mirror of https://github.com/ceph/ceph
93 lines
2.4 KiB
ReStructuredText
93 lines
2.4 KiB
ReStructuredText
==================
|
|
Documenting Ceph
|
|
==================
|
|
|
|
Code Documentation
|
|
==================
|
|
|
|
C and C++ can be documented with Doxygen_, using the subset of Doxygen
|
|
markup supported by Asphyxiate_.
|
|
|
|
.. _Doxygen: http://www.stack.nl/~dimitri/doxygen/
|
|
.. _Asphyxiate: https://github.com/ceph/asphyxiate
|
|
|
|
The general format for function documentation is::
|
|
|
|
/**
|
|
* Short description
|
|
*
|
|
* Detailed description when necessary
|
|
*
|
|
* preconditons, postconditions, warnings, bugs or other notes
|
|
*
|
|
* parameter reference
|
|
* return value (if non-void)
|
|
*/
|
|
|
|
This should be in the header where the function is declared, and
|
|
functions should be grouped into logical categories. The `librados C
|
|
API`_ provides a complete example. It is pulled into Sphinx by
|
|
`librados.rst`_, which is rendered at :doc:`/api/librados`.
|
|
|
|
.. _`librados C API`: https://github.com/ceph/ceph/blob/master/src/include/rados/librados.h
|
|
.. _`librados.rst`: https://raw.github.com/ceph/ceph/master/doc/api/librados.rst
|
|
|
|
Drawing diagrams
|
|
================
|
|
|
|
Graphviz
|
|
--------
|
|
|
|
You can use Graphviz_, as explained in the `Graphviz extension documentation`_.
|
|
|
|
.. _Graphviz: http://graphviz.org/
|
|
.. _`Graphviz extension documentation`: http://sphinx.pocoo.org/ext/graphviz.html
|
|
|
|
.. graphviz::
|
|
|
|
digraph "example" {
|
|
foo -> bar;
|
|
bar -> baz;
|
|
bar -> thud;
|
|
}
|
|
|
|
Most of the time, you'll want to put the actual DOT source in a
|
|
separate file, like this::
|
|
|
|
.. graphviz:: myfile.dot
|
|
|
|
|
|
Ditaa
|
|
-----
|
|
|
|
You can use Ditaa_:
|
|
|
|
.. _Ditaa: http://ditaa.sourceforge.net/
|
|
|
|
.. ditaa::
|
|
|
|
+--------------+ /=----\
|
|
| hello, world |-->| hi! |
|
|
+--------------+ \-----/
|
|
|
|
|
|
Blockdiag
|
|
---------
|
|
|
|
If a use arises, we can integrate Blockdiag_. It is a Graphviz-style
|
|
declarative language for drawing things, and includes:
|
|
|
|
- `block diagrams`_: boxes and arrows (automatic layout, as opposed to
|
|
Ditaa_)
|
|
- `sequence diagrams`_: timelines and messages between them
|
|
- `activity diagrams`_: subsystems and activities in them
|
|
- `network diagrams`_: hosts, LANs, IP addresses etc (with `Cisco
|
|
icons`_ if wanted)
|
|
|
|
.. _Blockdiag: http://blockdiag.com/
|
|
.. _`Cisco icons`: http://pypi.python.org/pypi/blockdiagcontrib-cisco/
|
|
.. _`block diagrams`: http://blockdiag.com/en/blockdiag/
|
|
.. _`sequence diagrams`: http://blockdiag.com/en/seqdiag/index.html
|
|
.. _`activity diagrams`: http://blockdiag.com/en/actdiag/index.html
|
|
.. _`network diagrams`: http://blockdiag.com/en/nwdiag/
|