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 *
62 return false;
63 }
64 };
65
66
67 ///////////////////////////////////////////////////////////////
68 //
69 // class SafeResourceMark
70 //
71 // ResourceMarks that work before threads exist
72 //
73
74 class SafeResourceMark : public ResourceMark {
75
76 ResourceArea* safe_resource_area() {
77 Thread* thread;
78
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 }
88
89 public:
90
91 SafeResourceMark() : ResourceMark(safe_resource_area()) {}
92
93 };
94
95 #endif // SHARE_VM_PRIMS_JVMTIUTIL_HPP
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1 /*
2 * Copyright (c) 1999, 2015, 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 *
62 return false;
63 }
64 };
65
66
67 ///////////////////////////////////////////////////////////////
68 //
69 // class SafeResourceMark
70 //
71 // ResourceMarks that work before threads exist
72 //
73
74 class SafeResourceMark : public ResourceMark {
75
76 ResourceArea* safe_resource_area() {
77 Thread* thread;
78
79 if (Threads::number_of_threads() == 0) {
80 return JvmtiUtil::single_threaded_resource_area();
81 }
82 thread = Thread::current_or_null();
83 if (thread == NULL) {
84 return JvmtiUtil::single_threaded_resource_area();
85 }
86 return thread->resource_area();
87 }
88
89 public:
90
91 SafeResourceMark() : ResourceMark(safe_resource_area()) {}
92
93 };
94
95 #endif // SHARE_VM_PRIMS_JVMTIUTIL_HPP
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