freebsd-src/sys/netnatm
Jonathan Lemon df5e198723 Lock down the network interface queues. The queue mutex must be obtained
before adding/removing packets from the queue.  Also, the if_obytes and
if_omcasts fields should only be manipulated under protection of the mutex.

IF_ENQUEUE, IF_PREPEND, and IF_DEQUEUE perform all necessary locking on
the queue.  An IF_LOCK macro is provided, as well as the old (mutex-less)
versions of the macros in the form _IF_ENQUEUE, _IF_QFULL, for code which
needs them, but their use is discouraged.

Two new macros are introduced: IF_DRAIN() to drain a queue, and IF_HANDOFF,
which takes care of locking/enqueue, and also statistics updating/start
if necessary.
2000-11-25 07:35:38 +00:00
..
natm_pcb.c
natm_proto.c Lock down the network interface queues. The queue mutex must be obtained 2000-11-25 07:35:38 +00:00
natm.c
natm.h Back out the previous change to the queue(3) interface. 2000-05-26 02:09:24 +00:00