/* Function: tp_deinit
* Destroys a VM instance.
*
* When you no longer need an instance of tinypy, you can use this to free all
* memory used by it. Even when you are using only a single tinypy instance, it
* may be good practice to call this function on shutdown.
*/
void tp_deinit(TP) {
while (tp->root.list.val->len) {
_tp_list_pop(tp,tp->root.list.val,0,"tp_deinit");
}
tp_full(tp); tp_full(tp);
tp_delete(tp,tp->root);
tp_gc_deinit(tp);
tp->mem_used -= sizeof(tp_vm);
free(tp);
}
tp_vm *_tp_init(void) {
int i;
tp_vm *tp = (tp_vm*)calloc(sizeof(tp_vm),1);
tp->time_limit = TP_NO_LIMIT;
tp->clocks = clock();
tp->time_elapsed = 0.0;
tp->mem_limit = TP_NO_LIMIT;
tp->mem_exceeded = 0;
tp->mem_used = sizeof(tp_vm);
tp->cur = 0;
tp->jmp = 0;
tp->ex = tp_None;
tp->root = tp_list_nt(tp);
for (i=0; i<256; i++) { tp->chars[i][0]=i; }
tp_gc_init(tp);
tp->_regs = tp_list(tp);
for (i=0; i<TP_REGS; i++) { tp_set(tp,tp->_regs,tp_None,tp_None); }
tp->builtins = tp_dict(tp);
tp->modules = tp_dict(tp);
tp->_params = tp_list(tp);
for (i=0; i<TP_FRAMES; i++) { tp_set(tp,tp->_params,tp_None,tp_list(tp)); }
tp_set(tp,tp->root,tp_None,tp->builtins);
tp_set(tp,tp->root,tp_None,tp->modules);
tp_set(tp,tp->root,tp_None,tp->_regs);
tp_set(tp,tp->root,tp_None,tp->_params);
tp_set(tp,tp->builtins,tp_string("MODULES"),tp->modules);
tp_set(tp,tp->modules,tp_string("BUILTINS"),tp->builtins);
tp_set(tp,tp->builtins,tp_string("BUILTINS"),tp->builtins);
tp_obj sys = tp_dict(tp);
tp_set(tp, sys, tp_string("version"), tp_string("tinypy 1.2+SVN"));
tp_set(tp,tp->modules, tp_string("sys"), sys);
tp->regs = tp->_regs.list.val->items;
tp_full(tp);
return tp;
}
void tp_gcinc(TP) {
tp->steps += 1;
if (tp->steps < TP_GCMAX || tp->grey->len > 0) {
_tp_gcinc(tp); _tp_gcinc(tp);
}
if (tp->steps < TP_GCMAX || tp->grey->len > 0) { return; }
tp->steps = 0;
tp_full(tp);
return;
}
