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开启 ThreadX
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chauyin
146
Middlewares/ST/threadx/common/inc/tx_semaphore.h
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146
Middlewares/ST/threadx/common/inc/tx_semaphore.h
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/**************************************************************************/
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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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/** Semaphore */
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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_semaphore.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 semaphore 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_SEMAPHORE_H
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#define TX_SEMAPHORE_H
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/* Define semaphore control specific data definitions. */
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#define TX_SEMAPHORE_ID ((ULONG) 0x53454D41)
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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
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semaphore initialization function. */
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#ifndef TX_SEMAPHORE_ENABLE_PERFORMANCE_INFO
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#define _tx_semaphore_initialize() \
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_tx_semaphore_created_ptr = TX_NULL; \
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_tx_semaphore_created_count = TX_EMPTY
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#else
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#define _tx_semaphore_initialize() \
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_tx_semaphore_created_ptr = TX_NULL; \
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_tx_semaphore_created_count = TX_EMPTY; \
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_tx_semaphore_performance_put_count = ((ULONG) 0); \
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_tx_semaphore_performance_get_count = ((ULONG) 0); \
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_tx_semaphore_performance_suspension_count = ((ULONG) 0); \
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_tx_semaphore_performance_timeout_count = ((ULONG) 0)
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#endif
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#define TX_SEMAPHORE_INIT
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#else
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/* No in-line initialization is supported, use standard
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function call. */
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VOID _tx_semaphore_initialize(VOID);
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#endif
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/* Define internal semaphore management function prototypes. */
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VOID _tx_semaphore_cleanup(TX_THREAD *thread_ptr, ULONG suspension_sequence);
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/* Semaphore 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_SEMAPHORE_INIT
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#define SEMAPHORE_DECLARE
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#else
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#define SEMAPHORE_DECLARE extern
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#endif
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/* Define the head pointer of the created semaphore list. */
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SEMAPHORE_DECLARE TX_SEMAPHORE * _tx_semaphore_created_ptr;
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/* Define the variable that holds the number of created semaphores. */
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SEMAPHORE_DECLARE ULONG _tx_semaphore_created_count;
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#ifdef TX_SEMAPHORE_ENABLE_PERFORMANCE_INFO
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/* Define the total number of semaphore puts. */
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SEMAPHORE_DECLARE ULONG _tx_semaphore_performance_put_count;
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/* Define the total number of semaphore gets. */
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SEMAPHORE_DECLARE ULONG _tx_semaphore_performance_get_count;
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/* Define the total number of semaphore suspensions. */
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SEMAPHORE_DECLARE ULONG _tx_semaphore_performance_suspension_count;
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/* Define the total number of semaphore timeouts. */
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SEMAPHORE_DECLARE ULONG _tx_semaphore_performance_timeout_count;
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#endif
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/* Define default post semaphore delete macro to whitespace, if it hasn't been defined previously (typically in tx_port.h). */
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#ifndef TX_SEMAPHORE_DELETE_PORT_COMPLETION
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#define TX_SEMAPHORE_DELETE_PORT_COMPLETION(s)
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#endif
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#endif
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