Description:
------------
TLS streams are blocking and consuming 100% CPU when there's no data when set to non-blocking. Test script is using a local IRC server so I didn't have to write a server. Removing tls:// and changing the port to 6667 works as expected.

Test script:
---------------
<?php
$context = stream_context_create();
stream_context_set_option($context, "ssl", "verify_peer", false);

$fp = stream_socket_client("tls://localhost:6697", $errno, $errstr, 10, STREAM_CLIENT_CONNECT, $context) or die();
stream_set_blocking($fp, 0);

while (!feof($fp)) {
        echo microtime(true)." Reading...\n";
        $line = fgets($fp);
        echo microtime(true)." $line\n";

        if (!$fp) {
                usleep(10000);
        }
}
@fclose($fp);
?>

Expected result:
----------------
"Reading..." should repeat every ~10ms and CPU usage should be low


Actual result:
--------------
$ php test.php
1428791498.132599 Reading...
1428791498.171197 :localhost NOTICE AUTH :*** Looking up your hostname...

1428791498.171224 Reading...
1428791498.171237 :localhost NOTICE AUTH :*** Found your hostname (cached)

1428791498.171251 Reading...
# At this point htop shows it using 100% CPU until the server send a blank line to check the connection hasn't broken
1428791508.17128