Package jline.lang.state

Class ReplyBlock

java.lang.Object

jline.lang.state.ReplyBlock

All Implemented Interfaces:

Serializable

public class ReplyBlock
extends Object
implements Serializable

Layout of, and accessors for, the synchronous-call (REPLY signal) blocked-server block that a node carries in its local-variable state.

A job of a class r with sn.syncreply(r) >= 0 makes a synchronous call: it leaves the station for the callee but KEEPS its server, which stays held until the matching REPLY signal class comes back. The held servers are not derivable from the marginal state (the job is at the callee, not here), so they are counted per calling class in this block. LDES keys the same information by job id (Solver_ssj.pendingReplyMap); a CTMC has no job identity, so it carries counts.

The block trails the modulation, routing and node blocks of sn.nvars (columns 0..R-1, R..2R-1 and 2R), occupying columns 2R+1+r. Appending keeps every existing nvars reader valid, and the columns stay zero-width for models without reply signals, so no other model changes state width.

Port of MATLAB State.replyBlockInfo and State.replyBlocked.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ReplyBlock.Info	Layout of the reply block at one node.

Method Summary

Modifier and Type	Method	Description
static Matrix	blocked(NetworkStruct sn, int ind, Matrix spaceVar)	Per-class counts of servers held at node ind by jobs that made a synchronous call and are waiting for their REPLY signal.
static Matrix	blockedTotal(NetworkStruct sn, int ind, Matrix spaceVar)	Total number of servers held for pending replies, one entry per row of spaceVar.
static boolean	holds(NetworkStruct sn, int ind)	True iff node ind holds servers for any synchronous call.
static ReplyBlock.Info	info(NetworkStruct sn, int ind)	Layout of the reply block that node ind carries.

Methods inherited from class java.lang.Object

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

Method Details

info

public static ReplyBlock.Info info(NetworkStruct sn,
 int ind)

Layout of the reply block that node ind carries.

Parameters:

sn - network structure

ind - node index

Returns:

the block layout; width 0 when the node holds no synchronous call

holds

public static boolean holds(NetworkStruct sn,
 int ind)

True iff node ind holds servers for any synchronous call.

Parameters:

sn - network structure

ind - node index

Returns:

true when the node carries a reply block

blocked

public static Matrix blocked(NetworkStruct sn,
 int ind,
 Matrix spaceVar)

Per-class counts of servers held at node ind by jobs that made a synchronous call and are waiting for their REPLY signal.

Parameters:

sn - network structure

ind - node index

spaceVar - local-variable part of the state, one row per state

Returns:

(rows x nclasses) counts; all zero when the node carries no block

blockedTotal

public static Matrix blockedTotal(NetworkStruct sn,
 int ind,
 Matrix spaceVar)

Total number of servers held for pending replies, one entry per row of spaceVar. Zero when the node carries no synchronous-call block, so callers can subtract it from the server count unconditionally.

Parameters:

sn - network structure

ind - node index

spaceVar - local-variable part of the state, one row per state

Returns:

(rows x 1) totals