Re: [dpdk-dev] [PATCH v2 2/2] eal/windows: implement alarm API

[Narcisa Ana Maria Vasile <navasile@linux.microsoft.com>]

On Sat, Sep 26, 2020 at 02:32:43AM +0300, Dmitry Kozlyuk wrote:
> Implementation is based on waitable timers Win32 API. When timer is set,
> a callback and its argument are supplied to the OS, while timer handle
> is stored in EAL alarm list. When timer expires, OS wakes up the
> interrupt thread and runs the callback. Upon completion it removes the
> alarm.
> 
> Waitable timers must be set from the thread their callback will run in,
> eal_intr_thread_schedule() provides a way to schedule asyncronuous code
> execution in the interrupt thread. Alarm module builds synchronous timer
> setup on top of it.
> 
> Windows alarms are not a type of DPDK interrupt handle and do not
> interact with interrupt module beyond executing in the same thread.
> 
> Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
> ---
>  lib/librte_eal/rte_eal_exports.def |   2 +
>  lib/librte_eal/windows/eal_alarm.c | 219 +++++++++++++++++++++++++++++
>  lib/librte_eal/windows/meson.build |   1 +
>  3 files changed, 222 insertions(+)
>  create mode 100644 lib/librte_eal/windows/eal_alarm.c
> 

Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>