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.

In reply to Re^3: Timer Question by saintmike
in thread Timer Question by rudeb0y

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