windhoek_driver Struct Reference
Class providing access to raw disks using the windhoek block server. More...
#include <windhoek_driver.hpp>
Public Member Functions | |
| windhoek_driver (const string &disk_name, const state_flags flags=0) | |
| virtual l4_sector_t | sectors (void) const |
| Returns the number of disk sectors the underlying medium (e.g a file) provides. | |
| virtual int | read_sectors (uint8_t *buffer, l4_sector_t sector, l4_sector_t number) |
| Reads (from disk) the specified number of sectors starting at the specified sector (inclusive) into the specified data buffer (which must be big enough). | |
| virtual int | write_sectors (uint8_t *buffer, l4_sector_t sector, l4_sector_t number) |
| Writes (to disk) the specified number of sectors starting at the specified sector (inclusive) from the specified data buffer (which must be big enough). | |
Protected Member Functions | |
| virtual int | open_device (void) |
| virtual int | close_device (void) |
| int | transfer_sectors (uint8_t read_write, l4_sector_t sector, l4_sector_t number) |
| int | read_write_sectors (uint8_t read_write, uint8_t *buffer, l4_sector_t sector, l4_sector_t number) |
Static Protected Member Functions | |
| static l4_threadid_t | get_windhoek_id (void) |
Protected Attributes | |
| const string | disk_name |
| Windhoek block device name. | |
| l4_threadid_t | server_id |
| Windhoek server ID to send requests to. | |
| int | handle |
| Connection handle returned by windhoek. | |
| windhoek_device * | device |
| Pointer to windhoek_device struct inside the control dataspace. Do not free. | |
| l4_sector_t | size |
| Disk/partition size in sectors as reported by windhoek. | |
| dataspace | control |
| Windhoek connection associated dataspaces. | |
| dataspace | data |
| l4_sector_t | data_size |
| Number of sectors the data dataspace can store. | |
Detailed Description
Class providing access to raw disks using the windhoek block server.TODO: interleaved requests. handle more than 1 transaction at a time. TODO: resize dataspaces, instead of copying in a loop.
FIXME: resize dataspaces? does the server still work? FIXME: what is windhoek_device.start_sector used for? FIXME: open partitions? how do i get the partition size? FIXME: is windhoek_bio.uid client or client connection (aka. open call) unique? FIXME: is windhoek_bio.start_sector relative to partition or disk (see windhoek_device.start_sector) in case of a partition?
Member Function Documentation
| virtual int windhoek_driver::read_sectors | ( | uint8_t * | buffer, | |
| l4_sector_t | sector, | |||
| l4_sector_t | number | |||
| ) | [inline, virtual] |
Reads (from disk) the specified number of sectors starting at the specified sector (inclusive) into the specified data buffer (which must be big enough).
Returns 0 on success. Negative error codes otherwise.
Implements block_driver.
| virtual int windhoek_driver::write_sectors | ( | uint8_t * | buffer, | |
| l4_sector_t | sector, | |||
| l4_sector_t | number | |||
| ) | [inline, virtual] |
Writes (to disk) the specified number of sectors starting at the specified sector (inclusive) from the specified data buffer (which must be big enough).
Returns 0 on success. Negative error codes otherwise.
Implements block_driver.
The documentation for this struct was generated from the following files:
- windhoek_driver.hpp
- windhoek_driver.cpp