We now keep multiple commands for a json_connection, and an array of
json_streams.
When a command wants to write something, we allocate a new json_stream
at the end of the array.
We always output from the first available json_stream; once that
command has finished, we free that and move to the next. Once all are
done, we wake the reader.
This means we won't read a new command if output is still pending, but
as most commands don't start writing until they're ready to write
everything, we still get command parallelism.
In particular, you can now 'waitinvoice' and 'delinvoice' and it will
work even though the 'waitinvoice' blocks.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We need to keep the remaining buffer, and we need to try to parse it
before we read the next. I first tried keeping it in the object, but
its lifetime is that of the *socket*, which we actually reopen for
every command.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This was hanging sometimes in travis, but actually checking the result
of the commands makes it *always* hang. We remove the waitinvoice
which will not return.
ZmnSCPxj points out that this behavior, introduced in
ce0bd7abd3, is a regression: it would be
nice to be able to cancel a waitinvoice. But that fix is more complex,
and will have to be another PR.
This test will now hang, but it's OK: we're about to fix it!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When developing in regtest or testnet it is really inconvenient to
have to fake traffic and generate blocks just to get estimatesmartfee
to return a valid estimate. This just sets the minfee if bitcoind
doesn't return a valid estimate.
Reported-by: Rene Pickhardt <@renepickhardt>
Signed-off-by: Christian Decker <@cdecker>
generate was deprecated some time ago, so we added the generate_block()
helper. But many calls crept back in, and git master refuses it.
(test_blockchaintrack relied on the return value, so make generate_block
return the list of blocks).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
After Ubuntu 18.10 upgrade, lots of new flake8 warnings.
$ flake8 --version:
3.5.0 (mccabe: 0.6.1, pycodestyle: 2.4.0, pyflakes: 1.6.0) CPython 3.6.7rc1 on Linux
Note it seems that W503 warned about line breaks before binary
operators, and W504 complains about them after. I prefer W504, so
disable W503.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This also highlights the danger of searching the logs: that error
appeared previously in the logs, so we didn't notice that the actual
withdraw call gave a different error.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
During tests, this is half our log! And Travis truncates it if we get
a failure in test_restart_many_payments.
Interestingly, test_logging had a bug which relied on this spam :)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Travis failures:
valgrind: m_scheduler/sema.c:104 (vgModuleLocal_sema_down): Assertion 'sema->owner_lwpid != lwpid' failed.
host stacktrace:
==1296== at 0x38083F48: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==1296== by 0x38084064: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==1296== by 0x380841F1: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==1296== by 0x38135DAE: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==1296== by 0x380D328D: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==1296== by 0x3809A4AC: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==1296== by 0x3809AE43: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
==1296== by 0x380988CF: ??? (in /usr/lib/valgrind/memcheck-amd64-linux)
sched status:
running_tid=0
Thread 1: status = VgTs_WaitSys (lwpid 1296)
==1296== at 0x5729730: __poll_nocancel (syscall-template.S:84)
==1296== by 0x4348DF: daemon_poll (daemon.c:78)
==1296== by 0x4169E7: io_poll_lightningd (lightningd.c:543)
==1296== by 0x471ECD: io_loop (poll.c:282)
==1296== by 0x416E06: main (lightningd.c:744)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The help command now adds command usage to its output by calling each
command handler in CMD_USAGE mode.
Instead of seeing, for example:
decodepay
Decode {bolt11}, using {description} if necessary
we see:
decodepay bolt11 [description]
Decode {bolt11}, using {description} if necessary
Signed-off-by: Mark Beckwith <wythe@intrig.com>
This is a simple reverse proxy that `bitcoin-cli` can talk to when invoked by
`lightningd`. It allows us to trace `bitcoin-cli` calls, and intercept calls to
mock the replies, better than the current bash-script based method.
It's probably unnecessary to have this weird way of injecting results
now we have explicit feerate args.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We could refine this later (based on existing wallet, for example), but
this gives some estimate.
[ Rename onchain_estimates -> onchain_fee_estimates Suggested-by: @SimonVrouwe ]
[ Factor of 1000 fix Reported-by: @SimonVrouwe ]
Suggested-by: @molxyz
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We don't know what our peer is doing, but if we see those values, maybe
they did too, and for longer. And add the min/max acceptable values
into our JSON API.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is useful mainly in the case where bitcoind is not giving estimates,
but can also be used to bias results if you want.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If feerates change, L2 sends L3 a commit for that, which causes us to
fail the assert (which says we won't send a commitment_signed).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We don't respond to fee changes until we're locked in: make sure we catch
up at that point.
Note that we use NORMAL fees during opening, but IMMEDIATE after, so
this often sends a fee update. The tests which break, we set those
feerates to be equal.
This (sometimes) changes the behavior of test_permfail, as we now
get an immediate commit, so that is fixed too so we always wait for
that to complete.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We're going to use it to override specific commands. It's non-valgrinded
already since we use '--trace-children-skip=*bitcoin-cli*' so the overhead
should be minimal.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Waiting for three node_announcments isn't always enough, since l2 can
publish two of them (an independent bug). Do the more Right Thing and
just wait for 30 seconds of no input...
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1. connect convenience variable for improved readabilty.
2. a comment explaining that timer is on channel, not HTLC.
3. use modern python style in test_htlc_send_timeout
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Now sending a ping makes sense: it should force the other end to send
a reply, unblocking the commitment process.
Note that rather than waiting for a reply, we're actually spinning on
a 100ms loop in this case. But it's simple and it works.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Currently, if we don't realize a TCP connection is down, we almost
certainly don't find out until *after* we're sent the
commitment_signed message, in which case we cannot fail the incoming
HTLC.
This test demonstrates that. Note the 30 second sleep: we should really
run Travis tests in parallel!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The next patches get better at reconecting, so if we use dev-allow-localhost
nodes can often find each other and reconnect before shutting down; only
use that option where we actually need it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1. If the IPv6 address was public, that changed the wireaddr and thus the ipv4 bind
would not be to a wildcard and would fail.
2. Binding two fds to the same port on both wildcard IPv4 and IPv6 succeeds; we only
fail when we try to listen, so allow error at this point.
For some reason this triggered on my digital ocean machine.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
