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GeezerVison is showing github.com — worker: add name for worker · nodejs/node@eecd327

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  • doc/api
    • worker_threads.md
  • lib
    • internal
      • worker.js
    • worker_threads.js
  • src
    • api
      • environment.cc
    • env-inl.h
    • env.cc
    • env.h
    • env_properties.h
    • node.h
    • node_worker.cc
  • test/parallel
    • test-worker-thread-name.js
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‎doc/api/worker_threads.md‎

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+24Lines changed: 24 additions & 0 deletions
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@@ -721,6 +721,17 @@ An integer identifier for the current thread. On the corresponding worker object
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(if there is any), it is available as [`worker.threadId`][].
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This value is unique for each [`Worker`][] instance inside a single process.
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## `worker.threadName`
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<!-- YAML
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added: REPLACEME
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-->
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* {string|null}
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A string identifier for the current thread or null if the thread is not running.
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On the corresponding worker object (if there is any), it is available as [`worker.threadName`][].
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## `worker.workerData`
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<!-- YAML
@@ -2011,6 +2022,17 @@ An integer identifier for the referenced thread. Inside the worker thread,
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it is available as [`require('node:worker_threads').threadId`][].
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This value is unique for each `Worker` instance inside a single process.
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### `worker.threadName`
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<!-- YAML
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added: REPLACEME
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-->
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* {string|null}
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A string identifier for the referenced thread or null if the thread is not running.
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Inside the worker thread, it is available as [`require('node:worker_threads').threadName`][].
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### `worker.unref()`
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<!-- YAML
@@ -2139,6 +2161,7 @@ thread spawned will spawn another until the application crashes.
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[`require('node:worker_threads').parentPort.postMessage()`]: #workerpostmessagevalue-transferlist
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[`require('node:worker_threads').parentPort`]: #workerparentport
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[`require('node:worker_threads').threadId`]: #workerthreadid
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[`require('node:worker_threads').threadName`]: #workerthreadname
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[`require('node:worker_threads').workerData`]: #workerworkerdata
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[`trace_events`]: tracing.md
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[`v8.getHeapSnapshot()`]: v8.md#v8getheapsnapshotoptions
@@ -2149,6 +2172,7 @@ thread spawned will spawn another until the application crashes.
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[`worker.postMessage()`]: #workerpostmessagevalue-transferlist
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[`worker.terminate()`]: #workerterminate
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[`worker.threadId`]: #workerthreadid_1
2175+
[`worker.threadName`]: #workerthreadname_1
21522176
[async-resource-worker-pool]: async_context.md#using-asyncresource-for-a-worker-thread-pool
21532177
[browser `LockManager`]: https://developer.mozilla.org/en-US/docs/Web/API/LockManager
21542178
[browser `MessagePort`]: https://developer.mozilla.org/en-US/docs/Web/API/MessagePort
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‎lib/internal/worker.js‎

Copy file name to clipboardExpand all lines: lib/internal/worker.js
+8Lines changed: 8 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -72,6 +72,7 @@ const {
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isInternalThread,
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resourceLimits: resourceLimitsRaw,
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threadId,
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threadName,
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Worker: WorkerImpl,
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kMaxYoungGenerationSizeMb,
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kMaxOldGenerationSizeMb,
@@ -433,6 +434,12 @@ class Worker extends EventEmitter {
433434
return this[kHandle].threadId;
434435
}
435436

437+
get threadName() {
438+
if (this[kHandle] === null) return null;
439+
440+
return this[kHandle].threadName;
441+
}
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get stdin() {
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return this[kParentSideStdio].stdin;
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}
@@ -597,6 +604,7 @@ module.exports = {
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getEnvironmentData,
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assignEnvironmentData,
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threadId,
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threadName,
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InternalWorker,
601609
Worker,
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};
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‎lib/worker_threads.js‎

Copy file name to clipboardExpand all lines: lib/worker_threads.js
+2Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -8,6 +8,7 @@ const {
88
setEnvironmentData,
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getEnvironmentData,
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threadId,
11+
threadName,
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Worker,
1213
} = require('internal/worker');
1314

@@ -44,6 +45,7 @@ module.exports = {
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resourceLimits,
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postMessageToThread,
4647
threadId,
48+
threadName,
4749
SHARE_ENV,
4850
Worker,
4951
parentPort: null,
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‎src/api/environment.cc‎

Copy file name to clipboardExpand all lines: src/api/environment.cc
+21-1Lines changed: 21 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -414,6 +414,25 @@ Environment* CreateEnvironment(
414414
EnvironmentFlags::Flags flags,
415415
ThreadId thread_id,
416416
std::unique_ptr<InspectorParentHandle> inspector_parent_handle) {
417+
return CreateEnvironment(isolate_data,
418+
context,
419+
args,
420+
exec_args,
421+
flags,
422+
thread_id,
423+
std::move(inspector_parent_handle),
424+
{});
425+
}
426+
427+
Environment* CreateEnvironment(
428+
IsolateData* isolate_data,
429+
Local<Context> context,
430+
const std::vector<std::string>& args,
431+
const std::vector<std::string>& exec_args,
432+
EnvironmentFlags::Flags flags,
433+
ThreadId thread_id,
434+
std::unique_ptr<InspectorParentHandle> inspector_parent_handle,
435+
std::string_view thread_name) {
417436
Isolate* isolate = isolate_data->isolate();
418437

419438
Isolate::Scope isolate_scope(isolate);
@@ -434,7 +453,8 @@ Environment* CreateEnvironment(
434453
exec_args,
435454
env_snapshot_info,
436455
flags,
437-
thread_id);
456+
thread_id,
457+
thread_name);
438458
CHECK_NOT_NULL(env);
439459

440460
if (use_snapshot) {
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‎src/env-inl.h‎

Copy file name to clipboardExpand all lines: src/env-inl.h
+4Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -703,6 +703,10 @@ inline uint64_t Environment::thread_id() const {
703703
return thread_id_;
704704
}
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inline std::string_view Environment::thread_name() const {
707+
return thread_name_;
708+
}
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706710
inline worker::Worker* Environment::worker_context() const {
707711
return isolate_data()->worker_context();
708712
}
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‎src/env.cc‎

Copy file name to clipboardExpand all lines: src/env.cc
+4-2Lines changed: 4 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -784,7 +784,8 @@ Environment::Environment(IsolateData* isolate_data,
784784
const std::vector<std::string>& exec_args,
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const EnvSerializeInfo* env_info,
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EnvironmentFlags::Flags flags,
787-
ThreadId thread_id)
787+
ThreadId thread_id,
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std::string_view thread_name)
788789
: isolate_(isolate),
789790
external_memory_accounter_(new ExternalMemoryAccounter()),
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isolate_data_(isolate_data),
@@ -811,7 +812,8 @@ Environment::Environment(IsolateData* isolate_data,
811812
flags_(flags),
812813
thread_id_(thread_id.id == static_cast<uint64_t>(-1)
813814
? AllocateEnvironmentThreadId().id
814-
: thread_id.id) {
815+
: thread_id.id),
816+
thread_name_(thread_name) {
815817
if (!is_main_thread()) {
816818
// If this is a Worker thread, we can always safely use the parent's
817819
// Isolate's code cache because of the shared read-only heap.
Collapse file

‎src/env.h‎

Copy file name to clipboardExpand all lines: src/env.h
+4-1Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -660,7 +660,8 @@ class Environment final : public MemoryRetainer {
660660
const std::vector<std::string>& exec_args,
661661
const EnvSerializeInfo* env_info,
662662
EnvironmentFlags::Flags flags,
663-
ThreadId thread_id);
663+
ThreadId thread_id,
664+
std::string_view thread_name = "");
664665
void InitializeMainContext(v8::Local<v8::Context> context,
665666
const EnvSerializeInfo* env_info);
666667
~Environment() override;
@@ -807,6 +808,7 @@ class Environment final : public MemoryRetainer {
807808
inline bool should_start_debug_signal_handler() const;
808809
inline bool no_browser_globals() const;
809810
inline uint64_t thread_id() const;
811+
inline std::string_view thread_name() const;
810812
inline worker::Worker* worker_context() const;
811813
Environment* worker_parent_env() const;
812814
inline void add_sub_worker_context(worker::Worker* context);
@@ -1176,6 +1178,7 @@ class Environment final : public MemoryRetainer {
11761178

11771179
uint64_t flags_;
11781180
uint64_t thread_id_;
1181+
std::string thread_name_;
11791182
std::unordered_set<worker::Worker*> sub_worker_contexts_;
11801183

11811184
#if HAVE_INSPECTOR
Collapse file

‎src/env_properties.h‎

Copy file name to clipboardExpand all lines: src/env_properties.h
+1Lines changed: 1 addition & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -390,6 +390,7 @@
390390
V(table_string, "table") \
391391
V(target_string, "target") \
392392
V(thread_id_string, "threadId") \
393+
V(thread_name_string, "threadName") \
393394
V(ticketkeycallback_string, "onticketkeycallback") \
394395
V(timeout_string, "timeout") \
395396
V(time_to_first_byte_string, "timeToFirstByte") \
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‎src/node.h‎

Copy file name to clipboardExpand all lines: src/node.h
+10Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -730,6 +730,16 @@ NODE_EXTERN Environment* CreateEnvironment(
730730
ThreadId thread_id = {} /* allocates a thread id automatically */,
731731
std::unique_ptr<InspectorParentHandle> inspector_parent_handle = {});
732732

733+
NODE_EXTERN Environment* CreateEnvironment(
734+
IsolateData* isolate_data,
735+
v8::Local<v8::Context> context,
736+
const std::vector<std::string>& args,
737+
const std::vector<std::string>& exec_args,
738+
EnvironmentFlags::Flags flags,
739+
ThreadId thread_id,
740+
std::unique_ptr<InspectorParentHandle> inspector_parent_handle,
741+
std::string_view thread_name);
742+
733743
// Returns a handle that can be passed to `LoadEnvironment()`, making the
734744
// child Environment accessible to the inspector as if it were a Node.js Worker.
735745
// `child_thread_id` can be created using `AllocateEnvironmentThreadId()`
Collapse file

‎src/node_worker.cc‎

Copy file name to clipboardExpand all lines: src/node_worker.cc
+22-1Lines changed: 22 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -33,6 +33,7 @@ using v8::Local;
3333
using v8::Locker;
3434
using v8::Maybe;
3535
using v8::Name;
36+
using v8::NewStringType;
3637
using v8::Null;
3738
using v8::Number;
3839
using v8::Object;
@@ -89,6 +90,15 @@ Worker::Worker(Environment* env,
8990
Number::New(env->isolate(), static_cast<double>(thread_id_.id)))
9091
.Check();
9192

93+
object()
94+
->Set(env->context(),
95+
env->thread_name_string(),
96+
String::NewFromUtf8(env->isolate(),
97+
name_.data(),
98+
NewStringType::kNormal,
99+
name_.size())
100+
.ToLocalChecked())
101+
.Check();
92102
// Without this check, to use the permission model with
93103
// workers (--allow-worker) one would need to pass --allow-inspector as well
94104
if (env->permission()->is_granted(
@@ -365,7 +375,8 @@ void Worker::Run() {
365375
std::move(exec_argv_),
366376
static_cast<EnvironmentFlags::Flags>(environment_flags_),
367377
thread_id_,
368-
std::move(inspector_parent_handle_)));
378+
std::move(inspector_parent_handle_),
379+
name_));
369380
if (is_stopped()) return;
370381
CHECK_NOT_NULL(env_);
371382
env_->set_env_vars(std::move(env_vars_));
@@ -1239,6 +1250,16 @@ void CreateWorkerPerContextProperties(Local<Object> target,
12391250
Number::New(isolate, static_cast<double>(env->thread_id())))
12401251
.Check();
12411252

1253+
target
1254+
->Set(env->context(),
1255+
env->thread_name_string(),
1256+
String::NewFromUtf8(isolate,
1257+
env->thread_name().data(),
1258+
NewStringType::kNormal,
1259+
env->thread_name().size())
1260+
.ToLocalChecked())
1261+
.Check();
1262+
12421263
target
12431264
->Set(env->context(),
12441265
FIXED_ONE_BYTE_STRING(isolate, "isMainThread"),

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