func mainThreadNotReady(thread *rtda.Thread) bool {
stack := thread.CurrentFrame().OperandStack()
if _mainThreadGroup == nil {
undoExec(thread)
threadGroupClass := _classLoader.LoadClass("java/lang/ThreadGroup")
_mainThreadGroup = threadGroupClass.NewObj()
initMethod := threadGroupClass.GetConstructor("()V")
stack.PushRef(_mainThreadGroup) // this
thread.InvokeMethod(initMethod)
return true
}
if thread.JThread() == nil {
undoExec(thread)
threadClass := _classLoader.LoadClass("java/lang/Thread")
mainThreadObj := threadClass.NewObjWithExtra(thread)
mainThreadObj.SetFieldValue("priority", "I", int32(1))
thread.HackSetJThread(mainThreadObj)
initMethod := threadClass.GetConstructor("(Ljava/lang/ThreadGroup;Ljava/lang/String;)V")
stack.PushRef(mainThreadObj) // this
stack.PushRef(_mainThreadGroup) // group
stack.PushRef(rtda.JString("main")) // name
thread.InvokeMethod(initMethod)
return true
}
return false
}
func _loop(thread *rtda.Thread) {
defer _catchErr(thread) // todo
for {
frame := thread.CurrentFrame()
pc := frame.NextPC()
thread.SetPC(pc)
// fetch instruction
method := frame.Method()
if method.Instructions == nil {
method.Instructions = decodeMethod(method.Code())
}
insts := method.Instructions.([]instructions.Instruction)
inst := insts[pc]
instCount := len(insts)
// update nextPC
for {
pc++
if pc >= instCount || insts[pc] != nil {
break
}
}
frame.SetNextPC(pc)
// execute instruction
//_logInstruction(frame, inst)
inst.Execute(frame)
if thread.IsStackEmpty() {
break
}
}
}
// prepare to reexec this instruction
func undoExec(thread *rtda.Thread) {
thread.CurrentFrame().RevertNextPC()
}