aoqi@0: /*
aoqi@0:  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP
aoqi@0: #define SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP
aoqi@0: 
aoqi@0: #include "jvmtifiles/jvmti.h"
aoqi@0: #include "memory/allocation.hpp"
aoqi@0: 
aoqi@0: class JvmtiManageCapabilities : public AllStatic {
aoqi@0: 
aoqi@0: private:
aoqi@0: 
aoqi@0:   // these four capabilities sets represent all potentially
aoqi@0:   // available capabilities.  They are disjoint, covering
aoqi@0:   // the four cases: (OnLoad vs OnLoad+live phase) X
aoqi@0:   // (one environment vs any environment).
aoqi@0:   static jvmtiCapabilities always_capabilities;
aoqi@0:   static jvmtiCapabilities onload_capabilities;
aoqi@0:   static jvmtiCapabilities always_solo_capabilities;
aoqi@0:   static jvmtiCapabilities onload_solo_capabilities;
aoqi@0: 
aoqi@0:   // solo capabilities that have not been grabbed
aoqi@0:   static jvmtiCapabilities always_solo_remaining_capabilities;
aoqi@0:   static jvmtiCapabilities onload_solo_remaining_capabilities;
aoqi@0: 
aoqi@0:   // all capabilities ever acquired
aoqi@0:   static jvmtiCapabilities acquired_capabilities;
aoqi@0: 
aoqi@0:   // basic intenal operations
aoqi@0:   static jvmtiCapabilities *either(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
aoqi@0:   static jvmtiCapabilities *both(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
aoqi@0:   static jvmtiCapabilities *exclude(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
aoqi@0:   static bool has_some(const jvmtiCapabilities *a);
aoqi@0:   static void update();
aoqi@0: 
aoqi@0:   // init functions
aoqi@0:   static jvmtiCapabilities init_always_capabilities();
aoqi@0:   static jvmtiCapabilities init_onload_capabilities();
aoqi@0:   static jvmtiCapabilities init_always_solo_capabilities();
aoqi@0:   static jvmtiCapabilities init_onload_solo_capabilities();
aoqi@0: 
aoqi@0: public:
aoqi@0:   static void initialize();
aoqi@0: 
aoqi@0:   // may have to adjust always capabilities when VM initialization has completed
aoqi@0:   static void recompute_always_capabilities();
aoqi@0: 
aoqi@0:   // queries and actions
aoqi@0:   static void get_potential_capabilities(const jvmtiCapabilities *current,
aoqi@0:                                          const jvmtiCapabilities *prohibited,
aoqi@0:                                          jvmtiCapabilities *result);
aoqi@0:   static jvmtiError add_capabilities(const jvmtiCapabilities *current,
aoqi@0:                                      const jvmtiCapabilities *prohibited,
aoqi@0:                                      const jvmtiCapabilities *desired,
aoqi@0:                                      jvmtiCapabilities *result);
aoqi@0:   static void relinquish_capabilities(const jvmtiCapabilities *current,
aoqi@0:                                       const jvmtiCapabilities *unwanted,
aoqi@0:                                       jvmtiCapabilities *result);
aoqi@0:   static void copy_capabilities(const jvmtiCapabilities *from, jvmtiCapabilities *to);
aoqi@0: 
aoqi@0: #ifndef PRODUCT
aoqi@0:   static void print(const jvmtiCapabilities* caps);
aoqi@0: #endif
aoqi@0: };
aoqi@0: 
aoqi@0: #endif // SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP