FreeRTOS Support Archive
The FreeRTOS support forum is used to obtain active support directly from Real
Time Engineers Ltd. In return for using our top quality software and services for
free, we request you play fair and do your bit to help others too! Sign up
to receive notifications of new support topics then help where you can.
This is a read only archive of threads posted to the FreeRTOS support forum.
The archive is updated every week, so will not always contain the very latest posts.
Use these archive pages to search previous posts. Use the Live FreeRTOS Forum
link to reply to a post, or start a new support thread.
[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [September 2013 Threads]
This issue was raised in 2008 (http://www.freertos.org/FreeRTOSSupportForumArchive/September2008/freertostakingamutexmultipletimes2258181.html) but I don't think the answer was clear.
I have a similar requirement in that one task could call a function that needs exclusive use of a resource several times before finishing with it. I propose using xSemaphoreTake() within the function, with the last call invoking xSemaphoreGive() to release the mutex.
Will the task that currently holds the mutex be blocked if it calls xSemaphoreTake() again?
Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.