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The concepts of sharing memory in computer science, including how pages can be shared among processes and the safety of sharing read-only data. It also discusses what happens when a virtual address has no physical address, known as a page fault, and how the operating system handles it. Information on protection attributes in win32 and the steps to handle a page fault.
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-^ NOACCESS: attempts to read, write or execute will cause an accessviolation–^ READONLY: attempts to write or execute memory in this region causean access violation–^ READWRITE: attempts to execute memory in this region cause anaccess violation–^ EXECUTE: Attempts to read or write memory in this region cause anaccess violation–^ EXECUTE_READ: Attempts to write to memory in this region cause anaccess violation–^ EXECUTE_READ_WRITE: Do anything to this page–^ WRITE_COPY: Attempts to write will cause the system to give aprocess its own copy of the page. Attempts to execute cause accessviolation–^ EXECUTE_WRITE_COPY: Attempts to write will cause the system togive a process its own copy of a page. Can’t cause an access violation
