Make sure we clear active flag from unprocessed events if
sudo_ev_loopbreak() or sudo_ev_loopcontinue() are used.
Remove bogus optimization when the timeout is zero or negative; it
could prevent an I/O event from being triggered.
now pop the first event off the active queue instead of using a
foreach loop with deferred removal of the event.
Add SUDO_EVQ_INSERTED and SUDO_EVQ_TIMEOUTS flags to indicate that
the event on the event queue and timeouts queue respectively.
No longer need to compare the timeout to {0,0} or compare the
event's base pointer to NULL to determine queue membership.
is currently O(n). The only consumer of timed events is sudoreplay
which only used a singled one so O(n) == O(1) for now. This also
allows us to remove the nanosleep compat function as we now use a
timeout event instead.
it calls poll or select. This allows the front end to iterate over
the events instead of having that code in both back ends. It will
also simplify support for timeout events. Also make sure we can't
touch freed memory if a callback frees its own event.
together but it was clearing the host entry each time through the
loop. Fixes a bug with multiple URI entries in ldap.conf where
only the last one was being honored.
safe_close(). A new ev_free_by_fd() function is used to remove and
free any events sharing the specified fd. This can be used after
safe_close() to make sure we don't try to select() on a closed fd.
TAILQ_FIRST, TAILQ_REMOVE and free in a loop to free each entry in
a TAILQ confuses llvm. Use TAILQ_FOREACH_SAFE instead (which is
probably faster anyway).
lists in sudoers. Once the headless tail queue is built up it is
converted to a normal TAILQ. This removes the last consumer of
list.c and list.h so those can now be removed.
queue functions. This includes a private queue.h header derived
from FreeBSD. It is simpler to just use our own header rather than
try to deal with macros that may or may not be present in various
queue.h incarnations.
simplied subset of libevent2. Currently only fd events are supported
(since that's all we need). The poll() backend is used by default,
except on Mac OS X where poll() is broken for devices (including
/dev/tty and ptys).
