source: rtems/cpukit/score/src/coretodhookdata.c @ 08bd7d3

5
Last change on this file since 08bd7d3 was 08bd7d3, checked in by Joel Sherrill <joel@…>, on 11/12/19 at 15:33:41

Add TOD Hooks to allow BSP to take action when TOD is set

Two use cases were envisioned for this.

1) a BSP or application which desires to update a real-time clock

when the RTEMS TOD is set.

2) a paravirtualized BSP can use this to propagate setting the time

in an RTEMS application to the hosting environment. This enables
the entire set of applications in the virtualized environments
to have a single consistent TOD.

  • Property mode set to 100644
File size: 1.7 KB
Line 
1/**
2 * @file
3 *
4 * @brief TOD Hook Set
5 *
6 * @ingroup RTEMSScoreTODHooks
7 */
8
9/*
10 *  SPDX-License-Identifier: BSD-2-Clause
11 *
12 *  COPYRIGHT (c) 2019.
13 *  On-Line Applications Research Corporation (OAR).
14 *
15 * Redistribution and use in source and binary forms, with or without
16 * modification, are permitted provided that the following conditions
17 * are met:
18 * 1. Redistributions of source code must retain the above copyright
19 *    notice, this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright
21 *    notice, this list of conditions and the following disclaimer in the
22 *    documentation and/or other materials provided with the distribution.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#if HAVE_CONFIG_H
38#include "config.h"
39#endif
40
41#include <rtems/score/todimpl.h>
42#include <rtems/score/chainimpl.h>
43 
44Chain_Control _TOD_Hooks = CHAIN_INITIALIZER_EMPTY(_TOD_Hooks);
45
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