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process: load internal/async_hooks before inspector hooks registration
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Otherwise the exports of `internal/async_hooks` may be undefined
when the inspector async hooks are registered.

PR-URL: #26866
Fixes: #26798
Refs: #26859
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Refael Ackermann <[email protected]>
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joyeecheung authored and targos committed Mar 27, 2019
1 parent 08383a7 commit 41761cc
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Showing 2 changed files with 17 additions and 10 deletions.
17 changes: 7 additions & 10 deletions lib/internal/async_hooks.js
Original file line number Diff line number Diff line change
Expand Up @@ -93,16 +93,6 @@ const emitDestroyNative = emitHookFactory(destroy_symbol, 'emitDestroyNative');
const emitPromiseResolveNative =
emitHookFactory(promise_resolve_symbol, 'emitPromiseResolveNative');

// Setup the callbacks that node::AsyncWrap will call when there are hooks to
// process. They use the same functions as the JS embedder API. These callbacks
// are setup immediately to prevent async_wrap.setupHooks() from being hijacked
// and the cost of doing so is negligible.
async_wrap.setupHooks({ init: emitInitNative,
before: emitBeforeNative,
after: emitAfterNative,
destroy: emitDestroyNative,
promise_resolve: emitPromiseResolveNative });

// Used to fatally abort the process if a callback throws.
function fatalError(e) {
if (typeof e.stack === 'string') {
Expand Down Expand Up @@ -462,4 +452,11 @@ module.exports = {
emitAfter: emitAfterScript,
emitDestroy: emitDestroyScript,
registerDestroyHook,
nativeHooks: {
init: emitInitNative,
before: emitBeforeNative,
after: emitAfterNative,
destroy: emitDestroyNative,
promise_resolve: emitPromiseResolveNative
}
};
10 changes: 10 additions & 0 deletions lib/internal/bootstrap/node.js
Original file line number Diff line number Diff line change
Expand Up @@ -169,6 +169,16 @@ if (isMainThread) {
setupProcessStdio(getStdout, getStdin, getStderr);
}

// Setup the callbacks that node::AsyncWrap will call when there are hooks to
// process. They use the same functions as the JS embedder API. These callbacks
// are setup immediately to prevent async_wrap.setupHooks() from being hijacked
// and the cost of doing so is negligible.
const { nativeHooks } = NativeModule.require('internal/async_hooks');
internalBinding('async_wrap').setupHooks(nativeHooks);

// XXX(joyeecheung): this has to be done after the initial load of
// `internal/async_hooks` otherwise `async_hooks` cannot require
// `internal/async_hooks`. Investigate why.
if (config.hasInspector) {
const {
enable,
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