Do modules have a separate namespace ?

peterz

I have tried to use a module twice just keeping the same code.
I want·to have the same initialization and configuration routines in both modules.
Each module launches an ASM routine with a call to cognew that is different for each module.
All functions and names are the same on both modules.

It compiles ok but it does not work. If I remove one of the modules the other works okay.
So, I am guesing there is some relation between both modules.

Are the names (functions, vars, labels, etc) separate spaces for each module ?

Mike Green

There are separate namespaces for each module. There is a comparison of the binary code for each module such that, if the binary is a match, only one copy is loaded (at least that's how I understand it). Since there's a different call to cognew, the binaries will be different.

Paul Baker

If you are loading two instances of the same object, each object will create it's own copy of the VAR space, however any variables declared in DAT are shared. Any variables which are not part of an assembly code space (ie they are not loaded into a cog before values are manipulated) will be shared among all instances, this can have unintended consequences if your code doesn't expect this behaviour.

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Paul Baker
Propeller Applications Engineer

Parallax, Inc.