Quality RTOS & Embedded Software

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


Loading

deleting task wich have a semaphore

Posted by Jose Antonio Garcia Peiro on April 10, 2010
When some task deletes another task wich have a semaphore, the semaphore automatically gives? or it is bloqued forever?

Regards
Jose Antonio Garcia Peiro

RE: deleting task wich have a semaphore

Posted by Richard Damon on April 10, 2010
I don't believe FreeRTOS handles this sort of condition automatically. Note that semaphores are not "owned" by a task, and in fact one common usage is a producer task/interrupt raises the semaphore, and a different task lowers it, and this continues indefinitely. On the other hand a mutex is owned by a particular task. I don't think that FreeRTOS will automatically release the mutex if the task is deleted.


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




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

Latest News

Meet us at Embedded World. Hall 3A-525.

Hear from Richard Barry at Embedded World. Feb 28, 16:00, Hall 4-428.

Video: Watch James Gosling & Richard Barry at re:Invent, Las Vegas 2017.

FreeRTOS kernel V10.0.1 is available for immediate download. Now MIT licensed.


FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

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