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#ifndef CHROME_COMMON_PROCESS_WATCHER_H__
#define CHROME_COMMON_PROCESS_WATCHER_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(ProcessHandle process_handle);

 private:
  // Do not instantiate this class.
  ProcessWatcher();

  DISALLOW_EVIL_CONSTRUCTORS(ProcessWatcher);
};

#endif  // CHROME_COMMON_PROCESS_WATCHER_H__