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开启 ThreadX

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chauyin
2025-05-07 22:53:45 +08:00
parent 7f9bede0c7
commit aa43e21103
194 changed files with 42018 additions and 91 deletions
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144
Middlewares/ST/threadx/common/src/tx_timer_delete.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 */
/** */
/** Timer */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_trace.h"
#include "tx_timer.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_timer_delete PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function deletes the specified application timer. */
/* */
/* INPUT */
/* */
/* timer_ptr Pointer to timer control block */
/* */
/* OUTPUT */
/* */
/* TX_SUCCESS Successful completion status */
/* */
/* CALLS */
/* */
/* _tx_timer_system_deactivate Timer deactivation function */
/* */
/* CALLED BY */
/* */
/* Application Code */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 05-19-2020 William E. Lamie Initial Version 6.0 */
/* 09-30-2020 Yuxin Zhou Modified comment(s), */
/* resulting in version 6.1 */
/* */
/**************************************************************************/
UINT _tx_timer_delete(TX_TIMER *timer_ptr)
{
TX_INTERRUPT_SAVE_AREA
TX_TIMER *next_timer;
TX_TIMER *previous_timer;
/* Disable interrupts to remove the timer from the created list. */
TX_DISABLE
/* Determine if the timer needs to be deactivated. */
if (timer_ptr -> tx_timer_internal.tx_timer_internal_list_head != TX_NULL)
{
/* Yes, deactivate the timer before it is deleted. */
_tx_timer_system_deactivate(&(timer_ptr -> tx_timer_internal));
}
/* If trace is enabled, insert this event into the trace buffer. */
TX_TRACE_IN_LINE_INSERT(TX_TRACE_TIMER_DELETE, timer_ptr, 0, 0, 0, TX_TRACE_TIMER_EVENTS)
/* Optional timer delete extended processing. */
TX_TIMER_DELETE_EXTENSION(timer_ptr)
/* If trace is enabled, unregister this object. */
TX_TRACE_OBJECT_UNREGISTER(timer_ptr)
/* Log this kernel call. */
TX_EL_TIMER_DELETE_INSERT
/* Clear the timer ID to make it invalid. */
timer_ptr -> tx_timer_id = TX_CLEAR_ID;
/* Decrement the number of created timers. */
_tx_timer_created_count--;
/* See if the timer is the only one on the list. */
if (_tx_timer_created_count == TX_EMPTY)
{
/* Only created timer, just set the created list to NULL. */
_tx_timer_created_ptr = TX_NULL;
}
else
{
/* Link-up the neighbors. */
next_timer = timer_ptr -> tx_timer_created_next;
previous_timer = timer_ptr -> tx_timer_created_previous;
next_timer -> tx_timer_created_previous = previous_timer;
previous_timer -> tx_timer_created_next = next_timer;
/* See if we have to update the created list head pointer. */
if (_tx_timer_created_ptr == timer_ptr)
{
/* Yes, move the head pointer to the next link. */
_tx_timer_created_ptr = next_timer;
}
}
/* Execute Port-Specific completion processing. If needed, it is typically defined in tx_port.h. */
TX_TIMER_DELETE_PORT_COMPLETION(timer_ptr)
/* Restore interrupts. */
TX_RESTORE
/* Return TX_SUCCESS. */
return(TX_SUCCESS);
}