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48 lines
2.3 KiB
Markdown
48 lines
2.3 KiB
Markdown
# IRCd Library API
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#### Project Namespaces
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* `IRCD_` Preprocessor #define and macro namespace.
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* `RB_` Preprocessor #define and macro namespace (legacy / low-level).
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* `ircd_` C namespace and demangled bindings.
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* `ircd::` C++ namespace scope.
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#### What To Include
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##### libircd headers are organized into several aggregates groups
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As a C++ project there are a lot of header files. Header files depend on other
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header files. We don't expect the developer of a compilation unit to figure out
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an exact list of header files necessary to include for that unit. Instead we
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have aggregated groups of header files which are then precompiled. These
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aggregations are mostly oriented around a specific project dependency.
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> Note: The term 'stack' may be found in place of the preferred term 'group'
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in other documentation.
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- Standard Include group `<ircd/ircd.h>` is the main header group. This group
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involves the standard library and most of libircd. This is what an embedder
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will be working with. These headers will expose our own interfaces wrapping
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3rd party dependencies which are not included there.
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There are actually two files in play here: `<ircd/stdinc.h>` and `<ircd/ircd.h>`.
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We have to offer two different pre-compilations: one with `-fPIC`
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and one without. Therefor the contents are in `<ircd/stdinc.h>` and the
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preprocessor determination for which is in `<ircd/ircd.h>`.
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- Boost ASIO include group `<ircd/asio.h>` is a header group exposing the
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boost::asio library. We only involve this header in compilation units working
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directly with asio for networking et al. Involving this header file slows down
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compilation compared with the standard group.
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- Boost Spirit include group `<ircd/spirit.h>` is a header group exposing the
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spirit parser framework to compilation units which involve formal grammars.
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Involving this header is a *monumental* slowdown when compiling.
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- JavaScript include group `<ircd/js/js.h>` is a header group exposing symbols
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from the SpiderMonkey JS engine. Alternatively, <ircd/js.h> is part of the
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standard include group which includes any wrapping to hide SpiderMonkey.
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- MAPI include group `<ircd/mapi.h>` is the standard header group for modules.
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This group is an extension to the standard include group but has specific
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tools for pluggable modules which are not part of the libircd core.
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