Reference no: EM133218153
Draw a state diagram of Maekawa's voting algorithm on the slide "Maekawa's algorithm" in the "Distributed mutual exclusion" slide set. Note that the state diagram is from the point of view of any one of the nodes, called "this" node below. The state diagram cannot show the states of other nodes.
i) Start with the basic case where "this" node wants the lock, gets it, and then releases it, and no other node wants the lock at the same time. In this case, "this" node goes through all the states in this order:
Released and not voted
Wanted and not voted
Wanted and voted
Held and voted
Released and voted
(Back to) Released and not voted
Events are:
acquire for when "this" node wants the lock
release for when "this" node gives up the lock.
request_received, reply_received, and release_received when a message from any node arrives at "this" node.
The state diagram is similar the one of Ricart and Agrawala's state machine (in the Distributed Mutual Exclusion PowerPoint deck) but has more states.
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Distributed mutual exclusion slide set
: Draw a state diagram of Maekawa's voting algorithm on the slide "Maekawa's algorithm" in the "Distributed mutual exclusion" slide set.
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