Dear all, I'm trying to access a TCP socket from multiple threads. One thread is listening for incoming data while multiple threads are submitting data.
I've learned and understood from other postings that lwIP's sockets are not thread safe, so I protected the calls to the send routine with a mutex. The receiving thread, however, blocks waiting for incoming data so I can't use the mutex for that. But without protection, the application crashes if there is a send call from another thread while a receive call is active. I resolved the issue by blocking the receive thread using an unprotected call to select(), waiting for incoming data. Then, after the thread has unblocked, doing a protected call to recv() that fetches the data from lwIP. What do you think about that? It seems to work for me but is it safe? Or might the select() call also interfere with send() in a way that makes the application crash at some point? Any advice is appreciated. Thanks, Steffen _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
