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comparison src/share/vm/runtime/java.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children 6b648fefb395
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1997-2006 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 // Register function to be called by before_exit
26 extern "C" { void register_on_exit_function(void (*func)(void)) ;}
27
28 // Execute code before all handles are released and thread is killed; prologue to vm_exit
29 extern void before_exit(JavaThread * thread);
30
31 // Forced VM exit (i.e, internal error or JVM_Exit)
32 extern void vm_exit(int code);
33
34 // Wrapper for ::exit()
35 extern void vm_direct_exit(int code);
36
37 // Shutdown the VM but do not exit the process
38 extern void vm_shutdown();
39 // Shutdown the VM and abort the process
40 extern void vm_abort();
41
42 // Trigger any necessary notification of the VM being shutdown
43 extern void notify_vm_shutdown();
44
45 // VM exit if error occurs during initialization of VM
46 extern void vm_exit_during_initialization(Handle exception);
47 extern void vm_exit_during_initialization(symbolHandle exception_name, const char* message);
48 extern void vm_exit_during_initialization(const char* error, const char* message = NULL);
49 extern void vm_shutdown_during_initialization(const char* error, const char* message = NULL);
50
51 class JDK_Version : AllStatic {
52 friend class VMStructs;
53 private:
54 static jdk_version_info _version_info;
55 static bool _pre_jdk16_version;
56 static int _jdk_version; // JDK version number representing the release
57 // i.e. n in 1.n.x (= jdk_minor_version())
58
59 public:
60 static void initialize();
61 static int jdk_major_version() { return JDK_VERSION_MAJOR(_version_info.jdk_version); }
62 static int jdk_minor_version() { return JDK_VERSION_MINOR(_version_info.jdk_version); }
63 static int jdk_micro_version() { return JDK_VERSION_MICRO(_version_info.jdk_version); }
64 static int jdk_build_number() { return JDK_VERSION_BUILD(_version_info.jdk_version); }
65
66 static bool is_pre_jdk16_version() { return _pre_jdk16_version; }
67 static bool is_jdk12x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 2; }
68 static bool is_jdk13x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 3; }
69 static bool is_jdk14x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 4; }
70 static bool is_jdk15x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 5; }
71 static bool is_jdk16x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 6; }
72 static bool is_jdk17x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 7; }
73
74 static bool supports_thread_park_blocker() { return _version_info.thread_park_blocker; }
75
76 static bool is_gte_jdk14x_version() {
77 // Keep the semantics of this that the version number is >= 1.4
78 assert(is_jdk_version_initialized(), "Not initialized");
79 return _jdk_version >= 4;
80 }
81 static bool is_gte_jdk15x_version() {
82 // Keep the semantics of this that the version number is >= 1.5
83 assert(is_jdk_version_initialized(), "Not initialized");
84 return _jdk_version >= 5;
85 }
86 static bool is_gte_jdk16x_version() {
87 // Keep the semantics of this that the version number is >= 1.6
88 assert(is_jdk_version_initialized(), "Not initialized");
89 return _jdk_version >= 6;
90 }
91
92 static bool is_gte_jdk17x_version() {
93 // Keep the semantics of this that the version number is >= 1.7
94 assert(is_jdk_version_initialized(), "Not initialized");
95 return _jdk_version >= 7;
96 }
97
98 static bool is_jdk_version_initialized() {
99 return _jdk_version > 0;
100 }
101
102 // These methods are defined to deal with pre JDK 1.6 versions
103 static void set_jdk12x_version() {
104 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
105 _jdk_version = 2;
106 _version_info.jdk_version = (1 << 24) | (2 << 16);
107 }
108 static void set_jdk13x_version() {
109 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
110 _jdk_version = 3;
111 _version_info.jdk_version = (1 << 24) | (3 << 16);
112 }
113 static void set_jdk14x_version() {
114 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
115 _jdk_version = 4;
116 _version_info.jdk_version = (1 << 24) | (4 << 16);
117 }
118 static void set_jdk15x_version() {
119 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
120 _jdk_version = 5;
121 _version_info.jdk_version = (1 << 24) | (5 << 16);
122 }
123 };