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Diffstat (limited to 'Doc/library/asyncio-task.rst')
| -rw-r--r-- | Doc/library/asyncio-task.rst | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/Doc/library/asyncio-task.rst b/Doc/library/asyncio-task.rst index afcfea8..8361257 100644 --- a/Doc/library/asyncio-task.rst +++ b/Doc/library/asyncio-task.rst @@ -74,7 +74,6 @@ Print ``"Hello World"`` every two seconds using a coroutine:: loop = asyncio.get_event_loop() loop.run_until_complete(greet_every_two_seconds()) - .. seealso:: :ref:`Hello World example using a callback <asyncio-hello-world-callback>`. @@ -104,6 +103,16 @@ Example chaining coroutines:: ``compute()`` is chained to ``print_sum()``: ``print_sum()`` coroutine waits until ``compute()`` is completed before returing its result. +Sequence diagram of the example: + +.. image:: tulip_coro.png + :align: center + +The diagram shows the logical links between the task and the two coroutines, it +does not describe exactly how things work internally. For example, the sleep +coroutine creates an internal future which uses +:meth:`BaseEventLoop.call_later` to wake up the task in 1 second. + InvalidStateError ----------------- |