coroutine questions

[rbro]

I had a few questions about coroutines I was hoping to get help with:

1. I believe that the PHP MongoDB library (https://github.com/mongodb/mongo-php-driver) does not work with coroutines and causes them to block. Is that correct?

2. Is there a way to test/benchmark if other libraries in PHP do not work with coroutines either? I use a few other 3rd party extensions that I'm not sure about, so I was hoping there was a way I could write a script with them to determine if they work with coroutines or not.

3. Are there ways to call the PHP MongoDB library from within a coroutine such as task workers? If yes, could you point me to an example of a http server in swoole that calls a task worker upon each request and waits for the result to send back to the user?

Thank you for your help.

[matyhtf]

The MongoDB PHP extension contains roughly 300,000 lines of code—about three times the size of Swoole’s—and follows a rich‑client design with a large amount of logic implemented on the client side.

By contrast, other databases often need only a small, fixed set of PDO APIs for executing SQL, which makes adapting them to asynchronous, non‑blocking I/O relatively straightforward.

As far as I know, all MongoDB client libraries across programming languages are maintained by MongoDB itself; there are no third‑party client drivers.

If asynchronous support is required, the request should be taken up with the MongoDB team for them to implement.