Requirements for data synchronization in real-time applications differ from traditional high-load ones. The main difference is that real-time synchronization components must carefully respect and follow the traditional operating-system approach, avoid user-space spin-loops and other busy-waiting techniques (see Channels in Rust. Part 2 where such problems are clearly described).
Components
This crate provides a pack of real-time-safe synchronization components for various typical and custom use-cases.
- Data Buffer
- Synchronization cells
- Sync/async channels
- Policy-based channels
- Semaphore
- Time tools
Locking
On Linux the crate uses built-in priority-inheritance [pi::Mutex]
implementation and re-exports this module as locking.
On other platforms, all components use Mutex/Condvar synchronization primitives
from parking_lot_rt - a real-time
fork of the well-known parking_lot
crate. This is a relatively safe Mutex/RwLock with minimal user-space
spin-waiting. The module is re-exported as locking as well.
References
RTSC is a part of RoboPLC project.