jdk8-mips64-public/hotspot: src/share/vm/prims/whitebox.hpp@e2452c3ff7fb

8057752: WhiteBox extension support for testing
Summary: Refactored parts of whitebox.cpp to enable registration of whitebox methods defined outside this file.
Reviewed-by: mikael, ctornqvi, jmasa

     1 /*

     2  * Copyright (c) 2012, 2014, 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_WHITEBOX_HPP

    26 #define SHARE_VM_PRIMS_WHITEBOX_HPP

    28 #include "prims/jni.h"

    30 #include "memory/allocation.hpp"

    31 #include "oops/oopsHierarchy.hpp"

    32 #include "oops/symbol.hpp"

    33 #include "runtime/interfaceSupport.hpp"

    35 // Entry macro to transition from JNI to VM state.

    37 #define WB_ENTRY(result_type, header) JNI_ENTRY(result_type, header)

    38 #define WB_END JNI_END

    39 #define WB_METHOD_DECLARE(result_type) extern "C" result_type JNICALL

    41 #define CHECK_JNI_EXCEPTION_(env, value)                               \

    42   do {                                                                 \

    43     JavaThread* THREAD = JavaThread::thread_from_jni_environment(env); \

    44     if (HAS_PENDING_EXCEPTION) {                                       \

    45       return(value);                                                   \

    46     }                                                                  \

    47   } while (0)

    49 #define CHECK_JNI_EXCEPTION(env)                                       \

    50   do {                                                                 \

    51     JavaThread* THREAD = JavaThread::thread_from_jni_environment(env); \

    52     if (HAS_PENDING_EXCEPTION) {                                       \

    53       return;                                                          \

    54     }                                                                  \

    55   } while (0)

    57 class WhiteBox : public AllStatic {

    58  private:

    59   static bool _used;

    60  public:

    61   static bool used()     { return _used; }

    62   static void set_used() { _used = true; }

    63   static int offset_for_field(const char* field_name, oop object,

    64     Symbol* signature_symbol);

    65   static const char* lookup_jstring(const char* field_name, oop object);

    66   static bool lookup_bool(const char* field_name, oop object);

    68   static int array_bytes_to_length(size_t bytes);

    69   static void register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread,

    70     JNINativeMethod* method_array, int method_count);

    71   static void register_extended(JNIEnv* env, jclass wbclass, JavaThread* thread);

    72 };

    76 #endif // SHARE_VM_PRIMS_WHITEBOX_HPP

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

src/share/vm/prims/whitebox.hpp@e2452c3ff7fb

src/share/vm/prims/whitebox.hpp