I may have. Regardless, I have written a proof of concept in 'C' which works. My question isn't how to interface with the Windows Operating System because I have already done so in 'C' quite easily.
My question pertains to working around the bug as described here: https://github.com/rakudo/rakudo/issues/3633 Do you have any comments concerning this bug and/or the approach I'm taking? Passing a flattened array of 260 int16's doesn't work so my approach is passing 65 non-flattened int64's. The 65 int64's are in fact being utilized by the callee, yet I'm looking for a method to reconstruct this back into 260 wchar_t's (which has a width of 16) w/ a simple method that doesn't include me walking the int64 and masking the chars out myself. Does this exist. Thanks, ~Paul On Thu, Jan 14, 2021 at 9:58 PM ToddAndMargo via perl6-users < perl6-us...@perl.org> wrote: > 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 > > -- __________________ :(){ :|:& };:
