There's no benefit to using C include guards so switch to pragma once
everywhere for consistency.
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
To prepare a user-defined type, we need to look up its name in the keyspace.
While we get the keyspace name as an argument to prepare(), it is useless
without the database instance.
Fix the problem by passing a database reference along with the keyspace.
This precolates through the class structure, so most cql3 raw types end up
receiving this treatment.
Origin gets along without it by using a singleton. We can't do this due
to sharding (we could use a thread-local instance, but that's ugly too).
Hopefully the transition to a visitor will clean this up.
Preparation for range queries, from Tomasz:
"This series adds static typic for different key variants.
It also changes clustered row map to boost implementation which allows to use
heterogenous keys, so that we can lookup a row by a full prefix without
reserializing it.
Similar change is made to row prefix tombstones."
Query processor needs to store prepared statements as part of a client
session for PREPARE and EXECUTE requests. Switch from unique_ptr to
shared_ptr in preparation for that.
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Holding keys and their prefixes as "bytes" is error prone. It's easy
to mix them up (or use wrong types). This change adds wrappers for
keys with accessors which are meant to make misuses as difficult as
possible.
Prefix and full keys are now distinguished. Places which assumed that
the representation is the same (it currently is) were changed not to
do so. This will allow us to introduce more compact storage for non-prefix
keys.
It's compared with size_t and is set from size_t. To avoid ugly casts
we can store it as unsigned int. It's always positive anyway. Origin
uses signed int ("int") because there is no unsigned int in Java.
The method may defer so the result is wrapped in future<>.
I think we don't need to wrap arguments in shared_ptr<> because they
may come from the request state object.
