elsewhere as well.

request(), seek() or deliver_xxx() in order to start the data flow.
Autonomous generators must be genuinely autonomous (having their own
process), or otherwise arrange to be called.  TCP does this by
starting the retry timer immediately.

Add some debugging statements.

Add reference-counting to processes.

Add timer_running() test.

Achieved via Perl using:

perl -pi -e 's/pk_buff/io_buffer/g; s/Packet buffer/I\/O buffer/ig; ' \
	-e 's/pkbuff\.h/iobuf.h/g; s/pkb_/iob_/g; s/_pkb/_iob/g; ' \
	-e 's/pkb/iobuf/g; s/PKB/IOB/g;'

output buffering defintions and the like)

connections might break things. Only-sending applications like syslog()
do not need a newdata() handler, so added a check if that handler exists.

ISA 3c509 is currently non-functional, although the EISA (3c509-eisa) and
MCA (3c529) variants should build OK.

None of this code is yet tested.

download

value.

to avoid drops even on slow NICs.

is now gPXE-specific.  (The standard malloc() et al have been in stdlib.h
for a while).

Add free memory counter.

needed now that performance is up.

this saves around 70us per received packet (which is around 50% of the
overall packet processing time).

almost everywhere else.

other protocol won't work at the moment.

Tidy up code

it as a fallback network device rather than an explicitly forced network
device.

Clear routing table entries before re-attempting DHCP.

exception rather than the rule; we may as well keep things clean for other
protocols.