GetDistroQueueInfo returns the distroQueueInfo for the given set of tasks having set the task.ExpectedDuration for each task.

The old Task finderDBTaskFinder, with the dependency check implemented in Go, instead of using $graphLookup.

MakeUnit constructs a new unit, caching a reference to the distro in the unit.

NewCmpBasedTaskComparator returns a new task prioritizer, using the default set of comparators as well as the setup functions necessary for those comparators.

NewUnit constructs a new Unit container for a task.

PersistTaskQueue saves the task queue to the database.

PopulateCaches runs setup functions and is used by the new/tunable scheduler to reprocess tasks before running the new planner.

PrepareTasksForPlanning takes a list of tasks for a distro and returns a TaskPlan, grouping tasks into the appropriate units.

SpawnHosts calls out to the embedded Manager to spawn hosts, and takes in a map of distro -> number of hosts to spawn for the distro.

CmpBasedTaskComparator runs the tasks through a slice of comparator functions determining which is more important.

CmpBasedTaskQueues represents the three types of queues that are created for merging together into one queue.

TaskList implements sort.Interface on top of a slice of tasks.

TaskPlan provides a sortable interface on top of a slice of schedulable units, with ordering of units provided by the implementation of SortingValueBreakdown.

Unit is a holder of a group of related tasks which should be scheculded together.

TaskPrioritizer is responsible for taking in a slice of tasks, and ordering them according to which should be run first.

HostAllocator is responsible for determining how many new hosts should be spun up.

StringSet provides simple tools for managing sets of strings.

UnitCache stores an unordered collection of schedulable units.