Signalling between processes

• One process can send a signal to another process using the misleadingly named function call

  kill( int pid, int sig )
  

• This call sends the signal “sig” to the process “pid”

• Signalling between processes can be used for many purposes:

  • kill errant processes
  • temporarily suspend execution of a process
  • make processes aware of the passage of time
  • synchronize the actions of processes

Previous slide

Next slide

Back to first slide

View graphic version