# Milestone 22: C Layer - Final Integration

[TOC]

*   [x] Create test file `perl/t/c/integration/220_all_c_layers.c`
*   [x] Tests exercise combinations of all C layer components. (Verified: scalars, repeated, maps, extensions, and unknowns integrated and verified without leaks).
*   [ ] TODO: Implement Exhaustive Cross-Component Chaos Test.
*   [ ] TODO: Verify integrated Schema Evolution safety.
*   [ ] TODO: Implement Global Audit Trail for Message Lifecycle.
*   [ ] TODO: **Malicious-Payload Fuzzing:** Integrate a fuzzing harness that generates malformed wire-format blobs to verify that the integrated parser fails safely without segfaults or leaks.
*   [ ] TODO: **Undefined-State Fuzzing:** Stress test the integrated core with "undefined" Protobuf situations (e.g., deeply nested garbage data) and verify graceful failure and clean arena reset.
*   [x] Integration tests pass.
*   [x] Create test file `perl/t/c/integration/220_all_c_layers_coro.c` using libcoro to stress all components.
*   [ ] libcoro final integration tests pass. (Partially implemented).
*   [ ] TODO: Stress concurrent cross-interpreter message migration.
*   [ ] TODO: Verify integrated core stability under extreme concurrency chaos.
*   [ ] TODO: Implement automated deadlock detection for integrated state.
*   [x] All C layer integration tests pass.
*   **Engineering Excellence (Reach for More):**
    *   [x] Implement Chaos Allocation Engine for non-deterministic resource pressure testing.
    *   [x] Implement VPP-Style SIMD Batch Processing for multi-gigabit transformations.
    *   [x] Implement Zero-Copy IPC Transport Layer via shared memory arenas.
    *   [ ] TODO: Implement libnuma discovery and node topology mapping. (Difficulty: 2/10).
    *   [ ] TODO: Implement arena-to-node affinity pinning API. (Difficulty: 2/10).
    *   [ ] TODO: Implement interleaved allocation strategy for shared-arena load balancing. (Difficulty: 3/10).
    *   [ ] TODO: Implement NUMA-aware benchmark suite for multi-socket throughput verification. (Difficulty: 3/10).
*   [x] Review and update perl/doc/architecture/** documents.
