radius: encapsulate server statistics counters

Group the per-server RADIUS statistics in struct rad_server_stat_t under rad_server_t.stat instead of keeping auth, accounting, interim, and failure counters as separate fields on rad_server_t.  This keeps the statistics state collected behind one ownership boundary and makes the relationship between the total counters and their rolling accumulators explicit.

Route counter updates through rad_server_stat_*() helpers.  Auth, accounting, interim, and server-failure paths no longer open-code individual counter increments and accumulator updates; the update policy now lives in serv.c with the rest of the RADIUS server accounting logic.

Make the CLI show-stat path render from a local snapshot.  The displayed totals are loaded with relaxed atomic reads, the rolling one-minute/five-minute values are collected in one place, and the in-flight request/queue counters are copied under the server lock before printing.  Future changes to synchronization or accumulator storage can stay inside the snapshot/update helpers instead of leaking into the CLI formatting code.

Signed-off-by: Denys Fedoryshchenko <denys.f@collabora.com>

0 files changed, 0 insertions, 0 deletions