text: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef __SLAVE_CONSTANTS_HPP__
  #define __SLAVE_CONSTANTS_HPP__
  
  #include <stdint.h>
  
  #include <stout/bytes.hpp>
  #include <stout/duration.hpp>
  
  namespace mesos {
  namespace internal {
  namespace slave {
  
  // TODO(bmahler): It appears there may be a bug with gcc-4.1.2 in which these
  // duration constants were not being initialized when having static linkage.
  // This issue did not manifest in newer gcc's. Specifically, 4.2.1 was ok.
  // So we've moved these to have external linkage but perhaps in the future
  // we can revert this.
  
  extern const Duration EXECUTOR_REGISTRATION_TIMEOUT;
  extern const Duration EXECUTOR_SHUTDOWN_GRACE_PERIOD;
  extern const Duration EXECUTOR_REREGISTER_TIMEOUT;
  extern const Duration RECOVERY_TIMEOUT;
  extern const Duration STATUS_UPDATE_RETRY_INTERVAL_MIN;
  extern const Duration STATUS_UPDATE_RETRY_INTERVAL_MAX;
  extern const Duration GC_DELAY;
  extern const Duration DISK_WATCH_INTERVAL;
  extern const Duration RESOURCE_MONITORING_INTERVAL;
  
  // Minimum free disk capacity enforced by the garbage collector.
  extern const double GC_DISK_HEADROOM;
  
  // Maximum number of completed frameworks to store in memory.
  extern const uint32_t MAX_COMPLETED_FRAMEWORKS;
  
  // Maximum number of completed executors per framework to store in memory.
  extern const uint32_t MAX_COMPLETED_EXECUTORS_PER_FRAMEWORK;
  
  // Maximum number of completed tasks per executor to store in memory.
  extern const uint32_t MAX_COMPLETED_TASKS_PER_EXECUTOR;
  
  // Default cpus offered by the slave.
  extern const double DEFAULT_CPUS;
  
  // Default memory offered by the slave.
  extern const Bytes DEFAULT_MEM;
  
  // Default disk space offered by the slave.
  extern const Bytes DEFAULT_DISK;
  
  // Default ports range offered by the slave.
  extern const std::string DEFAULT_PORTS;
  
  } // namespace slave {
  } // namespace internal {
  } // namespace mesos {
  
  #endif // __SLAVE_CONSTANTS_HPP__
  