1 files changed, 152 insertions, 0 deletions
diff --git a/ext/node/polyfills/internal_binding/async_wrap.ts b/ext/node/polyfills/internal_binding/async_wrap.ts
new file mode 100644
index 000000000..c8df985cd
--- /dev/null
+++ b/ext/node/polyfills/internal_binding/async_wrap.ts
@@ -0,0 +1,152 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// This module ports:
+// - https://github.com/nodejs/node/blob/master/src/async_wrap-inl.h
+// - https://github.com/nodejs/node/blob/master/src/async_wrap.cc
+// - https://github.com/nodejs/node/blob/master/src/async_wrap.h
+
+export function registerDestroyHook(
+  // deno-lint-ignore no-explicit-any
+  _target: any,
+  _asyncId: number,
+  _prop: { destroyed: boolean },
+) {
+  // TODO(kt3k): implement actual procedures
+}
+
+export enum constants {
+  kInit,
+  kBefore,
+  kAfter,
+  kDestroy,
+  kPromiseResolve,
+  kTotals,
+  kCheck,
+  kExecutionAsyncId,
+  kTriggerAsyncId,
+  kAsyncIdCounter,
+  kDefaultTriggerAsyncId,
+  kUsesExecutionAsyncResource,
+  kStackLength,
+}
+
+const asyncHookFields = new Uint32Array(Object.keys(constants).length);
+
+export { asyncHookFields as async_hook_fields };
+
+// Increment the internal id counter and return the value.
+export function newAsyncId() {
+  return ++asyncIdFields[constants.kAsyncIdCounter];
+}
+
+export enum UidFields {
+  kExecutionAsyncId,
+  kTriggerAsyncId,
+  kAsyncIdCounter,
+  kDefaultTriggerAsyncId,
+  kUidFieldsCount,
+}
+
+const asyncIdFields = new Float64Array(Object.keys(UidFields).length);
+
+// `kAsyncIdCounter` should start at `1` because that'll be the id the execution
+// context during bootstrap.
+asyncIdFields[UidFields.kAsyncIdCounter] = 1;
+
+// `kDefaultTriggerAsyncId` should be `-1`, this indicates that there is no
+// specified default value and it should fallback to the executionAsyncId.
+// 0 is not used as the magic value, because that indicates a missing
+// context which is different from a default context.
+asyncIdFields[UidFields.kDefaultTriggerAsyncId] = -1;
+
+export { asyncIdFields };
+
+export enum providerType {
+  NONE,
+  DIRHANDLE,
+  DNSCHANNEL,
+  ELDHISTOGRAM,
+  FILEHANDLE,
+  FILEHANDLECLOSEREQ,
+  FIXEDSIZEBLOBCOPY,
+  FSEVENTWRAP,
+  FSREQCALLBACK,
+  FSREQPROMISE,
+  GETADDRINFOREQWRAP,
+  GETNAMEINFOREQWRAP,
+  HEAPSNAPSHOT,
+  HTTP2SESSION,
+  HTTP2STREAM,
+  HTTP2PING,
+  HTTP2SETTINGS,
+  HTTPINCOMINGMESSAGE,
+  HTTPCLIENTREQUEST,
+  JSSTREAM,
+  JSUDPWRAP,
+  MESSAGEPORT,
+  PIPECONNECTWRAP,
+  PIPESERVERWRAP,
+  PIPEWRAP,
+  PROCESSWRAP,
+  PROMISE,
+  QUERYWRAP,
+  SHUTDOWNWRAP,
+  SIGNALWRAP,
+  STATWATCHER,
+  STREAMPIPE,
+  TCPCONNECTWRAP,
+  TCPSERVERWRAP,
+  TCPWRAP,
+  TTYWRAP,
+  UDPSENDWRAP,
+  UDPWRAP,
+  SIGINTWATCHDOG,
+  WORKER,
+  WORKERHEAPSNAPSHOT,
+  WRITEWRAP,
+  ZLIB,
+}
+
+const kInvalidAsyncId = -1;
+
+export class AsyncWrap {
+  provider: providerType = providerType.NONE;
+  asyncId = kInvalidAsyncId;
+
+  constructor(provider: providerType) {
+    this.provider = provider;
+    this.getAsyncId();
+  }
+
+  getAsyncId(): number {
+    this.asyncId = this.asyncId === kInvalidAsyncId
+      ? newAsyncId()
+      : this.asyncId;
+
+    return this.asyncId;
+  }
+
+  getProviderType() {
+    return this.provider;
+  }
+}