75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/* nano_context_data.c - VxMicro nanokernel context custom data module */
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/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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DESCRIPTION
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This module contains routines for accessing a context's custom data. The
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custom data is not used by the VxMicro kernel itself, and is freely available
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for the context's "program" to use as it sees fit.
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*/
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#ifdef CONFIG_CONTEXT_CUSTOM_DATA
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#include <nanok.h>
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/*******************************************************************************
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*
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* context_custom_data_set - set context's custom data
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*
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* This routine sets the value of context-controlled data for the
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* current task or fiber.
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*
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* RETURNS: N/A
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*/
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void context_custom_data_set(void *value /* new value */
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)
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{
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_NanoKernel.current->custom_data = value;
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}
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/*******************************************************************************
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*
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* context_custom_data_get - get context's custom data
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*
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* This function returns the value of the context-controlled data for the
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* current task or fiber.
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*
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* RETURNS: current handle value
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*/
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void *context_custom_data_get(void)
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{
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return _NanoKernel.current->custom_data;
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}
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#endif /* CONFIG_CONTEXT_CUSTOM_DATA */
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