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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_BREAKPOINT_H_
     33 #define ART_RUNTIME_OPENJDKJVMTI_TI_BREAKPOINT_H_
     34 
     35 #include "jni.h"
     36 #include "jvmti.h"
     37 
     38 #include "base/mutex.h"
     39 
     40 namespace art {
     41 class ArtMethod;
     42 namespace mirror {
     43 class Class;
     44 }  // namespace mirror
     45 }  // namespace art
     46 
     47 namespace openjdkjvmti {
     48 
     49 struct ArtJvmTiEnv;
     50 
     51 class Breakpoint {
     52  public:
     53   Breakpoint(art::ArtMethod* m, jlocation loc);
     54 
     55   // Get the hash code of this breakpoint.
     56   size_t hash() const;
     57 
     58   bool operator==(const Breakpoint& other) const {
     59     return method_ == other.method_ && location_ == other.location_;
     60   }
     61 
     62   art::ArtMethod* GetMethod() const {
     63     return method_;
     64   }
     65 
     66   jlocation GetLocation() const {
     67     return location_;
     68   }
     69 
     70  private:
     71   art::ArtMethod* method_;
     72   jlocation location_;
     73 };
     74 
     75 class BreakpointUtil {
     76  public:
     77   static jvmtiError SetBreakpoint(jvmtiEnv* env, jmethodID method, jlocation location);
     78   static jvmtiError ClearBreakpoint(jvmtiEnv* env, jmethodID method, jlocation location);
     79   // Used by class redefinition to remove breakpoints on redefined classes.
     80   static void RemoveBreakpointsInClass(ArtJvmTiEnv* env, art::mirror::Class* klass)
     81       REQUIRES(art::Locks::mutator_lock_);
     82 };
     83 
     84 }  // namespace openjdkjvmti
     85 
     86 namespace std {
     87 template<> struct hash<openjdkjvmti::Breakpoint> {
     88   size_t operator()(const openjdkjvmti::Breakpoint& b) const {
     89     return b.hash();
     90   }
     91 };
     92 
     93 }  // namespace std
     94 #endif  // ART_RUNTIME_OPENJDKJVMTI_TI_BREAKPOINT_H_
     95