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定義場所(file name)

hotspot/src/share/vm/prims/jni.cpp

名前(function name)

JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

本体部(body)

  {- -------------------------------------------
  (1) (デバッグ用の処理)
      (See: JNIWrapper)
      ---------------------------------------- -}

      JNIWrapper("NewObject");

  {- -------------------------------------------
  (1) (DTrace のフック点)
      ---------------------------------------- -}

      DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  {- -------------------------------------------
  (1) (変数宣言など)
      ---------------------------------------- -}

      jobject obj = NULL;

  {- -------------------------------------------
  (1) (DTrace のフック点)(リターン用) (See: DT_RETURN_MARK)
      ---------------------------------------- -}

      DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  {- -------------------------------------------
  (1) alloc_object() をオブジェクトを確保し, それを JNI Handle 化しておく.
      ---------------------------------------- -}

      instanceOop i = alloc_object(clazz, CHECK_NULL);
      obj = JNIHandles::make_local(env, i);

  {- -------------------------------------------
  (1) 可変長引数を JNI_ArgumentPusherVaArg オブジェクトに詰め直した後, 
      jni_invoke_nonstatic() を呼んで指定されたコンストラクタを呼び出す.
      ---------------------------------------- -}

      va_list args;
      va_start(args, methodID);
      JavaValue jvalue(T_VOID);
      JNI_ArgumentPusherVaArg ap(methodID, args);
      jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
      va_end(args);

  {- -------------------------------------------
  (1) 結果をリターン
      ---------------------------------------- -}

      return obj;
    JNI_END

This document is available under the GNU GENERAL PUBLIC LICENSE Version 2.