apple/swift-async-algorithms
Swift Async Algorithms
This project is a library of algorithms for transforming, filtering, and combining asynchronous data streams in Swift. It provides a toolkit for managing asynchronous sequences, offering a concurrent sequence processor to merge, zip, and concatenate multiple streams into single outputs.
The library distinguishes itself through specialized timing and flow control mechanisms. It implements asynchronous back-pressure to synchronize producer and consumer speeds and provides a toolkit for event timing, including debouncing, throttling, and the generation of periodic timers.
The capability surface extends to comprehensive data transformation and stream coordination. This includes utilities for buffering, chunking, and filtering sequences, as well as mechanisms for inter-task communication and the conversion of synchronous sequences into asynchronous streams.
Features
- Asynchronous Data Streaming - Offers a comprehensive toolkit for transforming, filtering, and processing asynchronous data streams.
- Back-pressure Handling - Implements back-pressure mechanisms to synchronize producer and consumer speeds and prevent memory exhaustion.
- Asynchronous Streams - Combines multiple asynchronous data streams of the same type into a single sequence delivering elements as available.
- Stream Composition - Provides utilities to wrap and transform asynchronous streams while maintaining lazy evaluation.
- Async Sequence Libraries - Implements a comprehensive collection of algorithms for transforming, filtering, and combining asynchronous data streams in Swift.
- Timing Control - Provides periodic timers and rate-limiting mechanisms like debouncing and throttling for asynchronous events.
- Concurrency Communication - Enables value exchange between producer and consumer tasks using asynchronous sequences with back-pressure.
- Concurrent Sequence Processing - Provides a processor to merge, zip, and concatenate multiple asynchronous sequences into single streams.
- Sequence Throttling - Limits the rate of emitted values by ensuring a minimum time interval elapses between elements.
- Event Debouncing - Implements a functional reactive primitive to delay event emission until a period of inactivity has elapsed.
- Concurrent Stream Merging - Coordinates multiple asynchronous producers into a single output stream by awaiting values from multiple sources.
- Time-Based Event Scheduling - Provides an abstract clock mechanism for triggering timed events and interval-based emissions.
- Timed Interval Generators - Provides utilities to generate asynchronous streams that emit values repeatedly at defined time intervals.
- Asynchronous Stream Buffering - Collects elements from a stream into temporary storage to handle data bursts or group elements.
- Stateful Stream Processing - Maintains internal state, buffers, and timers to enable stateful transformations like debouncing and throttling.
- Sequence Transformations - Provides algorithms for mapping, filtering, and transforming asynchronous sequences into other sequences.
- Sequence Concatenation - Flattens a sequence of sequences into a single stream by processing each inner sequence completely.
- Stream Timing Coordination - Coordinates the timing and merging of multiple asynchronous streams to synchronize value delivery.
- Inter-Task Message Queues - Facilitates communication between concurrent tasks using asynchronous sequences and reference-type channels.
- Asynchronous Byte Sequence Iteration - Iterates over byte sequences using efficient memory management to minimize overhead during asynchronous reads.
- AsyncSequence Algorithm Specializations - Implements common data manipulation patterns using Swift generics to support any type conforming to AsyncSequence.
- Stream Buffering - Provides buffering mechanisms to collect stream elements into chunks to manage data bursts and memory.
- Reactive Value Combinations - Provides operators to combine multiple asynchronous reactive value sources into single derived streams.
