Question 1

How to integrate rotor with Boost.Asio for network applications?

Accepted Answer

Enable the ROTOR_BUILD_ASIO CMake option, include the appropriate headers, and create a supervisor tied to an ASIO io_context. Examples like 'examples/boost-asio/ping-pong-single-simple' in the repository demonstrate this integration step-by-step.

Question 2

rotor vs SObjectizer: which C++ actor framework is better?

Accepted Answer

rotor is more minimalistic and event-loop agnostic, ideal for GUI or custom loop integration with supervisor hierarchies, while SObjectizer offers richer built-in features but may have more overhead. Choose rotor for flexibility or SObjectizer for a more comprehensive out-of-the-box solution.

Question 3

What are the performance benchmarks for rotor's message passing?

Accepted Answer

rotor benchmarks show high throughput, such as ~31.6M inter-thread messages per second on an Intel Core i7, as detailed in the README's performance table. These numbers make it competitive for low-latency applications requiring efficient concurrency.

Question 4

How to handle actor failures and restarts in rotor?

Accepted Answer

Use supervisor trees where supervisors monitor child actors; on failure, they can escalate, shutdown, or spawn new instances based on policies. Examples like 'examples/thread/ping-pong-spawner' illustrate this fault-tolerant approach.

Question 5

Is rotor suitable for embedded systems with limited resources?

Accepted Answer

Yes, rotor has a minimalistic core and a lightweight variant called rotor-light specifically designed for embedded applications, allowing actor-based concurrency in resource-constrained environments while maintaining reliability.

Question 6

How to set up a simple ping-pong example with rotor?

Accepted Answer

Build examples like 'examples/thread/ping-pong-thread.cpp' using CMake, enable the thread backend with ROTOR_BUILD_THREAD, and run the executable to see basic actor creation and messaging in action, as guided by the repository's build instructions.

Question 7

Does rotor support request-response patterns with cancellation?

Accepted Answer

Yes, rotor supports asynchronous request-response messaging with cancellation capabilities, as mentioned in the features and detailed in the linked blog post on request-response patterns, ensuring reliable message exchanges.

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