def main():
# Create python Events for when worker1 and worker2 are ready.
ready1 = threading.Event()
ready2 = threading.Event()
# These callbacks are called when messages are received from
# worker1 and worker2. Note that these functions are called
# in their own thread.
def check_ready1(tuple):
if tuple == 'ready':
print('Worker1 reports ready')
ready1.set()
def check_ready2(tuple):
if tuple == 'ready':
print('Worker2 reports ready')
ready2.set()
# Set up a transport called "boss"
t = Transport('boss')
# Listen for messages from workers
t.subscribe('worker1', check_ready1)
t.subscribe('worker2', check_ready2)
# Repeat forever
while True:
# Set both workers as not ready.
ready1.clear()
ready2.clear()
print('\nWaiting for workers to be ready')
# Wait for both workers to have indicated that they're ready.
# Note that the order doesn't matter. If 2 is ready first, it
# will remain ready until 1 is also ready.
ready1.wait()
ready2.wait()
print('Both workers ready. Telling them to GO!')
t.send('worker1', 'GO!')
t.send('worker2', 'GO!')
def main():
# Create python Events for when worker1 and worker2 are ready.
ready1 = threading.Event()
ready2 = threading.Event()
# These callbacks are called when messages are received from
# worker1 and worker2. Note that these functions are called
# in their own thread.
def check_ready1(tuple):
if tuple == 'ready':
print('Worker1 reports ready')
ready1.set()
def check_ready2(tuple):
if tuple == 'ready':
print('Worker2 reports ready')
ready2.set()
# Set up a transport called "boss"
t = Transport('boss')
# Listen for messages from workers
t.subscribe('worker1', check_ready1)
t.subscribe('worker2', check_ready2)
# Repeat forever
while True:
# Set both workers as not ready.
ready1.clear()
ready2.clear()
print('\nWaiting for workers to be ready')
# Wait for both workers to have indicated that they're ready.
# Note that the order doesn't matter. If 2 is ready first, it
# will remain ready until 1 is also ready.
ready1.wait()
ready2.wait()
print('Both workers ready. Telling them to GO!')
t.send('worker1', 'GO!')
t.send('worker2', 'GO!')
#!/usr/bin/env python
#
# Example of coordinating two workers. The worker simply waits for
# keyboard input, and sends the message to the boss. When the boss
# sends a message, the worker just echos it. See coord_boss.py
# for a more complete explanation.
from __future__ import print_function
from six.moves import input
import six
import sys
from lcas.Transport import Transport
myname = sys.argv[1]
t = Transport(myname)
t.subscribe('boss', lambda tuple: print('Got', tuple, 'from boss'))
while True:
t.send('boss', input())
