Module caps 

Capability bits stored in LayoutHeader::capabilities.

Constants

INDEXBUS_CAP_SUPPORTS_BLOCKING

Region has an appended wake section suitable for OS blocking.

INDEXBUS_CAP_SUPPORTS_EVENTS

Region supports the shared events queues (SPSC + MPSC).

INDEXBUS_CAP_SUPPORTS_FANOUT

Region supports fanout queues.

INDEXBUS_CAP_SUPPORTS_JOURNAL

Journal region: replayable append-only journal (new region type).

INDEXBUS_CAP_SUPPORTS_JOURNAL_STATS

Optional appended stats/counters section for journal regions.

INDEXBUS_CAP_SUPPORTS_SEQUENCER

Sequencer region: sequencer + gating sequences (new region type).

INDEXBUS_CAP_SUPPORTS_STATE

Region supports the state stream layout.