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SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
brief: |
Task begin extensions are invoked when a task begins execution.
copyrights:
- Copyright (C) 2009, 2021 embedded brains GmbH & Co. KG
definition:
default: ${/score/userext/if/thread-begin:/name} ${.:/name}
variants: []
description: null
enabled-by: true
index-entries: []
interface-type: typedef
links:
- role: interface-placement
uid: header
- role: interface-ingroup
uid: group
- role: constraint
uid: /constraint/thread-dispatching-enabled
- role: constraint
uid: /constraint/object-allocator-not-owner
name: rtems_task_begin_extension
notes: |
The task begin extensions are invoked in
${/glossary/extension-forward-order:/term}.
Task begin extensions are invoked with thread dispatching enabled. This
allows the use of dynamic memory allocation, creation of POSIX keys, and use
of C++ thread-local storage. Blocking synchronization primitives are allowed
also.
The task begin extensions are invoked before the global construction.
The task begin extensions may be called as a result of a task restart through
${../../task/if/restart:/name}.
params:
- description: |
is the ${/glossary/tcb:/term} of the executing thread.
dir: null
name: executing
return: null
type: interface
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