atomic-waitgroup

A waitgroup support async with advanced features, implemented with atomic operations to reduce locking in mind.

document: https://docs.rs/atomic-waitgroup/latest/atomic_waitgroup/

Features

• wait_to() is supported to wait for a value larger than zero.

• wait() & wait_to() can be canceled by tokio::time::timeout or futures::select!.

• Assumes only one thread calls wait(). If multiple concurrent wait() is detected, will panic for this invalid usage.

• done() & wait() is allowed to called concurrently.

• add() & done() is allowed to called concurrently.

• Assumes add() & wait() are in the same thread.