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comparison src/share/vm/prims/jvmtiManageCapabilities.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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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 */
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;
49
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();
56
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();
62
63 public:
64 static void initialize();
65
66 // may have to adjust always capabilities when VM initialization has completed
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_ */