src/share/vm/prims/jvmtiManageCapabilities.hpp

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   1 /*
   2  * Copyright (c) 2003, 2005, 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 #ifndef _JAVA_JVMTI_MANAGE_CAPABILITIES_H_
  26 #define _JAVA_JVMTI_MANAGE_CAPABILITIES_H_
  27 
  28 


  29 
  30 class JvmtiManageCapabilities : public AllStatic {
  31 
  32 private:
  33 
  34   // these four capabilities sets represent all potentially
  35   // available capabilities.  They are disjoint, covering
  36   // the four cases: (OnLoad vs OnLoad+live phase) X
  37   // (one environment vs any environment).
  38   static jvmtiCapabilities always_capabilities;
  39   static jvmtiCapabilities onload_capabilities;
  40   static jvmtiCapabilities always_solo_capabilities;
  41   static jvmtiCapabilities onload_solo_capabilities;
  42 
  43   // solo capabilities that have not been grabbed
  44   static jvmtiCapabilities always_solo_remaining_capabilities;
  45   static jvmtiCapabilities onload_solo_remaining_capabilities;
  46 
  47   // all capabilities ever acquired
  48   static jvmtiCapabilities acquired_capabilities;


  67   static void recompute_always_capabilities();
  68 
  69   // queries and actions
  70   static void get_potential_capabilities(const jvmtiCapabilities *current,
  71                                          const jvmtiCapabilities *prohibited,
  72                                          jvmtiCapabilities *result);
  73   static jvmtiError add_capabilities(const jvmtiCapabilities *current,
  74                                      const jvmtiCapabilities *prohibited,
  75                                      const jvmtiCapabilities *desired,
  76                                      jvmtiCapabilities *result);
  77   static void relinquish_capabilities(const jvmtiCapabilities *current,
  78                                       const jvmtiCapabilities *unwanted,
  79                                       jvmtiCapabilities *result);
  80   static void copy_capabilities(const jvmtiCapabilities *from, jvmtiCapabilities *to);
  81 
  82 #ifndef PRODUCT
  83   static void print(const jvmtiCapabilities* caps);
  84 #endif
  85 };
  86 
  87 #endif   /* _JAVA_JVMTI_MANAGE_CAPABILITIES_H_ */
   1 /*
   2  * Copyright (c) 2003, 2010, 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 #ifndef SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP
  26 #define SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP

  27 
  28 #include "jvmtifiles/jvmti.h"
  29 #include "memory/allocation.hpp"
  30 
  31 class JvmtiManageCapabilities : public AllStatic {
  32 
  33 private:
  34 
  35   // these four capabilities sets represent all potentially
  36   // available capabilities.  They are disjoint, covering
  37   // the four cases: (OnLoad vs OnLoad+live phase) X
  38   // (one environment vs any environment).
  39   static jvmtiCapabilities always_capabilities;
  40   static jvmtiCapabilities onload_capabilities;
  41   static jvmtiCapabilities always_solo_capabilities;
  42   static jvmtiCapabilities onload_solo_capabilities;
  43 
  44   // solo capabilities that have not been grabbed
  45   static jvmtiCapabilities always_solo_remaining_capabilities;
  46   static jvmtiCapabilities onload_solo_remaining_capabilities;
  47 
  48   // all capabilities ever acquired
  49   static jvmtiCapabilities acquired_capabilities;


  68   static void recompute_always_capabilities();
  69 
  70   // queries and actions
  71   static void get_potential_capabilities(const jvmtiCapabilities *current,
  72                                          const jvmtiCapabilities *prohibited,
  73                                          jvmtiCapabilities *result);
  74   static jvmtiError add_capabilities(const jvmtiCapabilities *current,
  75                                      const jvmtiCapabilities *prohibited,
  76                                      const jvmtiCapabilities *desired,
  77                                      jvmtiCapabilities *result);
  78   static void relinquish_capabilities(const jvmtiCapabilities *current,
  79                                       const jvmtiCapabilities *unwanted,
  80                                       jvmtiCapabilities *result);
  81   static void copy_capabilities(const jvmtiCapabilities *from, jvmtiCapabilities *to);
  82 
  83 #ifndef PRODUCT
  84   static void print(const jvmtiCapabilities* caps);
  85 #endif
  86 };
  87 
  88 #endif // SHARE_VM_PRIMS_JVMTIMANAGECAPABILITIES_HPP