On Wed, Aug 21, 2002 at 01:48:08AM +0800, C K Tan wrote:
> Hi, I am looking for a way to check if a socket is still connected to
> the client.
> What is a good way to do this in APR? Here are some tries which do not
> work
> (on Win32 with the cvs co latest):
Use apr_poll and look for the out of band errors.
flood uses the following to check the socket:
apr_status_t check_socket(flood_socket_t *s, apr_pool_t *pool)
{
apr_status_t e;
apr_int32_t socketsRead;
apr_pollfd_t pout;
apr_int16_t event;
pout.desc_type = APR_POLL_SOCKET;
pout.desc.s = s->socket;
pout.reqevents = APR_POLLIN | APR_POLLPRI | APR_POLLERR | APR_POLLHUP |
APR_POLLNVAL;
pout.p = pool;
e = apr_poll(&pout, 1, &socketsRead, 1000);
if (socketsRead && pout.rtnevents) {
return APR_EGENERAL;
}
return APR_SUCCESS;
}
Note that flood checks for POLLIN because it is a client and shouldn't
see anything incoming that it hasn't requested, so that would be an
error.
HTH. -- justin
