Quality RTOS & Embedded Software

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




Loading

Memory leak ?

Posted by pajk on January 17, 2009
Hi,

I am new in the filed of FreeRtos. I have a simple question regarding code.

Inside function:

xQueueGenericSend( xQueueHandle pxQueue, const void * const pvItemToQueue, portTickType xTicksToWait, portBASE_TYPE xCopyPosition )

In case function was called with xTicksToWait >0 and situation happened to be next:
--- queue is full
--- task has not yet timed out we (xTaskCheckForTimeOut returns false)

as consequence we call vTaskPlaceOnEventList( &( pxQueue->xTasksWaitingToSend ), xTicksToWait ); in each iteration of do-while loop.

Question: Will not waiting list build up in size (memory leak) ?


Pajk


RE: Memory leak ?

Posted by Richard on January 17, 2009
I'm not sure I completely understand your question - but once a task has been placed on the event list it is in the Blocked state and will not run again until it has been unblocked. Therefore it cannot be placed on the event list again until it has already been unblocked and removed from the event list. It will therefore only be on the event list at most once at any particular time.

Regards.

RE: Memory leak ?

Posted by pajk on January 31, 2009
Hi,

Richard , it is like you wrote. After weekend inspecting the code I must agree with you.

This topic needs no further debate, so it should be closed.

Thanks again, Richard. Your advice led me the right way.


Izi Pajk


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




Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.

Latest News:

FreeRTOS V9.0.0 is now available for download.


Free TCP/IP and file system demos for the RTOS


Sponsored Links

⇓ Now With No Code Size Limit! ⇓
⇑ Free Download Without Registering ⇑


FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Renesas Electronics Gold Alliance RTOS Partner.jpg

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Atmel RTOS partner supporting ARM Cortex-M3 and AVR32 microcontrollers

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

Xilinx Microblaze and Zynq partner

Silicon Labs low power RTOS partner

Altera RTOS partner for Nios II and Cortex-A9 SoC

Freescale Alliance RTOS Member supporting ARM and ColdFire microcontrollers

Infineon ARM Cortex-M microcontrollers

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

Cypress RTOS partner supporting ARM Cortex-M3

Fujitsu RTOS partner supporting ARM Cortex-M3 and FM3

Microsemi (previously Actel) RTOS partner supporting ARM Cortex-M3

Atollic Partner

IAR Partner

Keil ARM Partner

Embedded Artists