src/openvic-simulation/vm/VirtualMachine.hpp


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#pragma once

#include <vector>

#include "InstanceManager.hpp"
#include "RuntimeProcess.hpp"
#include "Utility.hpp"
#include "vm/Builtin.hpp"
#include <lauf/vm.h>

namespace OpenVic::Vm {
   struct VirtualMachine : utility::MoveOnlyHandleBase<VirtualMachine, lauf_vm> {
      using MoveOnlyHandleBase::MoveOnlyHandleBase;
      using MoveOnlyHandleBase::operator=;

      VirtualMachine(lauf_vm_options options) : MoveOnlyHandleBase(lauf_create_vm(options)) {}

      ~VirtualMachine() {
         if (_handle == nullptr) {
            return;
         }
         lauf_destroy_vm(*this);
         _handle = nullptr;
      }

      RuntimeProcess start_process(const lauf_asm_program* program) {
         return RuntimeProcess(lauf_vm_start_process(*this, program));
      }
   };

   struct OpenVicVirtualMachine : VirtualMachine {
      using VirtualMachine::VirtualMachine;
      using VirtualMachine::operator=;

      OpenVicVirtualMachine(
         InstanceManager* instance_manager, std::vector<Asm::scope_variant>&& scope_references,
         lauf_vm_options options = lauf_default_vm_options
      )
         : VirtualMachine([&] {
              options.user_data = &user_data;
              return options;
           }()) {
         user_data.scope_references = std::move(scope_references);
         user_data.instance_manager = instance_manager;
      }

   private:
      VmUserData user_data;
   };
}