127 lines
6.1 KiB
C
127 lines
6.1 KiB
C
/**************************************************************************/
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/* */
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/* Copyright (c) Microsoft Corporation. All rights reserved. */
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/* */
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/* This software is licensed under the Microsoft Software License */
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/* Terms for Microsoft Azure RTOS. Full text of the license can be */
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/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
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/* and in the root directory of this software. */
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/* */
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/**************************************************************************/
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/**************************************************************************/
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/**************************************************************************/
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/** */
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/** ThreadX Component */
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/** */
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/** Event Flags */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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#define TX_SOURCE_CODE
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/* Include necessary system files. */
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#include "tx_api.h"
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#include "tx_event_flags.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _txe_event_flags_set PORTABLE C */
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/* 6.1 */
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/* AUTHOR */
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/* */
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/* William E. Lamie, Microsoft Corporation */
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/* */
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/* DESCRIPTION */
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/* */
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/* This function checks for errors in the set event flags function */
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/* call. */
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/* */
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/* INPUT */
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/* */
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/* group_ptr Pointer to group control block */
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/* flags_to_set Event flags to set */
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/* set_option Specified either AND or OR */
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/* operation on the event flags */
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/* */
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/* OUTPUT */
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/* */
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/* TX_GROUP_ERROR Invalid event flags group pointer */
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/* TX_OPTION_ERROR Invalid set option */
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/* status Actual completion status */
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/* */
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/* CALLS */
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/* */
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/* _tx_event_flags_set Actual set event flags function */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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/* */
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/* RELEASE HISTORY */
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/* */
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/* DATE NAME DESCRIPTION */
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/* */
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/* 09-30-2020 William E. Lamie Initial Version 6.1 */
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/* */
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/**************************************************************************/
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UINT _txe_event_flags_set(TX_EVENT_FLAGS_GROUP *group_ptr, ULONG flags_to_set, UINT set_option)
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{
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UINT status;
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/* Default status to success. */
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status = TX_SUCCESS;
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/* Check for an invalid event flag group pointer. */
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if (group_ptr == TX_NULL)
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{
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/* Event flags group pointer is invalid, return appropriate error code. */
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status = TX_GROUP_ERROR;
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}
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/* Now check for invalid event flag group ID. */
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else if (group_ptr -> tx_event_flags_group_id != TX_EVENT_FLAGS_ID)
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{
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/* Event flags group pointer is invalid, return appropriate error code. */
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status = TX_GROUP_ERROR;
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}
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else
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{
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/* Check for invalid set option. */
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if (set_option != TX_AND)
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{
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if (set_option != TX_OR)
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{
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/* Invalid set events option, return appropriate error. */
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status = TX_OPTION_ERROR;
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}
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}
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}
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/* Determine if everything is okay. */
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if (status == TX_SUCCESS)
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{
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/* Call actual event flags set function. */
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status = _tx_event_flags_set(group_ptr, flags_to_set, set_option);
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}
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/* Return completion status. */
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return(status);
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}
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