private VMRoutine RoutineFromModule(BHAV bhav, SimAnticsModule module)
{
object func = module.GetFunction(bhav.ChunkID);
VMRoutine routine;
if (func != null)
{
if (func is IBHAV)
{
routine = new VMAOTRoutine((IBHAV)func);
}
else
{
routine = new VMAOTInlineRoutine((IInlineBHAV)func);
}
}
else
{
routine = new VMRoutine();
}
PopulateRoutineFields(bhav, routine);
return(routine);
}
public override VMRoutine Assemble(BHAV bhav, GameIffResource res)
{
VMRoutine routine;
// firstly, try to find the assembly
//var assembly = Assemblies.GetModuleFor(bhav.ChunkParent);
// three possibilities:
// - module is loading (null for now): create a JIT routine, which will be updated with the appropriate function when it is available
// - module is finished loading: create an AOT routine, which hsa the function baked in
// - forced interpreter (not impl yet)
//if this bhav has a cached jit module, just use that rather than doing a lookup.
var aot = (SimAnticsModule)bhav.ChunkParent.CachedJITModule;
if (aot != null)
{
return(RoutineFromModule(bhav, aot));
}
var assembly = Assemblies.GetModuleFor(res);
if (assembly != null)
{
if (assembly.Module != null)
{
return(RoutineFromModule(bhav, assembly.Module));
}
// need to load it or wait for loading.
var result = new VMRoslynRoutine();
PopulateRoutineFields(bhav, result);
assembly.GetModuleAsync().ContinueWith(moduleT =>
{
//TODO: thread safe for server
// the main concern is injecting a JIT routine while the interpreter is running that function.
// in that case, it could attempt to enter into the the JIT routine at an invalid entry point
// (JIT execution can only enter from the start, loop points or after yield)
GameThread.InUpdate(() =>
{
SimAnticsModule module = (moduleT.IsFaulted) ? null : moduleT.Result;
object func = module?.GetFunction(bhav.ChunkID);
if (func != null)
{
if (func is IBHAV)
{
result.SetJITRoutine((IBHAV)func);
}
else
{
result.SetJITRoutine((IInlineBHAV)func);
}
}
else
{
// failed... stay on interpreter
}
});
});
return(result);
}
routine = new VMRoutine();
PopulateRoutineFields(bhav, routine);
return(routine);
}