Re: Man page for revised timerfd API

From: Michael Kerrisk
Date: Thu Sep 27 2007 - 06:35:44 EST


A further question: what is the expected behavior in the
following scenario:

1. Create a timerfd and arm it.
2. Wait until M timer expirations have occurred
3. Modify the settings of the timer
4. Wait for N further timer expirations have occurred
5. read() from the timerfd

Does the buffer returned by the read() contain the value
N or (M+N)? In other words, should modifying the timer
settings reset the expiration count to zero?


Michael Kerrisk
maintainer of Linux man pages Sections 2, 3, 4, 5, and 7

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