| DCMTK Version 3.6.9
    OFFIS DICOM Toolkit | 
producer class that reads data from a plain file. More...
 Inheritance diagram for DcmFileProducer:
 Inheritance diagram for DcmFileProducer:| Public Member Functions | |
| DcmFileProducer (const OFFilename &filename, offile_off_t offset=0) | |
| constructor | |
| virtual | ~DcmFileProducer () | 
| destructor | |
| virtual OFBool | good () const | 
| returns the status of the producer. | |
| virtual OFCondition | status () const | 
| returns the status of the producer as an OFCondition object. | |
| virtual OFBool | eos () | 
| returns true if the producer is at the end of stream. | |
| virtual offile_off_t | avail () | 
| returns the minimum number of bytes that can be read with the next call to read(). | |
| virtual offile_off_t | read (void *buf, offile_off_t buflen) | 
| reads as many bytes as possible into the given block. | |
| virtual offile_off_t | skip (offile_off_t skiplen) | 
| skips over the given number of bytes (or less) | |
| virtual void | putback (offile_off_t num) | 
| resets the stream to the position by the given number of bytes. | |
|  Public Member Functions inherited from DcmProducer | |
| virtual | ~DcmProducer () | 
| destructor | |
| Private Member Functions | |
| DcmFileProducer (const DcmFileProducer &) | |
| private unimplemented copy constructor | |
| DcmFileProducer & | operator= (const DcmFileProducer &) | 
| private unimplemented copy assignment operator | |
| Private Attributes | |
| OFFile | file_ | 
| the file we're actually reading from | |
| OFCondition | status_ | 
| status | |
| offile_off_t | size_ | 
| number of bytes in file | |
producer class that reads data from a plain file.
| DcmFileProducer::DcmFileProducer | ( | const OFFilename & | filename, | 
| offile_off_t | offset = 0 ) | 
constructor
| filename | name of file to be opened (may contain wide chars if support enabled) | 
| offset | byte offset to skip from the start of file | 
Referenced by DcmFileProducer(), and operator=().
| 
 | virtual | 
returns the minimum number of bytes that can be read with the next call to read().
The DcmObject read methods rely on avail to return a value > 0 if there is no I/O suspension since certain data such as tag and length are only read "en bloc", i.e. all or nothing.
Implements DcmProducer.
| 
 | virtual | 
returns true if the producer is at the end of stream.
Implements DcmProducer.
| 
 | virtual | 
returns the status of the producer.
Unless the status is good, the producer will not permit any operation.
Implements DcmProducer.
| 
 | virtual | 
resets the stream to the position by the given number of bytes.
| num | number of bytes to putback. If the putback operation fails, the producer status becomes bad. | 
Implements DcmProducer.
| 
 | virtual | 
reads as many bytes as possible into the given block.
| buf | pointer to memory block, must not be NULL | 
| buflen | length of memory block | 
Implements DcmProducer.
| 
 | virtual | 
skips over the given number of bytes (or less)
| skiplen | number of bytes to skip | 
Implements DcmProducer.
| 
 | virtual | 
returns the status of the producer as an OFCondition object.
Unless the status is good, the producer will not permit any operation.
Implements DcmProducer.