C++程序  |  57行  |  2.11 KB

// Copyright (c) 2010 Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Inline implementation of ScopedTaskSuspend, which suspends a Mach
// task for the duration of its scope.

#ifndef GOOGLE_BREAKPAD_COMMON_MAC_SCOPED_TASK_SUSPEND_H_
#define GOOGLE_BREAKPAD_COMMON_MAC_SCOPED_TASK_SUSPEND_H_

#include <mach/mach.h>

namespace google_breakpad {

class ScopedTaskSuspend {
 public:
  explicit ScopedTaskSuspend(mach_port_t target) : target_(target) {
    task_suspend(target_);
  }

  ~ScopedTaskSuspend() {
    task_resume(target_);
  }

 private:
  mach_port_t target_;
};

}  // namespace google_breakpad

#endif  // GOOGLE_BREAKPAD_COMMON_MAC_SCOPED_TASK_SUSPEND_H_