IPCs using Redis

gistfile1.txt

Publisher:

# Persist message in a queue
lpush channel1.queue message
# Publish message to any connected subscriber
publish channel1 message
Subscriber:

# Subscribe to channel1
subscribe channel1
# Process any persisted messages
brpop channel1.queue



### Edit: Another solution, where publisher only stores messages if there was no subscriber:


Publisher:

subscribers = publish channel1 message
if subscribers == 0
  lpush channel1.queue message
Subscriber:

# handle stored messages
while(message = rpop channel1.queue)
  # process message

# subscribe for new messages
subscribe channel1