How to deal with bufferevent pointer when used externally? about libevent HOT 5 CLOSED

Take a look at event_use_pthreads and BEV_OPT_THREADSAFE.

from libevent.

please

from libevent.

Thank you for your answer. I have added what you said, but it doesn't seem to meet my needs. My code is like this:
bufferevent *buffEvent = bufferevent_socket_new...
....
m_buffEvent = buffEvent

When I need to send data, I directly use bufferevent_write(m_buffEvent, data, dataLen) in another thread to actively send data to the client. Assume that in the thread of event_base_dispatch, errnocb is called, and bufferevent_free is called, reference counting When it is 0, the memory is released, and at this time, m_buffEvent is accessed in another thread.

It seems like what you said doesn't work in this case?

from libevent.

After calling bufferevent_free you should not use the bufferevent, it is your responsibility.

I would recommend you to wrap bufferent * into shared_ptr with custom deleter as bufferevent_free and this will work like a charm.

from libevent.

okay, thank you very much. I understand what you mean!

from libevent.