On Fri, Mar 25, 2011 at 8:54 PM, Gary Thomas <[email protected]> wrote: > On 03/25/2011 09:17 AM, ratheesh kannoth wrote: >> >> Is there any prob with below code segment in eCos ? >> >> { >> fd_set rd_fds; >> >> FD_ZERO(&rd_fds); >> >> while (1) { >> >> timeout.tv_sec = 1; >> timeout.tv_usec = 0; >> >> if (select(0,&rd_fds, NULL, NULL,&timeout)< 0) { >> printf("\n Error \n"); >> sleep(1); >> continue; >> } >> >> printf("\n Success \n"); >> } >> } >> > > Yes - the first parameter to select() is the number of open file > descriptors to check (fd in 0..N-1). Putting a zero there will > never yield any activity. > > Typically, one puts the max # of open file descriptors or at > least the highest known open one + 1. > > -- > ------------------------------------------------------------ > Gary Thomas | Consulting for the > MLB Associates | Embedded world > ------------------------------------------------------------ > True. But it runs perfectly on eCos and linux. I facing some problem, whenever i hit a key on keyboard in eCos. Is there connection to this select system call here.
-Ratheesh -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
