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Re: [PATCH v2 05/12] util/oslib-win32: add qemu_get_host_physmem impleme


From: Daniel P . Berrangé
Subject: Re: [PATCH v2 05/12] util/oslib-win32: add qemu_get_host_physmem implementation
Date: Wed, 22 Jul 2020 12:41:16 +0100
User-agent: Mutt/1.14.5 (2020-06-23)

On Wed, Jul 22, 2020 at 12:31:06PM +0100, Alex Bennée wrote:
> 
> Stefan Weil <sw@weilnetz.de> writes:
> 
> > Am 22.07.20 um 12:32 schrieb 罗勇刚(Yonggang Luo):
> >
> >> I would suggest use loadLibrary to retrieve the function, if not
> >> available, then return 0 (For Win Xp and Vista);
> >
> >
> > Maybe using GlobalMemoryStatusEx is a better alternative. It is
> > available since XP.
> 
> I would welcome an alternative patch. I have no way to test if it works
> anyway.

Something like this should work:

   LPMEMORYSTATUSEX info = {
     .dwLength = sizeof(LPMEMORYSTATUSEX),
   };
   if (!GlobalMemoryStatusEx(&info)) {
      ...error report...
   }
   return info.ullTotalPhys;

(or ullAvailPhys for current free memory)


Regards,
Daniel
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