I am trying to use this driver in a multi-threading application. I am using client pool and make sure that using a cursor is always done in the same thread.

However, if the first use is always successful (each are begining by mongoc_init(); and treminated by mongoc_cleanup() following ones frequently crash, always when destroying something. It says something about heap corruption or writing past the heap limit.

I have been able to avoid this by providing my own memory functions and resetting the vtable.

Is there another way to avoid these problems?