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//! Concurrent FIFO event queue / message queue. Multi consumer. Each consumer receive all messages.
//! Lock-free reading. Write under lock (for [mpmc] version). Write lock does not block read.
//!
//! Linked list of chunks (C++ std::deque -like). Each chunk have "read counter".
//! When "read counter" reach readers count - it is safe to drop chunk. Chunk considered read, when
//! Reader reach its end. See `doc/principle-of-operation.md`.
//!
//! `EventQueue` live, until `EventReader`s live.
//! In order to completely drop `EventQueue` - drop all associated `EventReader`s.
//!
//! # Features
//!
//! * `double_buffering` : Reuse biggest freed chunk.
// TODO: make double_buffering not a feature.
/// Epoch of EventQueue::start_position
type StartPositionEpoch = crateEpochMAX as u64}>;
pub use crateCleanupMode;
pub use crateLendingIterator;