jdk8-mips64-public/hotspot: src/share/vm/prims/jvmtiUtil.hpp@db9981fd3124

8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank

     1 /*

     2  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #ifndef SHARE_VM_PRIMS_JVMTIUTIL_HPP

    26 #define SHARE_VM_PRIMS_JVMTIUTIL_HPP

    28 #include "jvmtifiles/jvmti.h"

    29 #include "memory/resourceArea.hpp"

    30 #include "prims/jvmtiEventController.hpp"

    32 ///////////////////////////////////////////////////////////////

    33 //

    34 // class JvmtiUtil

    35 //

    36 // class for miscellaneous jvmti utility static methods

    37 //

    39 class JvmtiUtil : AllStatic {

    41   static ResourceArea* _single_threaded_resource_area;

    43   static const char* _error_names[];

    44   static const bool  _event_threaded[];

    46 public:

    48   static ResourceArea* single_threaded_resource_area();

    50   static const char* error_name(int num)    { return _error_names[num]; }    // To Do: add range checking

    52   static const bool has_event_capability(jvmtiEvent event_type, const jvmtiCapabilities* capabilities_ptr);

    54   static const bool  event_threaded(int num) {

    55     if (num >= JVMTI_MIN_EVENT_TYPE_VAL && num <= JVMTI_MAX_EVENT_TYPE_VAL) {

    56       return _event_threaded[num];

    57     }

    58     if (num >= EXT_MIN_EVENT_TYPE_VAL && num <= EXT_MAX_EVENT_TYPE_VAL) {

    59       return false;

    60     }

    61     ShouldNotReachHere();

    62     return false;

    63   }

    64 };

    67 ///////////////////////////////////////////////////////////////

    68 //

    69 // class SafeResourceMark

    70 //

    71 // ResourceMarks that work before threads exist

    72 //

    74 class SafeResourceMark : public ResourceMark {

    76   ResourceArea* safe_resource_area() {

    77     Thread* thread;

    79     if (Threads::number_of_threads() == 0) {

    80       return JvmtiUtil::single_threaded_resource_area();

    81     }

    82     thread = ThreadLocalStorage::thread();

    83     if (thread == NULL) {

    84       return JvmtiUtil::single_threaded_resource_area();

    85     }

    86     return thread->resource_area();

    87   }

    89  public:

    91   SafeResourceMark() : ResourceMark(safe_resource_area()) {}

    93 };

    95 #endif // SHARE_VM_PRIMS_JVMTIUTIL_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jvmtiUtil.hpp@db9981fd3124

src/share/vm/prims/jvmtiUtil.hpp