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/***************************************************************************
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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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/**************************************************************************/
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/* */
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/* COMPONENT DEFINITION RELEASE */
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/* */
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/* tx_mutex.h 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 file defines the ThreadX mutex management component, */
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/* including all data types and external references. It is assumed */
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/* that tx_api.h and tx_port.h have already been included. */
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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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#ifndef TX_MUTEX_H
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#define TX_MUTEX_H
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/* Define mutex control specific data definitions. */
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#define TX_MUTEX_ID ((ULONG) 0x4D555445)
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/* Determine if in-line component initialization is supported by the
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caller. */
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#ifdef TX_INVOKE_INLINE_INITIALIZATION
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/* Yes, in-line initialization is supported, remap the mutex initialization
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function. */
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#ifndef TX_MUTEX_ENABLE_PERFORMANCE_INFO
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#define _tx_mutex_initialize() \
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_tx_mutex_created_ptr = TX_NULL; \
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_tx_mutex_created_count = TX_EMPTY
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#else
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#define _tx_mutex_initialize() \
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_tx_mutex_created_ptr = TX_NULL; \
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_tx_mutex_created_count = TX_EMPTY; \
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_tx_mutex_performance_put_count = ((ULONG) 0); \
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_tx_mutex_performance_get_count = ((ULONG) 0); \
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_tx_mutex_performance_suspension_count = ((ULONG) 0); \
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_tx_mutex_performance_timeout_count = ((ULONG) 0); \
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_tx_mutex_performance_priority_inversion_count = ((ULONG) 0); \
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_tx_mutex_performance__priority_inheritance_count = ((ULONG) 0)
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#endif
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#define TX_MUTEX_INIT
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#else
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/* No in-line initialization is supported, use standard function call. */
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VOID _tx_mutex_initialize(VOID);
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#endif
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/* Define internal mutex management function prototypes. */
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VOID _tx_mutex_cleanup(TX_THREAD *thread_ptr, ULONG suspension_sequence);
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VOID _tx_mutex_thread_release(TX_THREAD *thread_ptr);
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VOID _tx_mutex_priority_change(TX_THREAD *thread_ptr, UINT new_priority);
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/* Mutex management component data declarations follow. */
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/* Determine if the initialization function of this component is including
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this file. If so, make the data definitions really happen. Otherwise,
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make them extern so other functions in the component can access them. */
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#ifdef TX_MUTEX_INIT
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#define MUTEX_DECLARE
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#else
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#define MUTEX_DECLARE extern
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#endif
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/* Define the head pointer of the created mutex list. */
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MUTEX_DECLARE TX_MUTEX * _tx_mutex_created_ptr;
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/* Define the variable that holds the number of created mutexes. */
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MUTEX_DECLARE ULONG _tx_mutex_created_count;
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#ifdef TX_MUTEX_ENABLE_PERFORMANCE_INFO
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/* Define the total number of mutex puts. */
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MUTEX_DECLARE ULONG _tx_mutex_performance_put_count;
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/* Define the total number of mutex gets. */
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MUTEX_DECLARE ULONG _tx_mutex_performance_get_count;
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/* Define the total number of mutex suspensions. */
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MUTEX_DECLARE ULONG _tx_mutex_performance_suspension_count;
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/* Define the total number of mutex timeouts. */
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MUTEX_DECLARE ULONG _tx_mutex_performance_timeout_count;
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/* Define the total number of priority inversions. */
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MUTEX_DECLARE ULONG _tx_mutex_performance_priority_inversion_count;
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/* Define the total number of priority inheritance conditions. */
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MUTEX_DECLARE ULONG _tx_mutex_performance__priority_inheritance_count;
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#endif
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/* Define default post mutex delete macro to whitespace, if it hasn't been defined previously (typically in tx_port.h). */
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#ifndef TX_MUTEX_DELETE_PORT_COMPLETION
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#define TX_MUTEX_DELETE_PORT_COMPLETION(m)
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#endif
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#endif
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