process_watcher.h - mozsearch

Enable keyboard shortcuts

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

#ifndef CHROME_COMMON_PROCESS_WATCHER_H_

#define CHROME_COMMON_PROCESS_WATCHER_H_

#include "base/basictypes.h"

#include "base/process_util.h"

class ProcessWatcher {

 public:

  // This method ensures that the specified process eventually terminates, and

  // then it closes the given process handle.

//

  // It assumes that the process has already been signalled to exit, and it

  // begins by waiting a small amount of time for it to exit.  If the process

  // does not appear to have exited, then this function starts to become

  // aggressive about ensuring that the process terminates.

//

  // This method does not block the calling thread.

//

  // NOTE: The process handle must have been opened with the PROCESS_TERMINATE

  // and SYNCHRONIZE permissions.

//

  static void EnsureProcessTerminated(base::ProcessHandle process_handle,

                                      bool force = true);

 private:

  // Do not instantiate this class.

  ProcessWatcher();

  DISALLOW_COPY_AND_ASSIGN(ProcessWatcher);

};

#endif  // CHROME_COMMON_PROCESS_WATCHER_H_