RTEMS  5.0.0
Data Fields
_rtems_rfs_file_system Struct Reference

#include <rtems-rfs-file-system.h>

Data Fields

uint32_t flags
 
size_t blocks
 
size_t block_size
 
int device
 
size_t size
 
uint32_t inodes
 
uint32_t bad_blocks
 
uint32_t max_name_length
 
rtems_rfs_groupgroups
 
int group_count
 
size_t group_blocks
 
size_t group_inodes
 
size_t inodes_per_block
 
size_t blocks_per_block
 
size_t block_map_singly_blocks
 
size_t block_map_doubly_blocks
 
uint32_t max_held_buffers
 
rtems_chain_control buffers
 
uint32_t buffers_count
 
rtems_chain_control release
 
uint32_t release_count
 
rtems_chain_control release_modified
 
uint32_t release_modified_count
 
rtems_chain_control file_shares
 
void * user
 

Detailed Description

RFS File System data.

Field Documentation

◆ bad_blocks

uint32_t _rtems_rfs_file_system::bad_blocks

Bad block blocks. This is a table of blocks that have been found to be bad.

◆ block_map_doubly_blocks

size_t _rtems_rfs_file_system::block_map_doubly_blocks

Block map double indirect count. This is the block number per block squared and multiplied by the slots in the inode. It is the maximum number of blocks a map (file/directory) can have.

◆ block_map_singly_blocks

size_t _rtems_rfs_file_system::block_map_singly_blocks

Block map single indirect count. This is the block number per block multiplied but the slots in the inode.

◆ block_size

size_t _rtems_rfs_file_system::block_size

The size of a block. This must be a multiple of the disk's media block size.

◆ blocks

size_t _rtems_rfs_file_system::blocks

The number of blocks in the disk. The size of the disk is the number of blocks by the block size. This should be within a block size of the size returned by the media driver.

◆ blocks_per_block

size_t _rtems_rfs_file_system::blocks_per_block

Number of block numbers in a block.

◆ buffers

rtems_chain_control _rtems_rfs_file_system::buffers

List of buffers attached to buffer handles. Allows sharing.

◆ buffers_count

uint32_t _rtems_rfs_file_system::buffers_count

Number of buffers held on the buffers list.

◆ device

int _rtems_rfs_file_system::device

The file descriptor for device I/O.

◆ file_shares

rtems_chain_control _rtems_rfs_file_system::file_shares

List of open shared file node data. The shared node data such as the inode and block map allows a single file to be open more than once.

◆ flags

uint32_t _rtems_rfs_file_system::flags

Flags to control the file system. Some can be controlled via the ioctl.

◆ group_blocks

size_t _rtems_rfs_file_system::group_blocks

Number of blocks in a group.

◆ group_count

int _rtems_rfs_file_system::group_count

Number of groups.

◆ group_inodes

size_t _rtems_rfs_file_system::group_inodes

Number of inodes in a group.

◆ groups

rtems_rfs_group* _rtems_rfs_file_system::groups

A disk is broken down into a series of groups.

◆ inodes

uint32_t _rtems_rfs_file_system::inodes

Inode count.

◆ inodes_per_block

size_t _rtems_rfs_file_system::inodes_per_block

Number of inodes in each block.

◆ max_held_buffers

uint32_t _rtems_rfs_file_system::max_held_buffers

Number of buffers held before releasing back to the cache.

◆ max_name_length

uint32_t _rtems_rfs_file_system::max_name_length

Maximum length of names supported by this file system.

◆ release

rtems_chain_control _rtems_rfs_file_system::release

List of buffers that need to be released when the processing of a file system request has completed.

◆ release_count

uint32_t _rtems_rfs_file_system::release_count

Number of buffers held on the release list.

◆ release_modified

rtems_chain_control _rtems_rfs_file_system::release_modified

List of buffers that need to be released modified when the processing of a file system request has completed.

◆ release_modified_count

uint32_t _rtems_rfs_file_system::release_modified_count

Number of buffers held on the release modified list.

◆ size

size_t _rtems_rfs_file_system::size

The number of blocks in the file system.

◆ user

void* _rtems_rfs_file_system::user

Pointer to user data supplied when opening.


The documentation for this struct was generated from the following file: