Commit Graph

3 Commits

Author SHA1 Message Date
Joyee Cheung
12fb94c78c
dns: refactor default resolver
This patch refactors the DNS default resolver code to make it
easier to be included in a snapshot:

- The code specific for the callback-based DNS resolver are not
  in a separate module to make the dependency clearer (it's not
  actually needed if the user only ever loads `dns/promises`)
- The common part of the callback-based resolver and the promise-
  based resolver is now ResolverBase. The other two user-facing
  resolvers are now subclasses of ResolverBase. The default
  Resolver is constructed with just ResolverBase. This would
  be fine as the default resolver is never actually exposed
  to the user-land and it has been working using duck-typing anyway.
- Move the construction of Resolver subclasses into a common
  method `createResolverClass()` to reduce code duplication.
  The two subclasses now also share the same base constructor.
  This would make it possible for them to also share code
  for snapshot support later.
- `--dns-result-order` is now queried and refreshed during
  pre-execution. To avoid loading the cares_wrap binding unnecessarily
  the loading of the binding is also made lazy.

PR-URL: https://github.com/nodejs/node/pull/44541
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Zeyu "Alex" Yang <himself65@outlook.com>
Reviewed-By: Minwoo Jung <nodecorelab@gmail.com>
2022-09-13 13:36:08 +00:00
Joyee Cheung
472edc775d
src: disambiguate terms used to refer to builtins and addons
The term "native module" dates back to some of the oldest code
in the code base. Within the context of Node.js core it usually
refers to modules that are native to Node.js (e.g. fs, http),
but it can cause confusion for people who don't work on this
part of the code base, as "native module" can also refer to
native addons - which is even the case in some of the API
docs and error messages.

This patch tries to make the usage of these terms more consistent.
Now within the context of Node.js core:

- JavaScript scripts that are built-in to Node.js are now referred
  to as "built-in(s)". If they are available as modules,
  they can also be referred to as "built-in module(s)".
- Dynamically-linked shared objects that are loaded into
  the Node.js processes are referred to as "addons".

We will try to avoid using the term "native modules" because it could
be ambiguous.

Changes in this patch:

File names:
- node_native_module.h -> node_builtins.h,
- node_native_module.cc -> node_builtins.cc

C++ binding names:
- `native_module` -> `builtins`

`node::Environment`:
- `native_modules_without_cache` -> `builtins_without_cache`
- `native_modules_with_cache` -> `builtins_with_cache`
- `native_modules_in_snapshot` -> `builtins_in_cache`
- `native_module_require` -> `builtin_module_require`

`node::EnvSerializeInfo`:
- `native_modules` -> `builtins

`node::native_module::NativeModuleLoader`:
- `native_module` namespace -> `builtins` namespace
- `NativeModuleLoader` -> `BuiltinLoader`
- `NativeModuleRecordMap` -> `BuiltinSourceMap`
- `NativeModuleCacheMap` -> `BuiltinCodeCacheMap`
- `ModuleIds` -> `BuiltinIds`
- `ModuleCategories` -> `BuiltinCategories`
- `LoadBuiltinModuleSource` -> `LoadBuiltinSource`

`loader.js`:
- `NativeModule` -> `BuiltinModule` (the `NativeModule` name used in
  `process.moduleLoadList` is kept for compatibility)

And other clarifications in the documentation and comments.

PR-URL: https://github.com/nodejs/node/pull/44135
Fixes: https://github.com/nodejs/node/issues/44036
Reviewed-By: Jacob Smith <jacob@frende.me>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Jan Krems <jan.krems@gmail.com>
2022-08-09 01:36:49 +08:00
Joyee Cheung
06f5d45647
bootstrap: support more builtins in the embedded code cache
This patch:

- Make NativeModuleLoader::LookupAndCompile() detect parameters based
  on module IDs. This allows us to compile more builtins when
  generating the embedded bootstrap, including
  - internal/per_context/*
  - internal/bootstrap/*
  - internal/main/*
- Move pre_execution.js to lib/internal/process as it needs to be
  compiled as a regular built-in module, unlike other scripts
  in lib/internal/bootstrap
- Move markBootstrapComplete() to the performance binding instead of
  making it a function-wrapper-based global to reduce number of
  special cases.

PR-URL: https://github.com/nodejs/node/pull/44018
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
2022-08-05 01:11:20 +08:00