squadron 3.4.0

Multithreading and worker thread pool in Dart to offload CPU-bound and heavy I/O tasks to Isolate or Web Worker threads.

3.4.0

• Rewritten streaming implementations (fix for https://github.com/d-markey/squadron/issues/8).
• Added unit tests.

3.3.2

• Implemented a LocalLogger to have Web workers log messages from the main window (effectively logging via Dart debugger if present).
• Removed import of dart:isolate from _worker_runner.dart.
• Made coverage a dev dependency.
• Added a tool to extract coverage metrics during Github Dart workflow.
• Updates badges to include coverage metrics and platform info.

3.3.1

• Fixed streaming from LocalWorker.
• Added tests for LocalWorker.
• Improved cancellation handling.
• Added tests to improve test coverage.

3.3.0

• Implemented LocalWorker, a worker-like class living in the same thread as its owner and available for inter-worker messaging. For instance, in a Flutter app, instantiating a LocalWorker in the main thread enables other workers to (indirectly) call Flutter APIs that are otherwise not available in the context of a secondary thread.
• LocalWorker uses the same concepts and approach as Workers, such as the operations map and the WorkerService interface.

3.2.2

• Document types and release mode (special thanks to SwissCheese5).
• More error handling at communication points.
• Use lower log levels for internal Squadron log messages.
• Added test coverage.

3.2.1

• Document the new logging feature.
• Make sendRequest() async in browser Channel (implementation closer to that of native Channel).
• Add a timestamp to pool workers to record the time when it was assigned its last task.
• Sort pool workers to distribute tasks to those that have the largest capacity and the oldest timestamp.
• Add command property to WorkerException.
• Reorganized the test folder.
• Recompiled test Web workers.

3.2.0

• Added a logging mechanism to facilitate debugging Squadron's internals.
• Reworked connection flow between main program and worker.
• Reworked task scheduling.
• Fixed issue https://github.com/d-markey/squadron/issues/3.
• Added tests for logging and workers failing to initialize.

3.1.4

• Implemented cancellation token to enable worker task notification that cancellation has occured.
• Implemented TimeOutToken, CancellableToken and CompositeToken.
• Updated README.md.
• Added unit tests.

3.1.0

• Several minor changes (some possibly breaking changes but easy to fix).
• Split library into squadron_service.dart (worker services only), squadron_worker.dart (worker services and workers without pool) vs. squadron.dart (worker services, workers and pools).
• Split Channel into Channel (used to send a WorkerRequest) and WorkerChannel (used to send a WorkerResponse).
• Added ConcurrencySettings to eventually replace minWorkers, maxWorkers and maxParallel.
• Added WorkerPool.execute() (will eventually replace WorkerPool.compute()).
• Added WorkerPool.scheduleTask() to schedule a ValueTask. Result will be accessible from future ValueTask.value.
• Added WorkerPool.scheduleStream() to schedule a StreamTask. Results will be accessible from stream StreamTask.stream.
• ValueTask and StreamTask provide information on task execution (eg. status, wait time, execution time...).
• Added WorkerPool.cancel() to support worker task cancellation.
• Updated README.md.
• Added unit tests.

3.0.0

• Split library into squadron_service.dart (worker services only), squadron.dart (worker services and workers without pool) vs. squadron_pool.dart (worker services, workers and pools).
• Moved connect() and process() from Worker to WorkerService.
• Provided the run() function to facilitate implementation of platform workers.
• Adapted tests and examples.
• Updated README.md.

2.0.2

• Single test code base for both platforms.
• Added BitCoin service to test live network access from workers (courtesy of coindesk.com).
• Added PiDigits service (related to https://github.com/d-markey/squadron/issues/1).
• Retaining attempts based on manually operating a browser to run tests in /web (different test code base) and /test/browser-tests (same test code base).

2.0.1

• Remove dependency on js package.

2.0.0

• This version supports workers running in Isolates as well as Web Workers.
• Platform implementations are now more straightforward thanks to Worker.connect() and Worker.process().
• See examples on how to scaffold services, Squadron Workers and platform workers.
• Added tests for Web Workers (run with dart run build_runner serve -r and point your browser to http://localhost:8080/index.html).

1.0.2

• Added support for minimum count of workers in pool.
• Make sure Isolate is killed when the worker is stopped.
• Keep track of stats from stopped workers.
• Update tests & examples (proper error handling, command map, worker monitoring).

1.0.1

• Improve error handling.
• Improve documentation.
• Add unit tests.

1.0.0

• Initial version.