* Don't do a 'passive flush' while there are already outbound messages
unacked.
* Show the reseed link if up to 10 peers profiles are active (thanks
dburton!)
* Fix the recently broken SAM bridge (duh)
* Add a new pair of SAM apps - net.i2p.sam.client.SAMStreamSink and
net.i2p.sam.client.SAMStreamSend, mirroring the streaming lib's
StreamSink and StreamSend apps for transferring files.
* Make the passive flush timer fire more frequently.
* Toss in a small pool of threads (3) to execute the events queued up with
the SimpleTimer, as we do currently see the occational event
notification spiking up to a second or so.
* Implement a SAM client API in java, useful for event based streaming (or
for testing the SAM bridge)
* Added support to shut down the SAM bridge on OOM (useful if the SAM
bridge is being run outside of the router).
* Include the SAM test code in the sam.jar
* Remove an irrelevent warning message from SAM, which was caused by
perfectly normal operation due to a session being closed.
* Removed some unnecessary synchronization in the streaming lib's
PacketQueue
* More quickly clean up the memory used by the streaming lib by
immediately killing each packet's resend job as soon as it is ACKed (or
cancelled), so that there are no longer any valid pointers to the
(potentially 32KB) packet.
* Fixed the timestamps dumped to stdout when debugging the PacketHandler.
* Drop packets that would expand our inbound window beyond our maximum
buffer size (default 32 messages)
* Always read the ACK/NACK data from the verified packets received, even
if we are going to drop them
* Always adjust the window when there are messages ACKed, though do not
change its size except as before.
* Streamlined some synchronization in the router's I2CP handling
* Streamlined some memory allocation in the SAM bridge
* Default the streaming lib to disconnect on inactivity, rather than send
an empty message.
this still doesnt get the BT to where it needs to be, or fix the timeout problem,
but i dont like having so many commits outstanding and these updates are sound
2004-12-01 jrandom
* Strip out any of the Accept-* HTTP header lines, and always make sure to
include the forged User-agent header.
* Adjust the default read timeout on the eepproxy to 60s, unless
overridden.
* Minor tweak on stream shutdown.
* Render the burst rate fields on /config.jsp properly (thanks ugha!)
* Build in a simple timeout to flush data queued into the I2PSocket but
not yet flushed.
* Don't explicitly flush after each SAM stream write, but leave it up to
the [nonblocking] passive flush.
* Don't whine about 10-99 connection events occurring in a second
* Don't wait for completion of packets that will not be ACKed (duh)
* Adjust the congestion window, even if the packet was resent (duh)
* Make sure to wake up any blocking read()'s when the MessageInputStream
is close()ed (duh)
* Never wait more than the disconnect timeout for a write to complete
* Reduced contention for local client delivery
* Drop the new code that munges the wrapper.config. Instead, updates that
need to change it will include their own wrapper.config in the
i2pupdate.zip, overwriting the existing file. If the file
"wrapper.config.updated" is included, it is deleted at first opportunity
and the router shut down, displaying a notice that the router must be
started again cleanly to allow the changes to the wrapper.config to take
effect.
* Properly stop accept()ing I2PSocket connections if we close down the
session (duh).
* Make sure we cancel any outstanding Packets in flight when a connection
is terminated (thanks susi!)
* Split up the I2PTunnel closing a little further.
* Some cleanup and bugfixes for the IP address detection code where we
only consider connections that have actually sent and received messages
recently as active, rather than the mere presence of a TCP socket as
activity.
* Fix for a fast loop caused by a race in the new streaming library (thanks
DrWoo, frontier, pwk_, and thetower!)
* Minor updates to the SimpleTimer and Connection to help track down a
high CPU usage problem (dumping debug info to stdout/wrapper.log if too
many events/tasks fire in a second)
* Minor fixes for races on client disconnects (causing NPEs)
if you want to get this data and you're running outside the router, just toss on a
"-Dstat.logFilters=* -Dstat.logFile=proxy.stats" to the java command line. the resulting
file can be parsed w/ java -cp lib/i2p.jar net.i2p.stat.StatLogSplitter proxy.stats, then fed
into gnuplot or whatever
further and cancel all of the tags we're using for that peer so that we can react to their
potential restart / tag loss quicker.
* use the minimum resend delay as the base to be exponentiated if our RTT is too low
(so we resend less)
* dont be such a wuss when flushing a closed stream
* add new back-off logic to reduce payload resends during transient
lag - only let one packet be resent at a time, even if the window size
allows it (and the packet timers request it). this should make
congestion less painful, and reduce the overall number of messages
resent (as the SACKs for the one packet actively resent should clarify
what made it through)
* make sure we ack duplicate messages received (if we aren't already doing so)
* implement a choke on the local buffer, in case we receive data faster than its
removed from the i2psocket's MessageInputStream (handle via packet drop and
explicit congestion notification)
* Fix for a long standing synchronization bug in the JobQueue (and added
some kooky flags to make sure it stays dead)
* Update the ministreaming lib to force mode=guaranteed if the default
lib is used, and mode=best_effort for all other libs.
* Fixed up the configuration overrides for the streaming socket lib
integration so that it properly honors env settings.
* More memory usage streamlining (last major revamp for now, i promise)
* Increase the tunnel test timeout rapidly if our tunnels are failing.
* Honor message expirations for some tunnel jobs that were prematurely
expired.
* Streamline memory usage with temporary object caches and more efficient
serialization for SHA256 calculation, logging, and both I2CP and I2NP
message handling.
* Fix some situations where we forward messages too eagerly. For a
request at the tunnel endpoint, if the tunnel is inbound and the target
is remote, honor the message by tunnel routing the data rather than
sending it directly to the requested location.
* Fix a strange race condition on i2cp client disconnect.
* win98 startup fixes (thanks tester-1 and ardvark!)
* include build scripts for the new streaming lib (which is NOT ready
for use yet, but you can hack around with it)
(enjoy, duck)
packets through that point have been ACKed, throwing an
InterruptedIOException if there was a writeTimeout or an IOException
if the con failed
* revamped the ack/nack field settings to ack as much as possible
* handle some strange timeout/resend errors on connection
* pass 1/2rtt as the packet 'optional delay' field, and use that to
schedule the ack time (the 'last' messages in a window set the
optional delay to 0, asking for immediate ack of all received)
* increase the optional delay to 2 bytes (#ms to delay)
* inject random failures and delays if configured to do so in
PacketHandler.choke
* fix up the window size adjustment (increment on ack, /= 2 on resend)
* use the highest RTT in the new RTT calculation so that we fit more
in (via SACK)
* fix up the SACK handling (duh)
* revise the resend time calculation
* properly close the source file in StreamSinkSend
* always adjust the rtt on ack, not just for packets with 1 send
* handle dup SYN gracefully
* revamp the default connection options
* logging
* immediately send an ack on receiving a duplicate payload message
(unless we've sent one within the last RTT)
* only adjust the RTT when there have been no resends
* added some (disabled) throttles - randomly injecting delays on
received packets, as well as randomly dropping them
* logging
