RTEMS 4.9.4 On-Line Library

Regular File Handler Table Functions

RTEMS Filesystem Design Guide

6.4.2: Regular File Handler Table Functions

memfile_open() for Regular Files

memfile_close() for Regular Files

memfile_read() for Regular Files

memfile_write() for Regular Files

memfile_ioctl() for Regular Files

memfile_lseek() for Regular Files

IMFS_stat() for Regular Files

IMFS_fchmod() for Regular Files

memfile_ftruncate() for Regular Files

No pathconf() for Regular Files

No fsync() for Regular Files

IMFS_fdatasync() for Regular Files

Handler table functions are defined in a rtems_filesystem_file_handlers_r structure. It defines functions that are specific to a node type in a given filesystem. One table exists for each of the filesystem's node types. The structure definition appears below. It is followed by general developmental information on each of the functions associated with regular files contained in this function management structure.

rtems_filesystem_file_handlers_r IMFS_memfile_handlers = {
  memfile_open,
  memfile_close,
  memfile_read,
  memfile_write,
  memfile_ioctl,
  memfile_lseek,
  IMFS_stat,
  IMFS_fchmod,
  memfile_ftruncate,
  NULL,                /* fpathconf */
  NULL,                /* fsync */
  IMFS_fdatasync,
  IMFS_fcntl
};

RTEMS Filesystem Design Guide