Using Mojo::IOLoop->subprocess is working for me. Here's what I have now
(adapted from the example):
get '/edit' => sub {
my $c = shift;
Mojo::IOLoop->subprocess(
sub {
my $subprocess = shift;
my $result = `/usr/bin/gvim $tc_file 2>&1`;
return;
},
sub {
my ($subprocess, $err, @results) = @_;
say "Subprocess error: $err" and return if $err;
}
);
$c->redirect_to('/');
};
Thank you!
On 3/9/20 9:02 PM, Stefan Adams wrote:
Would Mojo::IOLoop->subprocess
<https://mojolicious.org/perldoc/Mojolicious/Guides/Cookbook#Subprocesses>
work for you? Where the example shows sleep 5, put your system call
to gvim? Not sure if that's a good solution if gvim is a long-running
process, tho. Also, try it with `perl script daemon` as opposed to
using `morbo`, maybe? Or try the systemd setup for hypnotoad
<https://mojolicious.org/perldoc/Mojolicious/Guides/Cookbook#Hypnotoad>.
Is there any chance that Minion
<https://mojolicious.org/perldoc/Minion> can help you here? Minion is
designed to handle long-running processes.
On Mon, Mar 9, 2020 at 8:24 PM Mike Lieman <mikelie...@gmail.com
<mailto:mikelie...@gmail.com>> wrote:
I don't think you want to use Daemon::Control. How about a nice,
simple fork()?
On Mon, Mar 9, 2020 at 8:46 PM Matthew Pressly
<matthew.pres...@gmail.com <mailto:matthew.pres...@gmail.com>> wrote:
From a mojolicious web app, I need to be able to launch gvim
by clicking a link or button to edit a particular file.
Currently, I have this in the app:
get '/edit' => sub {
my $c = shift;
my $result = `/usr/bin/gvim $filename 2>&1`;
$c->redirect_to('/');
};
Sometimes it works, but other times, gvim runs twice when the
link is clicked and more frequently, gvim runs but hangs up in
the background, after which I end up killing the gvim process
and killing and restarting the web app to get it back to working.
Is there a way to launch gvim (or other interactive programs)
more reliably?
I'm using the following for a start script:
#!/usr/bin/perl
use warnings;
use strict;
use Daemon::Control;
exit Daemon::Control->new(
name => "My Application",
lsb_start => '$syslog $remote_fs',
lsb_stop => '$syslog',
lsb_sdesc => 'My App',
lsb_desc => 'Controls the time tracker service.',
#path => '/home/symkat/etc/init.d/program',
program => '/usr/bin/morbo',
program_args => [ '/path/to/mojolicious/app.pl
<http://app.pl>' ],
pid_file => '/tmp/myapp.pid',
stderr_file => '/var/log/myapp/myapp.log',
stdout_file => '/var/log/myapp/myapp.log',
user => 'myuser',
group => 'myuser',
fork => 2,
)->run;
Thank you,
--
Matthew
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