[Swan-dev] tracking libevent's memory

[Andrew Cagney]

Attached is a patch to configure libevent so that it uses pluto's
leak-detective.  It does throw up some leaks but they are mostly
harmless - pluto just needs to execute:
+       dbg("releasing event base");
+       event_base_free(pluto_eb);
+       pluto_eb = NULL;
+       dbg("releasing global event data");
+       /* this releases data allocated by evthread_use_pthreads() */
+       libevent_global_shutdown();
as part of a clean shutdown.  The attached patch also adds these missing calls.

I'm going to sit on this for now (I need to test more than just
ikev2-12-x509-ikev1-rw), but that can wait until later.

Andrew

PS: more surprisingly is that this patch and count-pointers.awk found
a bug in leak-detective :-)
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