so than i cant do netconn_write anymore.
As i sad i tried with Connection: Keep-Alive etc. but it just do not work ok. I don't know where is the bug at me or at lwIP how it's working. Becouse my server it's ok, today it was tested with TCP/IP tool and Keep-Alive it's working just fine.
Thank you Marty for help! Regards, Danijel Dne 13.6.2013 19:20, piše Pomeroy, Marty:
You have "Connection: Close" in your request string. Doesn't that tell the server to close the socket? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Furiantes Sent: Thursday, June 13, 2013 4:10 AM To: [email protected] Subject: Re: [lwip-users] LPC1768/9 :: FreeRTOS 7.4 :: lwIP 1.4.1 :: TCPsend/recv Hello, after sometime of debug, i saw: - Server send FIN, ACK after sending the packet - which cause the connection to go to state CLOSE_WAIT - after that i can't write to tcp_write, device dont send any more request to a server becouse of state CLOSE_WAIT So how to keep things alive, i tried with Keep-Alive (enabling on device + sending request with Connection: Keep-Alive). So how I can maintain connection, to be able to send/recieve multiple times ? If anybody can please help. Regards, Danijel Dne 10.6.2013 10:38, piše Furiantes:Hello, i have one more problem. My goal is: - connect to server loop - send request (get request like /my_php?dataFrom=[something]&dataTo=[something]) - and wait for response while(some termination) I did this (code below), but a second request is never sent to server. First request id OK, i get the data in processes it ok. But at the second request, netconn_write it seems it never send it to a server anything (i watch with WireShark). I tried to connect/disconnect, close - connect, but nothing worked. So if please can anybody tell the correct procedure to send/recieve data TCP connection. Thanks to anybody who will even read it. Dan resultCon = netconn_connect(xNetConn, &remote_ip, cdata->host_port_number ); downloadBlock: xNetConn->recv_timeout = 30000; sprintf(request_my_c, "GET /my_php/data.php?startB=%d&lenB=%d HTTP/1.1\r\nAccept: */*\r\nAccept-Language: sl\r\nUser-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)\r\nHost: %d.%d.%d.%d:%d\r\nConnection: Close\r\n\r\n\0", transData,transDataLen,cdata->host_add[0],cdata->host_add[1],cdata->ho st_add[2],cdata->host_add[3] , cdata->host_port_number); netconn_write(xNetConn, request_my_c, strlen(request_my_c), NETCONN_COPY); while (1) { resultRecv = netconn_recv(xNetConn, &buf); //process data //all blocks downloaded -> break //goto another block; } some code...._______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
_______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
