funfs/wvfuse.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 class implements the main FUSE functions:  creating the filesystem,
   9  *   reading commands, creating objects to process the commands, maintaining
  10  *   nodes, etc.
  11  */
  12
  13 #ifndef __WVFUSE_H
  14 #define __WVFUSE_H
  15
  16 #include "wvfs.h"
  17 #include "wvfuseinomgr.h"
  18
  19 #include <wvfdstream.h>
  20 #include <wvstring.h>
  21 #include <wvstreamlist.h>
  22 #include <wvlog.h>
  23 #include <uniconf.h>
  24
  25 #define FUSE_MAX_PATH 4096
  26 #define FUSE_KERNEL_VERSION_ENV "_FUSE_KERNEL_VERSION"
  27
  28 typedef long unsigned int fino_t;
  29
  30 /** Enable debuging output */
  31 #define FUSE_DEBUG       (1 << 1)
  32
  33 #define FUSE_INVAL_FD     1
  34 #define FUSE_INVAL_PATH   2
  35
  36
  37 class MyFDStream : public WvFDStream
  38 {
  39 public:
  40     MyFDStream(int fd) : WvFDStream(fd) {};
  41     virtual void seterr(int errnum)
  42     {
  43         if (errnum != ENOENT) WvStream::seterr(errnum);
  44     }
  45 };
  46
  47
  48 class WvFuse : public WvStreamList, public WvFuseInoMgr
  49 {
  50 public:
  51     bool fs_unmounted;
  52
  53     WvFuse(WvFS *_fs, UniConf &_cfg);
  54     virtual ~WvFuse();
  55
  56     virtual bool isok() const;
  57     virtual int getfd() const;
  58
  59     void send_reply_raw(char *outbuf, size_t outsize);
  60
  61     void message_handler(int type, WvStringParm path);
  62
  63 protected:
  64     virtual void execute();
  65
  66     void do_invalidate(fino_t ino);
  67
  68     WvFS *fs;
  69     WvLog log;
  70     MyFDStream s;
  71     unsigned int flags;
  72 };
  73
  74 #endif // __WVFUSE_H