Re: asyn driver on Windows XP

[Dirk Zimoch <dirk.zimoch@psi.ch>]

Compiling asyn with make USR_CFLAGS=/D_WIN32_WINNT=0x0500 solves the 
problem. I have no idea why _WIN32_WINNT is set to something >= 0x0600 
(=Vista).

Dirk

Eric Norum wrote:
> The conditionals in drvAsynIPPort.c were supposed to handle this case:
>
> #if defined(__rtems__)
> # define USE_SOCKTIMEOUT
> #else
> # define USE_POLL
> # if defined(vxWorks)
> #  define FAKE_POLL
> # elif defined(_WIN32)
> #  if defined(POLLIN)
> #   define poll(fd,nfd,t) WSAPoll(fd,nfd,t)
> #  else
> #   define FAKE_POLL
> #  endif
> # else
> #  include <sys/poll.h>
> # endif
> #endif
>
> The intent was to use WSAPoll() only on versions of windows which provided it (and defined POLLIN).   Could it be that XP defines POLLIN but doesn't provide WSAPoll()?
> What happens if you compile this with -UPOLLIN added to the CFLAGS?  If that doesn't help, try adding a '#undef POLLIN' just before the block of conditionals.    If t either of those fix the problem we'll have to figure out some other set of conditionals for Windows.
>
>
> On Nov 15, 2010, at 8:57 AM, Dirk Zimoch wrote:
>
> > Hi all,
> >
> > I have a problem with the latest version of asyn driver on Windows XP. It tries to use a function WSAPoll() that does not exist in XP, only in Vista and newer. However I do not want use an old version of asyn driver without that function because of all the new features and bugfixes.
> >
> > The code in question is:
> >
> > #if defined(__rtems__)
> > # define USE_SOCKTIMEOUT
> > #else
> > # define USE_POLL
> > # if defined(vxWorks)
> > #  define FAKE_POLL
> > # elif defined(_WIN32)
> > #  if defined(POLLIN)
> > #   define poll(fd,nfd,t) WSAPoll(fd,nfd,t)
> > #  else
> > #   define FAKE_POLL
> > #  endif
> > # else
> > #  include <sys/poll.h>
> > # endif
> > #endif
> >
> > It seems I have POLLIN defined but no WSAPoll.
> >
> > I am using the compiler from Visual Studio 10.
> >
> > Any idea?
> >
> > Dirk