Re: [lwip-users] lwip tcp hangup

[vincent cui]

Simon

The httphandler definition as followed, please help me to check ...
It only return a daynamic web page.... 

For FRTOS configuration, I configure it as PREEMPTION

void httphandler(void *pvArg)
{
        int nbytes;
        int8_t *ptr;
        struct tm time;
        int clientfd = *((int *)pvArg);
        
#if LWIP_TCP_KEEPALIVE
        lwip_setsockopt(clientfd, SOL_SOCKET, TCP_KEEPIDLE,  (void 
*)&tcp_keepIdle,  sizeof(tcp_keepIdle));
        lwip_setsockopt(clientfd, SOL_SOCKET, TCP_KEEPINTVL, (void 
*)&tcp_keepIntvl, sizeof(tcp_keepIntvl));
        lwip_setsockopt(clientfd, SOL_SOCKET, TCP_KEEPCNT,   (void 
*)&tcp_keepCount, sizeof(tcp_keepCount)); 
#endif
        lwip_setsockopt (clientfd, SOL_SOCKET, SO_RCVTIMEO, &web_rcvtimeo, 
sizeof(uint32_t));
        nbytes = lwip_recv (clientfd, webpage, sizeof(WebSide),0);
    if (nbytes>0)
        {
                if (strstr ((void *)webpage, "GET" ) != NULL)
                {
                        memcpy (webpage , WebSide ,sizeof(WebSide)); 
                        if( (ptr = memstrExt( (void 
*)webpage,"AD8%",strlen("AD8%"),sizeof(webpage)) ) != NULL)
                        {
        
                                time = Time_GetCalendarTime();
                                sprintf ((void *)ptr, "%d-%d-%d   
%02d:%02d:%02d", time.tm_year, \
                                                time.tm_mon+1, time.tm_mday,\
                                                time.tm_hour, time.tm_min, 
time.tm_sec);
                                              
                        } 
                        send (clientfd, "HTTP/1.1 200 OK\r\nContent-type: 
text/html\r\n\r\n", strlen("HTTP/1.1 200 OK\r\nContent-type: 
text/html\r\n\r\n"), 0); //发送HTPP请求什么的
                send (clientfd,webpage,strlen(WebSide) ,0); 
                }
      
        }
    lwip_close (clientfd);

        vTaskDelete(NULL);
}

锘?Vincent Cui
Sr.Firmware Engineer
Mobile: +8613482482211
Tel: +86 21 34612525x6104
Fax: +86 21 34619770
E-Mail: address@hidden
Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District, Shanghai, 
200233
http://www.enlogic.com

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Simon Goldschmidt
Sent: 2011年9月1日 16:50
To: Mailing list for lwIP users
Subject: Re: [lwip-users] lwip tcp hangup

vincent cui <address@hidden> wrote:
> The following code is a piece of my web server, I think it should deal
> with mult-connetion, but the result is not

That code should be OK to handle parallel connections. If it's not, it could be 
a problem either in how the 'httphandler' function works or how your OS handles 
parallel threads. I'm not familiar with FreeRTOS, however (since I think that's 
what you're using).

Simon

BTW: no need to call close() for invalid sockets (i.e. < 0). Since this is an 
error condition, you should break the while-loop instead.

BTW2: '0' *is* a valid socket, so your check should be 'if (clientfd >= 0)'.

>       while (1) 
>       {
>         clientfd = lwip_accept(lSocket, (struct sockaddr*)&client_addr,
> &addrlen);
>               if (clientfd > 0)
>               {
>                       xTaskCreate( httphandler, NULL, 128, (void *)&clientfd,
> HTTP_TASK_PRIORITY, NULL );
>                       vTaskDelay(100);
>               }
>               else
>               {
>                       lwip_close (clientfd);
>               }
>     }
> 
> Would you help to check ?
> 
> 锘?Vincent Cui
> Sr.Firmware Engineer
> Mobile: +8613482482211
> Tel: +86 21 34612525x6104
> Fax: +86 21 34619770
> E-Mail: address@hidden
> Shanghai EnLogic Electric Technology Co., Ltd.
> Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District,
> Shanghai, 200233
> http://www.enlogic.com
> 
> -----Original Message-----
> From: address@hidden
> [mailto:address@hidden On Behalf Of Simon
> Goldschmidt
> Sent: 2011年9月1日 16:10
> To: Mailing list for lwIP users
> Subject: Re: [lwip-users] lwip tcp hangup
> 
> vincent cui <address@hidden> wrote:
> > I mean I don't make lwIP do mult connection, it always deal with
> > connection  one by one
> 
> lwIP certainly allows multiple parallel connections, but I don't
> understand what you mean by "making lwIP do mult connection".
> 
> Simon
> -- 
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