[Lost] cdi.fs

[Janosch Gräf <janosch.graef@xxxxxxx>]

Hi,

Erstmal ein Vorentwurf von cdi.fs
Wäre ganz nett, wenn ihr (besonderst jemand der einen Dateisystemtreiber
geschrieben hat) Vorschläge machen könntet. Ich hoffe es stört euch
nicht zu sehr, dass ich nicht ganz den LOST-Code-Layout folge.

#ifndef _CDI_FS_H_
#define _CDI_FS_H_

#include "types.h"
#include "cdi.h"
#include "cdi/lists.h"

#define CDI_FS_META_NONE       0 /* -/- */
#define CDI_FS_META_MODE       1 /* r/w */
#define CDI_FS_META_OWNER      2 /* r/w */
#define CDI_FS_META_GROUP      3 /* r/w */
#define CDI_FS_META_SIZE       4 /* r/- */
#define CDI_FS_META_USEDBLOCKS 5 /* r/- */
#define CDI_FS_META_CREATETIME 6 /* r/- */
#define CDI_FS_META_ACCESSTIME 7 /* r/- */
#define CDI_FS_META_CHANGETIME 8 /* r/- */
#define CDI_FS_META_ATTRIBUTES 9 /* r/- */

#define CDI_FS_TYPE_NONE     0
#define CDI_FS_TYPE_FILE     1
#define CDI_FS_TYPE_DIR      2
#define CDI_FS_TYPE_FIF0     3
#define CDI_FS_TYPE_LIFO     4
#define CDI_FS_TYPE_BLOCKDEV 5
#define CDI_FS_TYPE_CHARDEV  6
#define CDI_FS_TYPE_SYMLINK  7
#define CDI_FS_TYPE_SOCKET   8

struct cdi_fs_driver {
  struct cdi_driver drv;
  /**
   * Opens a file/pipe/etc and returns file descriptor
   *  @param path Path to file
   *  @return File descriptor (negative = Failure)
   */
  int open(const char *path);
  /**
   * Closes a file
   *  @param fildes File descriptor
   *  @return 0 = Success
   */
  int close(int fildes);
  /**
   * Creates an file/dir/pipe/etc
   *  @param path Path to file
   *  @param type Whether it is a file/dir/etc
   *  @param mode Permissions
   *  @return 0 = Success
   */
  int create(const char *path,int type,mode_t mode);
  /**
   * Removes a file/dir/pipe/etc
   *  @param path Path to dir
   *  @return 0 = Success
   */
  int remove(const char *path);
  /**
   * Puts filenames of files from dir in list
   *  @param path Path to dir
   *  @param content List with filenames
   *  @return 0 = Success
   */
  int listdir(const char *path,cdi_list_t content);
  /**
   * Sets meta data of a file/dir/pipe/etc
   *  @param path Path to file/dir/pipe/etc
   *  @param which Which meta information to set
   *  @return 0 = Success
   */
  int setmeta(const char *path,int which);
  /**
   * Gets meta data of a file/dir/pipe/etc
   *  @param path Path to file/dir/pipe/etc
   *  @param which Which meta information to get
   *  @return 0 = Success
   */
  int getmeta(const char *path,int which);
};

void cdi_fs_driver_init(struct cdi_fs_driver* driver);
void cdi_fs_driver_destroy(struct cdi_fs_driver* driver);
void cdi_fs_driver_register(struct cdi_fs_driver* driver);

#endif