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开启 ThreadX
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chauyin
175
Middlewares/ST/threadx/common/inc/tx_queue.h
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175
Middlewares/ST/threadx/common/inc/tx_queue.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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/** Queue */
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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_queue.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 queue 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_QUEUE_H
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#define TX_QUEUE_H
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/* Define queue control specific data definitions. */
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#define TX_QUEUE_ID ((ULONG) 0x51554555)
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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 queue initialization
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function. */
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#ifndef TX_QUEUE_ENABLE_PERFORMANCE_INFO
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#define _tx_queue_initialize() \
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_tx_queue_created_ptr = TX_NULL; \
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_tx_queue_created_count = TX_EMPTY
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#else
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#define _tx_queue_initialize() \
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_tx_queue_created_ptr = TX_NULL; \
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_tx_queue_created_count = TX_EMPTY; \
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_tx_queue_performance_messages_sent_count = ((ULONG) 0); \
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_tx_queue_performance__messages_received_count = ((ULONG) 0); \
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_tx_queue_performance_empty_suspension_count = ((ULONG) 0); \
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_tx_queue_performance_full_suspension_count = ((ULONG) 0); \
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_tx_queue_performance_timeout_count = ((ULONG) 0)
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#endif
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#define TX_QUEUE_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_queue_initialize(VOID);
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#endif
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/* Define the message copy macro. Note that the source and destination
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pointers must be modified since they are used subsequently. */
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#ifndef TX_QUEUE_MESSAGE_COPY
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#define TX_QUEUE_MESSAGE_COPY(s, d, z) \
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*(d)++ = *(s)++; \
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if ((z) > ((UINT) 1)) \
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{ \
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while (--(z)) \
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{ \
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*(d)++ = *(s)++; \
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} \
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}
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#endif
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/* Define internal queue management function prototypes. */
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VOID _tx_queue_cleanup(TX_THREAD *thread_ptr, ULONG suspension_sequence);
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/* Queue 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_QUEUE_INIT
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#define QUEUE_DECLARE
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#else
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#define QUEUE_DECLARE extern
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#endif
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/* Define the head pointer of the created queue list. */
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QUEUE_DECLARE TX_QUEUE * _tx_queue_created_ptr;
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/* Define the variable that holds the number of created queues. */
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QUEUE_DECLARE ULONG _tx_queue_created_count;
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#ifdef TX_QUEUE_ENABLE_PERFORMANCE_INFO
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/* Define the total number of messages sent. */
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QUEUE_DECLARE ULONG _tx_queue_performance_messages_sent_count;
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/* Define the total number of messages received. */
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QUEUE_DECLARE ULONG _tx_queue_performance__messages_received_count;
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/* Define the total number of queue empty suspensions. */
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QUEUE_DECLARE ULONG _tx_queue_performance_empty_suspension_count;
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/* Define the total number of queue full suspensions. */
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QUEUE_DECLARE ULONG _tx_queue_performance_full_suspension_count;
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/* Define the total number of queue full errors. */
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QUEUE_DECLARE ULONG _tx_queue_performance_full_error_count;
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/* Define the total number of queue timeouts. */
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QUEUE_DECLARE ULONG _tx_queue_performance_timeout_count;
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#endif
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/* Define default post queue delete macro to whitespace, if it hasn't been defined previously (typically in tx_port.h). */
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#ifndef TX_QUEUE_DELETE_PORT_COMPLETION
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#define TX_QUEUE_DELETE_PORT_COMPLETION(q)
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#endif
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#endif
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