[PATCH] quartz: Reset the advise thread's timeout on each iteration.

[Zebediah Figura]

Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>

On 1/2/20 7:07 AM, Gabriel Ivăncescu wrote:
> Fixes a regression introduced by
> 63a6b308e91232dd55dd107595a6181c70180dd4. Because the timeout value was
> always shrinked, it quickly went to 0 and then the entire advise thread
> used 100% of a CPU core in applications such as Media Player Classic by
> basically becoming a busy loop.
> 
> Signed-off-by: Gabriel Ivăncescu <gabrielopcode at gmail.com>
> ---
> 
> As I seem to understand, this code is supposed to get the minimum timeout of
> all the sinks in the list, but only for that specific iteration, not globally.
> 
>   dlls/quartz/systemclock.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/dlls/quartz/systemclock.c b/dlls/quartz/systemclock.c
> index 77e569d..8122cc5 100644
> --- a/dlls/quartz/systemclock.c
> +++ b/dlls/quartz/systemclock.c
> @@ -126,13 +126,14 @@ static DWORD WINAPI SystemClockAdviseThread(void *param)
>       struct system_clock *clock = param;
>       struct advise_sink *sink, *cursor;
>       REFERENCE_TIME current_time;
> -    DWORD timeout = INFINITE;
>       HANDLE handles[2] = {clock->stop_event, clock->notify_event};
>   
>       TRACE("Starting advise thread for clock %p.\n", clock);
>   
>       for (;;)
>       {
> +        DWORD timeout = INFINITE;
> +
>           EnterCriticalSection(&clock->cs);
>   
>           current_time = GetTickCount64() * 10000;
>