118 lines
6.4 KiB
C
118 lines
6.4 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_info_get 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 event flag information get */
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/* service. */
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/* */
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/* INPUT */
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/* */
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/* group_ptr Pointer to event flag group */
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/* name Destination for the event flags */
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/* group name */
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/* current_flags Current event flags */
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/* first_suspended Destination for pointer of first */
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/* thread suspended on event flags */
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/* suspended_count Destination for suspended count */
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/* next_group Destination for pointer to next */
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/* event flag group on the created */
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/* list */
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/* */
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/* OUTPUT */
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/* */
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/* TX_GROUP_ERROR Invalid event flag group pointer */
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/* status Completion status */
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/* */
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/* CALLS */
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/* */
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/* _tx_event_flags_info_get Actual event flags group info */
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/* get service */
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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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/* 05-19-2020 William E. Lamie Initial Version 6.0 */
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/* 09-30-2020 Yuxin Zhou Modified comment(s), */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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UINT _txe_event_flags_info_get(TX_EVENT_FLAGS_GROUP *group_ptr, CHAR **name, ULONG *current_flags,
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TX_THREAD **first_suspended, ULONG *suspended_count,
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TX_EVENT_FLAGS_GROUP **next_group)
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{
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UINT status;
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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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/* Otherwise, call the actual event flags group information get service. */
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status = _tx_event_flags_info_get(group_ptr, name, current_flags, first_suspended,
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suspended_count, next_group);
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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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