This allows passing a different type than the default AIRWLock for
debugging purposes.
The signature of the class used for RWLOCK should be:
struct RWLock {
// Default constructor.
RWLock(void);
// Block until it's safe to read the data.
// high_priority is a hint that granting this thread the read lock is more important than granting another thread a write lock.
void rdlock(bool high_priority = false);
// Release the obtained read lock.
void rdunlock();
// Block until it's safe to write to the data.
void wrlock();
// Release the obtained write lock.
void wrunlock();
// Convert the obtained write lock into a read lock.
void wr2rdlock();
// Block until it is possible to convert the obtained read lock into a write lock.
void rd2wrlock();
// Return true when a read or write is obtained and subsequent calls to release the lock are expected.
bool isLocked() const;
};
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