Package haizea :: Package core :: Module leases :: Class Duration

Class Duration

A duration

This class is just a wrapper around five DateTimes. When
dealing with durations in Haizea (such as the requested
duration for a lease), we want to keep track of the following:

- The requested duration
- The accumulated duration (when the entire duration of
the lease can't be scheduled without interrumption, this
keeps track of how much duration has been fulfilled so far)
- The actual duration (which might not be the same as the
requested duration)

For the purposes of simulation, we also want to keep track
of the "original" duration (since the requested duration
can be modified to simulate certain overheads) and the
"known" duration (when simulating lease workloads, this is
the actual duration of the lease, which is known a posteriori).

Instance Methods

[hide private]

__init__(self, requested, known=None)
Constructor

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incr(self, t)
Increments the requested duration by an amount.

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incr_by_percent(self, pct)
Increments the requested duration by a percentage.

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accumulate_duration(self, t)
Increments the accumulated duration by an amount.

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get_remaining_duration(self)
Returns the amount of time required to fulfil the entire requested duration of the lease.

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get_remaining_known_duration(self)
Returns the amount of time required to fulfil the entire known duration of the lease.

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__repr__(self)
Returns a string representation of the Duration

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Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __str__, __subclasshook__