* lua_modules/fifo: a generic queue & socket wrapper
One occasionally wants a generic fifo, so here's a plausible
implementation that's reasonably flexible in its usage.
One possible consumer of this is a variant of TerryE's two-level fifo
trick currently in the telnetd example. Factor that out to fifosock for
more general use.
* lua_examples/telnet: use factored out fifosock
* lua_modules/http: improve implementation
Switch to fifosock for in-order sending and waiting for everything to be
sent before closing.
Fix header callback by moving the invocation of the handler higher
* fifosock: optimistically cork and delay tx
If we just pushed a little bit of data into a fifosock that had idled,
wait a tick (1 ms) before transmitting. Hopefully, this means that
we let the rest of the system push more data in before we send the first
packet. But in a high-throughput situation, where we are streaming data
without idling the fifo, there won't be any additional delay and we'll
coalesce during operation as usual.
The fifosocktest mocks up enough of tmr for this to run, but assumes
an arbitrarily slow processor. ;)
