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#!perl -w
# We assume that TestInit has been used.
BEGIN {
chdir 't' if -d 't';
require './test.pl';
skip_all_if_miniperl();
}
use strict;
use warnings;
use Config;
use Data::Dumper;
$Data::Dumper::Sortkeys = 1;
# Windows doesn't seem to be able to test signals.
skip_all("Signals lock up tests on $^O") if $^O =~ /MSWin32/;
$| = 1;
# Extract the signals from %Config.
my @SIGNAMES = split /\s+/, $Config{sig_name};
my @SIGNUMS = split /\s+/, $Config{sig_num};
my %SIG_MAP;
foreach my $i ( 0 .. ( scalar @SIGNAMES - 1 ) ) {
$SIG_MAP{ $SIGNAMES[$i] } = $SIGNUMS[$i];
}
# Find the canonical (first) signal names.
my %CANONICAL_SIG;
my @duplicate_signals;
foreach my $sig (@SIGNAMES) {
my $signum = $SIG_MAP{$sig};
$CANONICAL_SIG{$signum} //= $sig;
push @duplicate_signals, $sig if $CANONICAL_SIG{$signum} ne $sig;
}
plan tests => scalar @duplicate_signals * 5;
watchdog(25);
# Define the duplicate signal handlers.
my $sent = '';
sub handler_is {
my $signame = shift;
my $signum = $SIG_MAP{$signame};
my $canonical = $CANONICAL_SIG{$signum};
is( $signame, $canonical, "Signal name for $sent is recieved as the canonical '$canonical' name." );
return;
}
foreach my $dupe (@duplicate_signals) {
my $canonical_name = $CANONICAL_SIG{ $SIG_MAP{$dupe} };
note "Testing $dupe / $canonical_name signal pair";
{
local $SIG{$dupe} = \&handler_is;
is( $SIG{$dupe}, $SIG{$canonical_name}, "Both handlers for $canonical_name/$dupe are set" );
$sent = $dupe;
kill $dupe, $$;
$sent = $canonical_name;
kill $canonical_name, $$;
}
is( $SIG{$dupe}, undef, "The signal $dupe is cleared after local goes out of scope." );
is( $SIG{$canonical_name}, undef, "The signal $canonical_name is cleared after local goes out of scope." );
}
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