Commit | Line | Data |
a9fdb55e |
1 | package Object::Remote::Role::Connector::PerlInterpreter; |
2 | |
3 | use IPC::Open2; |
4c8c83d7 |
4 | use IO::Handle; |
a9fdb55e |
5 | use Object::Remote::ModuleSender; |
6 | use Object::Remote::Handle; |
fbd3b8ec |
7 | use Object::Remote::Future; |
5e2b2229 |
8 | use Object::Remote::Logging qw( :log ); |
18e789ab |
9 | use Scalar::Util qw(blessed); |
a9fdb55e |
10 | use Moo::Role; |
11 | |
12 | with 'Object::Remote::Role::Connector'; |
13 | |
03f41c0e |
14 | has module_sender => (is => 'lazy'); |
15 | |
16 | sub _build_module_sender { |
18e789ab |
17 | my ($hook) = |
18 | grep {blessed($_) && $_->isa('Object::Remote::ModuleLoader::Hook') } |
19 | @INC; |
03f41c0e |
20 | return $hook ? $hook->sender : Object::Remote::ModuleSender->new; |
21 | } |
22 | |
498c4ad5 |
23 | has perl_command => (is => 'lazy'); |
24 | |
25 | sub _build_perl_command { [ 'perl', '-' ] } |
26 | |
03f41c0e |
27 | around connect => sub { |
28 | my ($orig, $self) = (shift, shift); |
fbd3b8ec |
29 | my $f = $self->$start::start($orig => @_); |
30 | return future { |
31 | $f->on_done(sub { |
32 | my ($conn) = $f->get; |
4a9fa1a5 |
33 | my $sub = $conn->remote_sub('Object::Remote::Logging::init_logging_forwarding'); |
34 | $sub->('Object::Remote::Logging', Object::Remote::Logging->arg_router); |
fbd3b8ec |
35 | Object::Remote::Handle->new( |
36 | connection => $conn, |
37 | class => 'Object::Remote::ModuleLoader', |
38 | args => { module_sender => $self->module_sender } |
39 | )->disarm_free; |
40 | require Object::Remote::Prompt; |
41 | Object::Remote::Prompt::maybe_set_prompt_command_on($conn); |
42 | }); |
43 | $f; |
44 | } 2; |
a9fdb55e |
45 | }; |
46 | |
498c4ad5 |
47 | sub final_perl_command { shift->perl_command } |
a9fdb55e |
48 | |
7efea51f |
49 | sub _start_perl { |
a9fdb55e |
50 | my $self = shift; |
51 | my $pid = open2( |
52 | my $foreign_stdout, |
53 | my $foreign_stdin, |
498c4ad5 |
54 | @{$self->final_perl_command}, |
a9fdb55e |
55 | ) or die "Failed to run perl at '$_[0]': $!"; |
7efea51f |
56 | return ($foreign_stdin, $foreign_stdout, $pid); |
57 | } |
58 | |
5d59cb98 |
59 | #TODO open2() forks off a child and I have not been able to locate |
60 | #a mechanism for reaping dead children so they don't become zombies |
7efea51f |
61 | sub _open2_for { |
62 | my $self = shift; |
63 | my ($foreign_stdin, $foreign_stdout, $pid) = $self->_start_perl(@_); |
fbd3b8ec |
64 | my $to_send = $self->fatnode_text; |
5d59cb98 |
65 | log_debug { my $len = length($to_send); "Sending contents of fat node to remote node; size is '$len' characters" }; |
fbd3b8ec |
66 | Object::Remote->current_loop |
67 | ->watch_io( |
68 | handle => $foreign_stdin, |
69 | on_write_ready => sub { |
70 | my $len = syswrite($foreign_stdin, $to_send, 4096); |
71 | if (defined $len) { |
72 | substr($to_send, 0, $len) = ''; |
73 | } |
74 | # if the stdin went away, we'll never get Shere |
75 | # so it's not a big deal to simply give up on !defined |
76 | if (!defined($len) or 0 == length($to_send)) { |
5d59cb98 |
77 | log_trace { "Got EOF or error when writing fatnode data to filehandle, unwatching it" }; |
fbd3b8ec |
78 | Object::Remote->current_loop |
79 | ->unwatch_io( |
80 | handle => $foreign_stdin, |
81 | on_write_ready => 1 |
82 | ); |
5d59cb98 |
83 | } else { |
84 | log_trace { "Sent $len bytes of fatnode data to remote side" }; |
fbd3b8ec |
85 | } |
86 | } |
87 | ); |
a9fdb55e |
88 | return ($foreign_stdin, $foreign_stdout, $pid); |
89 | } |
90 | |
b1cbd5be |
91 | sub fatnode_text { |
92 | my ($self) = @_; |
93 | require Object::Remote::FatNode; |
94 | my $text = ''; |
95 | $text .= 'BEGIN { $ENV{OBJECT_REMOTE_DEBUG} = 1 }'."\n" |
96 | if $ENV{OBJECT_REMOTE_DEBUG}; |
97 | $text .= <<'END'; |
98 | $INC{'Object/Remote/FatNode.pm'} = __FILE__; |
99 | $Object::Remote::FatNode::DATA = <<'ENDFAT'; |
100 | END |
fbd3b8ec |
101 | $text .= do { no warnings 'once'; $Object::Remote::FatNode::DATA }; |
b1cbd5be |
102 | $text .= "ENDFAT\n"; |
103 | $text .= <<'END'; |
104 | eval $Object::Remote::FatNode::DATA; |
1a2d795f |
105 | die $@ if $@; |
b1cbd5be |
106 | END |
107 | $text .= "__END__\n"; |
108 | return $text; |
109 | } |
110 | |
a9fdb55e |
111 | 1; |