On 12/3/12 11:42 AM, Frank Shearar wrote:
>>   In true reentrancy each recursive call would essentially get their own VM.
>> >
>> >They could, but what's in the VM that they really need a separate copy of?
> It's not the VM, it's the shared state of the image that would cause a
> problem (if anything did). I would think, at least.
If that were the case, then he would need not only his own VM, but his 
own image. If these calls from C are expecting a virgin image with the 
ability to execute arbitrary smalltalk code and never see anybody else's 
data, then a separate image (or at leat super sandbox) would seem a 
requirement. OTOH, if he wanted to make use of some BitBlt functions, 
e.g., then he could ship a bitmap to Squeak, request some transformation 
and receive a new bitmap in return. In this case, one Vm and one image 
would seem to do nicely.

Cheers,
Bob