fusejs

* init: Initializes filesystem. Called before any other filesystem method
* destroy: Cleans up filesystem. Called on filesystem exit
* lookup: Looks up a directory entry by name and get its attributes.
* forget: Forgets about an inode. The nlookup parameter indicates the number of lookups previously performed on this inode. If the filesystem implements inode lifetimes, it is recommended that inodes acquire a single reference on each lookup, and lose nlookup references on each forget. The filesystem may ignore forget calls, if the inodes don't need to have a limited lifetime. On unmount, it is not guaranteed that all referenced inodes will receive a forget message.

* getattr: Gets file attributes
* setattr: Sets file attributes
* readlink: Reads symbolic link
* mknod: Creates file node. Create a regular file, character device, block device, fifo or socket node.
* mkdir: Creates a directory
* unlink: Removes a file
* rmdir: Removes a directory
* symlink: Creates a symbolic link
* rename: Renames a file
* link: Creates a hard link
* open: Opens a file
* read: Reads data
* write: Writes data
* flush: Flushes data. This is called on each close of an opened file. Since file descriptors can be duplicated (dup, dup2, fork), for one open call there may be many flush calls.Filesystems shouldn't assume that flush will always be called after some writes, or that it will be called at all.
* release: Releases an open file. Release is called when there are no more references to an open file: all file descriptors are closed and all memory mappings are unmapped. For every open call there will be exactly one release call.
* fsync: Synchronizes file contents
* opendir: Opens a directory
* readdir: Reads a directory
* releasedir: Releases an open directory. For every opendir call there will be exactly one releasedir call.
* fsyncdir: Synchronizes directory contents
* statfs: Gets file system statistics
* setxattr: Sets an extended attribute
* getxattr: Gets an extended attribute
* listxattr: Lists extended attribute names
* removexattr: Removes an extended attribute
* access: Checks file access permissions. This will be called for the access() system call. If the 'default_permissions' mount option is given, this method is not called. This method is not called under Linux kernel versions 2.4.x
* create: Creates and opens a file. If the file does not exist, first create it with the specified mode, and then open it. If this method is not implemented or under Linux kernel versions earlier than 2.6.15, the mknod() and open() methods will be called instead.
* getlk: Tests for a POSIX file lock
* setlk: Acquires, modifies or releases a POSIX file lock. If the locking methods are not implemented, the kernel will still allow file locking to work locally. Hence these are only interesting for network filesystems and similar.
* bmap: Map block index within file to block index within device. This makes sense only for block device backed filesystems mounted with the 'blkdev' option
* ioctl (not supported yet): Forever ioctl
* poll (not suppported yet): Polls for IO readiness

Installation

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