Abstract base class for reading a stream of data in sequential fashion. More...
#include <FileIo.h>
Inheritance diagram for lsst::ap::io::SequentialReader:
Public Member Functions | |
| virtual std::size_t | read (unsigned char *const buf, std::size_t const len)=0 |
 Public Member Functions inherited from lsst::ap::io::SequentialIoBase | |
| SequentialIoBase () | |
| virtual | ~SequentialIoBase ()=0 |
| bool | finished () const |
Returns true if there are no more bytes available for reading. More... | |
| bool | failed () const |
Returns true if a read operation failed. More... | |
| State | getState () const |
| Returns the state of the SequentialReader. More... | |
Additional Inherited Members | |
| Public Types inherited from lsst::ap::io::SequentialIoBase | |
| enum | State { IN_PROGRESS = 0, FINISHED, FAILED } |
| Protected Attributes inherited from lsst::ap::io::SequentialIoBase | |
| State | _state |
Detailed Description
Abstract base class for reading a stream of data in sequential fashion.
Member Function Documentation
|
pure virtual |
Reads up to len bytes from an underlying storage device into buf and returns the number of bytes actually read.
Implemented in lsst::ap::io::CompressedFileReader, and lsst::ap::io::SequentialFileReader.
The documentation for this class was generated from the following file:
- /home/lsstsw/stack/Linux64/ap/10.0+224/include/lsst/ap/io/FileIo.h
