duke@435: /*
stefank@2314:  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
duke@435:  *
duke@435:  */
duke@435: 
stefank@2314: #ifndef SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP
stefank@2314: #define SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP
duke@435: 
stefank@2314: #include "jvmtifiles/jvmti.h"
stefank@2314: #include "memory/allocation.hpp"
duke@435: 
duke@435: class JvmtiManageCapabilities : public AllStatic {
duke@435: 
duke@435: private:
duke@435: 
duke@435:   // these four capabilities sets represent all potentially
duke@435:   // available capabilities.  They are disjoint, covering
duke@435:   // the four cases: (OnLoad vs OnLoad+live phase) X
duke@435:   // (one environment vs any environment).
duke@435:   static jvmtiCapabilities always_capabilities;
duke@435:   static jvmtiCapabilities onload_capabilities;
duke@435:   static jvmtiCapabilities always_solo_capabilities;
duke@435:   static jvmtiCapabilities onload_solo_capabilities;
duke@435: 
duke@435:   // solo capabilities that have not been grabbed
duke@435:   static jvmtiCapabilities always_solo_remaining_capabilities;
duke@435:   static jvmtiCapabilities onload_solo_remaining_capabilities;
duke@435: 
duke@435:   // all capabilities ever acquired
duke@435:   static jvmtiCapabilities acquired_capabilities;
duke@435: 
duke@435:   // basic intenal operations
duke@435:   static jvmtiCapabilities *either(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
duke@435:   static jvmtiCapabilities *both(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
duke@435:   static jvmtiCapabilities *exclude(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
duke@435:   static bool has_some(const jvmtiCapabilities *a);
duke@435:   static void update();
duke@435: 
duke@435:   // init functions
duke@435:   static jvmtiCapabilities init_always_capabilities();
duke@435:   static jvmtiCapabilities init_onload_capabilities();
duke@435:   static jvmtiCapabilities init_always_solo_capabilities();
duke@435:   static jvmtiCapabilities init_onload_solo_capabilities();
duke@435: 
duke@435: public:
duke@435:   static void initialize();
duke@435: 
duke@435:   // may have to adjust always capabilities when VM initialization has completed
duke@435:   static void recompute_always_capabilities();
duke@435: 
duke@435:   // queries and actions
duke@435:   static void get_potential_capabilities(const jvmtiCapabilities *current,
duke@435:                                          const jvmtiCapabilities *prohibited,
duke@435:                                          jvmtiCapabilities *result);
duke@435:   static jvmtiError add_capabilities(const jvmtiCapabilities *current,
duke@435:                                      const jvmtiCapabilities *prohibited,
duke@435:                                      const jvmtiCapabilities *desired,
duke@435:                                      jvmtiCapabilities *result);
duke@435:   static void relinquish_capabilities(const jvmtiCapabilities *current,
duke@435:                                       const jvmtiCapabilities *unwanted,
duke@435:                                       jvmtiCapabilities *result);
duke@435:   static void copy_capabilities(const jvmtiCapabilities *from, jvmtiCapabilities *to);
duke@435: 
duke@435: #ifndef PRODUCT
duke@435:   static void print(const jvmtiCapabilities* caps);
duke@435: #endif
duke@435: };
duke@435: 
stefank@2314: #endif // SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP