int sim_slirp_select (SLIRP *slirp, int ms_timeout)
{
int select_ret = 0;
uint32 slirp_timeout = ms_timeout;
struct timeval timeout;
fd_set rfds, wfds, xfds;
fd_set save_rfds, save_wfds, save_xfds;
int nfds;
/* Populate the GPollFDs from slirp */
g_array_set_size (slirp->gpollfds, 1); /* Leave the doorbell chime alone */
slirp_pollfds_fill(slirp->gpollfds, &slirp_timeout);
timeout.tv_sec = slirp_timeout / 1000;
timeout.tv_usec = (slirp_timeout % 1000) * 1000;
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&xfds);
/* Extract the GPollFDs interest */
nfds = pollfds_fill (slirp->gpollfds, &rfds, &wfds, &xfds);
save_rfds = rfds;
save_wfds = wfds;
save_xfds = xfds;
select_ret = select(nfds + 1, &rfds, &wfds, &xfds, &timeout);
if (select_ret) {
int i;
/* Update the GPollFDs results */
pollfds_poll (slirp->gpollfds, nfds, &rfds, &wfds, &xfds);
if (FD_ISSET (slirp->db_chime, &rfds)) {
char buf[32];
/* consume the doorbell wakeup ring */
recv (slirp->db_chime, buf, sizeof (buf), 0);
}
sim_debug (slirp->dbit, slirp->dptr, "Select returned %d\r\n", select_ret);
for (i=0; i<nfds+1; i++) {
if (FD_ISSET(i, &rfds) || FD_ISSET(i, &save_rfds))
sim_debug (slirp->dbit, slirp->dptr, "%d: save_rfd=%d, rfd=%d\r\n", i, FD_ISSET(i, &save_rfds), FD_ISSET(i, &rfds));
if (FD_ISSET(i, &wfds) || FD_ISSET(i, &save_wfds))
sim_debug (slirp->dbit, slirp->dptr, "%d: save_wfd=%d, wfd=%d\r\n", i, FD_ISSET(i, &save_wfds), FD_ISSET(i, &wfds));
if (FD_ISSET(i, &xfds) || FD_ISSET(i, &save_xfds))
sim_debug (slirp->dbit, slirp->dptr, "%d: save_xfd=%d, xfd=%d\r\n", i, FD_ISSET(i, &save_xfds), FD_ISSET(i, &xfds));
}
}
return select_ret + 1; /* Force dispatch even on timeout */
}
int main_loop_wait(int nonblocking)
{
int ret;
uint32_t timeout = UINT32_MAX;
int64_t timeout_ns;
if (nonblocking) {
timeout = 0;
}
/* poll any events */
g_array_set_size(gpollfds, 0); /* reset for new iteration */
/* XXX: separate device handlers from system ones */
#ifdef CONFIG_SLIRP
slirp_update_timeout(&timeout);
slirp_pollfds_fill(gpollfds);
#endif
qemu_iohandler_fill(gpollfds);
if (timeout == UINT32_MAX) {
timeout_ns = -1;
} else {
timeout_ns = (uint64_t)timeout * (int64_t)(SCALE_MS);
}
timeout_ns = qemu_soonest_timeout(timeout_ns,
timerlistgroup_deadline_ns(
&main_loop_tlg));
ret = os_host_main_loop_wait(timeout_ns);
qemu_iohandler_poll(gpollfds, ret);
#ifdef CONFIG_SLIRP
slirp_pollfds_poll(gpollfds, (ret < 0));
#endif
qemu_clock_run_all_timers();
return ret;
}
int main_loop_wait(int nonblocking)
{
int ret;
uint32_t timeout = UINT32_MAX;
int64_t timeout_ns;
if (nonblocking) {
timeout = 0;
}
/* poll any events */
g_array_set_size(gpollfds, 0); /* reset for new iteration */
/* XXX: separate device handlers from system ones */
#ifdef CONFIG_SLIRP
slirp_pollfds_fill(gpollfds, &timeout);
#endif
if (timeout == UINT32_MAX) {
timeout_ns = -1;
} else {
timeout_ns = (uint64_t)timeout * (int64_t)(SCALE_MS);
}
timeout_ns = qemu_soonest_timeout(timeout_ns,
timerlistgroup_deadline_ns(
&main_loop_tlg));
ret = os_host_main_loop_wait(timeout_ns);
#ifdef CONFIG_SLIRP
slirp_pollfds_poll(gpollfds, (ret < 0));
#endif
/* CPU thread can infinitely wait for event after
missing the warp */
qemu_clock_warp(QEMU_CLOCK_VIRTUAL);
qemu_clock_run_all_timers();
return ret;
}
