libio_.h File Reference

LibIO Internal Interface. More...

#include <sys/uio.h>
#include <errno.h>
#include <limits.h>
#include <pthread.h>
#include <rtems.h>
#include <rtems/libio.h>
#include <rtems/seterr.h>
#include <rtems/score/assert.h>
#include <rtems/score/timespec.h>
#include <rtems/userenv.h>

Go to the source code of this file.

Data Structures
struct	rtems_filesystem_eval_path_generic_config

Macros
#define	RTEMS_FILESYSTEM_SYMLOOP_MAX   32
#define	F_DUP2FD   20
#define	rtems_libio_iop_to_descriptor(_iop)    ((_iop) - &rtems_libio_iops[0])
#define	rtems_libio_check_is_open(_iop)
#define	LIBIO_GET_IOP(_fd, _iop)
	Macro to get the iop for the specified file descriptor.
#define	LIBIO_GET_IOP_WITH_ACCESS(_fd, _iop, _access_flags, _access_error)
	Macro to get the iop for the specified file descriptor with access flags and error.
#define	rtems_libio_check_buffer(_buffer)
#define	rtems_libio_check_count(_count)
#define	rtems_filesystem_mt_entry_declare_lock_context(ctx)    rtems_interrupt_lock_context ctx
#define	rtems_filesystem_mt_entry_lock(ctx)    rtems_interrupt_lock_acquire( &rtems_filesystem_mt_entry_lock_control, &ctx )
#define	rtems_filesystem_mt_entry_unlock(ctx)    rtems_interrupt_lock_release( &rtems_filesystem_mt_entry_lock_control, &ctx )

Typedefs
typedef bool(*	rtems_filesystem_eval_path_is_directory) (rtems_filesystem_eval_path_context_t *ctx, void *arg)
	Tests if the current location is a directory.
typedef rtems_filesystem_eval_path_generic_status(*	rtems_filesystem_eval_path_eval_token) (rtems_filesystem_eval_path_context_t *ctx, void *arg, const char *token, size_t tokenlen)
	Evaluates a token.
typedef ssize_t(*	rtems_libio_iovec_adapter) (rtems_libio_t *iop, const struct iovec *iov, int iovcnt, ssize_t total)

Enumerations
enum	rtems_filesystem_eval_path_generic_status { RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_CONTINUE , RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_DONE , RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_NO_ENTRY }

Functions
void	rtems_filesystem_location_clone (rtems_filesystem_location_info_t *clone, const rtems_filesystem_location_info_t *master)
	Clones a node.
void	rtems_filesystem_location_free (rtems_filesystem_location_info_t *loc)
	Releases all resources of a location.
void	rtems_libio_lock (void)
void	rtems_libio_unlock (void)
bool	rtems_filesystem_utime_tv_nsec_valid (struct timespec time)
	Checks the tv_nsec member of a timespec struct.
int	rtems_filesystem_utime_check_permissions (const rtems_filesystem_location_info_t *currentloc, const struct timespec times[2])
	Checks for errors and if the process has write permissions to the file.
int	rtems_filesystem_utime_update (const struct timespec times[2], struct timespec new_times[2])
	Checks times and fills new_times with the time to be written.
rtems_libio_t *	rtems_libio_allocate (void)
unsigned int	rtems_libio_fcntl_flags (int fcntl_flags)
int	rtems_libio_to_fcntl_flags (unsigned int flags)
void	rtems_libio_free (rtems_libio_t *iop)
rtems_filesystem_location_info_t *	rtems_filesystem_eval_path_start (rtems_filesystem_eval_path_context_t *ctx, const char *path, int eval_flags)
rtems_filesystem_location_info_t *	rtems_filesystem_eval_path_start_with_parent (rtems_filesystem_eval_path_context_t *ctx, const char *path, int eval_flags, rtems_filesystem_location_info_t *parentloc, int parent_eval_flags)
rtems_filesystem_location_info_t *	rtems_filesystem_eval_path_start_with_root_and_current (rtems_filesystem_eval_path_context_t *ctx, const char *path, size_t pathlen, int eval_flags, rtems_filesystem_global_location_t *const *global_root_ptr, rtems_filesystem_global_location_t *const *global_current_ptr)
void	rtems_filesystem_eval_path_continue (rtems_filesystem_eval_path_context_t *ctx)
void	rtems_filesystem_eval_path_cleanup (rtems_filesystem_eval_path_context_t *ctx)
void	rtems_filesystem_eval_path_recursive (rtems_filesystem_eval_path_context_t *ctx, const char *path, size_t pathlen)
void	rtems_filesystem_eval_path_cleanup_with_parent (rtems_filesystem_eval_path_context_t *ctx, rtems_filesystem_location_info_t *parentloc)
void	rtems_filesystem_eval_path_restart (rtems_filesystem_eval_path_context_t *ctx, rtems_filesystem_global_location_t **newstartloc_ptr)
	Requests a path evaluation restart.
void	rtems_filesystem_eval_path_generic (rtems_filesystem_eval_path_context_t *ctx, void *arg, const rtems_filesystem_eval_path_generic_config *config)
void	rtems_filesystem_initialize (void)
	Base File System Initialization.
rtems_filesystem_location_info_t *	rtems_filesystem_location_copy (rtems_filesystem_location_info_t *dst, const rtems_filesystem_location_info_t *src)
	Copies a location.
rtems_filesystem_global_location_t *	rtems_filesystem_location_transform_to_global (rtems_filesystem_location_info_t *loc)
void	rtems_filesystem_global_location_assign (rtems_filesystem_global_location_t **lhs_global_loc_ptr, rtems_filesystem_global_location_t *rhs_global_loc)
	Assigns a global file system location.
rtems_filesystem_global_location_t *	rtems_filesystem_global_location_obtain (rtems_filesystem_global_location_t *const *global_loc_ptr)
	Obtains a global file system location.
void	rtems_filesystem_global_location_release (rtems_filesystem_global_location_t *global_loc, bool deferred)
	Releases a global file system location.
void	rtems_filesystem_location_detach (rtems_filesystem_location_info_t *detach)
void	rtems_filesystem_location_copy_and_detach (rtems_filesystem_location_info_t *copy, rtems_filesystem_location_info_t *detach)
int	rtems_filesystem_mknod (const rtems_filesystem_location_info_t *parentloc, const char *name, size_t namelen, mode_t mode, dev_t dev)
int	rtems_filesystem_chdir (rtems_filesystem_location_info_t *loc)
int	rtems_filesystem_chmod (const rtems_filesystem_location_info_t *loc, mode_t mode)
int	rtems_filesystem_chown (const rtems_filesystem_location_info_t *loc, uid_t owner, gid_t group)
void	rtems_filesystem_location_remove_from_mt_entry (rtems_filesystem_location_info_t *loc)
void	rtems_filesystem_do_unmount (rtems_filesystem_mount_table_entry_t *mt_entry)
void	rtems_filesystem_eval_path_eat_delimiter (rtems_filesystem_eval_path_context_t *ctx)
void	rtems_filesystem_eval_path_next_token (rtems_filesystem_eval_path_context_t *ctx)
void	rtems_filesystem_eval_path_error (rtems_filesystem_eval_path_context_t *ctx, int eno)
int	rtems_filesystem_location_exists_in_same_instance_as (const rtems_filesystem_location_info_t *a, const rtems_filesystem_location_info_t *b)
	Checks that the locations exist in the same file system instance.
bool	rtems_filesystem_check_access (int flags, mode_t object_mode, uid_t object_uid, gid_t object_gid)
	Checks if access to an object is allowed for the current user.
bool	rtems_filesystem_eval_path_check_access (rtems_filesystem_eval_path_context_t *ctx, int eval_flags, mode_t node_mode, uid_t node_uid, gid_t node_gid)

Variables
const uint32_t	rtems_libio_number_iops
rtems_libio_t	rtems_libio_iops []
void *	rtems_libio_iop_free_head
void **	rtems_libio_iop_free_tail
const rtems_filesystem_file_handlers_r	rtems_filesystem_null_handlers
rtems_filesystem_mount_table_entry_t	rtems_filesystem_null_mt_entry
rtems_filesystem_global_location_t	rtems_filesystem_global_location_null
	The global null location.
rtems_interrupt_lock	rtems_filesystem_mt_entry_lock_control

Detailed Description

LibIO Internal Interface.

This file is the libio internal interface.