1/*
2 * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 * This code is free software; you can redistribute it and/or modify it
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7 * published by the Free Software Foundation.
8 *
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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 *
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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24
25#ifndef SHARE_PRIMS_JVMTIMANAGECAPABILITIES_HPP
26#define SHARE_PRIMS_JVMTIMANAGECAPABILITIES_HPP
27
28#include "jvmtifiles/jvmti.h"
29#include "memory/allocation.hpp"
30
31class JvmtiManageCapabilities : public AllStatic {
32
33private:
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;
50
51 // basic intenal operations
52 static jvmtiCapabilities *either(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
53 static jvmtiCapabilities *both(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
54 static jvmtiCapabilities *exclude(const jvmtiCapabilities *a, const jvmtiCapabilities *b, jvmtiCapabilities *result);
55 static bool has_some(const jvmtiCapabilities *a);
56 static void update();
57
58 // init functions
59 static jvmtiCapabilities init_always_capabilities();
60 static jvmtiCapabilities init_onload_capabilities();
61 static jvmtiCapabilities init_always_solo_capabilities();
62 static jvmtiCapabilities init_onload_solo_capabilities();
63
64public:
65 static void initialize();
66
67 // queries and actions
68 static void get_potential_capabilities(const jvmtiCapabilities *current,
69 const jvmtiCapabilities *prohibited,
70 jvmtiCapabilities *result);
71 static jvmtiError add_capabilities(const jvmtiCapabilities *current,
72 const jvmtiCapabilities *prohibited,
73 const jvmtiCapabilities *desired,
74 jvmtiCapabilities *result);
75 static void relinquish_capabilities(const jvmtiCapabilities *current,
76 const jvmtiCapabilities *unwanted,
77 jvmtiCapabilities *result);
78 static void copy_capabilities(const jvmtiCapabilities *from, jvmtiCapabilities *to);
79
80#ifndef PRODUCT
81 static void print(const jvmtiCapabilities* caps);
82#endif
83};
84
85#endif // SHARE_PRIMS_JVMTIMANAGECAPABILITIES_HPP
86