HP Integrity NonStop J-Series - Manual (Page 87)

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©Copyright 1996 Rogue Wave Software
Chapter 8: Using Class
RWFileManager
Construction ❍
Member Functions ❍
Class RWFileManager allocates, deallocates, and coalesces free space in a disk file. This is
done internally by maintaining on disk a linked-list of free space blocks.
Two typedefs are used:
typedef long RWoffset;
typedef unsigned long RWspace;
The type RWoffset is used for the offset within the file to the start of a storage space; RWspace
is the amount of storage space required. The actual typedef may vary depending on the system
you are using.
Class RWFile is a public base class of class RWFileManager ; therefore, the public member
functions of class RWFile are available to class RWFileManager.