Issues

• Shared-memory receive path copies every large payload into a heap buffer before deserializing (shm_fetch_payload)

  P2performance
  benaliabderrahmane/rmw_unix_socket_cpp#86 · Filter by author benaliabderrahmane opened on Oct 5, 2026
  

• rmw_wait reads every guard condition's eventfd twice per call: ~38 failing read() syscalls per wait

  P2performance
  benaliabderrahmane/rmw_unix_socket_cpp#85 · Filter by author benaliabderrahmane opened on Oct 5, 2026
  

• Receive path allocates and frees a payload-sized buffer per message: glibc trims the heap and the next message page-faults it back in

  P1performance
  benaliabderrahmane/rmw_unix_socket_cpp#84 · Filter by author benaliabderrahmane opened on Oct 5, 2026
  

• -Wclass-memaccess warning in shm_stage_durable (shm_transport.cpp:332)

  good first issueP2
  benaliabderrahmane/rmw_unix_socket_cpp#78 · Filter by author benaliabderrahmane opened on Sep 30, 2026

• Document container-scoped sharing and its /dev/shm budget: the 38 MB registry leaves ~26 MB of Docker's 64 MB default, latching then fails with ENOSPC

  documentationenhancementP2
  benaliabderrahmane/rmw_unix_socket_cpp#76 · Filter by author benaliabderrahmane opened on Sep 30, 2026

• Registry slots leak permanently across execve(2): after a self-restart, services are unreachable but still report available

  bug
  benaliabderrahmane/rmw_unix_socket_cpp#72 · Filter by author benaliabderrahmane opened on Sep 10, 2026

• high_water_slot never decreases, so every scan stays at the historical peak

  P2performance
  benaliabderrahmane/rmw_unix_socket_cpp#54 · Filter by author benaliabderrahmane opened on Aug 11, 2026
  1

  

• Every registry mutation scans all slots and wakes every process

  P1performance
  benaliabderrahmane/rmw_unix_socket_cpp#53 · Filter by author benaliabderrahmane opened on Aug 11, 2026
  1

  

• Enforce ament_clang_format style (not currently configured)

  enhancementP2tooling
  benaliabderrahmane/rmw_unix_socket_cpp#50 · Filter by author benaliabderrahmane opened on Aug 5, 2026

• require_unique_network_flow_endpoints is dropped at creation — STRICTLY_REQUIRED silently succeeds

  api-completenessgood first issueP2
  benaliabderrahmane/rmw_unix_socket_cpp#48 · Filter by author benaliabderrahmane opened on Aug 4, 2026

• Endpoint info never sets topic_type_hash: ros2 topic info -v shows "Topic type hash: INVALID"

  api-completenessgood first issueP1
  benaliabderrahmane/rmw_unix_socket_cpp#46 · Filter by author benaliabderrahmane opened on Aug 4, 2026
  2

• R15 — Content filtering / dynamic types: document as out of scope

  api-completenessP2roadmap
  benaliabderrahmane/rmw_unix_socket_cpp#34 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 4/5 — Tooling & API

• R14 — Network flow endpoints

  api-completenessP2roadmap
  benaliabderrahmane/rmw_unix_socket_cpp#33 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 4/5 — Tooling & API

• R13 — Implement rmw_get_serialized_message_size

  api-completenessP2roadmap
  benaliabderrahmane/rmw_unix_socket_cpp#32 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 4/5 — Tooling & API

• R12 — ros2_tracing / LTTng tracepoints

  P2roadmaptooling
  benaliabderrahmane/rmw_unix_socket_cpp#31 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 4/5 — Tooling & API

• R11 — uds_ls registry inspector

  P2roadmaptooling
  benaliabderrahmane/rmw_unix_socket_cpp#30 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 4/5 — Tooling & API

• R10 — uds_doctor environment checker

  P1roadmaptooling
  benaliabderrahmane/rmw_unix_socket_cpp#29 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 4/5 — Tooling & API

• R9 — Single-copy receive path

  P2performanceroadmap
  benaliabderrahmane/rmw_unix_socket_cpp#28 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 3 — Performance
  1

• R8 — Loaned-message API (POD zero-copy)

  P2performanceroadmap
  benaliabderrahmane/rmw_unix_socket_cpp#27 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 3 — Performance
  1

• R6 — Liveliness QoS

  P1qosroadmap
  benaliabderrahmane/rmw_unix_socket_cpp#25 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 2 — QoS completeness
  1

• R5 — Deadline QoS enforcement + events

  P1qosroadmap
  benaliabderrahmane/rmw_unix_socket_cpp#24 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 2 — QoS completeness
  1

• R4 — Lifespan QoS enforcement

  P1qosroadmap
  benaliabderrahmane/rmw_unix_socket_cpp#23 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 2 — QoS completeness

• R3 — Bound the service/client take-side queues

  observabilityP0roadmap
  benaliabderrahmane/rmw_unix_socket_cpp#22 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 1 — Observability & Events

• R2 — RMW events: MESSAGE_LOST, MATCHED, QoS-incompatible

  eventsP0roadmap
  benaliabderrahmane/rmw_unix_socket_cpp#21 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 1 — Observability & Events

• R1 — Stats subsystem + uds_top CLI

  observabilityP0roadmap
  benaliabderrahmane/rmw_unix_socket_cpp#20 · Filter by author benaliabderrahmane opened on Jul 11, 2026 · Tier 1 — Observability & Events