How to block an async method till completion

Question

I have a fire_and_forget method,

fire_and_forget DeviceInfo::Connect()
{

// Pair
DevicePairingResult result = co_await GetDevice().Pairing().PairAsync();

// Connect
m_BluetoothLEDevice = co_await BluetoothLEDevice::FromIdAsync(GetId());

}

I need to come out from this fire_and_forget function after completing all the async methods inside

Please suggest some ideas

Answer 1

Hi,

I suggest you could try to construct a mutex object, by std::mutex, and then call the member function lock() to lock the mutex, call the member function unlock() to unlock it. You could also try to use lock_guard Class.

And then you could use the condition_variable class to wait for an event when you have a mutex of type unique_lock<mutex>. You only need to call wait and notify_one.

Best Regards,

Jeanine

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