On Oct 31, 2010, at 12:19 PM, Shaping wrote:
> I'll have a look. So then these two VMs running in separate threads in the
> same OS process must still take care to lock memory/objects of common
> interest, or to stay out of each other's assigned memory areas. Is the
> second strategy the current convention?
Each VM has an independent heap, and passing object handles between VMs is
impossible because any VM's garbage collector can run independently of the
others. There's thus no direct interaction between the VMs available using live
Factor objects. Communication between the VMs would have to happen through
standard IPC channels, or using a shared buffer allocated via malloc or
mmap/VirtualAlloc. Factor objects or raw data can then be serialized and
deserialized through one of these channels. You'll have to use traditional
synchronization to guard any shared resources you set up, but the Factor VMs by
themselves will be completely independent.
At a much lower level, some people have had success using Factor's assembler
with the platform's native threading APIs to assemble a C-compatible function
and spawn a thread running it.
> No, I just run cmd.exe from Start menu, and navigate to my Factor repo
> directory before doing the above command.
This is probably your problem. Use the "Visual Studio Command Prompt" or
"Windows SDK Command Prompt" shortcuts to open the command prompt used to build
Factor. I believe these shortcuts do more environment setup than vsvars32.bat
alone does.
-Joe
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