view http_listen.t @ 1752:ba6e24e38f03

Tests: improved stop_daemons() to send signal again. As was observed, it's possible that a signal to complete a uwsgi daemon can be ignored while it is starting up, which results in tests hang due to eternal waiting on child processes termination. Notably, it is seen when running tests with a high number of prove jobs on a low-profile VM against nginx with broken modules and/or configuration. To reproduce: $ TEST_NGINX_GLOBALS=ERROR prove -j16 uwsgi*.t Inspecting uwsgi under ktrace on FreeBSD confirms that a SIGTERM signal is ignored at the very beginning of uwsgi startup. It is then replaced with a default action after listen(), thus waiting until uwsgi is ready to accept new TCP connections doesn't completely solve the hang window. The fix is to retry sending a signal some time after waitpid(WNOHANG) continuously demonstrated no progress with reaping a signaled process. It is modelled after f13ead27f89c that improved stop() for nginx.
author Sergey Kandaurov <pluknet@nginx.com>
date Wed, 29 Dec 2021 22:29:23 +0300
parents 144c6ce732e4
children c045fbb98e9a
line wrap: on
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#!/usr/bin/perl

# (C) Sergey Kandaurov
# (C) Nginx, Inc.

# Tests for listen port ranges.

###############################################################################

use warnings;
use strict;

use Test::More;

BEGIN { use FindBin; chdir($FindBin::Bin); }

use lib 'lib';
use Test::Nginx;

###############################################################################

select STDERR; $| = 1;
select STDOUT; $| = 1;

my $t = Test::Nginx->new()->has(qw/http proxy rewrite/);

$t->write_file_expand('nginx.conf', <<'EOF');

%%TEST_GLOBALS%%

daemon off;

events {
}

http {
    %%TEST_GLOBALS_HTTP%%

    server {
        listen       127.0.0.1:8080;
        listen       127.0.0.1:%%PORT_8082%%-%%PORT_8083%%;
        listen       %%PORT_8085%%-%%PORT_8086%%;
        listen       [::1]:%%PORT_8085%%-%%PORT_8086%%;
        server_name  localhost;

        location / {
            proxy_pass  http://$arg_b/t;
        }

        location /t {
            return  200  $server_addr:$server_port;
        }
    }

    # catch out of range

    server {
        listen       127.0.0.1:8081;
        listen       127.0.0.1:8084;
        listen       127.0.0.1:8087;
        listen       [::1]:%%PORT_8084%%;
        listen       [::1]:%%PORT_8087%%;
        server_name  localhost;
    }
}

EOF

my $p0 = port(8080); my $p3 = port(8083); my $p6 = port(8086);
my $p1 = port(8081); my $p4 = port(8084); my $p7 = port(8087);
my $p2 = port(8082); my $p5 = port(8085);

plan(skip_all => 'listen on wildcard address')
	unless $ENV{TEST_NGINX_UNSAFE};

plan(skip_all => 'no requested ranges')
	if "$p0$p1$p2$p3$p4$p5$p6$p7" ne "80808081808280838084808580868087";

$t->run()->plan(12);

###############################################################################

like(http_get("/?b=127.0.0.1:$p0"), qr/127.0.0.1:$p0/, 'single');
unlike(http_get("/?b=127.0.0.1:$p1"), qr/127.0.0.1:$p1/, 'out of range 1');
like(http_get("/?b=127.0.0.1:$p2"), qr/127.0.0.1:$p2/, 'range 1');
like(http_get("/?b=127.0.0.1:$p3"), qr/127.0.0.1:$p3/, 'range 2');
unlike(http_get("/?b=127.0.0.1:$p4"), qr/127.0.0.$p4/, 'out of range 2');
like(http_get("/?b=127.0.0.1:$p5"), qr/127.0.0.1:$p5/, 'wildcard range 1');
like(http_get("/?b=127.0.0.1:$p6"), qr/127.0.0.1:$p6/, 'wildcard range 2');
unlike(http_get("/?b=127.0.0.1:$p7"), qr/127.0.0.1:$p7/, 'out of range 3');

unlike(http_get("/?b=[::1]:$p4"), qr/::1:$p4/, 'out of range 4');
like(http_get("/?b=[::1]:$p5"), qr/::1:$p5/, 'ipv6 range 1');
like(http_get("/?b=[::1]:$p6"), qr/::1:$p6/, 'ipv6 range 2');
unlike(http_get("/?b=[::1]:$p7"), qr/::1:$p7/, 'out of range 5');

###############################################################################