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diff --git a/doc/doxygen/mainpage b/doc/doxygen/mainpage new file mode 100644 index 0000000..618ebb8 --- /dev/null +++ b/doc/doxygen/mainpage @@ -0,0 +1,96 @@ +// -*- C++ -*- +// +// Doxygen text. Lines beginning with two slashes are comments; lines +// beginning with three slashes are Doxygen input. +// +// Copyright (C) Internet Systems Consortium, Inc. ("ISC") +// +// SPDX-License-Identifier: MPL-2.0 +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, you can obtain one at https://mozilla.org/MPL/2.0/. +// +// See the COPYRIGHT file distributed with this work for additional +// information regarding copyright ownership. + + +/// \mainpage +/// \section mainpage_overview Overview +/// \par +/// +/// This is the beginning of an internals manual for BIND9. It's +/// still very rough in many places. +/// +/// \li See the files in doc/doxygen for the source to this page and +/// the Doxygen configuration that generates the rest of the manual. +/// +/// \li See the tabs at the top of the screen to navigate through the +/// generated documentation. +/// +/// \li See <a href="http://www.doxygen.org/">the Doxygen web site</a> +/// for more information about Doxygen, including its manual. +/// +/// \section mainpage_knownissues Known Issues +/// \par +/// +/// Known issues with our current use of Doxygen: +/// +/// \li In a major departure from previous attempts to use Doxygen +/// with BIND9, this manual attempts to take the simplest approach +/// to every choice Doxygen gives us. We don't generate fancy +/// extra Doxygen tags files from the RFC database. We don't +/// attempt to use Doxygen as a wrapper framework for other +/// documentation (eg, ISC Tech Notes, the ARM, ...). We don't +/// try to generate the list of files to document on the fly. +/// Instead, we attempt to use Doxygen's native facilities +/// wherever possible, on the assumption that we'll add new +/// features later as we need them but should start as simply as +/// we can. +/// +/// \li Our use of \\file is wrong in many places. We probably should +/// be marking header files with the names by which we include +/// them (eg, "dns/resolver.h"). Doxygen reports filename +/// conflicts in a few cases where it can't work out which of +/// several files to use. +/// +/// \li At the moment we're instructing Doxygen to document all +/// functions, whether they have proper comment markup or not. +/// This is a good way to see what's been marked up, but might not +/// be the right approach in the long run. +/// +/// \li See doc/doxygen/doxygen-input-filter.in for local abbreviations. +/// +/// \li We're probably over-using the \\brief markup tag. +/// +/// \li We may in fact be confusing Doxygen to the point where it's +/// not finding markup comments that it should. Needs +/// investigation. +/// +/// \li At the moment I have all the cool "dot" stuff turned off, +/// both because it's a distraction and because it slows down +/// doxygen runs. Maybe after I get a faster desk machine. :) +/// +/// \li At the moment we're producing a single "BIND9 Internals" +/// manual. One of our previous complications was an attempt to +/// produce separate manuals for each library, then cross-link +/// them. We might still need separate library manuals, but, if +/// so, it might be easier to have the BIND9 Internals manual be a +/// superset of the library manuals (ie, reuse the same source to +/// produce differently scoped manuals). Would certainly be +/// simpler than the cross-linking mess, but partly it's a +/// question of how we want to present the material. +/// +/// \li Doxygen is slanted towards C++. It can be tuned towards plain +/// old C, but the C++ bias still shows up in places, eg, the lack +/// of top-level menu support for functions (in C++, the basic +/// unit of programming is the class, which Doxygen does support +/// directly). This is a bit annoying, but not all that +/// critical. +/// +/// \li If we ever get really ambitious, we might try processing +/// Doxygen's XML output, which is basically a dump of what Doxygen +/// was able to scrape from the sources. This would be a major +/// project, just something to think about if there's something we +/// really don't like about the output Doxygen generates. Punt +/// for now. |