config Class Reference
[Block management layer]
Access point to disks properties.
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#include <mng.h>
Inherits noncopyable.
Public Member Functions | |
| unsigned | disks_number () const |
| Returns number of disks available to user. | |
| std::pair< unsigned, unsigned > | regular_disk_range () const |
| Returns contiguous range of regular disks w/o flash devices in the array of all disks. | |
| std::pair< unsigned, unsigned > | flash_range () const |
| Returns contiguous range of flash devices in the array of all disks. | |
| const std::string & | disk_path (int disk) const |
| Returns path of disks. | |
| stxxl::int64 | disk_size (int disk) const |
| Returns disk size. | |
| const std::string & | disk_io_impl (int disk) const |
| Returns name of I/O implementation of particular disk. | |
Static Public Member Functions | |
| static config * | get_instance () |
| Returns instance of config. | |
Detailed Description
Access point to disks properties.
- Remarks:
- is a singleton
Member Function Documentation
| unsigned config::disks_number | ( | ) | const [inline] |
Returns number of disks available to user.
- Returns:
- number of disks
Referenced by buf_istream< BlkTp_, BIDIteratorTp_ >::buf_istream(), stream::materialize(), and stream::runs_merger< stream::sorted_runs, Cmp_, AllocStr_ >::runs_merger().
| std::pair<unsigned, unsigned> config::regular_disk_range | ( | ) | const [inline] |
Returns contiguous range of regular disks w/o flash devices in the array of all disks.
- Returns:
- range [begin, end) of regular disk indices
| std::pair<unsigned, unsigned> config::flash_range | ( | ) | const [inline] |
Returns contiguous range of flash devices in the array of all disks.
- Returns:
- range [begin, end) of flash device indices
| const std::string& config::disk_path | ( | int | disk | ) | const [inline] |
Returns path of disks.
- Parameters:
-
disk disk's identifier
- Returns:
- string that contains the disk's path name
| stxxl::int64 config::disk_size | ( | int | disk | ) | const [inline] |
Returns disk size.
- Parameters:
-
disk disk's identifier
- Returns:
- disk size in bytes
| const std::string& config::disk_io_impl | ( | int | disk | ) | const [inline] |
Returns name of I/O implementation of particular disk.
- Parameters:
-
disk disk's identifier
| config * config::get_instance | ( | ) | [static] |
Returns instance of config.
- Returns:
- pointer to the instance of config
Referenced by buf_istream< BlkTp_, BIDIteratorTp_ >::buf_istream(), stream::materialize(), stream::runs_merger< stream::sorted_runs, Cmp_, AllocStr_ >::runs_merger(), and vector< Tp_, PgSz_, PgTp_, BlkSize_, AllocStr_, SzTp_ >::vector().
The documentation for this class was generated from the following files:
- mng.h
- mng.cpp
