fuse_lowlevel_compat.h

Linux下fuse用户文件系统的的源代码

/*
    FUSE: Filesystem in Userspace
    Copyright (C) 2001-2006  Miklos Szeredi <[e-mail]>

    This program can be distributed under the terms of the GNU LGPL.
    See the file COPYING.LIB.
*/

/* these definitions provide source compatibility to prior versions.
   Do not include this file directly! */

struct fuse_lowlevel_ops_compat25 {
    void (*init) (void *userdata);
    void (*destroy) (void *userdata);
    void (*lookup) (fuse_req_t req, fuse_ino_t parent, const char *name);
    void (*forget) (fuse_req_t req, fuse_ino_t ino, unsigned long nlookup);
    void (*getattr) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi);
    void (*setattr) (fuse_req_t req, fuse_ino_t ino, struct stat *attr,
                     int to_set, struct fuse_file_info *fi);
    void (*readlink) (fuse_req_t req, fuse_ino_t ino);
    void (*mknod) (fuse_req_t req, fuse_ino_t parent, const char *name,
                   mode_t mode, dev_t rdev);
    void (*mkdir) (fuse_req_t req, fuse_ino_t parent, const char *name,
                   mode_t mode);
    void (*unlink) (fuse_req_t req, fuse_ino_t parent, const char *name);
    void (*rmdir) (fuse_req_t req, fuse_ino_t parent, const char *name);
    void (*symlink) (fuse_req_t req, const char *link, fuse_ino_t parent,
                     const char *name);
    void (*rename) (fuse_req_t req, fuse_ino_t parent, const char *name,
                    fuse_ino_t newparent, const char *newname);
    void (*link) (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent,
                  const char *newname);
    void (*open) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi);
    void (*read) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
                  struct fuse_file_info *fi);
    void (*write) (fuse_req_t req, fuse_ino_t ino, const char *buf,
                   size_t size, off_t off, struct fuse_file_info *fi);
    void (*flush) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi);
    void (*release) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi);
    void (*fsync) (fuse_req_t req, fuse_ino_t ino, int datasync,
                   struct fuse_file_info *fi);
    void (*opendir) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi);
    void (*readdir) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
                     struct fuse_file_info *fi);
    void (*releasedir) (fuse_req_t req, fuse_ino_t ino,
                        struct fuse_file_info *fi);
    void (*fsyncdir) (fuse_req_t req, fuse_ino_t ino, int datasync,
                      struct fuse_file_info *fi);
    void (*statfs) (fuse_req_t req);
    void (*setxattr) (fuse_req_t req, fuse_ino_t ino, const char *name,
                      const char *value, size_t size, int flags);
    void (*getxattr) (fuse_req_t req, fuse_ino_t ino, const char *name,
                      size_t size);
    void (*listxattr) (fuse_req_t req, fuse_ino_t ino, size_t size);
    void (*removexattr) (fuse_req_t req, fuse_ino_t ino, const char *name);
    void (*access) (fuse_req_t req, fuse_ino_t ino, int mask);
    void (*create) (fuse_req_t req, fuse_ino_t parent, const char *name,
                    mode_t mode, struct fuse_file_info *fi);
};

struct fuse_session *fuse_lowlevel_new_compat25(struct fuse_args *args,
                        const struct fuse_lowlevel_ops_compat25 *op,
                        size_t op_size, void *userdata);

size_t fuse_dirent_size(size_t namelen);

char *fuse_add_dirent(char *buf, const char *name, const struct stat *stbuf,
                      off_t off);

#ifndef __FreeBSD__

#include <sys/statfs.h>

struct fuse_lowlevel_ops_compat {
    void (*init) (void *userdata);
    void (*destroy) (void *userdata);
    void (*lookup) (fuse_req_t req, fuse_ino_t parent, const char *name);
    void (*forget) (fuse_req_t req, fuse_ino_t ino, unsigned long nlookup);
    void (*getattr) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info_compat *fi);
    void (*setattr) (fuse_req_t req, fuse_ino_t ino, struct stat *attr,
                     int to_set, struct fuse_file_info_compat *fi);
    void (*readlink) (fuse_req_t req, fuse_ino_t ino);
    void (*mknod) (fuse_req_t req, fuse_ino_t parent, const char *name,
                   mode_t mode, dev_t rdev);
    void (*mkdir) (fuse_req_t req, fuse_ino_t parent, const char *name,
                   mode_t mode);
    void (*unlink) (fuse_req_t req, fuse_ino_t parent, const char *name);
    void (*rmdir) (fuse_req_t req, fuse_ino_t parent, const char *name);
    void (*symlink) (fuse_req_t req, const char *link, fuse_ino_t parent,
                     const char *name);
    void (*rename) (fuse_req_t req, fuse_ino_t parent, const char *name,
                    fuse_ino_t newparent, const char *newname);
    void (*link) (fuse_req_t req, fuse_ino_t ino, fuse_ino_t newparent,
                  const char *newname);
    void (*open) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info_compat *fi);
    void (*read) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
                  struct fuse_file_info_compat *fi);
    void (*write) (fuse_req_t req, fuse_ino_t ino, const char *buf,
                   size_t size, off_t off, struct fuse_file_info_compat *fi);
    void (*flush) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info_compat *fi);
    void (*release) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info_compat *fi);
    void (*fsync) (fuse_req_t req, fuse_ino_t ino, int datasync,
                   struct fuse_file_info_compat *fi);
    void (*opendir) (fuse_req_t req, fuse_ino_t ino, struct fuse_file_info_compat *fi);
    void (*readdir) (fuse_req_t req, fuse_ino_t ino, size_t size, off_t off,
                     struct fuse_file_info_compat *fi);
    void (*releasedir) (fuse_req_t req, fuse_ino_t ino,
                        struct fuse_file_info_compat *fi);
    void (*fsyncdir) (fuse_req_t req, fuse_ino_t ino, int datasync,
                      struct fuse_file_info_compat *fi);
    void (*statfs) (fuse_req_t req);
    void (*setxattr) (fuse_req_t req, fuse_ino_t ino, const char *name,
                      const char *value, size_t size, int flags);
    void (*getxattr) (fuse_req_t req, fuse_ino_t ino, const char *name,
                      size_t size);
    void (*listxattr) (fuse_req_t req, fuse_ino_t ino, size_t size);
    void (*removexattr) (fuse_req_t req, fuse_ino_t ino, const char *name);
    void (*access) (fuse_req_t req, fuse_ino_t ino, int mask);
    void (*create) (fuse_req_t req, fuse_ino_t parent, const char *name,
                    mode_t mode, struct fuse_file_info_compat *fi);
};

int fuse_reply_statfs_compat(fuse_req_t req, const struct statfs *stbuf);

int fuse_reply_open_compat(fuse_req_t req,
                           const struct fuse_file_info_compat *fi);

struct fuse_session *fuse_lowlevel_new_compat(const char *opts,
                            const struct fuse_lowlevel_ops_compat *op,
                            size_t op_size, void *userdata);

#endif /* __FreeBSD__ */

struct fuse_chan_ops_compat24 {
    int (*receive)(struct fuse_chan *ch, char *buf, size_t size);
    int (*send)(struct fuse_chan *ch, const struct iovec iov[], size_t count);
    void (*destroy)(struct fuse_chan *ch);
};

struct fuse_chan *fuse_chan_new_compat24(struct fuse_chan_ops_compat24 *op,
                                         int fd, size_t bufsize, void *data);

int fuse_chan_receive(struct fuse_chan *ch, char *buf, size_t size);
struct fuse_chan *fuse_kern_chan_new(int fd);