This is the mail archive of the ecos-discuss@sourceware.org mailing list for the eCos project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Application is blocked on the while loop within bsd_connect() function


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.

Thank in advance for your helps.

Thanh NGUYEN






-- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]