--- a/php/read/similar.php	Sun Jul 30 05:36:48 2017 -0400
+++ b/php/read/similar.php	Sat Jan 05 06:21:12 2019 -0500
@@ -106,8 +106,26 @@
         curl_setopt ($crl, CURLOPT_URL,$url);
         curl_setopt ($crl, CURLOPT_RETURNTRANSFER, 1);
         curl_setopt ($crl, CURLOPT_CONNECTTIMEOUT, $timeout);
+	$gotit=0;
+	  $semaphore = new SyncSemaphore("Amazon");
+	  $gotit = $semaphore->lock(1000);
+	  if (!$gotit) {
+	    file_put_contents('/var/ywww/debug/phpDebug',
+			      "Got it: ".(int)$gotit." 4\n",FILE_APPEND);
+	    $gotit = $semaphore->lock(1000);
+	    file_put_contents('/var/ywww/debug/phpDebug',
+		        "Got it: ".(int)$gotit." 4a\n",FILE_APPEND);
+	  }
         $ret = curl_exec($crl);
         curl_close($crl);
+	usleep(500000);
+	if ($gotit) {
+	  $semaphore->unlock();
+	}
+	else {
+	  file_put_contents('/var/ywww/debug/phpDebug',
+			    "Unlocking 4\n",FILE_APPEND);
+	}
         //echo $ret;
 		
 $xml = new SimpleXMLElement($ret);