On 1/14/21 4:32 PM, Paul Procacci wrote:
https://docs.microsoft.com/en-us/windows/win32/api/tlhelp32/nf-tlhelp32-createtoolhelp32snapshot
<https://docs.microsoft.com/en-us/windows/win32/api/tlhelp32/nf-tlhelp32-createtoolhelp32snapshot>
On Thu, Jan 14, 2021 at 7:30 PM ToddAndMargo via perl6-users
<perl6-us...@perl.org <mailto:perl6-us...@perl.org>> wrote:
On 1/14/21 3:42 PM, Paul Procacci wrote:
> Let me preface this by saying if I were using a lower level language
> (like C) I wouldn't have this problem; as I know how to shift and
mask
> accordingly.
>
> On raku however, how to do so *eloquantly* eludes me.
>
> I've defined a CStruct as follows:
>
> class test is repr('CStruct') {
>
> has int64 $.a1;
>
> has int64 $.a2;
>
> ...
>
> has int64 $.a65;
>
> }
>
> Under normal circumstances I would have defined the member as:
> `HAS int16 @.a[260] is CArray` however that seems to be broken. See:
>
> https://github.com/rakudo/rakudo/issues/3633
<https://github.com/rakudo/rakudo/issues/3633>
> <https://github.com/rakudo/rakudo/issues/3633
<https://github.com/rakudo/rakudo/issues/3633>>
>
> The function that gets called with these members $.a1 .. $.a65
should
> get filled with a wchar_t character array.
>
> Does raku employ a simple method of decoding the 4 wchar_t's that
get
> placed into a int64 structure? The characters I'd like to
extract are
> at bit positions [15:0], [31.16], [47:32], [63:48]
>
> I'm imagining something along the lines of:
>
> buf16.new( $.a1, ... $.a64);
>
> ... but that doesn't quite work like I would expect.
>
> Thanks,
> ~Paul
Hi Paul,
Would you post the system call you are trying to
interface with?
-T
Did you see?
https://docs.microsoft.com/en-us/windows/win32/toolhelp/taking-a-snapshot-and-viewing-processes
