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A D port of Python's asyncio library
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README.md
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README.md

Build Status

asynchronous

This library provides infrastructure for writing concurrent code using coroutines, multiplexing I/O access over sockets and other resources, running network clients and servers, and other related primitives.

It implements most of the python 3 asyncio API.

API Reference

Can be found at: http://dcarp.github.io/asynchronous/index.html

Implementation status

  • Timers (done)
  • Futures, Tasks (done)
  • Sockets (done)
  • Streams (done)
  • Subprocesses (not implemented)
  • Locks and semaphores (done)
  • Queues (done)

Why yet another async library? What is wrong with vibe.d?

  • asynchronous is a library and not a framework
  • it is not web-oriented, compatible with std.socket
  • arguably nicer API
  • event loop start/stop control
  • uses @Coroutine UDA to mark functions that could trigger a task (fiber) switch, although this is not enforced yet by the compiler.

Examples and tutorials

Some small examples can be found in the test directory or as unittests. For larger examples please use the Python/asyncio resources.

Please keep in mind that, in contrast with Python/asyncio, in D a coroutine MUST be called from within a Task, otherwise it causes a run-time error on the fiber switch. Basic rule: if not called from another coroutine, any coroutine call need to be wrapped by ensureFuture or EventLoop.createTask.

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