src/share/vm/prims/jvmtiManageCapabilities.hpp

Wed, 08 Oct 2008 08:10:51 -0700

author
ksrini
date
Wed, 08 Oct 2008 08:10:51 -0700
changeset 823
f008d3631bd1
parent 435
a61af66fc99e
child 1907
c18cbe5936b8
permissions
-rw-r--r--

6755845: JVM_FindClassFromBoot triggers assertions
Summary: Fixes assertions caused by one jvm_entry calling another, solved by refactoring code and modified gamma test.
Reviewed-by: dholmes, xlu

     1 /*
     2  * Copyright 2003-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  *
    23  */
    25 #ifndef _JAVA_JVMTI_MANAGE_CAPABILITIES_H_
    26 #define _JAVA_JVMTI_MANAGE_CAPABILITIES_H_
    30 class JvmtiManageCapabilities : public AllStatic {
    32 private:
    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;
    43   // solo capabilities that have not been grabbed
    44   static jvmtiCapabilities always_solo_remaining_capabilities;
    45   static jvmtiCapabilities onload_solo_remaining_capabilities;
    47   // all capabilities ever acquired
    48   static jvmtiCapabilities acquired_capabilities;
    50   // basic intenal operations
    51   static jvmtiCapabilities *either(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
    52   static jvmtiCapabilities *both(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
    53   static jvmtiCapabilities *exclude(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
    54   static bool has_some(const jvmtiCapabilities *a);
    55   static void update();
    57   // init functions
    58   static jvmtiCapabilities init_always_capabilities();
    59   static jvmtiCapabilities init_onload_capabilities();
    60   static jvmtiCapabilities init_always_solo_capabilities();
    61   static jvmtiCapabilities init_onload_solo_capabilities();
    63 public:
    64   static void initialize();
    66   // may have to adjust always capabilities when VM initialization has completed
    67   static void recompute_always_capabilities();
    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);
    82 #ifndef PRODUCT
    83   static void print(const jvmtiCapabilities* caps);
    84 #endif
    85 };
    87 #endif   /* _JAVA_JVMTI_MANAGE_CAPABILITIES_H_ */

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