Re: Timer Question

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Re^2: Timer Question by ikegami (Patriarch) on Feb 16, 2006 at 18:59 UTC
That's didn't work prefectly. `$ perl -e 'alarm(5); system("sleep 10; echo awoke")' Alarm clock $ awoke` [download] system was interupted, but the command kept executing.	[reply] [d/l]
Re^3: Timer Question by saintmike (Vicar) on Feb 17, 2006 at 00:59 UTC
Depends on what is meant by "system call". If it's system call, it's a call to the OS, like `sysread`, in which case `alarm` works exactly as required. If it's "`system()` call", then things are different: `system()` forks a process, executes whatever's specified (different for single/multiple arguments), waits until the command is completed and then returns. It won't kill the spawned process, that's why it will run until the end.	[reply] [d/l] [select]
Re^4: Timer Question by ikegami (Patriarch) on Feb 17, 2006 at 02:58 UTC
oh, yes, it does look like I misread the OP.	[reply]
Re^4: Timer Question by rudeb0y (Novice) on Feb 17, 2006 at 18:26 UTC
it is a "system() call", how can I kill this after a certain amount of time...will alarm work per the other responses... Your help is greatly appreciated.	[reply]
Re^5: Timer Question by salva (Canon) on Feb 17, 2006 at 18:42 UTC