Module event 

EventActor — typed actor surface around CudaEvent.

cudarc 0.19 ships a safe CudaEvent (Record / Wait / Query / ElapsedTime / Synchronize) but doesn’t expose IPC. This actor wraps both the safe layer and the sys-level cuIpcGetEventHandle/cuIpcOpenEventHandle for cross-process event sharing.

Lifecycle:

1. Construct with EventActor::props(ctx) — captures an Arc<CudaContext> so events can be created on demand.
2. Send CreateEvent { reply } (returns an Event) or Record { event, stream, ... } to push the event onto a captured stream.
3. Wait/query/elapsed/synchronize as needed.
4. (gated cuda-ipc) Send GetIpcHandle on the source process, transmit the bytes via your application channel, then OpenIpcHandle on the destination.

Structs

Event

Typed handle to a CudaEvent. Cloneable via Arc; the underlying cuEventDestroy is run when the last clone drops.

EventActor

IpcEventHandle

Cross-process IPC handle for an event. The 64-byte reserved blob matches CUipcEventHandle_st.

Enums

EventMsg