C++ in a UNIX Environment Part1 Create a one-directional ring of pipe for N proc
ID: 665572 • Letter: C
Question
C++ in a UNIX Environment
Part1 Create a one-directional ring of pipe for N processes (N 1)
Part2 Create a one-directional ring of pipe for N threads
Part3 Create a one-directional ring of socket for N hosts (or all in one).
You may run N processes in one host.
Each process has two designated ports - one for sending and the other for receiving.
Each program for each process will be run with an argument telling which process (Nth process)
You may assume that each process has a table of process with 2 ports as following:
Process i
IP address
Port# to send
Port# to receive
0
127.0.0.1
9000
9001
1
127.0.0.1
9100
9101
2
127.0.0.1
9200
9201
and so on
When N processes (or threads) in a ring are up and ready, Process 0 sends a message to be received by Process 1, and so on, to back to Process 0 and done. Whenever a process sends or receives a message, it prints its process # (N), "the message", and "sent" or "received".
Process i
IP address
Port# to send
Port# to receive
0
127.0.0.1
9000
9001
1
127.0.0.1
9100
9101
2
127.0.0.1
9200
9201
and so on
Explanation / Answer
process i. IP adress.
Port# to send and port# to receive.0.127.0.0.1.9000.9001
Port# to send and port# to receive.1.127.0.0.1.9100.9101
Port# to send and port# to rceive.2.127.0.0.1.9200.9201
process0 sends a message to be received by process 1
process 1 sends a message to be received by process 2 and so on to process 0.
we can send message to a process send/2 and receive process receive/1
send self(),{:hello,"world"}
{:hello,"world"}
receive do
{:hello,msg}-------->msg
{:world,msg} ------>"wont match"
end
"world"
receive do
-----> {:hello,msg}
------> after
......> 1_000 ------>" nothing after 1s"
end
"nothing after 1s"
The port number and network address 127.0.0.1 is as follows:
void setup() {
size(400)(400);
oscP5=new oscP5(this,5001);
myRemoteLocation=new NetAdress("127.0.0.1",5001);
}
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