funfs/cachefs.h

   1 #ifndef __CACHEFS_H
   2 #define __CACHEFS_H
   3
   4 #include "wvfs.h"
   5 #include "cachefsrcache.h"
   6
   7 #include <wvlog.h>
   8 #include <uniconf.h>
   9
  10 #define MT_GETATTR          1
  11 #define MT_READLINK         3
  12 #define MT_INVAL_FD         10
  13 #define MT_INVAL_PATH       11
  14
  15
  16 class CacheFS : public WvFS, protected ReadCache
  17 {
  18     friend class CacheFSCbMgr;
  19     friend class AsyncReadblock;
  20
  21 public:
  22     CacheFS(WvFS *_fs, UniConf _cfg);
  23     virtual ~CacheFS();
  24
  25     /*** WvFS Stuff ***/
  26     virtual int fs_chmod(CONTEXT, PATH, mode_t mode);
  27     virtual int fs_chown(CONTEXT, PATH, uid_t uid, gid_t gid);
  28     virtual int fs_getattr(CONTEXT, PATH, struct fuse_attr *attr);
  29     virtual int fs_getdir(CONTEXT, PATH, WvFuseDirCb &cb);
  30     virtual int fs_link(CONTEXT, PATH, WvStringParm to);
  31     virtual int fs_mkdir(CONTEXT, PATH, mode_t mode);
  32     virtual int fs_mknod(CONTEXT, PATH, mode_t mode, dev_t rdev);
  33     virtual int fs_open(CONTEXT, PATH, int flags);
  34     virtual int fs_readlink(CONTEXT, PATH, char *buf, size_t size);
  35     virtual int fs_rename(CONTEXT, PATH, WvStringParm to);
  36     virtual int fs_rmdir(CONTEXT, PATH);
  37     virtual int fs_symlink(CONTEXT, PATH, WvStringParm to);
  38     virtual int fs_unlink(CONTEXT, PATH);
  39     virtual int fs_utime(CONTEXT, PATH, struct utimbuf *buf);
  40
  41     virtual int fs_release(CONTEXT, FD);
  42     virtual int fs_read(CONTEXT, FD, char *buf, size_t size, off_t offset);
  43     virtual int fs_truncate(CONTEXT, FD, off_t size);
  44     virtual int fs_write(CONTEXT, FD, const char *buf, size_t size,
  45             off_t offset);
  46
  47     virtual int fs_statfs(CONTEXT, struct fuse_kstatfs *fst);
  48
  49     virtual void set_message_callback(WvFSMessageCB cb)
  50         { messagecb = cb; }
  51
  52     void message_handler(int mtype, WvStringParm path);
  53
  54 protected:
  55     WvFS *fs;
  56     WvLog log;
  57
  58     WvFSMessageCB messagecb;
  59 };
  60
  61 #endif