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2e8ed8cb4e
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feat: P3-7 ctrl_metrics — 7 atomic counters/gauges + descriptor table + persist wiring
Add operational metrics infrastructure for the XCE controller persistence
and HA subsystems (design doc P3-7, review A8-007).
- src/include/ctrl_metrics.h: declares 7 _Atomic uint64_t metrics with
ctrl_ prefix, CTRL_METRIC_INC / CTRL_METRIC_SET macros, ctrl_metric_desc_t
descriptor struct, ctrl_metric_descriptors[] table, and ctrl_metrics_init()
- src/controller/ctrl_metrics.c: defines the 7 counters/gauges, the
descriptor table (7 entries + NULL sentinel), and ctrl_metrics_init()
- src/controller/persist.c: #include ctrl_metrics.h; call ctrl_metrics_init()
at persist_start() entry; CTRL_METRIC_INC(ctrl_repl_degraded_count) when
repl_wait_ack returns < 0 (degraded / local-only durability mode)
- src/controller/meson.build: add ctrl_metrics.c to xce_controller and
controller_unit_test source lists; add test_ctrl_metrics.c to test sources
- src/controller/testsuite/test_ctrl_metrics.c: 5 TDD-first Unity tests
covering init-zeros, increment, set/overwrite gauge, descriptor sentinel
count, and transient-stuck counter accumulation — all PASS
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2026-05-08 00:04:06 +00:00 |
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