make module_sender parameterisable

[scpubgit/Object-Remote.git] / lib / Object / Remote / Connection.pm

diff --git a/lib/Object/Remote/Connection.pm b/lib/Object/Remote/Connection.pm
index f69275d..1d21114 100644 (file)
--- a/lib/Object/Remote/Connection.pm
+++ b/lib/Object/Remote/Connection.pm
@@ -2,6 +2,7 @@ package Object::Remote::Connection;
 
 use Object::Remote::Future;
 use Object::Remote::Null;
+use Object::Remote::Handle;
 use Object::Remote;
 use IO::Handle;
 use Module::Runtime qw(use_module);
@@ -9,7 +10,7 @@ use Scalar::Util qw(weaken blessed refaddr);
 use JSON::PP qw(encode_json);
 use Moo;
 
-our $DEBUG;
+our $DEBUG = !!$ENV{OBJECT_REMOTE_DEBUG};
 
 has send_to_fh => (
   is => 'ro', required => 1,
@@ -33,6 +34,15 @@ has on_close => (is => 'rw', default => sub {});
 
 has child_pid => (is => 'ro');
 
+has is_ready => (is => 'rwp', trigger => sub {
+  my ($self, $value) = @_;
+  $self->ready_future->done if $value;
+});
+
+has ready_future => (is => 'lazy');
+
+sub _build_ready_future { CPS::Future->new }
+
 has _receive_data_buffer => (is => 'ro', default => sub { my $x = ''; \$x });
 
 has local_objects_by_id => (is => 'ro', default => sub { {} });
@@ -56,7 +66,7 @@ sub _build__json {
       return bless({}, 'Object::Remote::Null') if $id eq 'NULL';
       (
         $remotes->{$id}
-        or Object::Remote->new(connection => $self, id => $id)
+        or Object::Remote::Handle->new(connection => $self, id => $id)
       )->proxy;
     }
   );
@@ -65,6 +75,7 @@ sub _build__json {
 BEGIN {
   unshift our @Guess, sub { blessed($_[0]) ? $_[0] : undef };
   eval { require Object::Remote::Connector::Local };
+  eval { require Object::Remote::Connector::LocalSudo };
   eval { require Object::Remote::Connector::SSH };
 }
 
@@ -82,6 +93,12 @@ sub register_remote {
   return $remote;
 }
 
+sub await_ready {
+  my ($self) = @_;
+  return if $self->is_ready;
+  await_future($self->ready_future);
+}
+
 sub send_free {
   my ($self, $id) = @_;
   delete $self->remote_objects_by_id->{$id};
@@ -109,6 +126,8 @@ sub send_discard {
 sub _send {
   my ($self, $to_send) = @_;
 
+  $self->await_ready unless $self->is_ready;
+
   print { $self->send_to_fh } $self->_serialize($to_send)."\n";
 }
 
@@ -119,7 +138,7 @@ sub _serialize {
     my $flat = $self->_encode($self->_deobjectify($data));
     warn "$$ >>> ${flat}\n" if $DEBUG;
     $flat;
-  } or do {
+  } || do {
     my $err = $@; # won't get here if the eval doesn't die
     # don't keep refs to new things
     delete @{$self->local_objects_by_id}{@New_Ids};
@@ -151,9 +170,17 @@ sub _deobjectify {
 sub _receive_data_from {
   my ($self, $fh) = @_;
   my $rb = $self->_receive_data_buffer;
+  my $ready = $self->is_ready;
   if (sysread($fh, $$rb, 1024, length($$rb)) > 0) {
     while ($$rb =~ s/^(.*)\n//) {
-      $self->_receive($1);
+      if ($ready) {
+        $self->_receive($1);
+      } else {
+        my $line = $1;
+        die "New remote container did not send Shere - got ${line}"
+          unless $line eq "Shere";
+        $self->_set_is_ready($ready = 1);
+      }
     }
   } else {
     $self->on_close->done();