php - more descriptive socket errors and enable the timeout

pool/socket.php

@@ -12,9 +12,10 @@ function _getsock($fun, $port, $unix=true)
 	 $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
  if ($socket === false || $socket === null)
  {
-	$sockerr = socket_strerror(socket_last_error());
+	$sle = socket_last_error();
+	$sockerr = socket_strerror($sle);
 	$msg = "$fun() _getsock() create($port) failed";
-	error_log("CKPERR: $msg '$sockerr'");
+	error_log("CKPERR: $msg ($sle) '$sockerr'");
 	return false;
  }
 
@@ -43,21 +44,24 @@ function _getsock($fun, $port, $unix=true)
 		}
 		if ($res === false)
 		{
-			$sockerr = socket_strerror(socket_last_error());
+			$sle = socket_last_error();
+			$sockerr = socket_strerror($sle);
 			if ($unix === true)
 				$msg = "$fun() _getsock() connect($port) failed 3x";
 			else
 				$msg = "$fun() _getsock() connect($port) failed 3x (+2+5s sleep)";
-			error_log("CKPERR: $msg '$sockerr'");
+			error_log("CKPERR: $msg ($sle) '$sockerr'");
 			socket_close($socket);
 			return false;
 		}
 	}
  }
  # Avoid getting locked up for long
- $tmo = array('sec' => 1, 'usec' => 0);
+ $tmo = array('sec' => 2, 'usec' => 0);
  socket_set_option($socket, SOL_SOCKET, SO_SNDTIMEO, $tmo);
  socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, $tmo);
+ # Enable timeout
+ socket_set_block($socket);
  return $socket;
 }
 #
@@ -71,7 +75,8 @@ function readsockline($fun, $socket)
  $siz = socket_read($socket, 4, PHP_BINARY_READ);
  if ($siz === false)
  {
-	$sockerr = socket_strerror(socket_last_error());
+	$sle = socket_last_error();
+	$sockerr = socket_strerror($sle);
 	$msg = "$fun() readsockline() failed";
 	error_log("CKPERR: $msg '$sockerr'");
 	return false;
@@ -91,9 +96,10 @@ function readsockline($fun, $socket)
 	$line = socket_read($socket, $left, PHP_BINARY_READ);
 	if ($line === false)
 	{
-		$sockerr = socket_strerror(socket_last_error());
-		$msg = "$fun() readsockline() failed";
-		error_log("CKPERR: $msg '$sockerr'");
+		$sle = socket_last_error();
+		$sockerr = socket_strerror($sle);
+		$msg = "$fun() readsockline() $left failed (len=$len)";
+		error_log("CKPERR: $msg ($sle) '$sockerr'");
 		return false;
 	}
 	$red = strlen($line);