iasyncio – Overlapped IO

Introduction

The AsyncIO objects wrap Overlapped IO – Microsoft’s answer to asynchronous IO – to allow fairly easy access.

Classes

class AsyncIO(handle, buffer_size=4096)

Bases: winsys.core._WinSysObject

is_complete()

Returns:True if the IO has completed

pyobject()

Return the pyobject of the underlying event so that this object can be waited on by the ipc.all() or ipc.any() functions

wait_for_completion()

Wait for the IO to complete in such a way that the wait can be interrupted by a KeyboardInterrupt.

class AsyncWriter(handle, data)

Bases: asyncio.AsyncIO

class AsyncReader(handle)

Bases: asyncio.AsyncIO

data()

Wait until the IO has completed and return the data from the read. This is expected to be called after is_complete is true.

Exceptions

exception x_asyncio(errno=None, errctx=None, errmsg=None)

References

See also

Synchronisation

Documentation on microsoft.com for synchronisation objects

Using the asyncio module

Cookbook examples of using the asyncio module