noop.hpp

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//     http://www.apache.org/licenses/LICENSE-2.0
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#ifndef __SLAVE_QOS_CONTROLLERS_NOOP_HPP__
#define __SLAVE_QOS_CONTROLLERS_NOOP_HPP__

#include <mesos/slave/qos_controller.hpp>

#include <stout/lambda.hpp>

#include <process/owned.hpp>

namespace mesos {
namespace internal {
namespace slave {

// Forward declaration.
class NoopQoSControllerProcess;


// The NOOP QoS Controller is an empty stub, which returns a future
// which is never satisfied. Thus, the slave will never carry out any
// corrections.
class NoopQoSController : public mesos::slave::QoSController
{
public:
  ~NoopQoSController() override;

  Try<Nothing> initialize(
      const lambda::function<process::Future<ResourceUsage>()>& usage) override;

  process::Future<std::list<mesos::slave::QoSCorrection>> corrections()
    override;

protected:
  process::Owned<NoopQoSControllerProcess> process;
};


} // namespace slave {
} // namespace internal {
} // namespace mesos {

#endif // __SLAVE_QOS_CONTROLLERS_NOOP_HPP__