send ids only for return future

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

diff --git a/lib/Object/Remote/Connection.pm b/lib/Object/Remote/Connection.pm
index e3cb452..4490e44 100644 (file)
--- a/lib/Object/Remote/Connection.pm
+++ b/lib/Object/Remote/Connection.pm
@@ -41,9 +41,15 @@ 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 { {} });
+has local_objects_by_id => (
+  is => 'ro', default => sub { {} },
+  coerce => sub { +{ %{$_[0]} } }, # shallow clone on the way in
+);
 
-has remote_objects_by_id => (is => 'ro', default => sub { {} });
+has remote_objects_by_id => (
+  is => 'ro', default => sub { {} },
+  coerce => sub { +{ %{$_[0]} } }, # shallow clone on the way in
+);
 
 has outstanding_futures => (is => 'ro', default => sub { {} });
 
@@ -83,6 +89,7 @@ BEGIN {
   eval { require Object::Remote::Connector::Local };
   eval { require Object::Remote::Connector::LocalSudo };
   eval { require Object::Remote::Connector::SSH };
+  eval { require Object::Remote::Connector::UNIX };
 }
 
 sub new_from_spec {
@@ -94,7 +101,7 @@ sub new_from_spec {
   die "Couldn't figure out what to do with ${spec}";
 }
 
-sub new_remote {
+sub remote_object {
   my ($self, @args) = @_;
   Object::Remote::Handle->new(
     connection => $self, @args
@@ -103,15 +110,31 @@ sub new_remote {
 
 sub connect {
   my ($self, $to) = @_;
-  return await_future($self->send(
-    class_call => 'Object::Remote', 0, connect => $to
-  ));
+  return await_future(
+    $self->send_class_call(0, 'Object::Remote', connect => $to)
+  );
 }
 
-sub get_remote_sub {
+sub remote_sub {
   my ($self, $sub) = @_;
   my ($pkg, $name) = $sub =~ m/^(.*)::([^:]+)$/;
-  return await_future($self->send(class_call => $pkg, 0, can => $name));
+  return await_future($self->send_class_call(0, $pkg, can => $name));
+}
+
+sub send_class_call {
+  my ($self, $ctx, @call) = @_;
+  $self->send(call => class_call_handler => $ctx => call => @call);
+}
+
+sub register_class_call_handler {
+  my ($self) = @_;
+  $self->local_objects_by_id->{'class_call_handler'}
+    = Object::Remote::CodeContainer->new(
+        code => sub {
+          my ($class, $method) = splice @_, 0, 2;
+          use_module($class)->$method(@_);
+        }
+      );
 }
 
 sub register_remote {
@@ -134,7 +157,9 @@ sub send_free {
 sub send {
   my ($self, $type, @call) = @_;
 
-  unshift @call, $type => my $future = CPS::Future->new;
+  my $future = CPS::Future->new;
+
+  unshift @call, $type => $self->_local_object_to_id($future);
 
   my $outstanding = $self->outstanding_futures;
   $outstanding->{$future} = $future;
@@ -148,7 +173,7 @@ sub send {
 sub send_discard {
   my ($self, $type, @call) = @_;
 
-  unshift @call, $type => { __remote_object__ => 'NULL' };
+  unshift @call, $type => 'NULL';
 
   $self->_send(\@call);
 }
@@ -211,7 +236,9 @@ sub _receive_data_from {
   my ($self, $fh) = @_;
   my $rb = $self->_receive_data_buffer;
   my $ready = $self->ready_future->is_ready;
-  if (sysread($fh, $$rb, 1024, length($$rb)) > 0) {
+  my $len = sysread($fh, $$rb, 1024, length($$rb));
+  my $err = defined($len) ? '' : ": $!";
+  if (defined($len) and $len > 0) {
     while ($$rb =~ s/^(.*)\n//) {
       if ($ready) {
         $self->_receive($1);
@@ -229,7 +256,7 @@ sub _receive_data_from {
                       on_read_ready => 1
                     );
     my $outstanding = $self->outstanding_futures;
-    $_->fail("Connection lost") for values %$outstanding;
+    $_->fail("Connection lost${err}") for values %$outstanding;
     %$outstanding = ();
     $self->on_close->done();
   }
@@ -253,7 +280,8 @@ sub receive_free {
 }
 
 sub receive_call {
-  my ($self, $future, $id, @rest) = @_;
+  my ($self, $future_id, $id, @rest) = @_;
+  my $future = $self->_id_to_remote_object($future_id);
   $future->{method} = 'call_discard_free';
   my $local = $self->local_objects_by_id->{$id}
     or do { $future->fail("No such object $id"); return };
@@ -267,7 +295,8 @@ sub receive_call_free {
 }
 
 sub receive_class_call {
-  my ($self, $future, $class, @rest) = @_;
+  my ($self, $future_id, $class, @rest) = @_;
+  my $future = $self->_id_to_remote_object($future_id);
   $future->{method} = 'call_discard_free';
   eval { use_module($class) }
     or do { $future->fail("Error loading ${class}: $@"); return };