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authorJosé Bollo <jose.bollo@iot.bzh>2019-07-16 23:39:27 +0200
committerJose Bollo <jose.bollo@iot.bzh>2019-07-18 15:38:02 +0200
commit6dfeafe7e4fa582b3db3f950136bc97f8611fc6d (patch)
tree62386661fe495dd8992260c89e09757326450edc /old-docs/afb-overview.md
parent5b5968815dc672467f40ed6b49f05a590bdb8b4d (diff)
Tag broadcasted events with UUID and hop
When API have mutual dependencies, leading to loops in dependecies, broadcasting an event never ends because of the loop (see SPEC-2625). To avoid that weird flood of events, a unic identifier (UUID) is attached to broadcasted event and a tiny memory records previously broadcasted events to avoid re-sending an already sent event. The size of the memory can be set using the macro variable EVENT_BROADCAST_MEMORY_COUNT whose default value is 8. It can be reduced to 0. An other mecanism is added to limit the count of hops that a broadcasted event can do. That count can be set using the macro variable EVENT_BROADCAST_HOP_MAX whose default value is 10. Bug-AGL: SPEC-2625 Change-Id: I29550a8a5c8f5e2ffb20edc3330357a1e870c0e2 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
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