THE JR PROGRAMMING LANGUAGE phần 5 ppsx
THE JR PROGRAMMING LANGUAGE phần 5 ppsx
... on each virtual
machine. The program outputs first the number 5 for the first
writex
(on the
main virtual machine)—and then the number 10—for the second writex (on
the second virtual machine).
This ... and then immediately
requests the fork’s return. To reduce the number of messages exchanged, the
request for the fork’s return could be combined with the passing of...
THE JR PROGRAMMING LANGUAGE phần 1 pps
... JR
syntax. The key syntactic items we will use are summarized in the following
table.
1.7
Vocabulary and Notation
13
jr
jrc
jr_ rmic
jrrun
jrgo
jrgox
translates and executes a JR program
translates a JR ... noted in the Preface, source code for all programming examples and
the “given” parts of the programming exercises are available on the JR
webpage.
Preface
JR i...
THE JR PROGRAMMING LANGUAGE phần 2 potx
... processor
Exercises
51
5. 2
Consider a variant of the GeneralForm program (with empty entry and
exit protocols) in which N is 3,
S
is 1, and the critical section code is
Give all possible outputs.
5. 3
5. 4
5. 5
5. 6
5. 7
5. 8
5. 9
Give ... in their critical sections at the same time.
Consider the values taken on by the turn variables in the Bakery2 pro-
gram. Are these...
THE JR PROGRAMMING LANGUAGE phần 3 pot
... body of the loop as long as one of the two numbers is
not
EOS
. The if statement compares the two numbers, outputs the smaller, and
receives the next number in the stream from which the smaller ... two others. Workers first interact with
others that are distance 1 away, then distance 2 away, then distance 4
away, and so on. If there are n workers, the number of stages is th...
THE JR PROGRAMMING LANGUAGE phần 6 pot
... in the subclass is routed through the method
associated with the ProcOp to determine whether or not the invocation will be
passed on to a
Worker
object. If the invocation is not rejected by the ... operation
a
. The value of the first
argument of the invocation is bound to parameter m during the execution of
the block of code labeled “code for a”. Additional examples o...
THE JR PROGRAMMING LANGUAGE phần 7 ppt
... the other instances of
Point
in the same row and receives their elements of A. The
compute
process then
sends its value of Brc to other instances of Point in the same column and
receives their ... statement.
Explain why the receive statement cannot be simplified to the fol-
lowing, assuming the declaration of rowval is changed to omit the
sender field:
15. 8
15. 9
Suppose...
THE JR PROGRAMMING LANGUAGE phần 8 potx
... strips the tours should go from the top to
the bottom; in even-numbered strips they should go from the bottom to
the top. Once tours have been found for all strips, they are connected
together.
17.13
Write ... communicate with
each other.
The main class and the results class are identical to those in the previous
solution. See the previous sections for their code.
As in the...
THE JR PROGRAMMING LANGUAGE phần 9 pdf
... of the ball. If the new location is at the top or the bottom of the board, it
in effect makes the ball “bounce off” the border. If the new location of the ball is
off the board to the left or the ... board.)
clicking the mouse within the board will set the focus (for the key-
board) to the board.
20 .5
Modify the BnB program (or one of its variants develop...
THE JR PROGRAMMING LANGUAGE Concurrent Programming in an Extended Java ppt
... has the following general form:
The keyword receive, the parentheses, and the commas are JR tokens, so they
are typeset in Courier. The items op_id and variable are non-terminals in the
JR grammar. ... JR
syntax. The key syntactic items we will use are summarized in the following
table.
1.7
Vocabulary and Notation
13
jr
jrc
jr_ rmic
jrrun
jrgo
jrgox
translates and exe...
THE JR PROGRAMMING LANGUAGE Concurrent Programming in an Extended Java pptx
... Class
19.3
Observations
Exercises
211
212
2 15
217
220
223
227
228
232
236
240
241
247
248
251
254
258
263
264
266
272
280
283
283
2 85
2 85
2 85
286
288
290
291
Preface
JR is a language for concurrent programming. It is an imperative language
that ... on the standard output file. In JR, the
following program does the trick:
It is nearly identical to the equivalent p...
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