use Object::Remote::CodeContainer;
use Object::Remote::GlobProxy;
use Object::Remote::GlobContainer;
+use Object::Remote::Logging qw (:log :dlog);
use Object::Remote;
use Symbol;
use IO::Handle;
use Moo;
our $DEBUG = !!$ENV{OBJECT_REMOTE_DEBUG};
+#numbering each connection allows it to be
+#tracked along with file handles in
+#the logs
+BEGIN { our $NEXT_CONNECTION_ID = 0 }
+has _id => ( is => 'ro', required => 1, default => sub { our $NEXT_CONNECTION_ID++ } );
has send_to_fh => (
is => 'ro', required => 1,
- trigger => sub { $_[1]->autoflush(1) },
+ trigger => sub {
+ my $self = $_[0];
+ $_[1]->autoflush(1);
+ Dlog_trace { my $id = $self->_id; "connection had send_to_fh set to $_" } $_[1];
+ },
);
has read_channel => (
is => 'ro', required => 1,
trigger => sub {
my ($self, $ch) = @_;
+ Dlog_trace { my $id = $self->_id; "trigger for read_channel has been invoked for connection $id; file handle is " } $ch->fh;
weaken($self);
$ch->on_line_call(sub { $self->_receive(@_) });
$ch->on_close_call(sub { $self->on_close->done(@_) });
has on_close => (
is => 'ro', default => sub { CPS::Future->new },
- trigger => sub {
+ trigger => sub {
my ($self, $f) = @_;
+ Dlog_trace { "trigger for on_close has been invoked for connection $_" } $self->_id;
weaken($self);
$f->on_done(sub {
$self->_fail_outstanding("Connection lost: ".($f->get)[0]);
sub _fail_outstanding {
my ($self, $error) = @_;
+ Dlog_debug { "Failing outstanding futures with '$error' for connection $_" } $self->_id;
my $outstanding = $self->outstanding_futures;
$_->fail($error) for values %$outstanding;
%$outstanding = ();
sub _id_to_remote_object {
my ($self, $id) = @_;
+ Dlog_trace { "fetching proxy for remote object with id '$id' for connection $_" } $self->_id;
return bless({}, 'Object::Remote::Null') if $id eq 'NULL';
(
$self->remote_objects_by_id->{$id}
tie *$handle, 'Object::Remote::GlobProxy', $glob_container;
return $handle;
}
+ )->filter_json_single_key_object(
+ __local_object__ => sub {
+ $self->local_objects_by_id->{$_[0]}
+ }
);
}
sub new_from_spec {
my ($class, $spec) = @_;
return $spec if blessed $spec;
+ Dlog_debug { "creating a new connection from spec" };
foreach my $poss (do { our @Guess }) {
if (my $conn = $poss->($spec)) {
+ #Dlog_debug { my $id = $conn->_id; "created connection $id for spec $_" } $spec;
return $conn->maybe::start::connect;
}
}
sub connect {
my ($self, $to) = @_;
+ Dlog_debug { "Creating connection to remote node '$to' for connection $_" } $self->_id;
return await_future(
$self->send_class_call(0, 'Object::Remote', connect => $to)
);
sub remote_sub {
my ($self, $sub) = @_;
my ($pkg, $name) = $sub =~ m/^(.*)::([^:]+)$/;
+ Dlog_debug { "Invoking remote sub '$sub' for connection $_" } $self->_id;
return await_future($self->send_class_call(0, $pkg, can => $name));
}
sub send_class_call {
my ($self, $ctx, @call) = @_;
+ Dlog_trace { "Sending a class call for connection $_" } $self->_id;
$self->send(call => class_call_handler => $ctx => call => @call);
}
sub register_remote {
my ($self, $remote) = @_;
+ Dlog_trace { my $i = $remote->id; "Registered a remote object with id of '$i' for connection $_" } $self->_id;
weaken($self->remote_objects_by_id->{$remote->id} = $remote);
return $remote;
}
sub send_free {
my ($self, $id) = @_;
+ Dlog_debug { "sending request to free object '$id' for connection $_" } $self->_id;
delete $self->remote_objects_by_id->{$id};
$self->_send([ free => $id ]);
}
sub _send {
my ($self, $to_send) = @_;
-
- print { $self->send_to_fh } $self->_serialize($to_send)."\n";
+ my $fh = $self->send_to_fh;
+ Dlog_trace { "Starting to serialize data in argument to _send for connection $_" } $self->_id;
+ my $serialized = $self->_serialize($to_send)."\n";
+ Dlog_trace { my $l = length($serialized); "serialization is completed; sending '$l' characters of serialized data to $_" } $fh;
+ #TODO this is very risky for deadlocks unless it's set to non-blocking and then with out extra
+ #logic it could easily do short-writes to the remote side
+ my $ret = print $fh $serialized;
+ Dlog_trace { my $r = defined $ret ? $ret : 'undef'; "print() returned $r with $_" } $fh;
+ #TODO hrm reason print's return value was ignored?
+ die "could not write to filehandle: $!" unless $ret;
+ return $ret;
}
sub _serialize {
sub _deobjectify {
my ($self, $data) = @_;
if (blessed($data)) {
- return +{ __remote_object__ => $self->_local_object_to_id($data) };
+ if (
+ $data->isa('Object::Remote::Proxy')
+ and $data->{remote}->connection == $self
+ ) {
+ return +{ __local_object__ => $data->{remote}->id };
+ } else {
+ return +{ __remote_object__ => $self->_local_object_to_id($data) };
+ }
} elsif (my $ref = ref($data)) {
if ($ref eq 'HASH') {
return +{ map +($_ => $self->_deobjectify($data->{$_})), keys %$data };
sub _receive {
my ($self, $flat) = @_;
warn "$$ <<< $flat\n" if $DEBUG;
+ Dlog_trace { my $l = length($flat); "Starting to deserialize $l characters of data for connection $_" } $self->_id;
my ($type, @rest) = eval { @{$self->_deserialize($flat)} }
or do { warn "Deserialize failed for ${flat}: $@"; return };
+ Dlog_trace { "deserialization complete for connection $_" } $self->_id;
eval { $self->${\"receive_${type}"}(@rest); 1 }
or do { warn "Receive failed for ${flat}: $@"; return };
return;
sub receive_free {
my ($self, $id) = @_;
+ Dlog_trace { "got a receive_free for object '$id' for connection $_" } $self->_id;
delete $self->local_objects_by_id->{$id}
or warn "Free: no such object $id";
return;
sub receive_call {
my ($self, $future_id, $id, @rest) = @_;
+ Dlog_trace { "got a receive_call for object '$id' for connection $_" } $self->_id;
my $future = $self->_id_to_remote_object($future_id);
$future->{method} = 'call_discard_free';
my $local = $self->local_objects_by_id->{$id}
sub receive_call_free {
my ($self, $future, $id, @rest) = @_;
+ Dlog_trace { "got a receive_call_free for object '$id' for connection $_" } $self->_id;
$self->receive_call($future, $id, undef, @rest);
$self->receive_free($id);
}
sub _invoke {
my ($self, $future, $local, $ctx, $method, @args) = @_;
+ Dlog_trace { "got _invoke for a method named '$method' for connection $_" } $self->_id;
if ($method =~ /^start::/) {
my $f = $local->$method(@args);
$f->on_done(sub { undef($f); $future->done(@_) });
projects / scpubgit/Object-Remote.git / blobdiff