devices.hpp

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#ifndef __CGROUPS_ISOLATOR_SUBSYSTEMS_DEVICES_HPP__
#define __CGROUPS_ISOLATOR_SUBSYSTEMS_DEVICES_HPP__

#include <string>
#include <vector>

#include <process/owned.hpp>

#include <stout/hashset.hpp>
#include <stout/try.hpp>

#include "linux/cgroups.hpp"

#include "slave/flags.hpp"

#include "slave/containerizer/mesos/isolators/cgroups/constants.hpp"
#include "slave/containerizer/mesos/isolators/cgroups/subsystem.hpp"

namespace mesos {
namespace internal {
namespace slave {

class DevicesSubsystemProcess: public SubsystemProcess
{
public:
  static Try<process::Owned<SubsystemProcess>> create(
      const Flags& flags,
      const std::string& hierarchy);

  ~DevicesSubsystemProcess() override = default;

  std::string name() const override
  {
    return CGROUP_SUBSYSTEM_DEVICES_NAME;
  }

  process::Future<Nothing> prepare(
      const ContainerID& containerId,
      const std::string& cgroup,
      const mesos::slave::ContainerConfig& containerConfig) override;

  process::Future<Nothing> recover(
      const ContainerID& containerId,
      const std::string& cgroup) override;

  process::Future<Nothing> cleanup(
      const ContainerID& containerId,
      const std::string& cgroup) override;

private:
  DevicesSubsystemProcess(
      const Flags& flags,
      const std::string& hierarchy,
      const std::vector<cgroups::devices::Entry>& whitelistDeviceEntries);

  hashset<ContainerID> containerIds;
  std::vector<cgroups::devices::Entry> whitelistDeviceEntries;
};

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

#endif // __CGROUPS_ISOLATOR_SUBSYSTEMS_DEVICES_HPP__