Quality RTOS & Embedded Software

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




Loading

uxQueueSpacesAvailableFromISR

Posted by microwavesafe on January 13, 2017

It would be very useful, in my code, to interrogate the size of a Queue in an ISR. Looking at the code I can't see why this would be a problem. Is the below code a valid implementation?

UBaseTypet uxQueueSpacesAvailableFromISR( const QueueHandlet xQueue ) { UBaseTypet uxReturn; uxReturn = ( ( Queuet * ) xQueue )->uxLength - ( ( Queue_t * ) xQueue )->uxMessagesWaiting; return uxReturn; }

Can anyone see any potential problems with this? Am I missing something obvious?


uxQueueSpacesAvailableFromISR

Posted by rtel on January 13, 2017

You can call uxQueueMessagesWaitingFromISR()


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




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

Latest News

FreeRTOS kernel V10 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