src/share/vm/runtime/java.hpp

changeset 435
a61af66fc99e
child 611
6b648fefb395
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/vm/runtime/java.hpp	Sat Dec 01 00:00:00 2007 +0000
     1.3 @@ -0,0 +1,123 @@
     1.4 +/*
     1.5 + * Copyright 1997-2006 Sun Microsystems, Inc.  All Rights Reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or
    1.24 + * have any questions.
    1.25 + *
    1.26 + */
    1.27 +
    1.28 +// Register function to be called by before_exit
    1.29 +extern "C" { void register_on_exit_function(void (*func)(void)) ;}
    1.30 +
    1.31 +// Execute code before all handles are released and thread is killed; prologue to vm_exit
    1.32 +extern void before_exit(JavaThread * thread);
    1.33 +
    1.34 +// Forced VM exit (i.e, internal error or JVM_Exit)
    1.35 +extern void vm_exit(int code);
    1.36 +
    1.37 +// Wrapper for ::exit()
    1.38 +extern void vm_direct_exit(int code);
    1.39 +
    1.40 +// Shutdown the VM but do not exit the process
    1.41 +extern void vm_shutdown();
    1.42 +// Shutdown the VM and abort the process
    1.43 +extern void vm_abort();
    1.44 +
    1.45 +// Trigger any necessary notification of the VM being shutdown
    1.46 +extern void notify_vm_shutdown();
    1.47 +
    1.48 +// VM exit if error occurs during initialization of VM
    1.49 +extern void vm_exit_during_initialization(Handle exception);
    1.50 +extern void vm_exit_during_initialization(symbolHandle exception_name, const char* message);
    1.51 +extern void vm_exit_during_initialization(const char* error, const char* message = NULL);
    1.52 +extern void vm_shutdown_during_initialization(const char* error, const char* message = NULL);
    1.53 +
    1.54 +class JDK_Version : AllStatic {
    1.55 +  friend class VMStructs;
    1.56 + private:
    1.57 +  static jdk_version_info _version_info;
    1.58 +  static bool             _pre_jdk16_version;
    1.59 +  static int              _jdk_version;  // JDK version number representing the release
    1.60 +                                         //  i.e. n in 1.n.x (= jdk_minor_version())
    1.61 +
    1.62 + public:
    1.63 +  static void initialize();
    1.64 +  static int  jdk_major_version() { return JDK_VERSION_MAJOR(_version_info.jdk_version); }
    1.65 +  static int  jdk_minor_version() { return JDK_VERSION_MINOR(_version_info.jdk_version); }
    1.66 +  static int  jdk_micro_version() { return JDK_VERSION_MICRO(_version_info.jdk_version); }
    1.67 +  static int  jdk_build_number()  { return JDK_VERSION_BUILD(_version_info.jdk_version); }
    1.68 +
    1.69 +  static bool is_pre_jdk16_version()        { return _pre_jdk16_version; }
    1.70 +  static bool is_jdk12x_version()           { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 2; }
    1.71 +  static bool is_jdk13x_version()           { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 3; }
    1.72 +  static bool is_jdk14x_version()           { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 4; }
    1.73 +  static bool is_jdk15x_version()           { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 5; }
    1.74 +  static bool is_jdk16x_version()           { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 6; }
    1.75 +  static bool is_jdk17x_version()           { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 7; }
    1.76 +
    1.77 +  static bool supports_thread_park_blocker() { return _version_info.thread_park_blocker; }
    1.78 +
    1.79 +  static bool is_gte_jdk14x_version() {
    1.80 +    // Keep the semantics of this that the version number is >= 1.4
    1.81 +    assert(is_jdk_version_initialized(), "Not initialized");
    1.82 +    return _jdk_version >= 4;
    1.83 +  }
    1.84 +  static bool is_gte_jdk15x_version() {
    1.85 +    // Keep the semantics of this that the version number is >= 1.5
    1.86 +    assert(is_jdk_version_initialized(), "Not initialized");
    1.87 +    return _jdk_version >= 5;
    1.88 +  }
    1.89 +  static bool is_gte_jdk16x_version() {
    1.90 +    // Keep the semantics of this that the version number is >= 1.6
    1.91 +    assert(is_jdk_version_initialized(), "Not initialized");
    1.92 +    return _jdk_version >= 6;
    1.93 +  }
    1.94 +
    1.95 +  static bool is_gte_jdk17x_version() {
    1.96 +    // Keep the semantics of this that the version number is >= 1.7
    1.97 +    assert(is_jdk_version_initialized(), "Not initialized");
    1.98 +    return _jdk_version >= 7;
    1.99 +  }
   1.100 +
   1.101 +  static bool is_jdk_version_initialized() {
   1.102 +    return _jdk_version > 0;
   1.103 +  }
   1.104 +
   1.105 +  // These methods are defined to deal with pre JDK 1.6 versions
   1.106 +  static void set_jdk12x_version() {
   1.107 +    assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
   1.108 +    _jdk_version = 2;
   1.109 +    _version_info.jdk_version = (1 << 24) | (2 << 16);
   1.110 +  }
   1.111 +  static void set_jdk13x_version() {
   1.112 +    assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
   1.113 +    _jdk_version = 3;
   1.114 +    _version_info.jdk_version = (1 << 24) | (3 << 16);
   1.115 +  }
   1.116 +  static void set_jdk14x_version() {
   1.117 +    assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
   1.118 +    _jdk_version = 4;
   1.119 +    _version_info.jdk_version = (1 << 24) | (4 << 16);
   1.120 +  }
   1.121 +  static void set_jdk15x_version() {
   1.122 +    assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
   1.123 +    _jdk_version = 5;
   1.124 +    _version_info.jdk_version = (1 << 24) | (5 << 16);
   1.125 +  }
   1.126 +};

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