to be returned using seastar::future<...> the value type should satisfy
std::is_nothrow_constructible<T>.
with this change, pg_pool_t will be nothrow_constructible. and hence
can be returned using seastar::future<pg_pool_t>. otherwise
std::is_nothrow_constructible<pg_pool_t>::value would be false.
Signed-off-by: Kefu Chai <kchai@redhat.com>
This is a portion of Part 1 of the namespace project: using ADL
properly in encode and decode so we can use namespaces easily in Ceph.
Signed-off-by: Adam C. Emerson <aemerson@redhat.com>
Otherwise impl is unpopulated and we risk segfaults in several
methods. It also seems like it would always indicate a bug.
Signed-off-by: Samuel Just <sjust@redhat.com>
Track a set of hash values, either explicitly or using a bloom_filter. Hide
the implementation and allow us to transparently encode and decode.
Signed-off-by: Sage Weil <sage@inktank.com>
Signed-off-by: Greg Farnum <greg@inktank.com>
