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6.4.15 The QMGR Block »
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6.4.14. The PGMAN Block

This block provides page and buffer management services for Disk Data tables. It includes these files:

  • diskpage.hpp.  Defines the File_formats, Datafile, and Undofile structures.

  • diskpage.cpp.  Initializes sero page headers; includes some output reoutines for reporting and debugging.

  • pgman.hpp.  Defines the Pgman class implementing a number of page and buffer services, including:

    • Page entries and requests

    • Page replacement

    • Page lists

    • Page cleanup

    • Other page processing

  • pgman.cpp.  Implements Pgman methods for initialization and various page management tasks.