MaxDecayTaskAdvocate Class Reference

Inheritance diagram for MaxDecayTaskAdvocate:

[legend]Collaboration diagram for MaxDecayTaskAdvocate:

[legend]List of all members.

Detailed Description

An ExactTaskAdvocate that will always advise the maximum required processing time it has ever seen.

Definition at line 27 of file MaxDecayTaskAdvocate.hh.

Public Member Functions

virtual void ReportCPU (Broker::RealTimeTask_ptr rtt, CORBA::ULong status, CORBA::ULong advice) throw (CORBA::SystemException)

Compute a new processing time advice from the given status value.

Private Attributes

CORBA::ULong md_LastAdvice

The last advice reported by this advocate.

CORBA::ULong md_SubMax

The maximum observed usage that is still below the last advice given.

unsigned int md_Decay

The number of periods left before the reservation will be dropped to the value of md_SubMax.

Member Function Documentation

void MaxDecayTaskAdvocate::ReportCPU ( Broker::RealTimeTask_ptr rtt,

CORBA::ULong status,

CORBA::ULong advice

) throw (CORBA::SystemException) [virtual]

Compute a new processing time advice from the given status value.
The max implementation will compare the advice reported by the parent class against the current processing time and return the maximum of the two.

Parameters:

rtt The task object that was actually added to the manager.

status The CPU usage of the task in microseconds.

advice The amount of CPU time, in microseconds, that the application would like for the next period.

Returns:
A processing time that will satisfy all requirements that have been encountered so far.

Exceptions:

CORBA::BAD_INV_ORDER if the method is called without BeginCPUScheduling() being called first.

Reimplemented from RealTimeTaskDelegateImpl.
Definition at line 38 of file MaxDecayTaskAdvocate.cc.
References DECAY_AFTER, max, RealTimeTaskDelegateImpl::ReportCPU(), and rtt.

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The documentation for this class was generated from the following files:

Generated on Mon Dec 1 16:30:37 2003 for CPU Broker by

1.3.4


Public Member Functions
virtual void	ReportCPU (Broker::RealTimeTask_ptr rtt, CORBA::ULong status, CORBA::ULong advice) throw (CORBA::SystemException)
	Compute a new processing time advice from the given status value.
Private Attributes
CORBA::ULong	md_LastAdvice
	The last advice reported by this advocate.
CORBA::ULong	md_SubMax
	The maximum observed usage that is still below the last advice given.
unsigned int	md_Decay
	The number of periods left before the reservation will be dropped to the value of md_SubMax.