What happens when a semaphore is issued or signaled in RTOS?

Question

Let there be 6 tasks, out of 6, 4 (task) are waiting for Semaphore. When a semaphore is signaled, what decision is made by RTOS

• what tasks to choose from the waiting list (for semaphore)
• if one task is selected from the waiting list, what will happen to the remaining task, when will they be completed.
  
• when a task with a higher priority is running.
  

Is the solution the same for all RTOS ?

Answer 1

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