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src/share/vm/prims/whitebox.hpp@eef07cd490d4 (annotated)

src/share/vm/prims/whitebox.hpp

Wed, 03 Jul 2019 20:42:37 +0800

author

aoqi

date

Wed, 03 Jul 2019 20:42:37 +0800

changeset 9637

eef07cd490d4

parent 7535

7ae4e26cb1e0

child 9931

fd44df5e3bc3

permissions

-rw-r--r--

Merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#ifndef SHARE_VM_PRIMS_WHITEBOX_HPP
aoqi@0	26	#define SHARE_VM_PRIMS_WHITEBOX_HPP
aoqi@0	27
aoqi@0	28	#include "prims/jni.h"
aoqi@0	29
aoqi@0	30	#include "memory/allocation.hpp"
aoqi@0	31	#include "oops/oopsHierarchy.hpp"
sjohanss@7165	32	#include "oops/symbol.hpp"
sjohanss@7165	33	#include "runtime/interfaceSupport.hpp"
aoqi@0	34
aoqi@0	35	// Entry macro to transition from JNI to VM state.
aoqi@0	36
aoqi@0	37	#define WB_ENTRY(result_type, header) JNI_ENTRY(result_type, header)
aoqi@0	38	#define WB_END JNI_END
aoqi@0	39	#define WB_METHOD_DECLARE(result_type) extern "C" result_type JNICALL
aoqi@0	40
aoqi@0	41	#define CHECK_JNI_EXCEPTION_(env, value) \
aoqi@0	42	do { \
aoqi@0	43	JavaThread* THREAD = JavaThread::thread_from_jni_environment(env); \
aoqi@0	44	if (HAS_PENDING_EXCEPTION) { \
aoqi@0	45	return(value); \
aoqi@0	46	} \
aoqi@0	47	} while (0)
aoqi@0	48
aoqi@0	49	#define CHECK_JNI_EXCEPTION(env) \
aoqi@0	50	do { \
aoqi@0	51	JavaThread* THREAD = JavaThread::thread_from_jni_environment(env); \
aoqi@0	52	if (HAS_PENDING_EXCEPTION) { \
aoqi@0	53	return; \
aoqi@0	54	} \
aoqi@0	55	} while (0)
aoqi@0	56
aoqi@0	57	class WhiteBox : public AllStatic {
aoqi@0	58	private:
aoqi@0	59	static bool _used;
aoqi@0	60	public:
aoqi@0	61	static bool used() { return _used; }
aoqi@0	62	static void set_used() { _used = true; }
aoqi@0	63	static int offset_for_field(const char* field_name, oop object,
aoqi@0	64	Symbol* signature_symbol);
aoqi@0	65	static const char* lookup_jstring(const char* field_name, oop object);
aoqi@0	66	static bool lookup_bool(const char* field_name, oop object);
stefank@6992	67
stefank@6992	68	static int array_bytes_to_length(size_t bytes);
sjohanss@7165	69	static void register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread,
sjohanss@7165	70	JNINativeMethod* method_array, int method_count);
sjohanss@7165	71	static void register_extended(JNIEnv* env, jclass wbclass, JavaThread* thread);
aoqi@0	72	};
aoqi@0	73
aoqi@0	74
aoqi@0	75
aoqi@0	76	#endif // SHARE_VM_PRIMS_WHITEBOX_HPP