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inspector: properly shut down uv_async_t #30612

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inspector: properly shut down uv_async_t #30612

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0193576
inspector: properly shut down uv_async_t
addaleax Nov 19, 2019
25a0659
fixup! inspector: properly shut down uv_async_t
addaleax Nov 27, 2019
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16 changes: 10 additions & 6 deletions src/inspector_agent.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -749,12 +749,6 @@ Agent::Agent(Environment* env)
host_port_(env->inspector_host_port()) {}

Agent::~Agent() {
if (start_io_thread_async.data == this) {
CHECK(start_io_thread_async_initialized.exchange(false));
start_io_thread_async.data = nullptr;
// This is global, will never get freed
uv_close(reinterpret_cast<uv_handle_t*>(&start_io_thread_async), nullptr);
}
}
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bool Agent::Start(const std::string& path,
Expand All @@ -776,6 +770,16 @@ bool Agent::Start(const std::string& path,
start_io_thread_async.data = this;
// Ignore failure, SIGUSR1 won't work, but that should not block node start.
StartDebugSignalHandler();

parent_env_->AddCleanupHook([](void* data) {
Environment* env = static_cast<Environment*>(data);

// This is global, will never get freed
env->CloseHandle(&start_io_thread_async, [](uv_async_t*) {
start_io_thread_async.data = nullptr;
CHECK(start_io_thread_async_initialized.exchange(false));
});
}, parent_env_);
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}

AtExit(parent_env_, [](void* env) {
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