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+/* -*- 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_