JCL Help:TJclSectoredStream
JCL Help: TJclSectoredStream Class
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TJclStream
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TJclStreamDecorator
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TJclBufferedStream
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TJclSectoredStream
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TJclCRC16Stream
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TJclCRC32Stream
Summary
TJclSectoredStream organizes data and forces read and write operations to storage stream to have a fixed size.
Pascal
public TJclSectoredStream = class(TJclBufferedStream);
Description
TJclSectoredStream organizes data and forces read and write operations to storage stream to have a fixed size. Every smaller accesses are stored into a buffer which is flushed when full.
Fixed size blocks are called "sector", each sector can contain a predefined number of bytes reserved to store a checksum or any other data (TJclCRC16Stream and TJclCRC32Stream classes use this feature). In order to set these bytes, this class has to be inherited and virtual methods TJclSectoredStream.BeforeBlockRead and TJclSectoredStream.AfterBlockWrite have to be overridden.
See Also
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Unit
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Florent Ouchet
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