Alternatively a mutex could be used in place of the binary semaphore.
2.
Such Semaphores are called binary semaphore and are very similar to Mutex.
3.
A binary semaphore is therefore equivalent to a mutex.
4.
The simplest type of lock is a binary semaphore.
5.
The binary semaphore useQueue ensures that the integrity of the state of the queue itself is not compromised, for example by two producers attempting to add items to an empty queue simultaneously, thereby corrupting its internal state.
6.
But this simple approach fails when there are multiple levels of waiting : task " A " waits for a binary semaphore locked by task " B ", which waits for a binary semaphore locked by task " C ".
7.
But this simple approach fails when there are multiple levels of waiting : task " A " waits for a binary semaphore locked by task " B ", which waits for a binary semaphore locked by task " C ".
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