[Bug 7768] New: server doesn't support processor affinity masks other than 1

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=7768

Summary: server doesn't support processor affinity masks other
                    than 1
           Product: Wine
           Version: CVS
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: wine-kernel
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

This is perhaps two bugs rather than one, but they're so closely related I'm
entering them as one.

The server (in process.c) always initializes the process affinity (in the
get_process_info handler) to 1.  On Linux, it's possible to get a process's
affinity using sched_getaffinity - the server should initialize a process's
affinity using this instead.

The server also prohibits setting a process's affinity to anything but 1 (in the
set_process_info handler), failing with STATUS_INVALID_PARAMETER.  This seems
somewhat arbitrary.  First, it could fake accepting the affinity, as long as the
affinity mask doesn't contain CPUs which aren't present (see bug 7766).  Second,
it could set the process's affinity on Linux, using sched_setaffinity.