Commit Graph

18 Commits

Author SHA1 Message Date
Dmitriy Ryajov 92fa4110c1
Rework transport to use chronos accept (#420)
* rework transport to use the new accept api

* use the new chronos primits

* fixup tests to use the new transport api

* handle all exceptions in upgradeIncoming

* master merge

* add multiaddress exception type

* raise appropriate exception on invalida address

* allow retrying on TransportTooManyError

* adding TODO

* wip

* merge master

* add sleep if nil is returned

* accept loop handles all exceptions

* avoid issues with tray/except/finally

* make consistent with master

* cleanup accept loop

* logging

* Update libp2p/transports/tcptransport.nim

Co-authored-by: Jacek Sieka <jacek@status.im>

* use Direction enum instead of initiator flag

* use consistent import style

* remove experimental `closeWithEOF()`

Co-authored-by: Jacek Sieka <jacek@status.im>
2020-11-18 20:06:42 -06:00
Jacek Sieka 74acd0a33a
fix channels not being reset (#439)
* fix channels not being reset

silly for loop..

* allow only one concurrent read
* fix mplex test race condition
* add some bufferstream eof tests

* deadlock, lost data and hung channel fixes

* prevent concurrent `reset` calls
* reset LPChannel when read is cancelled (since data is lost)
* ensure there's one, and one only, 0-byte readOnce on EOF
* ensure that all data is returned before EOF is returned
* keep running activity monitor for half-closed channels (or they never
get closed)
2020-11-17 08:59:25 -06:00
Dmitriy Ryajov 3956f3fd69
make sure all streams are tracked (#422)
* make sure all streams are tracked

* revert unnecesary change
2020-11-04 21:52:54 -06:00
Dmitriy Ryajov 43a77e60a1
split stream counts by direction (#418) 2020-11-01 16:23:26 -06:00
Jacek Sieka 03639f1446
Revert "Channel leaks (#413)" (#417)
This reverts commit 1de1d49223.
2020-11-01 14:49:25 -06:00
Dmitriy Ryajov 1de1d49223
Channel leaks (#413)
* break stream tracking by type

* use closeWithEOF to await wrapped stream

* fix cancelation leaks

* fix channel leaks

* logging

* use close monitor and always call closeUnderlying

* don't use closeWithEOF

* removing close monitor

* logging
2020-10-27 11:21:03 -06:00
Jacek Sieka 49a12e619d
channel close race and deadlock fixes (#368)
* channel close race and deadlock fixes

* remove send lock, write chunks in one go
* push some of half-closed implementation to BufferStream
* fix some hangs where LPChannel readers and writers would not always
wake up
* simplify lazy channels
* fix close happening more than once in some orderings
* reenable connection tracking tests
* close channels first on mplex close such that consumers can read bytes

A notable difference is that BufferedStream is no longer considered EOF
until someone has actually read the EOF marker.

* docs, simplification
2020-09-21 19:48:19 +02:00
Jacek Sieka 96d4c44fec
refactor bufferstream to use a queue (#346)
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
2020-09-10 08:19:13 +02:00
Jacek Sieka 5b347adf58
logging fixes and small cleanups (#361)
In particular, allow longer multistream select reads
2020-09-09 19:12:08 +02:00
Jacek Sieka c1856fda53
simplify and unify logging (#353)
* use short format for logging peerid
* log peerid:oid for connections
2020-09-06 10:31:47 +02:00
Jacek Sieka ab864fc747
logging cleanups and small fixes (#331) 2020-08-15 21:50:31 +02:00
Dmitriy Ryajov d1f1e1b31e
add missing mplex half closed test (#326) 2020-08-12 07:23:49 +02:00
Dmitriy Ryajov 2325692f55
Fix half closed (#324)
* don't call `close` in `remoteClose`

* make sure timeout are properly propagted

* fix tests

* adding remote close write test
2020-08-10 16:17:11 -06:00
Dmitriy Ryajov cf2b42b914
Moving idle timeout to Connection to enable across all connection streams (#307)
* move idle timeout logic to connection

* more informative logs

* more informative logs
2020-08-04 07:22:05 -06:00
Jacek Sieka e655a510cd
misc cleanups (#303) 2020-08-02 12:22:49 +02:00
Dmitriy Ryajov 0348773ec9
Connection manager (#277)
* splitting out connection management

* wip

* wip conn mngr tests

* set peerinfo in contructor

* comments and documentation

* tests

* wip

* add `None` to detect untagged connections

* use `PeerID` to index connections

* fix tests

* remove useless equality
2020-07-17 09:36:48 -06:00
Dmitriy Ryajov 7a95f1844b
Concurrent dials (#238)
* 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
2020-06-24 09:08:44 -06:00
Dmitriy Ryajov 5b28e8c488
Cleanup lpstream, Connection and BufferStream (#228)
* 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
2020-06-19 11:29:43 -06:00