Need help with OS

1. Suppose we use a single lock variable to solve the mutual exclusion problem as in the code below. Does this work correctly? If yes, explain how. If no, describe how the program can execute resulting in a race condition boolean lock - false; // in threadi while (true) if (lock) lock true; critical Regioni0; lock = false; // in thread2 while (true)t if (!lock) { lock = true; criticalRegion(2); lock false; 1. Suppose we use a single lock variable to solve the mutual exclusion problem as in the code below. Does this work correctly? If yes, explain how. If no, describe how the program can execute resulting in a race condition boolean lock - false; // in threadi while (true) if (lock) lock true; critical Regioni0; lock = false; // in thread2 while (true)t if (!lock) { lock = true; criticalRegion(2); lock false