Currently udp sender my send whenever it has data and if it does
this faster than packets can be transmitted we will run out of memory.
This patch limits how much outstanding data each native udp channel may
have.
L4 will provide the callback to be called by L3 after the packet is
handled to lower layers for transmission. L4 will know that it can queue
more data from user at this point. The patch also change send function
that can no longer block to return void instead of future<>.
This is the directory from which we will read the sstables.
Code to actually parse them will come later.
Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
In some cases, deserialize() can return a null object (if there were zero
input bytes).
In others, it cannot (for string or blob types).
Change the return type to optional<any> and adapt the deserialiation code
to deal with it.
Dynamic types come and go, so they need to be reference counted.
Switch data_type to using a shared_ptr<> for its implementation.
Since thread_ptr is not thread safe, the global primitive types must be
thread_local.
The first argument is a synthetic this pointer that we require users to
pass around. Change it to shared_ptr<term> instead to make it accessible
to all callers.
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Cassandra uses the DataOutput / DataInput interfaces and related classes
(DataOutputPlus, DataOutputStream, AbstractDataOutput, etc.) to serialize
primitive types - integers of various lengths, strings, etc, as part of
various inter-node messages, and so on.
This patch implements similar primitive type serialization/deserialization
in C++. The interface is quite different, but the functionality is the same
and so is the serialized format. The fact that the format is identical
(I verified this) is important, because we want a C++ node to be able to
communicate with a Java node.
Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>
