9.1. Processes sharing an address space
A file management system might be provided as a subsystem within a closed operating system for a centralized time-sharing system or a personal workstation. Alternatively, it might be provided as a service above a microkernel for local clients or it might run in a dedicated file server machine across a network from its clients.
Examples of possible clients of a file service are: an application process requiring to read or write a data file; a command interpreter, acting in response to a user's command to run a program, initiating its loading into memory from the file store; or a compiler creating an object code file.
We assume that the module which is to implement the service has an interface which offers ...
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