The Token Ring: Fair Resource Access Through Token Passing
The Token Ring Problem The Token Ring is a classic distributed mutual exclusion algorithm where nodes are arranged in a logical ring, and a single token circulates. Only the node holding the token can access the shared resource. It’s simple, fair, and starvation-free. The Scenario Nodes arranged in a ring: N nodes form a logical ring A single token passes around the ring Only token holder can enter critical section After using resource, pass token to next node Properties: Fair (FIFO order), no starvation, deadlock-free The challenge: ...