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#########################
use Test::More;
BEGIN {
if ($^O eq "MSWin32") {
plan skip_all => 'No FD_CLOEXEC tests, running on Windows';
}
if (!-d "/proc/$$") {
plan skip_all => 'No FD_CLOEXEC tests, no /proc filesystem';
}
}
use strict;
use Fcntl;
#########################
# Test fd's are closed on exec
if (@ARGV) {
my $PipeFd = shift @ARGV;
my $FdCount = scalar(() = glob "/proc/$$/fd/*");
open(my $PipeFh, ">&=$PipeFd")
|| die "Could not reopen fd: $!";
print($PipeFh "$FdCount\n")
|| die "Could not print to pipe: $!";
exit(0);
}
require Cache::FastMmap;
my @Caches = map {
Cache::FastMmap->new(
page_size => 4096,
num_pages => 1,
init_file => 1,
serializer => '',
);
} (1 .. 20);
my $CacheCount = @Caches;
my $FdCount = scalar(() = glob "/proc/$$/fd/*");
ok($FdCount > $CacheCount, "More fd's than caches: $FdCount > $CacheCount");
pipe(my $ReadPipeFh, my $WritePipeFh)
|| die "pipe failed: $!";
fcntl($ReadPipeFh, F_SETFD, 0);
fcntl($WritePipeFh, F_SETFD, 0);
if (!fork) {
exec $^X, $0, fileno($WritePipeFh)
|| die "exec failed: $!";
}
my $ChildFdCount = <$ReadPipeFh>;
chomp $ChildFdCount;
ok($ChildFdCount < $CacheCount, "Less fd's in child than caches: $ChildFdCount < $CacheCount");
done_testing(2);
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