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I’m looking at how to use the esl_recv_event function in esl.c and the docs are missing some details. Could someone tell me:

<![if !supportLists]>1. <![endif]>Do I have to lock a mutex before accessing this function (since it dequeues an event)
<![if !supportLists]>2. <![endif]>The third parameter is a ptr to a ptr to a struct. So, do I have to allocate a struct before calling (to get the data)? Or will the lib allocate the struct and I have to free it?

Comments from esl.c:

/*!
\brief Poll the handle's socket until an event is received or a connection error occurs
\param handle Handle to poll
\param check_q If set to 1, will check the handle queue (handle->race_event) and return the last event from it
\param[out] save_event If this is not NULL, will return the event received
*/
ESL_DECLARE(esl_status_t) esl_recv_event(esl_handle_t *handle, int check_q, esl_event_t **save_event);
/*!