remoting/protocol/port_range.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef REMOTING_PROTOCOL_PORT_RANGE_H_
   6 #define REMOTING_PROTOCOL_PORT_RANGE_H_
   7
   8 #include <ostream>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12
  13 namespace remoting {
  14
  15 // Wrapper for a value of UdpPortRange policy.
  16 struct PortRange {
  17   // Both |min_port| and |max_port| are inclusive.
  18   uint16 min_port;
  19   uint16 max_port;
  20
  21   // Returns true if |port_range| passed to Parse was an empty string
  22   // (or if |this| has been initialized by the default constructor below).
  23   inline bool is_null() const { return (min_port == 0) && (max_port == 0); }
  24
  25   // Parse string in the form "<min_port>-<max_port>". E.g. "12400-12409".
  26   // Returns true if string was parsed successfuly.
  27   //
  28   // Returns false and doesn't modify |result| if parsing fails (i.e. when
  29   // |port_range| doesn't represent a valid port range).
  30   static bool Parse(const std::string& port_range, PortRange* result);
  31
  32   PortRange() : min_port(0), max_port(0) {}
  33 };
  34
  35 std::ostream& operator<<(std::ostream& os, const PortRange& port_range);
  36
  37 }  // namespace remoting
  38
  39 #endif  // REMOTING_PROTOCOL_PORT_RANGE_H_