Hi all:
I have a FreeRTOS system compiled and working, but now arised the need to know (from a control task)
if a mutex is free or taken without taking it, this is I need to “peek” the mutex, as when peeking a queue.
Is this possible?
Thanks in advance
Ignacio
How to peek a mutex?
How to peek a mutex?
One way to do this is a take with a 0 tick timeout, and if successful immediately give it back.
How to peek a mutex?
Semaphores and queues use the same data structures. I have not actually tried, but think you could probably pass a semaphore handle into xQueuePeek() successfully. Give it a test to see.
Regards.
How to peek a mutex?
Yeiiii!! it worked!
You must provide that… if(xQueuePeek((xQueueHandle)THE_mutex,(void *)NULL,(portTickType)NULL) != pdTRUE)
{ // the mutex is taken }else{
// the mutex is free } Thank you
Ignacio
You must provide that… if(xQueuePeek((xQueueHandle)THE_mutex,(void *)NULL,(portTickType)NULL) != pdTRUE)
{ // the mutex is taken }else{
// the mutex is free } Thank you
Ignacio