Am 14.06.2006 um 12:12 schrieb Zoran Vasiljevic:
One solution would be to really delete expired entry in
Ns_CacheFindEntry()
instead of just ExpireEntry(). This would salvage logic in
Ns_CacheWaitCreateEntry().
Another solution would be to add new bit in the Entry structure
marking
the structure as expired. Then add new logic in the
Ns_CacheWaitCreateEntry()
which would check that bit and act accordingly.
Third solution is NOT to ExpireEntry from within the Ns_CacheFindEntry.
Instead, just record the event (update counters) and return NULL.
This will have a side effect that such entries cannot be directly
flushed (i.e. deleted) until they are either set to a new value
OR until the entire cache is purged.
I have checked-in this change and am satisfied with it, as it
solves my problem. We could invest some more time and perhaps
find more optimal or elegant solution but I will leave this to
Stephen.
Cheers,
Zoran
