Inheritance diagram for miosix::MountpointFsDirectory:

Collaboration diagram for miosix::MountpointFsDirectory:

Public Member Functions
	MountpointFsDirectory (intrusive_ref_ptr< FilesystemBase > parent, FastMutex &mutex, map< StringPart, int > &dirs, bool root, int currentInode, int parentInode)

virtual int	getdents (void *dp, int len)

Public Member Functions inherited from miosix::DirectoryBase
	DirectoryBase (intrusive_ref_ptr< FilesystemBase > parent)

virtual ssize_t	write (const void *data, size_t len)

virtual ssize_t	read (void *data, size_t len)

virtual off_t	lseek (off_t pos, int whence)

virtual int	fstat (struct stat *pstat) const

Public Member Functions inherited from miosix::FileBase
	FileBase (intrusive_ref_ptr< FilesystemBase > parent)

virtual int	isatty () const

virtual int	fcntl (int cmd, int opt)

virtual int	ioctl (int cmd, void *arg)

const intrusive_ref_ptr < FilesystemBase >	getParent () const

virtual	~FileBase ()

Additional Inherited Members
Protected Member Functions inherited from miosix::IntrusiveRefCounted
	IntrusiveRefCounted ()

	IntrusiveRefCounted (const IntrusiveRefCounted &)

IntrusiveRefCounted &	operator= (const IntrusiveRefCounted &)

Static Protected Member Functions inherited from miosix::DirectoryBase
static int	addEntry (char *pos, char end, int ino, char type, const StringPart &n)

static int	addDefaultEntries (char **pos, int thisIno, int upIno)

static int	addTerminatingEntry (char *pos, char end)

Static Protected Attributes inherited from miosix::DirectoryBase
static const int	direntHeaderSizeNoPadding =offsetof(struct dirent,d_name)

static const int	direntHeaderSize =(direntHeaderSizeNoPadding+3+3)/4*4

static const int	minimumBufferSize =3*direntHeaderSize
	Minimum buffer accepted by getdents, two for . and .., plus terminating.

Detailed Description

Directory class for MountpointFs

Constructor & Destructor Documentation

miosix::MountpointFsDirectory::MountpointFsDirectory	(	intrusive_ref_ptr< FilesystemBase >	parent,
		FastMutex &	mutex,
		map< StringPart, int > &	dirs,
		bool	root,
		int	currentInode,
		int	parentInode
	)

inline

Parameters

parent	parent filesystem
mutex	mutex to lock when accessing the file map
dirs	file map
root	true if we're listing the root directory
currentInode	inode of the directory we're listing
parentInode	inode of the parent directory

int miosix::MountpointFsDirectory::getdents	(	void *	dp,
		int	len
	)

virtual

Also directories can be opened as files. In this case, this system call allows to retrieve directory entries.

Parameters

dp	pointer to a memory buffer where one or more struct dirent will be placed. dp must be four words aligned.
len	memory buffer size.

Returns: the number of bytes read on success, or a negative number on failure.

Reimplemented from miosix::FileBase.

The documentation for this class was generated from the following file: