146 lines
6.5 KiB
C
146 lines
6.5 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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/** 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_mutex.h"
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#ifndef TX_INLINE_INITIALIZATION
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/* Locate mutex component data in this file. */
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/* Define the head pointer of the created mutex list. */
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TX_MUTEX * _tx_mutex_created_ptr;
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/* Define the variable that holds the number of created mutexes. */
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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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ULONG _tx_mutex_performance_put_count;
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/* Define the total number of mutex gets. */
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ULONG _tx_mutex_performance_get_count;
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/* Define the total number of mutex suspensions. */
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ULONG _tx_mutex_performance_suspension_count;
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/* Define the total number of mutex timeouts. */
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ULONG _tx_mutex_performance_timeout_count;
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/* Define the total number of priority inversions. */
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ULONG _tx_mutex_performance_priority_inversion_count;
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/* Define the total number of priority inheritance conditions. */
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ULONG _tx_mutex_performance__priority_inheritance_count;
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#endif
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _tx_mutex_initialize 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 initializes the various control data structures for */
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/* the mutex component. */
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/* */
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/* INPUT */
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/* */
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/* None */
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/* */
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/* OUTPUT */
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/* */
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/* None */
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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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/* _tx_initialize_high_level High level initialization */
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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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/* opt out of function when */
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/* TX_INLINE_INITIALIZATION is */
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/* defined, */
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/* resulting in version 6.1 */
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/* */
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/**************************************************************************/
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VOID _tx_mutex_initialize(VOID)
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{
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#ifndef TX_DISABLE_REDUNDANT_CLEARING
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/* Initialize the head pointer of the created mutexes list and the
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number of mutexes created. */
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_tx_mutex_created_ptr = TX_NULL;
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_tx_mutex_created_count = TX_EMPTY;
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#ifdef TX_MUTEX_ENABLE_PERFORMANCE_INFO
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/* Initialize the mutex performance counters. */
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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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#endif
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}
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#endif
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