149 lines
6.5 KiB
C
149 lines
6.5 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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/** Mutex */
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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_trace.h"
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#include "tx_mutex.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _tx_mutex_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 retrieves information from the specified mutex. */
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/* */
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/* INPUT */
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/* */
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/* mutex_ptr Pointer to mutex control block */
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/* name Destination for the mutex name */
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/* count Destination for the owner count */
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/* owner Destination for the owner's */
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/* thread control block pointer */
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/* first_suspended Destination for pointer of first */
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/* thread suspended on the mutex */
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/* suspended_count Destination for suspended count */
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/* next_mutex Destination for pointer to next */
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/* mutex on the created list */
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/* */
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/* OUTPUT */
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/* */
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/* status Completion status */
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/* */
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/* CALLS */
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/* */
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/* None */
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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 _tx_mutex_info_get(TX_MUTEX *mutex_ptr, CHAR **name, ULONG *count, TX_THREAD **owner,
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TX_THREAD **first_suspended, ULONG *suspended_count,
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TX_MUTEX **next_mutex)
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{
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TX_INTERRUPT_SAVE_AREA
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/* Disable interrupts. */
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TX_DISABLE
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/* If trace is enabled, insert this event into the trace buffer. */
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TX_TRACE_IN_LINE_INSERT(TX_TRACE_MUTEX_INFO_GET, mutex_ptr, 0, 0, 0, TX_TRACE_MUTEX_EVENTS)
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/* Log this kernel call. */
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TX_EL_MUTEX_INFO_GET_INSERT
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/* Retrieve all the pertinent information and return it in the supplied
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destinations. */
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/* Retrieve the name of the mutex. */
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if (name != TX_NULL)
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{
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*name = mutex_ptr -> tx_mutex_name;
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}
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/* Retrieve the current ownership count of the mutex. */
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if (count != TX_NULL)
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{
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*count = ((ULONG) mutex_ptr -> tx_mutex_ownership_count);
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}
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/* Retrieve the current owner of the mutex. */
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if (owner != TX_NULL)
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{
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*owner = mutex_ptr -> tx_mutex_owner;
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}
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/* Retrieve the first thread suspended on this mutex. */
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if (first_suspended != TX_NULL)
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{
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*first_suspended = mutex_ptr -> tx_mutex_suspension_list;
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}
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/* Retrieve the number of threads suspended on this mutex. */
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if (suspended_count != TX_NULL)
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{
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*suspended_count = (ULONG) mutex_ptr -> tx_mutex_suspended_count;
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}
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/* Retrieve the pointer to the next mutex created. */
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if (next_mutex != TX_NULL)
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{
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*next_mutex = mutex_ptr -> tx_mutex_created_next;
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}
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/* Restore interrupts. */
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TX_RESTORE
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/* Return completion status. */
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return(TX_SUCCESS);
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}
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