public class FC extends Protocol
Modifier and Type | Class and Description |
---|---|
static class |
FC.FcHeader |
down_handler, down_prot, down_queue, down_thread, down_thread_prio, log, observer, props, stack, stats, up_handler, up_prot, up_queue, up_thread, up_thread_prio
Constructor and Description |
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FC() |
Modifier and Type | Method and Description |
---|---|
void |
down(Event evt)
An event is to be sent down the stack.
|
java.util.Map |
dumpStats() |
double |
getAverageTimeBlocked() |
long |
getMaxBlockTime() |
long |
getMaxCredits() |
long |
getMinCredits() |
double |
getMinThreshold() |
java.lang.String |
getName() |
int |
getNumberOfBlockings() |
int |
getNumberOfCreditRequestsReceived() |
int |
getNumberOfCreditRequestsSent() |
int |
getNumberOfCreditResponsesReceived() |
int |
getNumberOfCreditResponsesSent() |
long |
getTotalTimeBlocked() |
boolean |
isBlocked() |
java.lang.String |
printCredits() |
java.lang.String |
printReceiverCredits() |
java.lang.String |
printSenderCredits() |
protected void |
receiveDownEvent(Event evt)
We need to receive view changes concurrent to messages on the down events: a message might blocks, e.g.
|
void |
resetStats() |
void |
setMaxBlockTime(long t) |
void |
setMaxCredits(long max_credits) |
void |
setMinCredits(long min_credits) |
void |
setMinThreshold(double min_threshold) |
boolean |
setProperties(java.util.Properties props)
Configures the protocol initially.
|
java.lang.String |
showLastBlockingTimes() |
void |
start()
This method is called on a
Channel.connect(String) . |
void |
stop()
This method is called on a
Channel.disconnect() . |
void |
unblock()
Allows to unblock a blocked sender from an external program, e.g.
|
void |
up(Event evt)
An event was received from the layer below.
|
destroy, downThreadEnabled, enableStats, getDownProtocol, getDownQueue, getProperties, getUpProtocol, getUpQueue, handleSpecialDownEvent, init, passDown, passUp, printStats, providedDownServices, providedUpServices, receiveUpEvent, requiredDownServices, requiredUpServices, setDownProtocol, setObserver, setPropertiesInternal, setProtocolStack, setUpProtocol, startDownHandler, startUpHandler, statsEnabled, stopInternal, upThreadEnabled
public void resetStats()
resetStats
in class Protocol
public long getMaxCredits()
public void setMaxCredits(long max_credits)
public double getMinThreshold()
public void setMinThreshold(double min_threshold)
public long getMinCredits()
public void setMinCredits(long min_credits)
public boolean isBlocked()
public int getNumberOfBlockings()
public long getMaxBlockTime()
public void setMaxBlockTime(long t)
public long getTotalTimeBlocked()
public double getAverageTimeBlocked()
public int getNumberOfCreditRequestsReceived()
public int getNumberOfCreditRequestsSent()
public int getNumberOfCreditResponsesReceived()
public int getNumberOfCreditResponsesSent()
public java.lang.String printSenderCredits()
public java.lang.String printReceiverCredits()
public java.lang.String printCredits()
public java.lang.String showLastBlockingTimes()
public void unblock()
public boolean setProperties(java.util.Properties props)
Protocol
"loopback=false;unicast_inport=4444"
setProperties
in class Protocol
public void start() throws java.lang.Exception
Protocol
Channel.connect(String)
. Starts work.
Protocols are connected and queues are ready to receive events.
Will be called from bottom to top. This call will replace
the START and START_OK events.start
in class Protocol
java.lang.Exception
- Thrown if protocol cannot be started successfully. This will cause the ProtocolStack
to fail, so Channel.connect(String)
will throw an exceptionpublic void stop()
Protocol
Channel.disconnect()
. Stops work (e.g. by closing multicast socket).
Will be called from top to bottom. This means that at the time of the method invocation the
neighbor protocol below is still working. This method will replace the
STOP, STOP_OK, CLEANUP and CLEANUP_OK events. The ProtocolStack guarantees that
when this method is called all messages in the down queue will have been flushedprotected void receiveDownEvent(Event evt)
receiveDownEvent
in class Protocol
evt
- public void down(Event evt)
Protocol
passDown()
. In case of a GET_ADDRESS event (which tries to
retrieve the stack's address from one of the bottom layers), the layer may need to send
a new response event back up the stack using passUp()
.public void up(Event evt)
Protocol
passDown()
or c) the event (or another event) is sent up
the stack using passUp()
.Copyright ? 1998-2006 Bela Ban. All Rights Reserved.