XrdFileCache::IOFileBlock Class Reference
Downloads original file into multiple files, chunked into blocks. Only blocks that are asked for are downloaded. Handles read requests as they come along. More...
#include <XrdFileCacheIOFileBlock.hh>
Inheritance diagram for XrdFileCache::IOFileBlock:
Collaboration diagram for XrdFileCache::IOFileBlock:
Public Member Functions | |
| IOFileBlock (XrdOucCacheIO &io, XrdOucCacheStats &stats, Cache &cache) | |
| Constructor. | |
| ~IOFileBlock () | |
| Destructor. | |
| virtual XrdOucCacheIO * | Detach () |
| virtual int | Read (char *Buffer, long long Offset, int Length) |
| Pass Read request to the corresponding Prefetch object. | |
| virtual bool | ioActive () |
| Virtual method of XrdOucCacheIO. Called to check if destruction needs to be done in a separate task. | |
Private Member Functions | |
| Prefetch * | newBlockPrefetcher (long long off, int blocksize, XrdOucCacheIO *io) |
Private Attributes | |
| long long | m_fileFragmentSize |
| size of file-block | |
| std::map< int, Prefetch * > | m_blocks |
| map of created blocks | |
| XrdSysMutex | m_mutex |
| map mutex | |
Detailed Description
Downloads original file into multiple files, chunked into blocks. Only blocks that are asked for are downloaded. Handles read requests as they come along.
Constructor & Destructor Documentation
| XrdFileCache::IOFileBlock::IOFileBlock | ( | XrdOucCacheIO & | io, | |
| XrdOucCacheStats & | stats, | |||
| Cache & | cache | |||
| ) |
Constructor.
| XrdFileCache::IOFileBlock::~IOFileBlock | ( | ) | [inline] |
Destructor.
Member Function Documentation
| virtual XrdOucCacheIO* XrdFileCache::IOFileBlock::Detach | ( | ) | [virtual] |
Detach from Cache. Note: this will delete the object.
- Returns:
- original source XrdPosixFile
Reimplemented from XrdOucCacheIO.
| virtual bool XrdFileCache::IOFileBlock::ioActive | ( | ) | [virtual] |
Virtual method of XrdOucCacheIO. Called to check if destruction needs to be done in a separate task.
Reimplemented from XrdOucCacheIO.
| Prefetch* XrdFileCache::IOFileBlock::newBlockPrefetcher | ( | long long | off, | |
| int | blocksize, | |||
| XrdOucCacheIO * | io | |||
| ) | [private] |
| virtual int XrdFileCache::IOFileBlock::Read | ( | char * | Buffer, | |
| long long | Offset, | |||
| int | Length | |||
| ) | [virtual] |
Pass Read request to the corresponding Prefetch object.
Implements XrdOucCacheIO.
Member Data Documentation
std::map<int, Prefetch*> XrdFileCache::IOFileBlock::m_blocks [private] |
map of created blocks
long long XrdFileCache::IOFileBlock::m_fileFragmentSize [private] |
size of file-block
map mutex
The documentation for this class was generated from the following file:
