Alarm inside php

Question

hi when implementing a connection that remains open for a long time (comet), how can I implement signaling between php profiles (outstanding requests)?

Example Timeline:

• request 1 start
• request 1 does an action
• request 1 dream
• request 2 starts
• request 2 does the action
• request 2 notifies request 1 and goes to bed
• request 1 wakes up and sends new data
• request 1 sleeps agen

I wandered if it was a method using less (noting?) That cpu prosessing

Answer 1

If your platform is Linux / Unix, you can use queues .

• request 1 start
• request 1 does an action
• 1 (sleep (1) )
• 2
• 2
• 2
• 1 ,
• 1

sleep(), .

Answer 2

, pcntl_signal(), pcntl_fork(). forking, .

cpu, usleep() , .

Answer 3

"" .

script 1 - ""
script 1 , , , ,
else sleep/repeat

script 2 checks for incomplete jobs in the database;
if so, then act and write returncode
else sleep / repeat