Eio manipulation of eXtended attribute.

---

A set of function to manipulate data associated with a specific file.

The functions provided by this API are responsible to manage Extended attribute files. Like file authors, character encoding, checksum, etc.

Functions
Eio_File *	eio_file_xattr (const char *path, Eio_Filter_Cb filter_cb, Eio_Main_Cb main_cb, Eio_Done_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Asynchronously list all eXtended attribute.
Eio_File *	eio_file_xattr_int_set (const char *path, const char *attribute, int xattr_int, Eina_Xattr_Flags flags, Eio_Done_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Define an extented attribute on a file/directory.
Eio_File *	eio_file_xattr_double_set (const char *path, const char *attribute, double xattr_double, Eina_Xattr_Flags flags, Eio_Done_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Define an extented attribute on a file/directory.
Eio_File *	eio_file_xattr_string_set (const char *path, const char *attribute, const char *xattr_string, Eina_Xattr_Flags flags, Eio_Done_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Define a string extented attribute on a file/directory.
Eio_File *	eio_file_xattr_set (const char *path, const char *attribute, const char *xattr_data, unsigned int xattr_size, Eina_Xattr_Flags flags, Eio_Done_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Define an extented attribute on a file/directory.
Eio_File *	eio_file_xattr_get (const char *path, const char *attribute, Eio_Done_Data_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Retrieve the extended attribute of a file/directory.
Eio_File *	eio_file_xattr_int_get (const char *path, const char *attribute, Eio_Done_Int_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Retrieve a extended attribute of a file/directory.
Eio_File *	eio_file_xattr_double_get (const char *path, const char *attribute, Eio_Done_Double_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Retrieve a extended attribute of a file/directory.
Eio_File *	eio_file_xattr_string_get (const char *path, const char *attribute, Eio_Done_String_Cb done_cb, Eio_Error_Cb error_cb, const void *data)
	Retrieve a string extended attribute of a file/directory.

---

Function Documentation

Eio_File* eio_file_xattr	(	const char *	path,
		Eio_Filter_Cb	filter_cb,
		Eio_Main_Cb	main_cb,
		Eio_Done_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Asynchronously list all eXtended attribute.

Parameters:

path	The path to get the eXtended attribute from.
filter_cb	Callback called in the thread to validate the eXtended attribute.
main_cb	Callback called in the main loop for each accepted eXtended attribute.
done_cb	Callback called in the main loop when the all the eXtended attribute have been listed.
error_cb	Callback called in the main loop when something goes wrong during the listing of the eXtended attribute.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

Since :

3.0

Eio_File* eio_file_xattr_double_get	(	const char *	path,
		const char *	attribute,
		Eio_Done_Double_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Retrieve a extended attribute of a file/directory.

Parameters:

path	The path to retrieve the extended attribute from.
attribute	The name of the attribute to retrieve.
done_cb	Callback called from the main loop when getxattr succeeded.
error_cb	Callback called from the main loop when getxattr failed or has been canceled.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

eio_file_xattr_double_get calls eina_xattr_double_get from another thread. This prevents blocking in your apps.

Since :

3.0

Eio_File* eio_file_xattr_double_set	(	const char *	path,
		const char *	attribute,
		double	xattr_double,
		Eina_Xattr_Flags	flags,
		Eio_Done_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Define an extented attribute on a file/directory.

Parameters:

path	The path to set the attribute on.
attribute	The name of the attribute to define.
xattr_double	The value to link the attribute with.
flags	Whether to insert, replace or create the attribute.
done_cb	The callback called from the main loop when setxattr succeeded.
error_cb	The callback called from the main loop when setxattr failed.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

eio_file_xattr_double_set calls eina_xattr_double_set from another thread. This prevents blocking in your apps. If the writing succeeded, the done_cb will be called even if a cancel was requested, but came too late.

Since :

3.0

Eio_File* eio_file_xattr_get	(	const char *	path,
		const char *	attribute,
		Eio_Done_Data_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Retrieve the extended attribute of a file/directory.

Parameters:

path	The path to retrieve the extended attribute from.
attribute	The name of the attribute to retrieve.
done_cb	Callback called from the main loop when getxattr succeeded.
error_cb	Callback called from the main loop when getxattr failed or has been canceled.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

eio_file_xattr_get calls getxattr from another thread. This prevents blocking in your apps.

Since :

3.0

Eio_File* eio_file_xattr_int_get	(	const char *	path,
		const char *	attribute,
		Eio_Done_Int_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Retrieve a extended attribute of a file/directory.

Parameters:

path	The path to retrieve the extended attribute from.
attribute	The name of the attribute to retrieve.
done_cb	Callback called from the main loop when getxattr succeeded.
error_cb	Callback called from the main loop when getxattr failed or has been canceled.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

eio_file_xattr_int_get calls eina_xattr_int_get from another thread. This prevents blocking in your apps.

Since :

3.0

Eio_File* eio_file_xattr_int_set	(	const char *	path,
		const char *	attribute,
		int	xattr_int,
		Eina_Xattr_Flags	flags,
		Eio_Done_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Define an extented attribute on a file/directory.

Parameters:

path	The path to set the attribute on.
attribute	The name of the attribute to define.
xattr_int	The value to link the attribute with.
flags	Whether to insert, replace or create the attribute.
done_cb	The callback called from the main loop when setxattr succeeded.
error_cb	The callback called from the main loop when setxattr failed.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

eio_file_xattr_int_set calls eina_xattr_int_set from another thread. This prevents blocking in your apps. If the writing succeeded, the done_cb will be called even if a cancel was requested, but came too late.

Since :

3.0

Eio_File* eio_file_xattr_set	(	const char *	path,
		const char *	attribute,
		const char *	xattr_data,
		unsigned int	xattr_size,
		Eina_Xattr_Flags	flags,
		Eio_Done_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Define an extented attribute on a file/directory.

Parameters:

path	The path to set the attribute on.
attribute	The name of the attribute to define.
xattr_data	The data to link the attribute with.
xattr_size	The size of the data to set.
flags	Whether to insert, replace or create the attribute.
done_cb	The callback called from the main loop when setxattr succeeded.
error_cb	The callback called from the main loop when setxattr failed.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

eio_file_xattr_set calls setxattr from another thread. This prevents blocking in your apps. If the writing succeeded, the done_cb will be called even if a cancel was requested, but came too late.

Since :

3.0

Eio_File* eio_file_xattr_string_get	(	const char *	path,
		const char *	attribute,
		Eio_Done_String_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Retrieve a string extended attribute of a file/directory.

Parameters:

path	The path to retrieve the extended attribute from.
attribute	The name of the attribute to retrieve.
done_cb	Callback called from the main loop when getxattr succeeded.
error_cb	Callback called from the main loop when getxattr failed or has been canceled.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

eio_file_xattr_string_get calls eina_xattr_string_get from another thread. This prevents blocking in your apps.

Since :

3.0

Eio_File* eio_file_xattr_string_set	(	const char *	path,
		const char *	attribute,
		const char *	xattr_string,
		Eina_Xattr_Flags	flags,
		Eio_Done_Cb	done_cb,
		Eio_Error_Cb	error_cb,
		const void *	data
	)

Define a string extented attribute on a file/directory.

Parameters:

path	The path to set the attribute on.
attribute	The name of the attribute to define.
xattr_string	The string to link the attribute with.
flags	Whether to insert, replace or create the attribute.
done_cb	The callback called from the main loop when setxattr succeeded.
error_cb	The callback called from the main loop when setxattr failed.
data	Unmodified user data passed to callbacks

Returns:

A reference to the I/O operation.

eio_file_xattr_string_set calls eina_xattr_string_set from another thread. This prevents blocking in your apps. If the writing succeeded, the done_cb will be called even if a cancel was requested, but came too late.

Since :

3.0