This change modifies how the backpressure algorithm in bufferstream
works - in particular, instead of working byte-by-byte, it will now work
seq-by-seq.
When data arrives, it usually does so in packets - in the current
bufferstream, the packet is read then split into bytes which are fed one
by one to the bufferstream. On the reading side, the bytes are popped of
the bufferstream, again byte by byte, to satisfy `readOnce` requests -
this introduces a lot of synchronization traffic because the checks for
full buffer and for async event handling must be done for every byte.
In this PR, a queue of length 1 is used instead - this means there will
at most exist one "packet" in `pushTo`, one in the queue and one in the
slush buffer that is used to store incomplete reads.
* avoid byte-by-byte copy to buffer, with synchronization in-between
* reuse AsyncQueue synchronization logic instead of rolling own
* avoid writeHandler callback - implement `write` method instead
* simplify EOF signalling by only setting EOF flag in queue reader (and
reset)
* remove BufferStream pipes (unused)
* fixes drainBuffer deadlock when drain is called from within read loop
and thus blocks draining
* fix lpchannel init order
* consolidate reading in lpstream
* remove debug echo
* throw if not enough bytes where read
* tune log level
* set eof flag
* test readExactly to fail on not enough bytes
* count published messages
* don't call `switch.dial` in `subscribeToPeer`
* don't use delegation in connection
* move connection out to own file
* don't breakout on reset
* make sure to call close on secured conn
* add lpstream tracing
* don't breackdown by conn id
* fix import
* remove unused lable
* reset connection on exception
* add additional metrics for skipped messages
* check for nil in secure.close
* Add chronos trackers and used them to sanitize resource disposal
* Chronos trackers for transport tests wip
* No more chronos leaks in testtransport
* Make tcp transport and test more robust when closing
* Test async leaking tracking wip
* Fix a regression in wire connect
* Add chronos trackers to more tests and sanitize resource closure
* Wip fixing floodsub tests
* Floodsub wip
* Made floodsub basically deterministic, hit a nim bug with captures tho
* Wrap up floodsub tests refactor
* Wrapping up
* Add allFuturesThrowing utility
* Fix missing allFuturesThrowing in noise tests!
* Make tests green
* attempt fixing gossipsub failing cases
* Make sure to check also fanout in waitSub
* More verbose traces
* Gossipsub test improvments
* Refactor TcpTransport remove asyncCheck
* Add Connection trackers
* Add stricter connection tracking, wip mplex fix
* More asynccheck removal, in order to avoid connection leaks
* bump chronicles requirement
* Enable tracker dump to check CI output
* Wait for more futures in testmplex
* Remove tracker dump messages
* add tryAndWarn utility, fix mplex issue with go interop
* All allFuturesThrowing to directchat too
* make sure to cleanup on transport close
Jacek Sieka
Dmitriy Ryajov
Giovanni Petrantoni
Ștefan Talpalaru
cheatfate