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src/share/vm/prims/jvmtiUtil.hpp@fd07a7e4222b (annotated)

src/share/vm/prims/jvmtiUtil.hpp

Mon, 03 Feb 2014 15:24:20 +0100

author

sla

date

Mon, 03 Feb 2014 15:24:20 +0100

changeset 6327

fd07a7e4222b

parent 2314

f95d63e2154a

child 6876

710a3c8b516e

permissions

-rw-r--r--

8033126: Can't call default methods from JNI
Reviewed-by: dholmes, acorn, kamg

duke@435	1	/*
stefank@2314	2	* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_PRIMS_JVMTIUTIL_HPP
stefank@2314	26	#define SHARE_VM_PRIMS_JVMTIUTIL_HPP
stefank@2314	27
stefank@2314	28	#include "jvmtifiles/jvmti.h"
stefank@2314	29	#include "memory/resourceArea.hpp"
stefank@2314	30	#include "prims/jvmtiEventController.hpp"
stefank@2314	31
duke@435	32	///////////////////////////////////////////////////////////////
duke@435	33	//
duke@435	34	// class JvmtiUtil
duke@435	35	//
duke@435	36	// class for miscellaneous jvmti utility static methods
duke@435	37	//
duke@435	38
duke@435	39	class JvmtiUtil : AllStatic {
duke@435	40
duke@435	41	static ResourceArea* _single_threaded_resource_area;
duke@435	42
duke@435	43	static const char* _error_names[];
duke@435	44	static const bool _event_threaded[];
duke@435	45
duke@435	46	public:
duke@435	47
duke@435	48	static ResourceArea* single_threaded_resource_area();
duke@435	49
duke@435	50	static const char* error_name(int num) { return _error_names[num]; } // To Do: add range checking
duke@435	51
duke@435	52	static const bool has_event_capability(jvmtiEvent event_type, const jvmtiCapabilities* capabilities_ptr);
duke@435	53
duke@435	54	static const bool event_threaded(int num) {
duke@435	55	if (num >= JVMTI_MIN_EVENT_TYPE_VAL && num <= JVMTI_MAX_EVENT_TYPE_VAL) {
duke@435	56	return _event_threaded[num];
duke@435	57	}
duke@435	58	if (num >= EXT_MIN_EVENT_TYPE_VAL && num <= EXT_MAX_EVENT_TYPE_VAL) {
duke@435	59	return false;
duke@435	60	}
duke@435	61	ShouldNotReachHere();
duke@435	62	return false;
duke@435	63	}
duke@435	64	};
duke@435	65
duke@435	66
duke@435	67	///////////////////////////////////////////////////////////////
duke@435	68	//
duke@435	69	// class SafeResourceMark
duke@435	70	//
duke@435	71	// ResourceMarks that work before threads exist
duke@435	72	//
duke@435	73
duke@435	74	class SafeResourceMark : public ResourceMark {
duke@435	75
duke@435	76	ResourceArea* safe_resource_area() {
duke@435	77	Thread* thread;
duke@435	78
duke@435	79	if (Threads::number_of_threads() == 0) {
duke@435	80	return JvmtiUtil::single_threaded_resource_area();
duke@435	81	}
duke@435	82	thread = ThreadLocalStorage::thread();
duke@435	83	if (thread == NULL) {
duke@435	84	return JvmtiUtil::single_threaded_resource_area();
duke@435	85	}
duke@435	86	return thread->resource_area();
duke@435	87	}
duke@435	88
duke@435	89	public:
duke@435	90
duke@435	91	SafeResourceMark() : ResourceMark(safe_resource_area()) {}
duke@435	92
duke@435	93	};
stefank@2314	94
stefank@2314	95	#endif // SHARE_VM_PRIMS_JVMTIUTIL_HPP