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      1 /* Copyright (C) 2017 The Android Open Source Project
      2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
      3  *
      4  * This file implements interfaces from the file jvmti.h. This implementation
      5  * is licensed under the same terms as the file jvmti.h.  The
      6  * copyright and license information for the file jvmti.h follows.
      7  *
      8  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
      9  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     10  *
     11  * This code is free software; you can redistribute it and/or modify it
     12  * under the terms of the GNU General Public License version 2 only, as
     13  * published by the Free Software Foundation.  Oracle designates this
     14  * particular file as subject to the "Classpath" exception as provided
     15  * by Oracle in the LICENSE file that accompanied this code.
     16  *
     17  * This code is distributed in the hope that it will be useful, but WITHOUT
     18  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     19  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     20  * version 2 for more details (a copy is included in the LICENSE file that
     21  * accompanied this code).
     22  *
     23  * You should have received a copy of the GNU General Public License version
     24  * 2 along with this work; if not, write to the Free Software Foundation,
     25  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
     26  *
     27  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
     28  * or visit www.oracle.com if you need additional information or have any
     29  * questions.
     30  */
     31 
     32 #ifndef ART_RUNTIME_OPENJDKJVMTI_TI_THREAD_H_
     33 #define ART_RUNTIME_OPENJDKJVMTI_TI_THREAD_H_
     34 
     35 #include "jni.h"
     36 #include "jvmti.h"
     37 
     38 namespace art {
     39 class ArtField;
     40 }
     41 
     42 namespace openjdkjvmti {
     43 
     44 class EventHandler;
     45 
     46 class ThreadUtil {
     47  public:
     48   static void Register(EventHandler* event_handler);
     49   static void Unregister();
     50 
     51   // To be called when it is safe to cache data.
     52   static void CacheData();
     53 
     54   static jvmtiError GetAllThreads(jvmtiEnv* env, jint* threads_count_ptr, jthread** threads_ptr);
     55 
     56   static jvmtiError GetCurrentThread(jvmtiEnv* env, jthread* thread_ptr);
     57 
     58   static jvmtiError GetThreadInfo(jvmtiEnv* env, jthread thread, jvmtiThreadInfo* info_ptr);
     59 
     60   static jvmtiError GetThreadState(jvmtiEnv* env, jthread thread, jint* thread_state_ptr);
     61 
     62   static jvmtiError SetThreadLocalStorage(jvmtiEnv* env, jthread thread, const void* data);
     63   static jvmtiError GetThreadLocalStorage(jvmtiEnv* env, jthread thread, void** data_ptr);
     64 
     65   static jvmtiError RunAgentThread(jvmtiEnv* env,
     66                                    jthread thread,
     67                                    jvmtiStartFunction proc,
     68                                    const void* arg,
     69                                    jint priority);
     70 
     71  private:
     72   static art::ArtField* context_class_loader_;
     73 };
     74 
     75 }  // namespace openjdkjvmti
     76 
     77 #endif  // ART_RUNTIME_OPENJDKJVMTI_TI_THREAD_H_
     78