Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem


How to tell if a task exists

Posted by paulgigliotti on March 15, 2017

I have a number of timer tasks as follows;

xTaskHandle MSGTimerxxTaskhandle[MAXNUMMSGOPEN];

There can be up to 512 timers running. A timer can be killed by internal and external events, at several loctions in the code. I would like to be able to tell if the timer exists, before attempting to kill the timer. In the design, it is possible that two things will try to kill the timer. I would like to check to see if the timer has already been killed, that it no longer exists, before attempting to kill it.

How to tell if a task exists

Posted by paulgigliotti on March 15, 2017

Oops, just saw this solution, which was one thing I was thinking about...


[ Back to the top ]    [ About FreeRTOS ]    [ Privacy ]    [ Sitemap ]    [ ]

Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

Version 10.1.0 of the FreeRTOS kernel is available for immediate download. MIT licensed.

View a recording of the "OTA Update Security and Reliability" webinar, presented by TI and AWS.


FreeRTOS and other embedded software careers at AWS.

FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Espressif ESP32

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers


STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

OpenRTOS and SafeRTOS

Xilinx Microblaze and Zynq partner