Since NetWare does not have an implementation of the poll() api, we are obviously using the select() version of apr_poll(). When I run the APR testpoll test it fails on the "send_2_signaled_1" test. After doing some research this is what I have discovered. During the flow of testpoll 3 sockets are created and put in to the poll array. The following is the expected state of the sockets at the time apr_poll() is called during each test.
test 0 1 2 ------------------------------------------------------ send_2 nodata nodata data recv_2_send_1 nodata data nodata send_2_signaled_1 nodata data data test fails detecting no data on "2" The "send_2" test sends data to socket "2" followed by the "recv_2_send_1" test which recieves the data from socket "2" and then sends data on socket "1". At this point we have no data on socket "0", data on socket "1" and no data on socket "2". Everything is fine at this point. In the next test "send_2_signaled_1" sends data to socket "2" immediately before calling apr_poll(). The expectation is that apr_poll() will return with recv events on socket "1" and socket "2". The issues is that when select() is called in apr_poll(), it returns immediately signalling that there is data on socket "1" but no data on socket "2". The reason why is because the data for socket "2" that was sent immediately before calling apr_poll(), has not had enough time to be recognized by select() yet. select() did not wait for the recv event on socket "2" because it already had something to report on socket "1". In every other case previous to this, there where no events pending so select() waited from an event. In this case there was already an event pending on socket "1" so select() never bothered waiting for the event on socket "2". The test expects both socket "1" and socket "2" to have pending recv events but fails. Does the same issue exist in the poll() implementation of apr_poll()? Is this a bug in the test or in apr_poll()? Brad Brad Brad Nicholes Senior Software Engineer Novell, Inc., the leading provider of Net business solutions http://www.novell.com
