—package
Mojo::Server::Morbo;
use
Mojo::Base -base;
# "Linda: With Haley's Comet out of ice, Earth is experiencing the devastating
# effects of sudden, intense global warming.
# Morbo: Morbo is pleased but sticky."
use
Mojo::Home;
use
Mojo::Server::Daemon;
has
daemon
=>
sub
{ Mojo::Server::Daemon->new };
has
watch
=>
sub
{ [
qw(lib templates)
] };
sub
check {
my
$self
=
shift
;
# Discover files
my
@files
;
for
my
$watch
(@{
$self
->watch}) {
if
(-d
$watch
) {
my
$home
= Mojo::Home->new->parse(
$watch
);
push
@files
,
$home
->rel_file(
$_
)
for
@{
$home
->list_files};
}
elsif
(-r
$watch
) {
push
@files
,
$watch
}
}
$self
->_check(
$_
) and
return
$_
for
@files
;
return
undef
;
}
sub
run {
my
(
$self
,
$app
) =
@_
;
# Clean manager environment
local
$SIG
{INT} =
local
$SIG
{TERM} =
sub
{
$self
->{finished} = 1;
kill
'TERM'
,
$self
->{worker}
if
$self
->{worker};
};
unshift
@{
$self
->watch},
$app
;
$self
->{modified} = 1;
# Prepare and cache listen sockets for smooth restarting
$self
->daemon->start->stop;
$self
->_manage
until
$self
->{finished} && !
$self
->{worker};
exit
0;
}
sub
_check {
my
(
$self
,
$file
) =
@_
;
# Check if modify time and/or size have changed
my
(
$size
,
$mtime
) = (
stat
$file
)[7, 9];
return
undef
unless
defined
$mtime
;
my
$cache
=
$self
->{cache} ||= {};
my
$stats
=
$cache
->{
$file
} ||= [$^T,
$size
];
return
undef
if
$mtime
<=
$stats
->[0] &&
$size
==
$stats
->[1];
return
!!(
$cache
->{
$file
} = [
$mtime
,
$size
]);
}
sub
_manage {
my
$self
=
shift
;
if
(
defined
(
my
$file
=
$self
->check)) {
say
qq{File "$file" changed, restarting.}
if
$ENV
{MORBO_VERBOSE};
kill
'TERM'
,
$self
->{worker}
if
$self
->{worker};
$self
->{modified} = 1;
}
if
(
my
$pid
=
$self
->{worker}) {
delete
$self
->{worker}
if
waitpid
(
$pid
, WNOHANG) ==
$pid
;
}
$self
->_spawn
if
!
$self
->{worker} &&
delete
$self
->{modified};
sleep
1;
}
sub
_spawn {
my
$self
=
shift
;
# Manager
my
$manager
= $$;
die
"Can't fork: $!"
unless
defined
(
my
$pid
=
$self
->{worker} =
fork
);
return
if
$pid
;
# Worker
my
$daemon
=
$self
->daemon;
$daemon
->load_app(
$self
->watch->[0]);
$daemon
->ioloop->recurring(
1
=>
sub
{
shift
->stop
unless
kill
0,
$manager
});
$daemon
->run;
exit
0;
}
1;
=encoding utf8
=head1 NAME
Mojo::Server::Morbo - DOOOOOOOOOOOOOOOOOOM!
=head1 SYNOPSIS
use Mojo::Server::Morbo;
my $morbo = Mojo::Server::Morbo->new;
$morbo->run('/home/sri/myapp.pl');
=head1 DESCRIPTION
L<Mojo::Server::Morbo> is a full featured, self-restart capable non-blocking
I/O HTTP and WebSocket server, built around the very well tested and reliable
L<Mojo::Server::Daemon>, with IPv6, TLS, Comet (long polling), keep-alive and
multiple event loop support. Note that the server uses signals for process
management, so you should avoid modifying signal handlers in your applications.
To start applications with it you can use the L<morbo> script.
$ morbo ./myapp.pl
Server available at http://127.0.0.1:3000
For better scalability (epoll, kqueue) and to provide non-blocking name
resolution, SOCKS5 as well as TLS support, the optional modules L<EV> (4.0+),
L<Net::DNS::Native> (0.15+), L<IO::Socket::Socks> (0.64+) and
L<IO::Socket::SSL> (1.94+) will be used automatically if possible. Individual
features can also be disabled with the C<MOJO_NO_NDN>, C<MOJO_NO_SOCKS> and
C<MOJO_NO_TLS> environment variables.
See L<Mojolicious::Guides::Cookbook/"DEPLOYMENT"> for more.
=head1 SIGNALS
The L<Mojo::Server::Morbo> process can be controlled at runtime with the
following signals.
=head2 INT, TERM
Shut down server immediately.
=head1 ATTRIBUTES
L<Mojo::Server::Morbo> implements the following attributes.
=head2 daemon
my $daemon = $morbo->daemon;
$morbo = $morbo->daemon(Mojo::Server::Daemon->new);
L<Mojo::Server::Daemon> object this server manages.
=head2 watch
my $watch = $morbo->watch;
$morbo = $morbo->watch(['/home/sri/my_app']);
Files and directories to watch for changes, defaults to the application script
as well as the C<lib> and C<templates> directories in the current working
directory.
=head1 METHODS
L<Mojo::Server::Morbo> inherits all methods from L<Mojo::Base> and implements
the following new ones.
=head2 check
my $file = $morbo->check;
Check if file from L</"watch"> has been modified since last check and return
its name or C<undef> if there have been no changes.
=head2 run
$morbo->run('script/my_app');
Run server for application.
=head1 SEE ALSO
L<Mojolicious>, L<Mojolicious::Guides>, L<http://mojolicio.us>.
=cut