base/mac/scoped_mach_port.h

   1 // Copyright (c) 2012 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 BASE_MAC_SCOPED_MACH_PORT_H_
   6 #define BASE_MAC_SCOPED_MACH_PORT_H_
   7
   8 #include <mach/mach.h>
   9
  10 #include "base/basictypes.h"
  11 #include "base/base_export.h"
  12
  13 namespace base {
  14 namespace mac {
  15
  16 // A class for managing the life of a Mach port, releasing via
  17 // mach_port_deallocate either its send and/or receive rights.
  18 class BASE_EXPORT ScopedMachPort {
  19  public:
  20   // Creates a scoper by taking ownership of the port.
  21   explicit ScopedMachPort(mach_port_t port);
  22
  23   ~ScopedMachPort();
  24
  25   void reset(mach_port_t port = MACH_PORT_NULL);
  26
  27   operator mach_port_t() const {
  28     return port_;
  29   }
  30
  31   mach_port_t get() const {
  32     return port_;
  33   }
  34
  35  private:
  36   mach_port_t port_;
  37
  38   DISALLOW_COPY_AND_ASSIGN(ScopedMachPort);
  39 };
  40
  41 }  // namespace mac
  42 }  // namespace base
  43
  44 #endif  // BASE_MAC_SCOPED_MACH_PORT_H_