Question: The goal is to implement the locking primitive for OS161 in C programming language. The interface for the lock structure is defined in file kern/include/synch.h.

The goal is to implement the locking primitive for OS161 in C programming language. The interface for the lock structure is defined in file kern/include/synch.h. Stubbed code is in kern/threads/synch.c. These should be sleep locks and not spin locks, in the sense that a waiting thread will sleep, rather than spin, until the lock is available.

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