Chaining the higherPriorityTaskWoken variable

I have a situation where I’m responding to a number of GPIO interrupts with one ISR and I just want to clarify that I’m using the correct method of dealing with the situation whereby a higher priority task will be woken as a result of this interrupt. Looking at the source code for xSemaphoreGiveFromISR() it looks as though it’s okay to chain the use of the variable higherPriorityTaskWoken as shown below as opposed to creating separate variables for each call to xSemaphoreGiveFromISR and then bitwise oring them together to create the final return value which is passed into the portEND_SWITCHING_ISR macro e.g. ISR {
portBASE_TYPE higherPriorityTaskWoken = pdFALSE;      // only set its initial value once if(some event)
xSemaphoreGiveFromISR(semA, &higherPriorityTaskWoken);         // using the variable here if(some other event)
xSemaphoreGiveFromISR(semB, &higherPriorityTaskWoken); // and the same one here again if(some other event)
xSemaphoreGiveFromISR(semC, &higherPriorityTaskWoken); // and here again portEND_SWITCHING_ISR(higherPriorityTaskWoken);
} I would be grateful if somebody could just clarify that the above is correct. Many thanks, Paul.

Chaining the higherPriorityTaskWoken variable

Yes your code is fine. _ Regards._

Chaining the higherPriorityTaskWoken variable

Okay thanks for the clarification, it makes the code a lot cleaner than having separate variables and I’m all for that :) Regards, Paul.