convert to zero-byte eventuals
The IO tasks signal back to the caller using eventuals. Currently they set a dummy integer (the value is ignored), but Argobots now supports zero byte that don't use a value. This would be cleaner.
The IO tasks signal back to the caller using eventuals. Currently they set a dummy integer (the value is ignored), but Argobots now supports zero byte that don't use a value. This would be cleaner.