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| author | Gabriel Schulhof <gabriel.schulhof@intel.com> | 2018-06-13 14:01:33 -0400 |
|---|---|---|
| committer | Gabriel Schulhof <gabriel.schulhof@intel.com> | 2018-07-03 18:34:50 -0400 |
| commit | 602da6492f278c1345f7f2d82014d9248254476b (patch) | |
| tree | 41e76b28acea565ed3d5ee04096d8d15919afc23 /src | |
| parent | a15ea5d7ca1cf0f48ce1f2be62b1cd446a50b06d (diff) | |
| download | android-node-v8-602da6492f278c1345f7f2d82014d9248254476b.tar.gz android-node-v8-602da6492f278c1345f7f2d82014d9248254476b.tar.bz2 android-node-v8-602da6492f278c1345f7f2d82014d9248254476b.zip | |
src: add context-aware init macro and doc
Introduces macros `NODE_MODULE_INITIALIZER` which expands to the name
of the special symbol that process.dlopen() will look for to initialize
an addon, and `NODE_MODULE_INIT()` which creates the boilerplate for
a context-aware module which can be loaded multiple times via the
special symbol mechanism.
Additionally, provides an example of using the new macro to construct
an addon which stores per-addon-instance data in a heap-allocated
structure that gets passed to each binding, rather than in a collection
of global static variables.
Re: https://github.com/nodejs/node/issues/21291#issuecomment-396729727
PR-URL: https://github.com/nodejs/node/pull/21318
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/node.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/node.h b/src/node.h index b551c8bb09..ed2c074b92 100644 --- a/src/node.h +++ b/src/node.h @@ -579,6 +579,28 @@ extern "C" NODE_EXTERN void node_module_register(void* mod); */ #define NODE_MODULE_DECL /* nothing */ +#define NODE_MODULE_INITIALIZER_BASE node_register_module_v + +#define NODE_MODULE_INITIALIZER_X(base, version) \ + NODE_MODULE_INITIALIZER_X_HELPER(base, version) + +#define NODE_MODULE_INITIALIZER_X_HELPER(base, version) base##version + +#define NODE_MODULE_INITIALIZER \ + NODE_MODULE_INITIALIZER_X(NODE_MODULE_INITIALIZER_BASE, \ + NODE_MODULE_VERSION) + +#define NODE_MODULE_INIT() \ + extern "C" NODE_MODULE_EXPORT void \ + NODE_MODULE_INITIALIZER(v8::Local<v8::Object> exports, \ + v8::Local<v8::Value> module, \ + v8::Local<v8::Context> context); \ + NODE_MODULE_CONTEXT_AWARE(NODE_GYP_MODULE_NAME, \ + NODE_MODULE_INITIALIZER) \ + void NODE_MODULE_INITIALIZER(v8::Local<v8::Object> exports, \ + v8::Local<v8::Value> module, \ + v8::Local<v8::Context> context) + /* Called after the event loop exits but before the VM is disposed. * Callbacks are run in reverse order of registration, i.e. newest first. */ |