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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. |
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.. | ||
if_plip.c | ||
immio.c | ||
lpbb.c | ||
lpt.c | ||
lpt.h | ||
lptio.h | ||
pcfclock.c | ||
ppb_1284.c | ||
ppb_1284.h | ||
ppb_base.c | ||
ppb_msq.c | ||
ppb_msq.h | ||
ppbconf.c | ||
ppbconf.h | ||
ppbio.h | ||
ppbus_if.m | ||
ppi.c | ||
ppi.h | ||
pps.c | ||
vpo.c | ||
vpoio.c | ||
vpoio.h |