No, a read write lock is a lock designed so that multiple readers can hold the lock, but only a single writer can hold the lock. That way readers know no write is taking place(as many reads as you like can take place), and writers know they have exclusive access.
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No, a read write lock is a lock designed so that multiple readers can hold the lock, but only a single writer can hold the lock. That way readers know no write is taking place(as many reads as you like can take place), and writers know they have exclusive access.
Yes, but keep in mind that while the write lock is in place, reads are blocked, not just writes.