El 20/08/2011 0:54, David Byron escribió:
I've got my machine (Win 7) into a state where using a message queue results in a hang. More specifically, calls to:
scoped_lock<interprocess_mutex> lock(p_hdr->m_mutex);
hang forever.
As a bit more background, there's a message queue that holds up to 5 x 1024 byte messages, and I believe currently has 2. I'm having a hard time verifying that because calls to get_num_msg() hang trying on calls like the one above, but that's what I see when I look in c:/ProgramData/boost_interprocess/20110816195406.550541/CliIPC.
I have feeling what happened is that some process that was using the message queue got terminated while holding the p_hdr->m_mutex. Does anyone have any suggestions for recovering from this?
I'm using version 1.47.
For now, the only thing you can do is using a timed lock, It's not easy to support robust mutexes when using emulated process-shared resources. Ion