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critical section

Coordinate processes all competing to access shared data, each process has a code segment, called critical section (critical region), in which the shared data is accessed. The critical section is a section of code, or collection of operations, in which only one process may be executing at a given time. The problem in critical section – ensure that when one process is executing in its critical section, no other process is allowed to execute in that critical section. The execution of the critical sections by the processes is mutually exclusive. Critical section should be Short and with Bounded Waiting. The problem with critical section is to design a protocol that the processes use to cooperate