Sigh, ok well I'm in the middle of a port and have been busy
documenting, oddly I spent an hour checking getAttributeIntoLength the
other day
so it seems that asking for index 2 should give the document name,
which is a hold over from the original macintosh os-7.x based VM
where you
would launch squeak with a document and it was the smalltalk script to
execute.
Oddly the macintosh carbon port has managed to dispose of this notion
of the document.
There are calls in the VM to set and get it, but no one sets it.
Well of course this is why I'm doing this work...
I 'll look into building a mac carbon 3.8.18b4 to fix the problem
You could try passing a negative number say -2 that might get the
data, but I'm not quite sure without testing if that is correct as
compared to
the unix vm.
sqInt getAttributeIntoLength(sqInt indexNumber, sqInt byteArrayIndex,
sqInt length)
Parms:
indexNumber, a negative or positive number, or zero
byteArrayIndex a pointer to squeak memory, use
pointerForOop(byteArrayIndex) to convert
lenght an agreed upon length for the storage area.
return: char*
or sucess(0) to fail primitive.
From: Interpreter via char * GetAttributeString(int id)
Why:
Returns char* to an empty string or magic value strings. which might
be arguments to the VM at startup.
Works in conjunction with attributeSize which calls it to get data and
use that for sizing.
Do NOT return NULL
ON unix systems for numbers < 0 it returns the argument passed to the
binary
On unix systems for numbers > 2 it returns the
number == 0 return vmName
number == 1 return imageName
number == 1001 /* OS type: "unix", "win32", "mac", ... */
number == 1002 /* OS name: "solaris2.5" on unix, "win95" on win32, ...
*/
number == 1003 /* processor architecture: "68k", "x86",
"PowerPC", ... */
number == 1004 /* Interpreter version string */
number == 1006 /* build string, say "Unix built on "__DATE__ "
"__TIME__" Compiler: "__VERSION__ */
Responsibility:
MacIntosh
indexNumber = 2, return document name, this is not allowed by unix port
BUGS This is not valid, not set, so returns empty string, also use of
negative # does not match unix implementation
indexNumber = 1001, return 'Mac OS'
indexNumber = 1002, return Gestalt(gestaltSystemVersion
indexNumber = 1003, return Gestalt(gestaltSysArchitecture
indexNumber = 1004, return CFBundleShortVersionString and
interpreterVersion
indexNUmber = 1005, ignore
indexNumber = 1006, return build string, which is say 'Mac Carbon
3.8.18b3 10-Apr-08 >DC0EAF5D-C46C-479D-B2A3-DBD4A2DF95A8<'
indexNumber = 1201, return 255 that is the number of characters in a
file name
indexNumber = 1202, return last file error number, was used by some
macintosh VM to return file error information, not valid anymore
Unix
indexNumber = 1005, return dpy->winSystemName
indexNumber = 1006, return VM_BUILD_STRING, "Unix built on "__DATE__ "
"__TIME__" Compiler: "__VERSION__"
Windows
NOTE: NOT CHECKING WINDOWS, windows developers can add their comments
once this goes onto a WIki somewhere.
BUGS
If attributeSize(1) followed by getAttribute(1) does not return the
same sized element the results will be bogus.
On May 29, 2008, at 6:34 AM, Howard Stearns wrote:
> Thanks, John and Keith.
>
> Alas, it fails the same way in the current version from
http://ftp.squeak.org/current_stable/mac/Squeak3.10.1-7175mac.zip
> (link on "Latest Release" of squeak.org), for which
> SmalltalkImage current getSystemAttribute: 1006
> => 'Mac Carbon 3.8.18b3 10-Apr-08 >DC0EAF5D-C46C-479D-B2A3-
> DBD4A2DF95A8<'
>
> Seems odd to me that no one is using Squeak for scripting or
> arbitrary applications on Mac.
> Or if people use, say, custom class #startUp methods instead, why do
> we have script processing at all on the other platforms?
>
> -Howard
--
=
=
=
========================================================================
John M. McIntosh <
[hidden email]>
Corporate Smalltalk Consulting Ltd.
http://www.smalltalkconsulting.com=
=
=
========================================================================
Locked
