0N/A/*
1879N/A * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
1472N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A
1879N/A#ifndef SHARE_VM_PRIMS_JVMTIUTIL_HPP
1879N/A#define SHARE_VM_PRIMS_JVMTIUTIL_HPP
1879N/A
1879N/A#include "jvmtifiles/jvmti.h"
1879N/A#include "memory/resourceArea.hpp"
1879N/A#include "prims/jvmtiEventController.hpp"
1879N/A
0N/A///////////////////////////////////////////////////////////////
0N/A//
0N/A// class JvmtiUtil
0N/A//
0N/A// class for miscellaneous jvmti utility static methods
0N/A//
0N/A
0N/Aclass JvmtiUtil : AllStatic {
0N/A
0N/A static ResourceArea* _single_threaded_resource_area;
0N/A
0N/A static const char* _error_names[];
0N/A static const bool _event_threaded[];
0N/A
0N/Apublic:
0N/A
0N/A static ResourceArea* single_threaded_resource_area();
0N/A
0N/A static const char* error_name(int num) { return _error_names[num]; } // To Do: add range checking
0N/A
0N/A static const bool has_event_capability(jvmtiEvent event_type, const jvmtiCapabilities* capabilities_ptr);
0N/A
0N/A static const bool event_threaded(int num) {
0N/A if (num >= JVMTI_MIN_EVENT_TYPE_VAL && num <= JVMTI_MAX_EVENT_TYPE_VAL) {
0N/A return _event_threaded[num];
0N/A }
0N/A if (num >= EXT_MIN_EVENT_TYPE_VAL && num <= EXT_MAX_EVENT_TYPE_VAL) {
0N/A return false;
0N/A }
0N/A ShouldNotReachHere();
0N/A return false;
0N/A }
0N/A};
0N/A
0N/A
0N/A///////////////////////////////////////////////////////////////
0N/A//
0N/A// class SafeResourceMark
0N/A//
0N/A// ResourceMarks that work before threads exist
0N/A//
0N/A
0N/Aclass SafeResourceMark : public ResourceMark {
0N/A
0N/A ResourceArea* safe_resource_area() {
0N/A Thread* thread;
0N/A
0N/A if (Threads::number_of_threads() == 0) {
0N/A return JvmtiUtil::single_threaded_resource_area();
0N/A }
0N/A thread = ThreadLocalStorage::thread();
0N/A if (thread == NULL) {
0N/A return JvmtiUtil::single_threaded_resource_area();
0N/A }
0N/A return thread->resource_area();
0N/A }
0N/A
0N/A public:
0N/A
0N/A SafeResourceMark() : ResourceMark(safe_resource_area()) {}
0N/A
0N/A};
1879N/A
1879N/A#endif // SHARE_VM_PRIMS_JVMTIUTIL_HPP