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2020-05-11 08:55:07 -06:00
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common/src/tx_mutex_initialize.c Normal file
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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 */
/** */
/** Mutex */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_mutex.h"
#ifndef TX_INLINE_INITIALIZATION
/* Locate mutex component data in this file. */
/* Define the head pointer of the created mutex list. */
TX_MUTEX * _tx_mutex_created_ptr;
/* Define the variable that holds the number of created mutexes. */
ULONG _tx_mutex_created_count;
#ifdef TX_MUTEX_ENABLE_PERFORMANCE_INFO
/* Define the total number of mutex puts. */
ULONG _tx_mutex_performance_put_count;
/* Define the total number of mutex gets. */
ULONG _tx_mutex_performance_get_count;
/* Define the total number of mutex suspensions. */
ULONG _tx_mutex_performance_suspension_count;
/* Define the total number of mutex timeouts. */
ULONG _tx_mutex_performance_timeout_count;
/* Define the total number of priority inversions. */
ULONG _tx_mutex_performance_priority_inversion_count;
/* Define the total number of priority inheritance conditions. */
ULONG _tx_mutex_performance__priority_inheritance_count;
#endif
#endif
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_mutex_initialize PORTABLE C */
/* 6.0 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function initializes the various control data structures for */
/* the mutex component. */
/* */
/* INPUT */
/* */
/* None */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* None */
/* */
/* CALLED BY */
/* */
/* _tx_initialize_high_level High level initialization */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 William E. Lamie Initial Version 6.0 */
/* */
/**************************************************************************/
VOID _tx_mutex_initialize(VOID)
{
#ifndef TX_DISABLE_REDUNDANT_CLEARING
/* Initialize the head pointer of the created mutexes list and the
number of mutexes created. */
_tx_mutex_created_ptr = TX_NULL;
_tx_mutex_created_count = TX_EMPTY;
#ifdef TX_MUTEX_ENABLE_PERFORMANCE_INFO
/* Initialize the mutex performance counters. */
_tx_mutex_performance_put_count = ((ULONG) 0);
_tx_mutex_performance_get_count = ((ULONG) 0);
_tx_mutex_performance_suspension_count = ((ULONG) 0);
_tx_mutex_performance_timeout_count = ((ULONG) 0);
_tx_mutex_performance_priority_inversion_count = ((ULONG) 0);
_tx_mutex_performance__priority_inheritance_count = ((ULONG) 0);
#endif
#endif
}