gro_mgr::gro_mgr(uint32_t flow_max, uint32_t buf_max) : m_n_flow_max(flow_max), m_n_buf_max(buf_max), m_n_flow_count(0)
{
m_p_rfs_arr = new rfs_uc_tcp_gro*[flow_max];
BULLSEYE_EXCLUDE_BLOCK_START
if (!m_p_rfs_arr) {
__log_panic("could not allocate memory");
}
BULLSEYE_EXCLUDE_BLOCK_END
}
bool select_call::wait(const timeval &elapsed)
{
timeval timeout, *pto = NULL;
timespec to_pselect, *pto_pselect = NULL;
BULLSEYE_EXCLUDE_BLOCK_START
if (m_n_all_ready_fds > 0) {
__log_panic("wait() called when there are ready fd's!!!");
// YossiE TODO make this and some more checks as debug assertions
// In all functions
}
BULLSEYE_EXCLUDE_BLOCK_END
// Restore original sets
if (m_b_run_prepare_to_poll) {
if (m_readfds) FD_COPY(m_readfds, &m_os_rfds, m_nfds);
if (m_writefds) FD_COPY(m_writefds, &m_os_wfds, m_nfds);
if (m_exceptfds)FD_COPY(m_exceptfds, &m_orig_exceptfds, m_nfds);
}
// Call OS select() on original sets + CQ epfd in read set
if (m_readfds)
FD_SET(m_cqepfd, m_readfds);
if (m_timeout) {
tv_sub(m_timeout, &elapsed, &timeout);
if (timeout.tv_sec < 0 || timeout.tv_usec < 0) {
// Already reached timeout
return false;
}
pto = &timeout;
}
__log_func("going to wait on select CQ+OS nfds=%d cqfd=%d pto=%p!!!", m_nfds_with_cq, m_cqepfd, pto);
// ACTUAL CALL TO SELECT
if (m_sigmask) {
if (pto) {
to_pselect.tv_sec = pto->tv_sec;
to_pselect.tv_nsec = pto->tv_usec * 1000;
pto_pselect = &to_pselect;
}
m_n_all_ready_fds = orig_os_api.pselect(m_nfds, m_readfds, m_writefds, m_exceptfds, pto_pselect, m_sigmask);
} else {
m_n_all_ready_fds = orig_os_api.select(m_nfds_with_cq, m_readfds, m_writefds, m_exceptfds, pto);
}
__log_func("done select CQ+OS nfds=%d cqfd=%d pto=%p ready=%d!!!", m_nfds_with_cq, m_cqepfd, pto, m_n_all_ready_fds);
if (m_n_all_ready_fds < 0) {
vma_throw_object(io_mux_call::io_error);
}
// Clear CQ from the set and don't count it
if (m_readfds)
{
if (FD_ISSET(m_cqepfd, m_readfds)) {
FD_CLR(m_cqepfd, m_readfds); // Not needed if m_readfds is NULL
--m_n_all_ready_fds;
return true;
}
}
return false;
}