Thanks Dotan
I got a "premature connection close" even before adding the sleep call.
That's why I added a sleep to give a chance to my code to wait enough time
for the HTTP requests to get a response. I'm not sure how to make my code
wait for this response another way.
Le mardi 4 février 2014 07:02:27 UTC+1, Dotan Dimet a écrit :
>
> sleep() is a BLOCKING system call, so your program will just block all
> execution for 10 seconds when it reaches that line, not wait for anything
> to happen. This will mess up with all the non-blocking code - as far as the
> UA is concerned, you started a request and then hung the program, which I
> think is why you get a premature connection close.
> You are also doing this inside a recurring call, so the IOLoop will try to
> start another of these every 20 seconds - each of them blocking the program
> for 10 seconds.
> Also, if you run this by starting a server (morbo or daemon), you might
> want to print to STDERR, not to STDOUT.
>
> On 2/4/14, 7:24 AM, Vincent HETRU wrote:
>
> Hi,
>
> In the UserAgent's doc
>
> I read that I can do Non-blocking HTTP requests that does work inside a
> running event loop.
>
> So i thought I could run the example code of the documentation inside
> the callback of a recurring call like this:
>
> use Mojo::Base 'Mojolicious';
>> use Data::Dumper;
>> use Mojo::IOLoop;
>> # This method will run once at server start
>> sub startup {
>> my $self = shift;
>> my $timer_id = Mojo::IOLoop->recurring(20 => sub {
>> print("enter timer\n");
>> # Non-blocking parallel requests (should work inside a running event
>> loop according to the doc)
>> my $ua = Mojo::UserAgent->new;
>> my $delay = Mojo::IOLoop->delay(sub {
>> my ($delay, @titles) = @_;
>> print (Dumper(@titles));
>> });
>> for my $url ('mojolicio.us', 'cpan.org') {
>> my $end = $delay->begin(0);
>> $ua->get($url => sub {
>> my ($ua, $tx) = @_;
>> $end->($tx->res->dom->at('title')->text);
>> });
>> }
>> $delay->wait unless Mojo::IOLoop->is_running;
>> sleep(10);
>> print("leave timer\n");
>> });
>> }
>
>
> but it does not work as expected, and I got a "Premature connection
> close" error message for both http requests. I put the sleep(10); to make
> sure I gave enough time for both requests to get through, but that doesn't
> help.
>
> What I am missing or doing wrong?
>
> Best Regards.
>
> Vincent
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