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cacaa94350
In case of normal fetch, the .recursionquota is attached and
ns_statscounter_recursclients is incremented when the fetch is created. Then
the .recursionquota is detached and the counter decremented in the
fetch_callback().
In case of prefetch or rpzfetch, the quota is attached, but the counter is not
incremented. When we reach the soft-quota, the function returns early but don't
detach from the quota, and it gets destroyed during the ns_client_endrequest(),
so no memory was leaked.
But because the ns_statscounter_recursclients is only incremented during the
normal fetch the counter would be incorrectly decremented on two occassions:
1) When we reached the softquota, because the quota was not properly detached
2) When the prefetch or rpzfetch was cancelled mid-flight and the callback
function was never called.
(cherry picked from commit
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| .. | ||
| include | ||
| tests | ||
| win32 | ||
| api | ||
| client.c | ||
| hooks.c | ||
| interfacemgr.c | ||
| Kyuafile | ||
| lib.c | ||
| listenlist.c | ||
| log.c | ||
| Makefile.in | ||
| notify.c | ||
| query.c | ||
| server.c | ||
| sortlist.c | ||
| stats.c | ||
| update.c | ||
| version.c | ||
| xfrout.c | ||