[dpdk-dev] [PATCH v2] eal/interrupts: add function to allow interruptible epoll

David Marchand david.marchand at redhat.com
Mon Sep 14 10:56:33 CEST 2020


On Fri, Sep 4, 2020 at 1:28 AM Stephen Hemminger
<stephen at networkplumber.org> wrote:
>
> The existing definition of rte_epoll_wait retries if interrupted
> by a signal. This behavior makes it hard to use rte_epoll_wait
> for applications that want to use signals do do things like
> exit polling loop and shutdown.
>
> Since changing existing semantic might break applications, add
> a new rte_epoll_wait_interruptible() function that does the
> same thing as rte_epoll_wait but will return -1 and errno of EINTR
> if it receives a signal.
>
> Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
> Reviewed-by: Harman Kalra <hkalra at marvell.com>

You will certainly argue that the existing function had no unit test
but we want to fix this at some point.
Can a unit test be added?


Thanks.

-- 
David Marchand



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