tree fa62abb1aeffe3f1c86c97325e7e3b7119a3fd25
parent e76b847397b7ef524ac53c0cba9f8824900adc32
author Peter McCurdy <pmccurdy@google.com> 1475617504 -0400
committer Peter McCurdy <pmccurdy@google.com> 1476409543 -0400

Refactor isoping and add unit tests.

Separate out isoping per-client state into a struct, and do most per-packet
processing in separate functions.  This makes testing feasible, and will let us
support multiple clients per server.  Also compile as C++ to make the struct
initialization clean and get access to hash tables for the multiclient scenario.

No actual logic changes involved, just new tests added.

Change-Id: I1d405f25043770484e2dbad183d3bc9206abf60d