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Coordinator
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SUMMARY: NESTED | FIELD | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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<H2>
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coordination</FONT>
<BR>
Aspect Coordinator</H2>
<PRE>
java.lang.Object
<IMG SRC="../resources/inherit.gif" ALT="extended by"><B>coordination.Coordinator</B>
</PRE>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../spacewar/GameSynchronization.html" title="class in spacewar">GameSynchronization</A>, <A HREF="../spacewar/RegistrySynchronization.html" title="class in spacewar">RegistrySynchronization</A></DD>
</DL>
<HR>
<DL>
<DT>public abstract class <B>Coordinator</B><DT>extends java.lang.Object</DL>
<P>
The Coordinator class provides the basic functionality for synchronizing
and coordinating different threads upon entering and exiting methods.
It can be used in two different ways:
1) by instantiating regular coordinator objects that are used by aspects; or
2) by extending it (sub-classing) with coordinator aspects.
<P>
Method invocations are the smallest units for defining critical sections
and pre-conditions. The use of coordinators, either regular objects or aspect
instances, should always end up by invoking guardedEntry(...) in a
before weave and guardedExit(...) in an after weave for all methods that
need coordination. guardedEntry and guardedExit are the methods that
actually manage the synchronization and coordination constraints given
by their parameters and by pre-existent exclusion markers.
<P>
The synchronization of threads for the execution of critical section
methods in an object is done by marking those methods as self- and/or
mutually-exclusive (addSelfex, addMutex).
Just by itself, addSelfex("M") does not enforce the self-exclusion
of method M - enforcement is done by invoking guardedEntry before
M is executed. Similarly, addMutex(new String[] {"M1", "M2"}) does
not enforce the mutual exclusion between methods M1 and M2.
<P>
A guardedEntry on a method that has been marked as self-exclusive
ensures that the method is executed in the invoked object by only one thread
at a time. A guardedEntry on a method that has been marked has mutually-
exclusive with other methods ensures that the execution of that method
by a thread in the invoked object temporarily blocks the execution by
other threads of the methods that are in the same mutex set.
<P>
The coordination of threads, i.e. their explicit suspension and
resumption, is done through the use of pre-conditions and coordination
actions that are passed as parameters to guardedEntry and guardedExit
with the form of anonymous classes.
<P>
<P>
<HR>
<P>
<!-- ======== NESTED CLASS SUMMARY ======== -->
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="1"CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#CCCCFF"><FONT SIZE="+2"><B>Pointcut Summary</B></FONT></TD></TR>
<TR><TD WIDTH="1%"><FONT SIZE=-1><TT>protected</TT></FONT></TD>
<TD><TT><A HREF="#synchronizationPoint()">synchronizationPoint()</A></TT><BR> </TR></TD>
</TABLE><P>
<!-- ======== ADVICE SUMMARY ======= -->
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="1"CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#CCCCFF"><FONT SIZE="+2"><B>Advice Summary</B></FONT></TD></TR>
<TR><TD><A HREF="#before(): synchronizationPoint.."><TT><B>before(): synchronizationPoint..</B></TT></A><BR> <TABLE WIDTH="100%" BGCOLOR=#FFFFFF><TR><TD width="10%" bgcolor="#FFD8B0"><B><FONT COLOR=000000> Advises:</b></font></td><td><A HREF="Display1.html#paintObjects(Graphics)"><tt>spacewar.Display1.paintObjects</tt></A>, <A HREF="Display2.html#paintObjects(Graphics)"><tt>spacewar.Display2.paintObjects</tt></A>, <A HREF="Game.html#resetShips()"><tt>spacewar.Game.resetShips</tt></A>, <A HREF="Game.html#newPlayer(int)"><tt>spacewar.Game.newPlayer</tt></A>, <A HREF="Game.html#newRobot(int)"><tt>spacewar.Game.newRobot</tt></A>, <A HREF="Game.html#clockTick()"><tt>spacewar.Game.clockTick</tt></A>, <A HREF="Game.html#handleCollisions()"><tt>spacewar.Game.handleCollisions</tt></A>, <A HREF="Registry.html#dummy()"><tt>spacewar.Registry.dummy</tt></A>, <A HREF="Robot.html#run()"><tt>spacewar.Robot.run</tt></A>, <A HREF="../spacewar/SpaceObject.html"><tt>spacewar.SpaceObject</tt></A>, <A HREF="SpaceObject.html#die()"><tt>spacewar.SpaceObject.die</tt></A></B></FONT></TD></TR></TABLE>
</TR></TD>
</TD></TR><TD>
<TR><TD><A HREF="#after(): synchronizationPoint.."><TT><B>after(): synchronizationPoint..</B></TT></A><BR> <TABLE WIDTH="100%" BGCOLOR=#FFFFFF><TR><TD width="10%" bgcolor="#FFD8B0"><B><FONT COLOR=000000> Advises:</b></font></td><td><A HREF="Display1.html#paintObjects(Graphics)"><tt>spacewar.Display1.paintObjects</tt></A>, <A HREF="Display2.html#paintObjects(Graphics)"><tt>spacewar.Display2.paintObjects</tt></A>, <A HREF="Game.html#resetShips()"><tt>spacewar.Game.resetShips</tt></A>, <A HREF="Game.html#newPlayer(int)"><tt>spacewar.Game.newPlayer</tt></A>, <A HREF="Game.html#newRobot(int)"><tt>spacewar.Game.newRobot</tt></A>, <A HREF="Game.html#clockTick()"><tt>spacewar.Game.clockTick</tt></A>, <A HREF="Game.html#handleCollisions()"><tt>spacewar.Game.handleCollisions</tt></A>, <A HREF="Registry.html#dummy()"><tt>spacewar.Registry.dummy</tt></A>, <A HREF="Robot.html#run()"><tt>spacewar.Robot.run</tt></A>, <A HREF="../spacewar/SpaceObject.html"><tt>spacewar.SpaceObject</tt></A>, <A HREF="SpaceObject.html#die()"><tt>spacewar.SpaceObject.die</tt></A></B></FONT></TD></TR></TABLE>
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</TD></TR><TD>
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<B>Constructor Summary</B></FONT></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../coordination/Coordinator.html#Coordinator()">Coordinator</A></B>()</CODE>
<BR>
</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#addMutex(java.lang.String[])">addMutex</A></B>(java.lang.String[] methNames)</CODE>
<BR>
Takes an array of multi-part method names and marks those
methods as mutually exclusive.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#addSelfex(java.lang.String)">addSelfex</A></B>(java.lang.String methName)</CODE>
<BR>
Takes a multi-part method name (eg "BoundedBuffer.put")
and marks that method as self-exclusive.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedEntry(java.lang.String)">guardedEntry</A></B>(java.lang.String methName)</CODE>
<BR>
This method is the guard for enforcing all synchronization and
coordination constraints of a given method, and it should be called
just before the method is executed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedEntry(java.lang.String, coordination.Condition)">guardedEntry</A></B>(java.lang.String methName,
<A HREF="../coordination/Condition.html" title="interface in coordination">Condition</A> condition)</CODE>
<BR>
Just like guardedEntry(String methName), but the given method is executed
only when the given condition is true.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedEntry(java.lang.String, coordination.Condition, coordination.CoordinationAction)">guardedEntry</A></B>(java.lang.String methName,
<A HREF="../coordination/Condition.html" title="interface in coordination">Condition</A> condition,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action)</CODE>
<BR>
Just like guardedEntry(String methName), but the given method is executed
only when the given condition is true; the additional
coordination action that is executed before the given method is
executed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedEntry(java.lang.String, coordination.CoordinationAction)">guardedEntry</A></B>(java.lang.String methName,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action)</CODE>
<BR>
Just like guardedEntry(String methName), but with an additional
coordination action that is executed before the given method is
executed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedEntryWithTimeout(java.lang.String, coordination.Condition, coordination.CoordinationAction, long)">guardedEntryWithTimeout</A></B>(java.lang.String methName,
<A HREF="../coordination/Condition.html" title="interface in coordination">Condition</A> condition,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action,
long millis)</CODE>
<BR>
This method is similar to guardedEntry, but it takes
an additional parameter - the milliseconds after which any suspension
will abort with a timeout.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedEntryWithTimeout(java.lang.String, coordination.Condition, long)">guardedEntryWithTimeout</A></B>(java.lang.String methName,
<A HREF="../coordination/Condition.html" title="interface in coordination">Condition</A> condition,
long millis)</CODE>
<BR>
This method is similar to guardedEntry, but it takes
an additional parameter - the milliseconds after which any suspension
will abort with a timeout.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedEntryWithTimeout(java.lang.String, coordination.CoordinationAction, long)">guardedEntryWithTimeout</A></B>(java.lang.String methName,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action,
long millis)</CODE>
<BR>
This method is similar to guardedEntry, but it takes
an additional parameter - the milliseconds after which any suspension
will abort with a timeout.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedEntryWithTimeout(java.lang.String, long)">guardedEntryWithTimeout</A></B>(java.lang.String methName,
long millis)</CODE>
<BR>
This method is similar to guardedEntry, but it takes
an additional parameter - the milliseconds after which any suspension
will abort with a timeout.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedExit(java.lang.String)">guardedExit</A></B>(java.lang.String methName)</CODE>
<BR>
This method provides the means for updating all synchronization and
coordination state after the execution of a given method, and it should be
called after the method is executed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#guardedExit(java.lang.String, coordination.CoordinationAction)">guardedExit</A></B>(java.lang.String methName,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action)</CODE>
<BR>
Just like guardedExit(String methName) but with an additional
coordination action that is executed.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#removeMutex(java.lang.String[])">removeMutex</A></B>(java.lang.String[] methNames)</CODE>
<BR>
Takes an array of multi-part method names that correspond
to an existing mutex set and remove the mutual exclusion constraint.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../coordination/Coordinator.html#removeSelfex(java.lang.String)">removeSelfex</A></B>(java.lang.String methName)</CODE>
<BR>
Takes a multi-part method name (e.g.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.Object</B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
<P>
<P>
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</TABLE><A NAME="synchronizationPoint()"><!-- --></A>
<H3>synchronizationPoint()</H3><P><P><P>
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<H3>before</H3><P><TT><B>before(): synchronizationPoint..</B></TT>
<P><P><TABLE WIDTH="100%" BGCOLOR=#FFFFFF><TR><TD width="10%" bgcolor="#FFD8B0"><B><FONT COLOR=000000> Advises:</b></font></td><td><A HREF="Display1.html#paintObjects(Graphics)"><tt>spacewar.Display1.paintObjects</tt></A>, <A HREF="Display2.html#paintObjects(Graphics)"><tt>spacewar.Display2.paintObjects</tt></A>, <A HREF="Game.html#resetShips()"><tt>spacewar.Game.resetShips</tt></A>, <A HREF="Game.html#newPlayer(int)"><tt>spacewar.Game.newPlayer</tt></A>, <A HREF="Game.html#newRobot(int)"><tt>spacewar.Game.newRobot</tt></A>, <A HREF="Game.html#clockTick()"><tt>spacewar.Game.clockTick</tt></A>, <A HREF="Game.html#handleCollisions()"><tt>spacewar.Game.handleCollisions</tt></A>, <A HREF="Registry.html#dummy()"><tt>spacewar.Registry.dummy</tt></A>, <A HREF="Robot.html#run()"><tt>spacewar.Robot.run</tt></A>, <A HREF="../spacewar/SpaceObject.html"><tt>spacewar.SpaceObject</tt></A>, <A HREF="SpaceObject.html#die()"><tt>spacewar.SpaceObject.die</tt></A></B></FONT></TD></TR></TABLE>
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<P><HR>
<A NAME="after(): synchronizationPoint.."><!-- --></A>
<H3>after</H3><P><TT><B>after(): synchronizationPoint..</B></TT>
<P><P><TABLE WIDTH="100%" BGCOLOR=#FFFFFF><TR><TD width="10%" bgcolor="#FFD8B0"><B><FONT COLOR=000000> Advises:</b></font></td><td><A HREF="Display1.html#paintObjects(Graphics)"><tt>spacewar.Display1.paintObjects</tt></A>, <A HREF="Display2.html#paintObjects(Graphics)"><tt>spacewar.Display2.paintObjects</tt></A>, <A HREF="Game.html#resetShips()"><tt>spacewar.Game.resetShips</tt></A>, <A HREF="Game.html#newPlayer(int)"><tt>spacewar.Game.newPlayer</tt></A>, <A HREF="Game.html#newRobot(int)"><tt>spacewar.Game.newRobot</tt></A>, <A HREF="Game.html#clockTick()"><tt>spacewar.Game.clockTick</tt></A>, <A HREF="Game.html#handleCollisions()"><tt>spacewar.Game.handleCollisions</tt></A>, <A HREF="Registry.html#dummy()"><tt>spacewar.Registry.dummy</tt></A>, <A HREF="Robot.html#run()"><tt>spacewar.Robot.run</tt></A>, <A HREF="../spacewar/SpaceObject.html"><tt>spacewar.SpaceObject</tt></A>, <A HREF="SpaceObject.html#die()"><tt>spacewar.SpaceObject.die</tt></A></B></FONT></TD></TR></TABLE>
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<P><!-- ============ FIELD DETAIL =========== -->
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<A NAME="Coordinator()"><!-- --></A><H3>
Coordinator</H3>
<PRE>
public <B>Coordinator</B>()</PRE>
<DL>
<DD>
<P>
</DL>
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<A NAME="addSelfex(java.lang.String)"><!-- --></A><H3>
addSelfex</H3>
<PRE>
public void <B>addSelfex</B>(java.lang.String methName)</PRE>
<DL>
<DD>
Takes a multi-part method name (eg "BoundedBuffer.put")
and marks that method as self-exclusive.
No checks are made with respect to the existence of the method
whose name is given.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="removeSelfex(java.lang.String)"><!-- --></A><H3>
removeSelfex</H3>
<PRE>
public void <B>removeSelfex</B>(java.lang.String methName)</PRE>
<DL>
<DD>
Takes a multi-part method name (e.g. "BoundedBuffer.put")
and removes that method from the list of self-exclusive methods.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="addMutex(java.lang.String[])"><!-- --></A><H3>
addMutex</H3>
<PRE>
public void <B>addMutex</B>(java.lang.String[] methNames)</PRE>
<DL>
<DD>
Takes an array of multi-part method names and marks those
methods as mutually exclusive.
No checks are made with respect to the existence of the methods
whose names are given.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="removeMutex(java.lang.String[])"><!-- --></A><H3>
removeMutex</H3>
<PRE>
public void <B>removeMutex</B>(java.lang.String[] methNames)</PRE>
<DL>
<DD>
Takes an array of multi-part method names that correspond
to an existing mutex set and remove the mutual exclusion constraint.
If the given mutex set does not exist, removeMutex does nothing.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="guardedEntry(java.lang.String)"><!-- --></A><H3>
guardedEntry</H3>
<PRE>
public void <B>guardedEntry</B>(java.lang.String methName)</PRE>
<DL>
<DD>
This method is the guard for enforcing all synchronization and
coordination constraints of a given method, and it should be called
just before the method is executed.
In this form, only the method name is given. The only constraints
checked are the exclusion constraints.
If the method was previousely marked as selfex (through addSelfex),
guardedEntry ensures that the method is executed only when no other
thread is executing it.
If the method was previousely marked as being in one or more mutex
sets, guardedEntry ensures that the method is executed only when no other
thread is executing any of the methods with which the give method is
mutexed.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="guardedEntry(java.lang.String, coordination.Condition)"><!-- --></A><H3>
guardedEntry</H3>
<PRE>
public void <B>guardedEntry</B>(java.lang.String methName,
<A HREF="../coordination/Condition.html" title="interface in coordination">Condition</A> condition)</PRE>
<DL>
<DD>
Just like guardedEntry(String methName), but the given method is executed
only when the given condition is true.
guardedEntry is the guard for enforcing all synchronization and
coordination constraints of a given method, and it should be called
just before the method is executed.
In this form, the method name is given along with a condition.
The constraints checked are the exclusion constraints and whether
the given condition is true.
If the method was previousely marked as selfex (through addSelfex),
guardedEntry ensures that the method is executed only when no other
thread is executing it.
If the method was previousely marked as being in one or more mutex
sets, guardedEntry ensures that the method is executed only when no other
thread is executing any of the methods with which the give method is
mutexed.
If the condition is false, guardedEntry suspends the current thread.
That thread remains suspended until the condition becomes true, in
which case all constraints are rechecked before the method is executed.
When all exclusion constraints are checked and the given condition is
true, the given method is executed.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="guardedEntry(java.lang.String, coordination.CoordinationAction)"><!-- --></A><H3>
guardedEntry</H3>
<PRE>
public void <B>guardedEntry</B>(java.lang.String methName,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action)</PRE>
<DL>
<DD>
Just like guardedEntry(String methName), but with an additional
coordination action that is executed before the given method is
executed.
guardedEntry is the guard for enforcing all synchronization and
coordination constraints of a given method, and it should be called
just before the method is executed.
In this form, the method name is given along with a coordination action.
The only constraints checked are the exclusion constraints.
If the method was previousely marked as selfex (through addSelfex),
guardedEntry ensures that the method is executed only when no other
thread is executing it.
If the method was previousely marked as being in one or more mutex
sets, guardedEntry ensures that the method is executed only when no other
thread is executing any of the methods with which the give method is
mutexed.
The given coordination action is executed just before the given method
is executed.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="guardedEntry(java.lang.String, coordination.Condition, coordination.CoordinationAction)"><!-- --></A><H3>
guardedEntry</H3>
<PRE>
public void <B>guardedEntry</B>(java.lang.String methName,
<A HREF="../coordination/Condition.html" title="interface in coordination">Condition</A> condition,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action)</PRE>
<DL>
<DD>
Just like guardedEntry(String methName), but the given method is executed
only when the given condition is true; the additional
coordination action that is executed before the given method is
executed.
guardedEntry is the guard for enforcing all synchronization and
coordination constraints of a given method, and it should be called
just before the method is executed.
In this form, the method name is given along with a condition and
a coordination action.
The constraints checked are the exclusion constraints and whether the
given condition is true.
If the method was previousely marked as selfex (through addSelfex),
guardedEntry ensures that the method is executed only when no other
thread is executing it.
If the method was previousely marked as being in one or more mutex
sets, guardedEntry ensures that the method is executed only when no other
thread is executing any of the methods with which the give method is
mutexed.
If the condition is false, guardedEntry suspends the current thread.
That thread remains suspended until the condition becomes true, in
which case all constraints are rechecked before the method is executed.
When all exclusion constraints are checked and the given condition is
true, the given method is executed.
The given coordination action is executed just before the given method
is executed.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="guardedEntryWithTimeout(java.lang.String, long)"><!-- --></A><H3>
guardedEntryWithTimeout</H3>
<PRE>
public void <B>guardedEntryWithTimeout</B>(java.lang.String methName,
long millis)
throws <A HREF="../coordination/TimeoutException.html" title="class in coordination">TimeoutException</A></PRE>
<DL>
<DD>
This method is similar to guardedEntry, but it takes
an additional parameter - the milliseconds after which any suspension
will abort with a timeout.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../coordination/TimeoutException.html" title="class in coordination">TimeoutException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="guardedEntryWithTimeout(java.lang.String, coordination.Condition, long)"><!-- --></A><H3>
guardedEntryWithTimeout</H3>
<PRE>
public void <B>guardedEntryWithTimeout</B>(java.lang.String methName,
<A HREF="../coordination/Condition.html" title="interface in coordination">Condition</A> condition,
long millis)
throws <A HREF="../coordination/TimeoutException.html" title="class in coordination">TimeoutException</A></PRE>
<DL>
<DD>
This method is similar to guardedEntry, but it takes
an additional parameter - the milliseconds after which any suspension
will abort with a timeout.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../coordination/TimeoutException.html" title="class in coordination">TimeoutException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="guardedEntryWithTimeout(java.lang.String, coordination.CoordinationAction, long)"><!-- --></A><H3>
guardedEntryWithTimeout</H3>
<PRE>
public void <B>guardedEntryWithTimeout</B>(java.lang.String methName,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action,
long millis)
throws <A HREF="../coordination/TimeoutException.html" title="class in coordination">TimeoutException</A></PRE>
<DL>
<DD>
This method is similar to guardedEntry, but it takes
an additional parameter - the milliseconds after which any suspension
will abort with a timeout.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../coordination/TimeoutException.html" title="class in coordination">TimeoutException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="guardedEntryWithTimeout(java.lang.String, coordination.Condition, coordination.CoordinationAction, long)"><!-- --></A><H3>
guardedEntryWithTimeout</H3>
<PRE>
public void <B>guardedEntryWithTimeout</B>(java.lang.String methName,
<A HREF="../coordination/Condition.html" title="interface in coordination">Condition</A> condition,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action,
long millis)
throws <A HREF="../coordination/TimeoutException.html" title="class in coordination">TimeoutException</A></PRE>
<DL>
<DD>
This method is similar to guardedEntry, but it takes
an additional parameter - the milliseconds after which any suspension
will abort with a timeout.
<P>
<DD><DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="../coordination/TimeoutException.html" title="class in coordination">TimeoutException</A></CODE></DL>
</DD>
</DL>
<HR>
<A NAME="guardedExit(java.lang.String)"><!-- --></A><H3>
guardedExit</H3>
<PRE>
public void <B>guardedExit</B>(java.lang.String methName)</PRE>
<DL>
<DD>
This method provides the means for updating all synchronization and
coordination state after the execution of a given method, and it should be
called after the method is executed.
In this form, only the method name is given.
The synchronization state for self- and mutual-exclusion is
automatically upadted.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="guardedExit(java.lang.String, coordination.CoordinationAction)"><!-- --></A><H3>
guardedExit</H3>
<PRE>
public void <B>guardedExit</B>(java.lang.String methName,
<A HREF="../coordination/CoordinationAction.html" title="interface in coordination">CoordinationAction</A> action)</PRE>
<DL>
<DD>
Just like guardedExit(String methName) but with an additional
coordination action that is executed.
guardedExit provides the means for updating all synchronization and
coordination state after the execution of a given method, and it should be
called after the method is executed.
In this form, the method name is given along with a coordination action.
The synchronization state for self- and mutual-exclusion is
automatically upadted.
The given coordination action is executed.
<P>
<DD><DL>
</DL>
</DD>
</DL>
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