basic VM stuff

src/vm.c

@@ -0,0 +1,42 @@
+#include "vm.h"
+#include "helper.h"
+
+noomV_Object *noomV_allocObj(noom_LuaVM *vm, noomV_ObjTag tag, noom_uint_t size) {
+	noomV_Object *o = noom_alloc(size);
+	if(o == 0) return o;
+
+	o->tag = tag;
+	o->marked = 0;
+	o->next = vm->heap;
+	o->nextGray = 0;
+	vm->heap = o;
+	return o;
+}
+
+void noomV_freeObj(noomV_Object *obj) {
+	noom_free(obj);
+}
+
+noom_LuaVM *noom_createVM(noom_LuaVersion version) {
+	noom_LuaVM *vm = noom_alloc(sizeof(*vm));
+	if(vm == 0) return 0;
+	// initialize the universe to NULL, handles partial OOMs nicely
+	vm->heap = 0;
+	vm->graySet = 0;
+	vm->globals = 0;
+	vm->registry = 0;
+	vm->mainThread = 0;
+	vm->currentThread = 0;
+	vm->version = version;
+	return vm;
+}
+
+void noom_destroyVM(noom_LuaVM *vm) {
+	noomV_Object *iter = vm->heap;
+	while(iter) {
+		noomV_Object *cur = iter;
+		iter = iter->next;
+		noomV_freeObj(cur);
+	}
+	noom_free(vm);
+}