funfs/wvfs.h

   1 /*
   2  * WvFUSE:  A WvStreams library for FUSE.
   3  *   Copyright (C) 2002 Net Integration Technologies, Inc.
   4  *
   5  * This program can be distributed under the terms of the GNU GPL.
   6  * See the file COPYING.
   7  *
   8  * This is the base class for a generic userspace filesystem.
   9  * The majority of these functions should be overridden with your actual
  10  * filesystem functions.
  11  */
  12
  13 #ifndef __WVFS_H
  14 #define __WVFS_H
  15
  16 #include "wvfshelpers.h"
  17 #include "wvfusecbmgr.h"
  18
  19 #include <wvstring.h>
  20
  21 #include <errno.h>
  22 #include <sys/stat.h>
  23
  24 #define CONTEXT WvStream *context
  25 #define PATH WvStringParm path
  26 #define FD int fd
  27
  28 class WvStream;
  29
  30 typedef WvCallback<void, int, WvStringParm> WvFSMessageCB;
  31
  32 class WvFS
  33 {
  34 public:
  35     // Override these functions with your own.
  36     virtual int fs_chmod(CONTEXT, PATH, mode_t mode) = 0;
  37     virtual int fs_chown(CONTEXT, PATH, uid_t uid, gid_t gid) = 0;
  38     virtual int fs_getattr(CONTEXT, PATH, struct fuse_attr *attr) = 0;
  39     virtual int fs_getdir(CONTEXT, PATH, WvFuseDirCb &cb) = 0;
  40     virtual int fs_link(CONTEXT, PATH, WvStringParm to) = 0;
  41     virtual int fs_mkdir(CONTEXT, PATH, mode_t mode) = 0;
  42     virtual int fs_mknod(CONTEXT, PATH, mode_t mode, dev_t rdev) = 0;
  43     virtual int fs_open(CONTEXT, PATH, int flags) = 0;
  44     virtual int fs_readlink(CONTEXT, PATH, char *buf, size_t size) = 0;
  45     virtual int fs_rename(CONTEXT, PATH, WvStringParm to) = 0;
  46     virtual int fs_rmdir(CONTEXT, PATH) = 0;
  47     virtual int fs_symlink(CONTEXT, PATH, WvStringParm to) = 0;
  48     virtual int fs_unlink(CONTEXT, PATH) = 0;
  49     virtual int fs_utime(CONTEXT, PATH, struct utimbuf *buf) = 0;
  50
  51     virtual int fs_release(CONTEXT, FD) = 0;
  52     virtual int fs_read(CONTEXT, FD, char *buf, size_t size, off_t offset) = 0;
  53     virtual int fs_truncate(CONTEXT, FD, off_t size) = 0;
  54     virtual int fs_write(CONTEXT, FD, const char *buf, size_t size,
  55             off_t offset) = 0;
  56
  57     virtual int fs_statfs(CONTEXT, struct fuse_kstatfs *fst) = 0;
  58
  59     virtual void set_message_callback(WvFSMessageCB cb) = 0;
  60 };
  61
  62
  63 #endif // __WVFS_H
  64