drcl.intserv
Class SchedulerConfig

java.lang.Object
  drcl.comp.Contract
      drcl.intserv.SchedulerConfig

public class SchedulerConfig

extends Contract

The SchedulerConfiguration contract. This contract defines three services at the reactor:

AdspecProcessing

The initiator sends a SpecAd and in response, the reactor sends back the upated adspec.

FlowspecAddition

The initiator sends a message that consists of:

1. an integer of value 0 (the "add" command);
2. the set of ToS values (long[]) associated with the flowspec, could be null;
3. the set of ToS mask values (long[]) associated with the ToS values, could be null, and
4. the flowspec (SpecFlow).

In response, the reactor returns null and the handle number is set in the flowspec if the flowspec is sucessfully installed, or returns another flowspec that reflects the availability of the resources if failed.

FlowspecModification

The initiator sends a message that has the same format as a FlowspecAddition except that the first field is an integer of value 1 (the "modify" command). The second and the third fields are not used. The response is the same as that of FlowspecAddition. In case that the request is failed, the previous installation is intact.

FlowspecRemoval

The initiator sends a message that consists of:

1. an integer of value 2 (the "remove" command);
2. the handle of the flowspec to be removed

In response, the reactor removes the flowspec and returns the removed flowspec.

FlowspecQuery

The initiator sends a message that has the same format as a FlowspecRemoval except that the first field is an integer of value 3 (the "query" command). Use negative handle to query all the installed flowspecs. In response, the reactor returns the queried flowspec(s).

Version:

1.0, 6/2001

Author:

Hung-ying Tyan

Nested Class Summary

static class

SchedulerConfig.Message

Field Summary

static int	ADD
static SchedulerConfig	INSTANCE
static int	MODIFY
static int	QUERY
static int	REMOVE

Fields inherited from class drcl.comp.Contract

Role_INITIATOR, Role_PEER, Role_REACTOR

Constructor Summary

SchedulerConfig()

SchedulerConfig(int role_)

Method Summary

static SpecFlow	add(long[] tos_, long[] tosmask_, SpecFlow fspec_, Port out_)
java.lang.Object	getContractContent() Returns the content of this contract (format?).
java.lang.String	getName()
static SpecFlow	modify(SpecFlow fspec_, Port out_)
static SpecFlow	query(int handle_, Port out_)
static SpecFlow[]	queryAll(Port out_)
static SpecFlow	remove(int handle_, Port out_)

Methods inherited from class drcl.comp.Contract

getRole, match, setRole

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final SchedulerConfig INSTANCE

ADD

public static final int ADD

See Also:

Constant Field Values

MODIFY

public static final int MODIFY

See Also:

Constant Field Values

REMOVE

public static final int REMOVE

See Also:

Constant Field Values

QUERY

public static final int QUERY

See Also:

Constant Field Values

Constructor Detail

SchedulerConfig

public SchedulerConfig()

SchedulerConfig

public SchedulerConfig(int role_)

Method Detail

getName

public java.lang.String getName()

Specified by:

getName in class Contract

getContractContent

public java.lang.Object getContractContent()

Description copied from class: Contract

Returns the content of this contract (format?).

Specified by:

getContractContent in class Contract

add

public static SpecFlow add(long[] tos_,
                           long[] tosmask_,
                           SpecFlow fspec_,
                           Port out_)

modify

public static SpecFlow modify(SpecFlow fspec_,
                              Port out_)

remove

public static SpecFlow remove(int handle_,
                              Port out_)

query

public static SpecFlow query(int handle_,
                             Port out_)

queryAll

public static SpecFlow[] queryAll(Port out_)