106 lines
5.6 KiB
C
106 lines
5.6 KiB
C
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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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/** Timer */
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/** */
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/**************************************************************************/
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/**************************************************************************/
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#define TX_SOURCE_CODE
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/* Include necessary system files. */
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#include "tx_api.h"
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#include "tx_trace.h"
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#include "tx_timer.h"
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/**************************************************************************/
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/* */
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/* FUNCTION RELEASE */
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/* */
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/* _tx_timer_change 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 function modifies an application timer as specified by the */
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/* input. */
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/* */
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/* INPUT */
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/* */
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/* timer_ptr Pointer to timer control block */
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/* initial_ticks Initial expiration ticks */
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/* reschedule_ticks Reschedule ticks */
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/* */
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/* OUTPUT */
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/* */
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/* TX_SUCCESS Successful completion status */
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/* */
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/* CALLS */
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/* */
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/* None */
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/* */
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/* CALLED BY */
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/* */
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/* Application Code */
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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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UINT _tx_timer_change(TX_TIMER *timer_ptr, ULONG initial_ticks, ULONG reschedule_ticks)
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{
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TX_INTERRUPT_SAVE_AREA
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/* Disable interrupts to put the timer on the created list. */
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TX_DISABLE
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/* If trace is enabled, insert this event into the trace buffer. */
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TX_TRACE_IN_LINE_INSERT(TX_TRACE_TIMER_CHANGE, timer_ptr, initial_ticks, reschedule_ticks, 0, TX_TRACE_TIMER_EVENTS)
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/* Log this kernel call. */
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TX_EL_TIMER_CHANGE_INSERT
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/* Determine if the timer is active. */
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if (timer_ptr -> tx_timer_internal.tx_timer_internal_list_head == TX_NULL)
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{
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/* Setup the new expiration fields. */
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timer_ptr -> tx_timer_internal.tx_timer_internal_remaining_ticks = initial_ticks;
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timer_ptr -> tx_timer_internal.tx_timer_internal_re_initialize_ticks = reschedule_ticks;
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}
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/* Restore interrupts. */
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TX_RESTORE
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/* Return TX_SUCCESS. */
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return(TX_SUCCESS);
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}
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