1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24  
  25 #include "precompiled.hpp"
  26 #include "runtime/continuation.hpp"
  27 
  28 
  29 JVM_ENTRY(void, CONT_Foo(JNIEnv* env, jobject c)) {
  30     tty->print_cr("Hello, World!");
  31 }
  32 JVM_END
  33 
  34 #define CC (char*)  /*cast a literal from (const char*)*/
  35 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &f)
  36 
  37 static JNINativeMethod CONT_methods[] = {
  38     {"foo",           "()V",        FN_PTR(CONT_Foo)},
  39 };
  40 
  41 void CONT_RegisterNativeMethods(JNIEnv *env, jclass cls) {
  42     int status = env->RegisterNatives(cls, CONT_methods, sizeof(CONT_methods)/sizeof(JNINativeMethod));
  43     guarantee(status == JNI_OK && !env->ExceptionOccurred(), "register java.lang.Continuation natives");
  44 }
  45