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.. Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed
with this work for additional information regarding copyright
ownership. The ASF licenses this file to you under the Apache
License, Version 2.0 (the "License"); you may not use this file
except in compliance with the License. You may obtain a copy of
the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. See the License for the specific language governing
permissions and limitations under the License.
.. include:: ../../../common.defs
.. default-domain:: c
TSContSchedule
**************
Synopsis
========
.. code-block:: cpp
#include <ts/ts.h>
.. function:: TSAction TSContSchedule(TSCont contp, TSHRTime timeout)
Description
===========
Schedules :arg:`contp` to run :arg:`delay` milliseconds in the future. This is approximate. The delay
will be at least :arg:`delay` but possibly more. Resolutions finer than roughly 5 milliseconds will
not be effective. :arg:`contp` is required to have a mutex, which is provided to
:func:`TSContCreate`.
The return value can be used to cancel the scheduled event via :func:`TSActionCancel`. This is
effective until the continuation :arg:`contp` is being dispatched. However, if it is scheduled on
another thread this can be problematic to be correctly timed. The return value can be checked with
:func:`TSActionDone` to see if the continuation ran before the return, which is possible if
:arg:`timeout` is `0`. Returns ``nullptr`` if thread affinity was cleared.
TSContSchedule() or TSContScheduleEvery() will default to set the thread affinity to the calling thread
when no affinity is already set for example, using :func:`TSContThreadAffinitySet`
Note that the TSContSchedule() family of API shall only be called from an ATS EThread.
Calling it from raw non-EThreads can result in unpredictable behavior.
See Also
========
:doc:`TSContScheduleEvery.en`
:doc:`TSContScheduleOnPool.en`
:doc:`TSContScheduleOnThread.en`
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