Concurrency and Modules

Client and Server Modules

A larger program often splits client code from server code. This page renders the files as separate source and replay blocks so each file can keep its own panel.

Server Module

task_client.py 
command = 
request = {"command": command, "user": "reader"}

print("send=" + request["command"])
print("user=" + request["user"])

command = 
request = {"command": command, "user": "reader"}

print("send=" + request["command"])
print("user=" + request["user"])

command = 
request = {"command": command, "user": "reader"}

print("send=" + request["command"])
print("user=" + request["user"])
task_server.py 
command = 


def handle(command):
    if command == "ping":
        return "pong"
    if command == "count":
        return "items=2"
    return "ready"


response = handle(command)
print("response=" + response)

command = 


def handle(command):
    if command == "ping":
        return "pong"
    if command == "count":
        return "items=2"
    return "ready"


response = handle(command)
print("response=" + response)

command = 


def handle(command):
    if command == "ping":
        return "pong"
    if command == "count":
        return "items=2"
    return "ready"


response = handle(command)
print("response=" + response)
module boundary One module can prepare a request while another module handles the command. Replay keeps each source file separate.