threadx
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Outline
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#define TX_SOURCE_CODE
#include "tx_api.h"
#include "tx_trace.h"
#include "tx_timer.h"
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_tx_timer_delete(TX_TIMER *)
Files
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SourceVuSTM32 Libraries and Samplesthreadxcommon/src/tx_timer_delete.c
 
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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 (timer_ptr -> tx_timer_internal.tx_timer_internal_list_head != TX_NULL) { ... } /* 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; }if (_tx_timer_created_count == TX_EMPTY) { ... } 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; }if (_tx_timer_created_ptr == timer_ptr) { ... } }else { ... } /* 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); }{ ... }
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