public static void ShutdownJSEngine()
{
shutDown = true;
/*
* 在 Shutdown 时，先主动删除 CSRepresentedObject
* 现在已经没有必要再维护 id -> CSR.. 的关系了
* 移除后，CSR.. 有可能还被其他地方引用，所以在这个函数中调用C# GC，也不一定会调用到 CSR.. 的析构
* 后来在某个时刻析构被调用，在析构函数里有 removeJSCSRel ，那里会判断 round 是上一轮的所以忽略
*/
List <int> keysToRemove = new List <int>();
List <int> hashsToRemove = new List <int>();
foreach (var KV in mDictionary1)
{
JS_CS_Rel rel = KV.Value;
if (rel.csObj is WeakReference)
{
if ((rel.csObj as WeakReference).Target is CSRepresentedObject)
{
keysToRemove.Add(KV.Key);
hashsToRemove.Add(rel.hash);
}
}
}
foreach (var k in keysToRemove)
{
mDictionary1.Remove(k);
}
foreach (var h in hashsToRemove)
{
mDictionary2.Remove(h);
}
//
// 并GC
//
System.GC.Collect();
int Count = mDictionary1.Count;
// There is a JS_GC called inside JSApi.ShutdownJSEngine
#if UNITY_EDITOR
// DO NOT really cleanup everything, because we wanna start again
JSApi.ShutdownJSEngine(0);
#else
JSApi.ShutdownJSEngine(1);
#endif
StringBuilder sb = new StringBuilder();
sb.AppendLine("After JSApi.ShutdownJSEngine: ");
sb.Append("mDictionary1 count " + Count + " -> " + mDictionary1.Count + ", left elements(should only contain JSComponent):\n");
/*
* 到这里 mDictionary1 和 mDictionary2 应该只剩余 JSComponent 及其子类，原因是：
* 除了 JSComponent 外，其他东西都应该在 JSApi.ShutdownJSEngine(0) 后被移除（他里面调用了 JS_GC)
* 而 JSComponent 是没有垃圾回收回调的，他是在 OnDestroy 时从这2个字典里移除的
* 这时候可能他的 OnDestroy 还没有执行，所以这2个字典里还会有他们
*/
List <int> Keys = new List <int>(mDictionary1.Keys);
foreach (var K in Keys)
{
if (!mDictionary1.ContainsKey(K))
{
continue;
}
JS_CS_Rel Rel = mDictionary1[K];
sb.AppendLine(K.ToString() + " " + Rel.name);
}
Debug.Log(sb);
allCallbackInfo.Clear();
JSMgr.MoveJSCSRel2Old();
mDictJSFun1.Clear();
mDictJSFun2.Clear();
evaluatedScript.Clear();
CSRepresentedObject.s_objCount = 0;
CSRepresentedObject.s_funCount = 0;
jsEngineRound++;
}
public static void ShutdownJSEngine()
{
shutDown = true;
//
// remove CSRepresentedObject first
// no need to maintain id -> CSRepresentedObject now
//
// after remove, CSRepresentedObject may still be referenced, and ~CSRepresentedObject may not be called
// some times later ~CSRepresentedObject is called -> removeJSCSRel -> round is ignored because it is last round
//
List <int> keysToRemove = new List <int>();
List <int> hashsToRemove = new List <int>();
foreach (var KV in mDictionary1)
{
JS_CS_Rel rel = KV.Value;
if (rel.csObj is WeakReference)
{
if ((rel.csObj as WeakReference).Target is CSRepresentedObject)
{
keysToRemove.Add(KV.Key);
hashsToRemove.Add(rel.hash);
}
}
}
foreach (var k in keysToRemove)
{
mDictionary1.Remove(k);
}
foreach (var h in hashsToRemove)
{
mDictionary2.Remove(h);
}
System.GC.Collect();
int Count = mDictionary1.Count;
// There is a JS_GC called inside JSApi.ShutdownJSEngine
#if UNITY_EDITOR
// DO NOT really cleanup everything, because we wanna start again
JSApi.ShutdownJSEngine(0);
#else
JSApi.ShutdownJSEngine(1);
#endif
StringBuilder sb = new StringBuilder();
sb.AppendLine("After JSApi.ShutdownJSEngine: ");
sb.Append("mDictionary1 count " + Count + " -> " + mDictionary1.Count + ", left elements(should only contain JSComponent):\n");
//
// here, mDictionary1 and mDictionary2 should only contain JSComponent and his subclasses, because:
// everything should be removed after JSApi.ShutdownJSEngine(0) (it calls calls JS_GC)
// JSComponent is nomally be removed during OnDestroy, but his OnDestroy may not be called yet here
//
List <int> Keys = new List <int>(mDictionary1.Keys);
foreach (var K in Keys)
{
if (!mDictionary1.ContainsKey(K))
{
continue;
}
JS_CS_Rel Rel = mDictionary1[K];
sb.AppendLine(K.ToString() + " " + Rel.name);
}
Debug.Log(sb);
allCallbackInfo.Clear();
JSMgr.MoveJSCSRel2Old();
mDictJSFun1.Clear();
mDictJSFun2.Clear();
evaluatedScript.Clear();
CSRepresentedObject.s_objCount = 0;
CSRepresentedObject.s_funCount = 0;
jsEngineRound++;
}