Tcl has a C api … good
1) for *namespace* -> man Tcl_CreateNamespace ...
2) for *set at variable* -> man Tcl_ObjSetVar2 ...
but tcl has *no* C-Api to access a namespace variable :-)
to access a namespace variable in "C" you have to construct the variable-name-string fist .. like:
Tcl_Obj* myO = Tcl_ObjPrintf("%s::%s", ns_cstr, var_cstr)
(by the way the "Tcl_ObjPrintf" missing format specifier for "Tcl_Obj*")
and than use the *string* to access the variable;
Tcl_ObjSetVar2(interp,myO,?array-key or NULL?,newVal,flags)
The funny thing is that the "TclObjLookupVar" always disassemble the "myO" string
to figure out the namespace/array-key etc…
To make it short, Tcl need a *better* Tcl_Set/GetVar??? api perhaps "3" with namespace,variable,arrayItem separated to speedup access.
Tcl_ObjSetVar3(interp,myNs,myVar,myKey,newObj,flags)
and SKIP the parsing of "myVar" for either myNs or myKey.
The problem is NOT the 1-time access of a variable because the variable is AFTER
access cached, the problem is the *multiple* access with either *namespace* or *varname* is very dynamic.
→ just a "hint"
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