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POSIX equivalent of rtems_timer_fire_after
- Date: Tue, 09 Mar 2004 11:31:01 -0600
- From: joel.sherrill at OARcorp.com (Joel Sherrill)
- Subject: POSIX equivalent of rtems_timer_fire_after
Richard M. Barry wrote:
> I'm rewriting some code that uses a Classic API timer to trigger the excecution of a procedure after a certain amount of time has elapsed, by calling rtems_timer_fire_after(... , rtems_timer_service_routine ,...)
> I want to rewrite the code to only use the POSIX API, so I have to implement an equivalent mechanism. My question is, is the best way to do this:
> 1.Start a POSIX thread (containg the code previously in the rtems_timer_service_routine) that waits for a signal using sigsuspend(), and then
> 2.start a timer that fires the needed signal in my main thread?
> Just making sure I understand the use of sigsuspend() correctly.
Without building a timer server that executes an arbitrary user provided
function, I think that is the only mechanism POSIX provides.
This is one area I think POSIX was weak in.