115 lines
5.4 KiB
C
115 lines
5.4 KiB
C
/***************************************************************************
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* Copyright (c) 2024 Microsoft Corporation
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*
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* This program and the accompanying materials are made available under the
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* terms of the MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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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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/** Semaphore */
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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_semaphore.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _txe_semaphore_ceiling_put 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 semaphore ceiling put */
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/* function call. */
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/* */
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/* INPUT */
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/* */
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/* semaphore_ptr Pointer to semaphore */
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/* ceiling Maximum value of semaphore */
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/* */
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/* OUTPUT */
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/* */
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/* TX_SEMAPHORE_ERROR Invalid semaphore pointer */
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/* TX_INVALID_CEILING Invalid semaphore ceiling */
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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_semaphore_ceiling_put Actual semaphore ceiling put */
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/* 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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/* 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_semaphore_ceiling_put(TX_SEMAPHORE *semaphore_ptr, ULONG ceiling)
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{
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UINT status;
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/* Check for an invalid semaphore pointer. */
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if (semaphore_ptr == TX_NULL)
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{
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/* Semaphore pointer is invalid, return appropriate error code. */
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status = TX_SEMAPHORE_ERROR;
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}
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/* Now check for a valid semaphore ID. */
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else if (semaphore_ptr -> tx_semaphore_id != TX_SEMAPHORE_ID)
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{
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/* Semaphore pointer is invalid, return appropriate error code. */
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status = TX_SEMAPHORE_ERROR;
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}
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/* Determine if the ceiling is valid - must be greater than 1. */
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else if (ceiling == ((ULONG) 0))
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{
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/* Invalid ceiling, return error. */
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status = TX_INVALID_CEILING;
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}
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else
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{
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/* Call actual semaphore ceiling put function. */
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status = _tx_semaphore_ceiling_put(semaphore_ptr, ceiling);
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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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