Tail
Kjeld Borch Egevang
kbe at dde.uucp
Wed May 17 23:47:35 AEST 1989
rich at eddie.MIT.EDU (Richard Caloggero) writes:
> How is "tail -1f" implemented? Is there an IOCTL or FCNTRL
>parameter which allows one to wait for some sort of status event (like
>size change), or does tail just keep checking and sleeping?
I've been told that in our SysV-implementation (3.1) there is a loop
with a read (from the file), a write (to the terminal) and a sleep(1).
| UUCP: kbe at dde.dk (Kjeld Borch Egevang) | Dansk Data Elektronik
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