RTEMS
5.0.0
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Header File for the In-Memory File System. More...
#include <sys/time.h>
#include <limits.h>
#include <rtems/libio_.h>
#include <rtems/pipe.h>
#include <rtems/score/timecounter.h>
Go to the source code of this file.
Data Structures | |
struct | IMFS_node_control |
IMFS node control. More... | |
struct | IMFS_mknod_control |
struct | IMFS_jnode_tt |
struct | IMFS_directory_t |
struct | IMFS_device_t |
struct | IMFS_link_t |
struct | IMFS_sym_link_t |
struct | IMFS_filebase_t |
struct | IMFS_memfile_t |
struct | IMFS_linearfile_t |
union | IMFS_file_t |
struct | IMFS_fifo_t |
struct | IMFS_generic_t |
struct | IMFS_mknod_controls |
struct | IMFS_fs_info_t |
struct | IMFS_mount_data |
Macros | |
#define | IMFS_MEMFILE_DEFAULT_BYTES_PER_BLOCK 128 |
#define | IMFS_MEMFILE_BYTES_PER_BLOCK imfs_memfile_bytes_per_block |
#define | IMFS_MEMFILE_BLOCK_SLOTS (IMFS_MEMFILE_BYTES_PER_BLOCK / sizeof(void *)) |
#define | FIRST_INDIRECT (0) |
#define | LAST_INDIRECT (IMFS_MEMFILE_BLOCK_SLOTS - 1) |
#define | FIRST_DOUBLY_INDIRECT (LAST_INDIRECT + 1) |
#define | LAST_DOUBLY_INDIRECT |
#define | FIRST_TRIPLY_INDIRECT (LAST_DOUBLY_INDIRECT + 1) |
#define | LAST_TRIPLY_INDIRECT |
#define | IMFS_MEMFILE_MAXIMUM_SIZE (LAST_TRIPLY_INDIRECT * IMFS_MEMFILE_BYTES_PER_BLOCK) |
#define | IMFS_NAME_MAX _POSIX_NAME_MAX |
#define | IMFS_NODE_FLAG_NAME_ALLOCATED 0x1 |
#define | IMFS_GENERIC_INITIALIZER(handlers, init, destroy) |
Initializer for a generic node control. More... | |
#define | IMFS_assert(_x) |
#define | IMFS_STAT_FMT_HARD_LINK 0 |
Typedefs | |
typedef struct IMFS_jnode_tt | IMFS_jnode_t |
typedef uint8_t * | block_p |
typedef block_p * | block_ptr |
typedef IMFS_jnode_t *(* | IMFS_node_control_initialize) (IMFS_jnode_t *node, void *arg) |
Initializes an IMFS node. More... | |
typedef IMFS_jnode_t *(* | IMFS_node_control_remove) (IMFS_jnode_t *node) |
Prepares the removal of an IMFS node from its parent directory. More... | |
typedef void(* | IMFS_node_control_destroy) (IMFS_jnode_t *node) |
Destroys an IMFS node. More... | |
Functions | |
IMFS_jnode_t * | IMFS_node_initialize_default (IMFS_jnode_t *node, void *arg) |
Returns the node and does nothing else. More... | |
IMFS_jnode_t * | IMFS_node_initialize_directory (IMFS_jnode_t *node, void *arg) |
IMFS_jnode_t * | IMFS_node_initialize_generic (IMFS_jnode_t *node, void *arg) |
Returns the node and sets the generic node context. More... | |
IMFS_jnode_t * | IMFS_node_remove_default (IMFS_jnode_t *node) |
Returns the node and does nothing else. More... | |
IMFS_jnode_t * | IMFS_node_remove_directory (IMFS_jnode_t *node) |
void | IMFS_node_destroy_default (IMFS_jnode_t *node) |
Frees the node. More... | |
int | IMFS_initialize (rtems_filesystem_mount_table_entry_t *mt_entry, const void *data) |
int | IMFS_initialize_support (rtems_filesystem_mount_table_entry_t *mt_entry, const void *data) |
void | IMFS_fsunmount (rtems_filesystem_mount_table_entry_t *mt_entry) |
Unmount this instance of IMFS. | |
int | rtems_tarfs_load (const char *mountpoint, uint8_t *tar_image, size_t tar_size) |
RTEMS load tarfs. More... | |
void | IMFS_node_destroy (IMFS_jnode_t *node) |
Destroy an IMFS node. | |
int | IMFS_node_clone (rtems_filesystem_location_info_t *loc) |
Clone an IMFS node. | |
void | IMFS_node_free (const rtems_filesystem_location_info_t *loc) |
Free an IMFS node. | |
int | IMFS_stat (const rtems_filesystem_location_info_t *loc, struct stat *buf) |
Perform a status processing for the IMFS. More... | |
int | IMFS_stat_file (const rtems_filesystem_location_info_t *loc, struct stat *buf) |
void | IMFS_eval_path (rtems_filesystem_eval_path_context_t *ctx) |
IMFS evaluation node support. | |
int | IMFS_link (const rtems_filesystem_location_info_t *parentloc, const rtems_filesystem_location_info_t *targetloc, const char *name, size_t namelen) |
Create a new IMFS link node. More... | |
int | IMFS_chown (const rtems_filesystem_location_info_t *loc, uid_t owner, gid_t group) |
Change the owner of IMFS. More... | |
int | IMFS_mknod (const rtems_filesystem_location_info_t *parentloc, const char *name, size_t namelen, mode_t mode, dev_t dev) |
Create an IMFS node. More... | |
IMFS_jnode_t * | IMFS_initialize_node (IMFS_jnode_t *node, const IMFS_node_control *node_control, const char *name, size_t namelen, mode_t mode, void *arg) |
IMFS_jnode_t * | IMFS_create_node (const rtems_filesystem_location_info_t *parentloc, const IMFS_node_control *node_control, size_t node_size, const char *name, size_t namelen, mode_t mode, void *arg) |
Create an IMFS node. More... | |
int | IMFS_make_generic_node (const char *path, mode_t mode, const IMFS_node_control *node_control, void *context) |
Makes a generic IMFS node. More... | |
int | IMFS_mount (rtems_filesystem_mount_table_entry_t *mt_entry) |
Mount an IMFS. | |
int | IMFS_unmount (rtems_filesystem_mount_table_entry_t *mt_entry) |
Unmount an IMFS. | |
int | IMFS_utime (const rtems_filesystem_location_info_t *loc, time_t actime, time_t modtime) |
Set IMFS file access and modification times. More... | |
int | IMFS_fchmod (const rtems_filesystem_location_info_t *loc, mode_t mode) |
Change the IMFS file mode. | |
int | IMFS_symlink (const rtems_filesystem_location_info_t *parentloc, const char *name, size_t namelen, const char *target) |
Create a new IMFS symbolic link node. More... | |
ssize_t | IMFS_readlink (const rtems_filesystem_location_info_t *loc, char *buf, size_t bufsize) |
Put IMFS symbolic link into buffer. More... | |
int | IMFS_rename (const rtems_filesystem_location_info_t *oldparentloc, const rtems_filesystem_location_info_t *oldloc, const rtems_filesystem_location_info_t *newparentloc, const char *name, size_t namelen) |
Rename the IMFS. More... | |
int | IMFS_rmnod (const rtems_filesystem_location_info_t *parentloc, const rtems_filesystem_location_info_t *loc) |
IMFS node removal handler. More... | |
IMFS Memory File Handlers | |
This section contains the set of handlers used to process operations on IMFS memory file nodes. The memory files are created in memory using malloc'ed memory. Thus any data stored in one of these files is lost at system shutdown unless special arrangements to copy the data to some type of non-volailte storage are made by the application. | |
ssize_t | IMFS_memfile_write (IMFS_memfile_t *memfile, off_t start, const unsigned char *source, unsigned int length) |
IMFS Device Node Handlers | |
This section contains the set of handlers used to map operations on IMFS device nodes onto calls to the RTEMS Classic API IO Manager. | |
int | device_open (rtems_libio_t *iop, const char *pathname, int oflag, mode_t mode) |
int | device_close (rtems_libio_t *iop) |
ssize_t | device_read (rtems_libio_t *iop, void *buffer, size_t count) |
ssize_t | device_write (rtems_libio_t *iop, const void *buffer, size_t count) |
int | device_ioctl (rtems_libio_t *iop, ioctl_command_t command, void *buffer) |
int | device_ftruncate (rtems_libio_t *iop, off_t length) |
Variables | |
int | imfs_rq_memfile_bytes_per_block |
int | imfs_memfile_bytes_per_block |
const IMFS_mknod_control | IMFS_mknod_control_dir_default |
const IMFS_mknod_control | IMFS_mknod_control_dir_minimal |
const IMFS_mknod_control | IMFS_mknod_control_device |
const IMFS_mknod_control | IMFS_mknod_control_memfile |
const IMFS_node_control | IMFS_node_control_linfile |
const IMFS_mknod_control | IMFS_mknod_control_fifo |
const IMFS_mknod_control | IMFS_mknod_control_enosys |
const rtems_filesystem_limits_and_options_t | IMFS_LIMITS_AND_OPTIONS |
Header File for the In-Memory File System.