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1 /*
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2 * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // Register function to be called by before_exit
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26 extern "C" { void register_on_exit_function(void (*func)(void)) ;}
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27
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28 // Execute code before all handles are released and thread is killed; prologue to vm_exit
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29 extern void before_exit(JavaThread * thread);
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30
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31 // Forced VM exit (i.e, internal error or JVM_Exit)
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32 extern void vm_exit(int code);
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33
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34 // Wrapper for ::exit()
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35 extern void vm_direct_exit(int code);
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36
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37 // Shutdown the VM but do not exit the process
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38 extern void vm_shutdown();
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39 // Shutdown the VM and abort the process
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40 extern void vm_abort();
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41
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42 // Trigger any necessary notification of the VM being shutdown
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43 extern void notify_vm_shutdown();
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44
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45 // VM exit if error occurs during initialization of VM
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46 extern void vm_exit_during_initialization(Handle exception);
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47 extern void vm_exit_during_initialization(symbolHandle exception_name, const char* message);
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48 extern void vm_exit_during_initialization(const char* error, const char* message = NULL);
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49 extern void vm_shutdown_during_initialization(const char* error, const char* message = NULL);
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50
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51 class JDK_Version : AllStatic {
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52 friend class VMStructs;
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53 private:
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54 static jdk_version_info _version_info;
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55 static bool _pre_jdk16_version;
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56 static int _jdk_version; // JDK version number representing the release
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57 // i.e. n in 1.n.x (= jdk_minor_version())
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58
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59 public:
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60 static void initialize();
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61 static int jdk_major_version() { return JDK_VERSION_MAJOR(_version_info.jdk_version); }
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62 static int jdk_minor_version() { return JDK_VERSION_MINOR(_version_info.jdk_version); }
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63 static int jdk_micro_version() { return JDK_VERSION_MICRO(_version_info.jdk_version); }
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64 static int jdk_build_number() { return JDK_VERSION_BUILD(_version_info.jdk_version); }
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65
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66 static bool is_pre_jdk16_version() { return _pre_jdk16_version; }
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67 static bool is_jdk12x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 2; }
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68 static bool is_jdk13x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 3; }
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69 static bool is_jdk14x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 4; }
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70 static bool is_jdk15x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 5; }
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71 static bool is_jdk16x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 6; }
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72 static bool is_jdk17x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 7; }
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73
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74 static bool supports_thread_park_blocker() { return _version_info.thread_park_blocker; }
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75
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76 static bool is_gte_jdk14x_version() {
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77 // Keep the semantics of this that the version number is >= 1.4
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78 assert(is_jdk_version_initialized(), "Not initialized");
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79 return _jdk_version >= 4;
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80 }
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81 static bool is_gte_jdk15x_version() {
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82 // Keep the semantics of this that the version number is >= 1.5
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83 assert(is_jdk_version_initialized(), "Not initialized");
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84 return _jdk_version >= 5;
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85 }
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86 static bool is_gte_jdk16x_version() {
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87 // Keep the semantics of this that the version number is >= 1.6
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88 assert(is_jdk_version_initialized(), "Not initialized");
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89 return _jdk_version >= 6;
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90 }
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91
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92 static bool is_gte_jdk17x_version() {
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93 // Keep the semantics of this that the version number is >= 1.7
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94 assert(is_jdk_version_initialized(), "Not initialized");
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95 return _jdk_version >= 7;
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96 }
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97
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98 static bool is_jdk_version_initialized() {
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99 return _jdk_version > 0;
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100 }
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101
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102 // These methods are defined to deal with pre JDK 1.6 versions
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103 static void set_jdk12x_version() {
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104 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
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105 _jdk_version = 2;
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106 _version_info.jdk_version = (1 << 24) | (2 << 16);
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107 }
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108 static void set_jdk13x_version() {
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109 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
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110 _jdk_version = 3;
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111 _version_info.jdk_version = (1 << 24) | (3 << 16);
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112 }
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113 static void set_jdk14x_version() {
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114 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
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115 _jdk_version = 4;
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116 _version_info.jdk_version = (1 << 24) | (4 << 16);
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117 }
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118 static void set_jdk15x_version() {
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119 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
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120 _jdk_version = 5;
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121 _version_info.jdk_version = (1 << 24) | (5 << 16);
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122 }
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123 };
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