C++ doesn't define overflow on signed types, so use unsigned types instead.
Luckily all right shifts were unsigned anyway.
Some signed extension was happening (handling remainders after processing
8-byte chunks) but should still be there.
Caught by debug build.
Add UUID::to_sstring() method, analogous to the Java UUID.toString(),
and I verified that it generates the same output as the original Java
method.
Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>
[avi: make it build, using sprint() instead of sprintf()]
Convert Cassandra's UUIDGen class, which generates time-dependent UUID,
and parts of the java.util.UUID which I thought we need, to C++.
It is possible I missed some needed features of java.util.UUID that we'll
need to add later.
Also, part of the version-1 UUID is supposed to be node-unique (so that
if two nodes happen to boot at the same time and get a UUID at exactly
the same time, they still get different UUIDs). Cassandra uses for this
a hash function of the IP address, we should use in the future the MAC
address (from Seastar's network stack). But currently we just use 0.
Left a FIXME to fix that.
Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>
[avi: add to ./configure.py]
In the original Java code, MurmurHash was in the "utils" package, not
"util", so move it to a new "utils" directory (and namespace), not
"util".
Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>
