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/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Semaphore */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_semaphore.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _txe_semaphore_info_get PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function checks for errors in the semaphore information get */
/* service. */
/* */
/* INPUT */
/* */
/* semaphore_ptr Pointer to semaphore control block*/
/* name Destination for the semaphore name*/
/* current_value Destination for current value of */
/* the semaphore */
/* first_suspended Destination for pointer of first */
/* thread suspended on semaphore */
/* suspended_count Destination for suspended count */
/* next_semaphore Destination for pointer to next */
/* semaphore on the created list */
/* */
/* OUTPUT */
/* */
/* TX_SEMAPHORE_ERROR Invalid semaphore pointer */
/* status Completion status */
/* */
/* CALLS */
/* */
/* _tx_semaphore_info_get Actual semaphore info get service */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 William E. Lamie Initial Version 6.0 */
/* 09-30-2020 Yuxin Zhou Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
UINT _txe_semaphore_info_get(TX_SEMAPHORE *semaphore_ptr, CHAR **name, ULONG *current_value,
TX_THREAD **first_suspended, ULONG *suspended_count,
TX_SEMAPHORE **next_semaphore)
{
UINT status;
/* Check for an invalid semaphore pointer. */
if (semaphore_ptr == TX_NULL)
{
/* Semaphore pointer is invalid, return appropriate error code. */
status = TX_SEMAPHORE_ERROR;
}
/* Now check for a valid semaphore ID. */
else if (semaphore_ptr -> tx_semaphore_id != TX_SEMAPHORE_ID)
{
/* Semaphore pointer is invalid, return appropriate error code. */
status = TX_SEMAPHORE_ERROR;
}
else
{
/* Otherwise, call the actual semaphore information get service. */
status = _tx_semaphore_info_get(semaphore_ptr, name, current_value, first_suspended,
suspended_count, next_semaphore);
}
/* Return completion status. */
return(status);
}
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