Revert "worker: remove ERR_CLOSED_MESSAGE_PORT"

This reverts commit 73370b4. The unit test is preserved to make sure it does not break #26463 again. PR-URL: #38510 Fixes: #38499 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Rich Trott <[email protected]> Reviewed-By: James M Snell <[email protected]>
nodejs · Jun 11, 2021 · 2c66305 · 2c66305
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diff --git a/doc/api/errors.md b/doc/api/errors.md
@@ -714,6 +714,12 @@ Used when a child process is being forked without specifying an IPC channel.
 Used when the main process is trying to read data from the child process's
 STDERR/STDOUT, and the data's length is longer than the `maxBuffer` option.
 
+<a id="ERR_CLOSED_MESSAGE_PORT"></a>
+### ERR_CLOSED_MESSAGE_PORT
+
+There was an attempt to use a `MessagePort` instance in a closed
+state, usually after `.close()` has been called.
+
 <a id="ERR_CONSOLE_WRITABLE_STREAM"></a>
 ### `ERR_CONSOLE_WRITABLE_STREAM`
 

diff --git a/src/node_errors.h b/src/node_errors.h
@@ -32,6 +32,7 @@ void OnFatalError(const char* location, const char* message);
   V(ERR_BUFFER_CONTEXT_NOT_AVAILABLE, Error)                                   \
   V(ERR_BUFFER_OUT_OF_BOUNDS, RangeError)                                      \
   V(ERR_BUFFER_TOO_LARGE, Error)                                               \
+  V(ERR_CLOSED_MESSAGE_PORT, Error)                                            \
   V(ERR_CONSTRUCT_CALL_REQUIRED, TypeError)                                    \
   V(ERR_CONSTRUCT_CALL_INVALID, TypeError)                                     \
   V(ERR_CRYPTO_TIMING_SAFE_EQUAL_LENGTH, RangeError)                           \
@@ -98,6 +99,7 @@ ERRORS_WITH_CODE(V)
 #define PREDEFINED_ERROR_MESSAGES(V)                                           \
   V(ERR_BUFFER_CONTEXT_NOT_AVAILABLE,                                          \
     "Buffer is not available for the current Context")                         \
+  V(ERR_CLOSED_MESSAGE_PORT, "Cannot send data on closed MessagePort")         \
   V(ERR_CONSTRUCT_CALL_INVALID, "Constructor cannot be called")                \
   V(ERR_CONSTRUCT_CALL_REQUIRED, "Cannot call constructor without `new`")      \
   V(ERR_CRYPTO_TIMING_SAFE_EQUAL_LENGTH,                                       \

diff --git a/src/node_messaging.cc b/src/node_messaging.cc
@@ -1040,7 +1040,11 @@ void MessagePort::MoveToContext(const FunctionCallbackInfo<Value>& args) {
         "The \"port\" argument must be a MessagePort instance");
   }
   MessagePort* port = Unwrap<MessagePort>(args[0].As<Object>());
-  CHECK_NOT_NULL(port);
+  if (port == nullptr || port->IsHandleClosing()) {
+    Isolate* isolate = env->isolate();
+    THROW_ERR_CLOSED_MESSAGE_PORT(isolate);
+    return;
+  }
 
   Local<Value> context_arg = args[1];
   ContextifyContext* context_wrapper;