Sometimes we could get into a situation in which we knew the channel
but couldn't find it via the short_channel_id. That'd result in a
replacement which triggered an assert.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
The use of status_failed() requires a stubs update, which fails
with unnamed parameters, so tweak the status.h header as well.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If we side-load a channel, using local-add or the removed JSON-RPC
call, then we could end up in a situation in which a channel is
present, but has no associated channel_announcement. The presence of
the channel_announcement was used to identify new channels, so this
could lead to channels always being considered new. This then caused
the announcements being added to the queue always, resulting in
channel_updates preceeding the announcement.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
We should never be evicting channel_announcements because a) they were
deeply buried and should not change the short_channel_id/tag, b) they
are static.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
It's just a sha256_double, but importantly when we convert it to a
string (in type_to_string, which is used in logging) we use
bitcoin_blkid_to_hex() so it's reversed as people expect.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If channel_announce is rebroadcast, it should replace the existing one
in-place. We currently only do this if we start from the unsigned one
and replace it with the signed one when we hit 6 confirms.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This would fail, and we'd free an uninitialized pointer.
Also, add us to .gitignore and clear up a comment.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This adds the channel from us to the remote node and activates it with
our local parameters.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Couldn't find a good place to put these messages, we probably want to
do the same capability based request routing that we did for the HSM,
but for now this just defines the message in the master messages file.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
This check is expensive, so just restrict msatoshi going in, as well
as turn off channels charging more than 24x fee.
# 1M nodes:
$ /gossipd/test/run-bench-find_route 1000000 1 > /tmp/out
=> 44164 msec
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We can't get them; channel_update doesn't support it.
# 1M nodes:
$ /gossipd/test/run-bench-find_route 1000000 1 > /tmp/out
=> 47677 msec
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Compile this, and link from perfme-start and perfme-stop in your path:
/* Simple wrapper to allow a program to perf itself.
* Copyright Rusty Russell, Blockstream 2015.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* See <http://www.gnu.org/licenses/>.
*/
#include <ccan/err/err.h>
#include <ccan/str/str.h>
#include <sys/types.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <stdio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#define PERFME_PREFIX "/tmp/perfme."
#define MAX_ENV_ARGS 20
static void write_noerr(int fd)
{
int e = errno;
if (write(fd, "", 1) != 1)
/* Complain about warn_unused_result fascist bullshit */ ;
errno = e;
}
/* Child. Setup pid, run perf. */
static void exec_perf(int pfd[2], const char *perfpid, const char *perfout,
pid_t parent)
{
char pid[STR_MAX_CHARS(pid_t)];
int i, fd;
char *cmd, *args[MAX_ENV_ARGS + 5];
fd = open(perfpid, O_CREAT|O_EXCL|O_WRONLY, 0400);
if (fd < 0) {
write_noerr(pfd[1]);
err(1, "opening %s", perfpid);
}
sprintf(pid, "%u", getpid());
if (write(fd, pid, strlen(pid)) != strlen(pid)) {
write_noerr(pfd[1]);
err(1, "writing to %s", perfpid);
}
close(fd);
sprintf(pid, "%u", parent);
cmd = getenv("PERFME");
if (!cmd)
cmd = "perf record --call-graph dwarf -q";
cmd = strdup(cmd);
for (i = 0; i < MAX_ENV_ARGS; i++) {
args[i] = strtok(i == 0 ? cmd : NULL, " ");
if (!args[i])
break;
}
if (i == 0 || i == MAX_ENV_ARGS)
errx(1, "Too %s args in $PERFME: '%s'",
i ? "many" : "few", getenv("PERFME"));
args[i++] = "-p";
args[i++] = pid;
args[i++] = "-o";
args[i++] = (char *)perfout;
args[i++] = NULL;
execvp(args[0], args);
write_noerr(pfd[1]);
err(1, "Execing %s", args[0]);
}
int main(int argc, char *argv[])
{
pid_t parent = argv[1] ? atoi(argv[1]) : getppid();
char perfout[sizeof(PERFME_PREFIX) + STR_MAX_CHARS(parent)];
char perfpid[sizeof(perfout) + sizeof(".pid")];
err_set_progname(argv[0]);
sprintf(perfpid, PERFME_PREFIX "%u.pid", parent);
if (strends(argv[0], "perfme-stop")) {
char pid[STR_MAX_CHARS(pid_t)];
int r, fd = open(perfpid, O_RDONLY);
if (fd < 0)
err(1, "Opening %s", perfpid);
r = read(fd, pid, sizeof(pid) - 1);
if (r < 0)
err(1, "Reading %s", perfpid);
pid[r] = 0;
if (unlink(perfpid) != 0)
warn("Unlinking %s", perfpid);
if (atoi(pid) <= 0)
errx(1, "Invalid pid '%s' from %s", pid, perfpid);
if (kill(atoi(pid), SIGTERM) != 0)
err(1, "Stopping %s", pid);
exit(0);
} else if (strends(argv[0], "perfme-start")) {
int pfd[2];
sprintf(perfout, PERFME_PREFIX "%u", parent);
/* Use pipe to detect successful exec. */
if (pipe(pfd) != 0)
err(1, "Creating pipe");
switch (fork()) {
case 0:
close(pfd[0]);
fcntl(pfd[1], F_SETFD,
fcntl(pfd[1], F_GETFD)|FD_CLOEXEC);
exec_perf(pfd, perfpid, perfout, parent);
case -1:
err(1, "Forking");
default:
/* Parent. Wait for child. */
close(pfd[1]);
if (read(pfd[0], perfpid, 1) == 1)
exit(1);
fprintf(stderr, "Perf recording into %s\n", perfout);
sleep(1);
exit(0);
}
}
errx(1, "Unknown name: am I perfme-start or perfme-stop?");
}
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When gossipd sends a message, have a gossip_index. When it gets back a
peer, the current gossip_index is included, so it can know exactly where
it's up to.
Most of this is mechanical plumbing through openingd, channeld and closingd,
even though openingd and closingd don't (currently) read gossip, so their
gossip_index will be unchanged.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
All peers come from gossipd, and maintain an fd to talk to it. Sometimes
we hand the peer back, but to avoid a race, we always recreated it.
The race was that a daemon closed the gossip_fd, which made gossipd
forget the peer, then master handed the peer back to gossipd. We stop
the race by never closing the gossipfd, but hand it back to gossipd
for closing.
Now gossipd has to accept two fds, but the handling of peers is far
clearer.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We should also go through and use consistent nomenclature on functions which
are used with a local peer ("lpeer_xxx"?) and those with a remote peer
("rpeer_xxx"?) but this is minimal.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This will later be used to determine whether or not we should announce
ourselves as a node.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Test objects must be added to $(ALL_OBJS) so they correctly depend on
CCAN headers etc.
Also, each test in a subdir must depend on headers and src in the parent
directory, as it will often #include them directly.
Reported-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And nail "make check-source" to that specific version (which is a commit id,
not a branch name, so needs a different syntax for git).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And we report these through the getpeers JSON RPC again (carefully: in
our reconnect tests we can get duplicates which this patch now filters
out).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
In future it will have TOR support, so the name will be awkward.
We collect the to/fromwire functions in common/wireaddr.c, and the
parsing functions in lightningd/netaddress.c.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
practicalswift
Christian Decker
Rusty Russell