naming_flat - Today CSCI 5105 Foundations of Modern...

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1 CSCI 5105 Foundations of Modern Operating Systems Instructor: Abhishek Chandra 2 Today Naming Basics Flat Naming 3 Naming Names used to refer to entities: Files, hosts, processes, devices Questions: How are names specified? Where are names stored? How do we locate an entity given its name? 4 Addresses Name of an entity’s access point Corresponds to the location of the entity E.g.: IP address, port no., disk block, etc. Can we use an address as the name of an entity? E.g.: IP address for a machine, http server’s TCP - tuple, etc.
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2 5 Location-Independence What happens to the name if: The entity is moved? The entity has multiple addresses? Location-independent name: Does not depend on the address/location of the entity 6 Identifiers and Names Identifiers: Names used to uniquely identify an entity E.g.: inode, unique key Often specified in machine-readable form Context-dependent: IP address can be
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naming_flat - Today CSCI 5105 Foundations of Modern...

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