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| n | Is a general
method used for interprocess |
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| communication
(IPC) |
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| u | for processes
inside the same computer |
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| u | for processes in
a distributed system |
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| n | Yet another
mean to provide process |
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| synchronization
and mutual exclusion |
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| n | We have at
least two primitives: |
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| u | send(destination,
message) |
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| u | received(source,
message) |
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| n | In both
cases, the process may or may not |
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| be blocked |
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