Hi,
Yes, for solving the issue, i had to make a non blocking socket for
ftpclient. Instead of using fcntl() with F_GETFL or F_SETFL that is not
supported at this moment in Ecos, I used ioctl with FIONBIO. My
application seems working good now.
Once more time, thanks for your helps.
NT
Andrew Lunn a écrit :
On Wed, Jan 02, 2008 at 11:57:34AM +0100, NGUYEN Thanh SILICOMP wrote:
Hi all,
Firstly, happy new year & best wished to all.
I'm working on an application connecting to FTP server using ecos ftpclient
package. I constate that the application waits for ever on a blocking
semaphore of cyg_tsleep() function when there is no ftp server available.
In fact, for connecting to ftp server, ftpclient uses connect() that calls
itself bas_connect() in which the while loop is used for waiting for the
connection etablishment or an error occurring :
while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) {
error = tsleep((caddr_t)&so->so_timeo, PSOCK | PCATCH,
netcon, 0);
if (error)
break;
}
The paramter timo of tsleep set to 0 makes cyg_tsleep waiting for a
blocking semaphore at line 325 of the file synch.c
(net/tcpip/current/src/ecos/synch.c). And the wait time is usually long and
triggers the watchdog process in my application.
I would like to know that there is any way to set up a timeout on socket
before calling connect() so that the application will be able to get out
this blocking situation ?
Any idea or sugestion will be appreciated.
Take a look at
http://www.developerweb.net/forum/showthread.php?p=13486. You will
need to modify the ftpclient code to implement this scheme for
connect.
Andrew
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