Python framework for concurrent, distributed, asynchronous network programming with coroutines, asynchronous completions and message passing.
Project description
asyncoro is a Python framework for asynchronous, concurrent distributed programming using coroutines. asyncoro features include:
No callbacks or event loops! No need to lock critical sections either,
Efficient polling mechanisms epoll, kqueue, /dev/poll, Windows I/O Completion Ports (IOCP) for high performance and scalability,
Asynchronous (non-blocking) sockets and pipes, for concurrent processing of I/O,
SSL for security,
Asynchronous timers, including non-blocking sleep,
Asynchronous locking primitives similar to Python threading module,
Message passing for (local and remote) coroutines to exchange messages one-to-one with Message Queue Pattern or through broadcasting channels with Publish-Subscribe Pattern,
Location transparency with naming and locating resources,
Remote execution of coroutines for distributed/parallel programming with Remote Coroutine Invocation and message passing,
Monitoring and restarting of (local or remote) coroutines, for fault detection and fault-tolerance,
Hot-swapping of coroutine functions, for dynamic system reconfiguration,
Distributing computation fragments for remote execution of coroutines,
Thread pools with asynchronous task completions, for executing time consuming synchronous tasks,
Programs developed with asyncoro have same logic and structure as programs with threads, except for a few syntactic changes - mostly using yield with asynchronous completions that give control to asyncoro’s scheduler, which interleaves executions of coroutines, similar to the way an operating system executes multiple processes.
Unlike threads, creating processes (coroutines) with asyncoro is very efficient. Moreover, with asyncoro context switch occurs only when coroutines use yield (typically with an asychronous call), so there is no need for locking and there is no overhead of unnecessary context switches.
Installation
Run:
pip install asyncoro
asyncoro.py, disasyncoro.py, asyncfile.py are to be used with Python version 2.7+ and asyncoro3.py, disasyncoro3.py, asyncfile3.py are to be used with Python version 3.1+. asyncoro has been tested with Linux, Mac OS X and Windows. asyncoro is implemented with standard modules in Python. Under Windows efficient polling notifier I/O Completion Ports is supported only if pywin32 (http://pywin32.sourceforge.net) is installed; otherwise, inefficient ‘select’ notifier is used.
Links
License
Licensed under the terms of the MIT License.
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