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
* move pubsub of off switch, pass switch into pubsub
* use join on lpstreams
* properly cleanup up failed peers
* fix tests
* fix peertable hasPeerId
* fix tests
* rework sending, remove helpers from pubsubpeer, unify in broadcast
* further split broadcast into send
* use send where appropriate
* use formatIt
* improve trace
Co-authored-by: Giovanni Petrantoni <giovanni@fragcolor.xyz>
* add finegrained timeouts to pubsub
* use 10 millis timeout in tests
* finalization
* revert timeouts
* use `atEof` for reads
* adjust timeouts and use atEof for reads
* use atEof for reads
* set isEof flag
* no backoff for pubsub streams
* temp timer increase, make macos finalize
* don't call `subscribePeer` in libp2p anymore
* more traces
* leak tests
* lower timeouts
* handle exceptions in control message
* don't use `cancelAndWait`
* handle exceptions in helpers
* wip
* don't send empty messages
* check for leaks properly
* don't use cancelAndWait
* don't await subscribption sends
* remove subscrivePeer calls from switch
* trying without the hooks again
* add support for channel timeouts
* tests for channel timeout
* add timeouts to standard switch
* fix mplex init
* cleanup timer on stream close
* add comment for `isConnected`
* move cleanup event
* 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`
* add secureconn constructor
* close in the correct order
* concurent dial lock and track in/out conns better
* make tests pass
* add todo comment
* disconect peers that open too many connections
* wip
* do connection and muxer tracking in one place
* prevent nil pointer in observers
* drop connections when peers is over max
* prevent channel leaks
* don't use closure to handle channel
* 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
* call write until all is written out
* add comments to lpchannel fields
* add an eof flag to signal which end closed
* wip: rework with proper half-closed
* add eof and closed handling
* propagate closes to piped
* call parent close
* moving bufferstream trackers out
* move writeLock to bufferstream
* move writeLock out
* remove unused call
* wip
* rebasing master
* fix mplex tests
* wip
* fix bufferstream after backport
* wip
* rename to differentiate from chronos tracker
* close connection on chronos close
* make reset request asyncCheck
* fix channel cleanup
* misc
* don't use read
* fix backports
* make noise work again
* proper exception handling
* don't reraise just yet
* add convenience templates
* dont double wrap
* use async pragma
* fixes after backporting
* muxer owns connection
* remove on transport close cleanup
* revert back allread
* adding some todos
* read from stream
* inc count before closing
* rebasing master
* rebase master
* use correct exception type
* use try/finally insted of defer
* fix compile in trace mode
* reset channels on mplex close
* make async for proper exception handling
* tryAndWarn msg messes up Exception msg
* misc: comment out tracker dumps
* cleanup mplex tests
* more informative errors
* give CI time to run
* revert change, bacause it causes races
* handle a few exceptions
Some of these are maybe too aggressive, but in return, they'll log
their exception - more refactoring needed to sort this out - right now
we get crashes on unhandled exceptions of unknown origin
* during connection setup
* while closing channels
* while processing pubsubs
* catch exceptions that are raised and don't try to catch exceptions that are not raised
* propagate cancellederror
* one more
* more
* more
* make interop tests less fragile
* Raise expiration time in gossipsub fanout test for slow CI
Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
Co-authored-by: Giovanni Petrantoni <giovanni@fragcolor.xyz>
Jacek Sieka
Eugene Kabanov
Dmitriy Ryajov
Giovanni Petrantoni
Ștefan Talpalaru
Viktor Kirilov
Giovanni Petrantoni