hw/vfio-user/proxy.c

436  * Sent async messages are freed, others are moved to pending queue.
520  * both of which free their message buffer when the reply is sent.
564  * buffers are freed after they're sent.
568  * These are also sent async, but a reply is expected so that
571  * when sent, and are freed when the reply is received.
576  * They also transition from outgoing to pending when sent, but
581  * buffer are empty, the message is sent inline instead of being
627      * Sent - free async, add others to pending  in vfio_user_send_queued()
726  * async send - msg can be queued, but will be freed when sent
764      * Any DMA map/unmap requests sent in the middle  in vfio_user_wait_reqs()
765      * of a memory region transaction were sent nowait.  in vfio_user_wait_reqs()